The Mount Meager massif is a group of volcanic peaks in the Pacific Ranges of the Coast Mountains in southwestern British Columbia , Canada. Part of the Cascade Volcanic Arc of western North America, it is located 150 km (93 mi) north of Vancouver at the northern end of the Pemberton Valley and reaches a maximum elevation of 2,680 m (8,790 ft) . The massif is capped by several eroded volcanic edifices, including lava domes , volcanic plugs and overlapping piles of lava flows; these form at least six major summits including Mount Meager which is the second highest of the massif.
135-483: Mount Meager may refer to: Mount Meager massif , a group of mountains in British Columbia, Canada Mount Meager (British Columbia) , a mountain of the above massif See also [ edit ] Meager (disambiguation) [REDACTED] Topics referred to by the same term This disambiguation page lists articles about distinct geographical locations with
270-530: A taxonomic synonym for the dingo . Wozencraft referred to a 1999 mitochondrial DNA (mtDNA) study as one of the guides in forming his decision, and listed the 38 subspecies of C. lupus under the biological common name of "wolf", the nominate subspecies being the Eurasian wolf ( C. l. lupus ) based on the type specimen that Linnaeus studied in Sweden. Studies using paleogenomic techniques reveal that
405-520: A broader snout, shorter ears, a shorter torso and a longer tail. It is slender and powerfully built, with a large, deeply descending rib cage , a sloping back, and a heavily muscled neck. The wolf's legs are moderately longer than those of other canids, which enables the animal to move swiftly, and to overcome the deep snow that covers most of its geographical range in winter, though more short-legged ecomorphs are found in some wolf populations. The ears are relatively small and triangular. The wolf's head
540-503: A combined US-Canada-Washington State-B.C. effort". The Mount Meager massif is not monitored closely enough by the Geological Survey of Canada to ascertain how active its magma system is. The Canadian National Seismograph Network has been established to monitor earthquakes throughout Canada, but it is too far away to provide an accurate indication of activity under the mountain. It may sense an increase in seismic activity if
675-540: A crack then crystallizes as a sheet intrusion , are exposed by deep erosion. Perkin's Pillar , a vertical tower of brecciated lava, represented an erosional remnant of the massif until its collapse in June 2005. More than 10 streams drain meltwater from the Mount Meager massif, including Capricorn Creek , Job Creek, No Good Creek, Angel Creek, Devastation Creek, Canyon Creek and Affliction Creek . The massif
810-448: A family of eight wolves (two adults, juveniles, and yearlings), or sometimes two or three such families, with examples of exceptionally large packs consisting of up to 42 wolves being known. Cortisol levels in wolves rise significantly when a pack member dies, indicating the presence of stress. During times of prey abundance caused by calving or migration, different wolf packs may join together temporarily. Offspring typically stay in
945-433: A few times and then retreating from a perceived danger. Aggressive or self-assertive wolves are characterized by their slow and deliberate movements, high body posture and raised hackles , while submissive ones carry their bodies low, flatten their fur, and lower their ears and tail. Scent marking involves urine, feces, and preputial and anal gland scents. This is more effective at advertising territory than howling and
1080-696: A long history of eruptions and poses a threat to the surrounding region. Any volcanic hazard ranging from landslides to eruptions could pose a significant risk to humans and wildlife. Although the massif has not erupted for more than 2,000 years, it could produce a major eruption; if this were to happen, relief efforts would be quickly organized. Teams such as the Interagency Volcanic Event Notification Plan (IVENP) are prepared to notify people threatened by volcanic eruptions in Canada. The Mount Meager massif produced
1215-491: A major volcanic hazard, capable of producing highly explosive eruptions. A full-scale eruption would threaten many populated areas throughout southern British Columbia and Alberta. Pemberton , a community 50 km (31 mi) downstream from the massif, faces high risk. If the volcano were to erupt violently, it would disrupt the Lillooet River fishery as well as nearby mining and logging activity. In addition,
1350-478: A massive debris flow cascaded down from Capricorn Glacier at a speed of 30 m (98 ft) per second. Experts initially estimated that the volume of debris totaled 40,000,000 m (1.4 × 10 cu ft) , which would make it the second largest landslide on record in Canadian history, behind the 1965 Hope Slide that removed 47,000,000 m (1.7 × 10 cu ft) of rock from Johnson Peak,
1485-501: A mountain in the Nicolum Valley near Hope, British Columbia. However, the landslide was later estimated to be more than 48,500,000 m (1.71 × 10 cu ft) , which would make it the largest of all time in Canada. The 2010 landslide was 300 m (980 ft) wide and 2 km (1.2 mi) long, creating a dam across Meager Creek and the Lillooet River. This created a lake just upstream. Early concerns that
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#17327662870531620-674: A museum specimen of a wolf from southern China collected in 1963 showed a genome that was 12–14% admixed from this unknown canid. In North America, some coyotes and wolves show varying degrees of past genetic admixture . In more recent times, some male Italian wolves originated from dog ancestry, which indicates female wolves will breed with male dogs in the wild. In the Caucasus Mountains , ten percent of dogs including livestock guardian dogs , are first generation hybrids. Although mating between golden jackals and wolves has never been observed, evidence of jackal-wolf hybridization
1755-754: A press release by the U.S. Department of Agriculture in 1921, the infamous Custer Wolf relied on coyotes to accompany him and warn him of danger. Though they fed from his kills, he never allowed them to approach him. Interactions have been observed in Eurasia between wolves and golden jackals, the latter's numbers being comparatively small in areas with high wolf densities. Wolves also kill red , Arctic and corsac foxes , usually in disputes over carcasses, sometimes eating them. Brown bears typically dominate wolf packs in disputes over carcasses, while wolf packs mostly prevail against bears when defending their den sites. Both species kill each other's young. Wolves eat
1890-557: A profound effect on British Columbia's climate. Lying just east of the Pacific Ocean, they shear off moisture-laden air coming off the ocean, causing heavy rainfall on their western slopes. This precipitation is among the most extreme in North America, feeding lush forests on the mountain range's western slopes. Valleys surrounding the massif contain old-growth forests . The area also features wetland habitats, plants of
2025-508: A relative rate of more than 10 mm (0.39 in) per year at an oblique angle to the subduction zone. Because of the huge fault area, the Cascadia subduction zone can produce large earthquakes of magnitude 7.0 or greater. The interface between the Juan de Fuca and North American plates remains locked for periods of roughly 500 years. During these periods, stress builds up on
2160-469: A satellite vent. The eruption that formed the Bridge River Vent was probably fed through a conduit from the magma chamber below the massif. A stress field controlled by regional tectonics has been commonly invoked to explain the dynamics of lateral flow (flowing laterally rather than vertically toward the surface) of magma from a reservoir to produce such eruptions. The name Meager Mountain
2295-575: A small eruption under the summit ice cap of Nevado del Ruiz . Jack Souther , a leading authority on geothermal resources and volcanism in the Canadian Cordillera, expressed concern about the potential for another eruption: At present the volcanoes of the Garibaldi Belt are quiet, presumed dead but still not completely cold. But the flare-up of Meager Mountain 2,500 years ago raises the question, "Could it happen again?" Was
2430-409: A variety of arthropod exoparasites, including fleas , ticks , lice , and mites . The most harmful to wolves, particularly pups, is the mange mite ( Sarcoptes scabiei ), though they rarely develop full-blown mange , unlike foxes. Endoparasites known to infect wolves include: protozoans and helminths ( flukes , tapeworms , roundworms and thorny-headed worms ). Most fluke species reside in
2565-411: A weight of 69–79 kg (152–174 lb). The wolf has very dense and fluffy winter fur, with a short undercoat and long, coarse guard hairs . Most of the undercoat and some guard hairs are shed in spring and grow back in autumn. The longest hairs occur on the back, particularly on the front quarters and neck. Especially long hairs grow on the shoulders and almost form a crest on the upper part of
2700-526: Is a major vent. The fourth and final eruptive period 150,000 to less than 3,000 years ago produced rhyodacite lava flows, domes, breccias and subvolcanic intrusions of the Plinth, Job and Capricorn assemblages. Around Mount Job, porphyritic hornblende, biotite and quartz rhyodacite lava flows of the Job Assemblage were erupted. They are prominently layered and locally columnar jointed . On
2835-510: Is correct, the knowledge of eruptions at the Mount Meager massif in the last 10,000 years is insufficient. Two small hot spring clusters are found at the Mount Meager massif, indicating magmatic heat is still present. These two clusters of hot springs, known as the Meager Creek Hot Springs and Pebble Creek Hot Springs , are most likely related to recent volcanic activity at the massif. The Meager Creek Hot Springs ,
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#17327662870532970-479: Is difficult and ambiguous, with some authors choosing to include C. mosbachensis (which first appeared around 1.4 million years ago) as an early subspecies of C. lupus. Considerable morphological diversity existed among wolves by the Late Pleistocene . Many Late Pleistocene wolf populations had more robust skulls and teeth than modern wolves, often with a shortened snout , a pronounced development of
3105-525: Is dominated by wild medium-sized hoofed mammals and domestic species. The wolf depends on wild species, and if these are not readily available, as in Asia, the wolf is more reliant on domestic species. Across Eurasia, wolves prey mostly on moose , red deer , roe deer and wild boar . In North America, important range-wide prey are elk , moose, caribou , white-tailed deer and mule deer . Prior to their extirpation from North America, wild horses were among
3240-1220: Is itself thought to be derived from the Proto-Germanic * wulfaz . The Proto-Indo-European root * wĺ̥kʷos may also be the source of the Latin word for the animal lupus (* lúkʷos ). The name "gray wolf" refers to the grayish colour of the species. Since pre-Christian times, Germanic peoples such as the Anglo-Saxons took on wulf as a prefix or suffix in their names. Examples include Wulfhere ("Wolf Army"), Cynewulf ("Royal Wolf"), Cēnwulf ("Bold Wolf"), Wulfheard ("Wolf-hard"), Earnwulf ("Eagle Wolf"), Wulfstān ("Wolf Stone") Æðelwulf ("Noble Wolf"), Wolfhroc ("Wolf-Frock"), Wolfhetan ("Wolf Hide"), Scrutolf ("Garb Wolf"), Wolfgang ("Wolf Gait") and Wolfdregil ("Wolf Runner"). Gray wolf [REDACTED] Coyote [REDACTED] African wolf [REDACTED] Ethiopian wolf [REDACTED] Golden jackal [REDACTED] Dhole [REDACTED] African wild dog [REDACTED] Side-striped jackal [REDACTED] Black-backed jackal [REDACTED] In 1758,
3375-399: Is large and heavy, with a wide forehead, strong jaws and a long, blunt muzzle. The skull is 230–280 mm (9–11 in) in length and 130–150 mm (5–6 in) in width. The teeth are heavy and large, making them better suited to crushing bone than those of other canids, though they are not as specialized as those found in hyenas . Its molars have a flat chewing surface, but not to
3510-541: Is largely survivable in wolves, but can be lethal to pups. Bacterial diseases carried by wolves include: brucellosis , Lyme disease , leptospirosis , tularemia , bovine tuberculosis , listeriosis and anthrax . Although lyme disease can debilitate individual wolves, it does not appear to significantly affect wolf populations. Leptospirosis can be contracted through contact with infected prey or urine, and can cause fever , anorexia , vomiting, anemia , hematuria , icterus , and death. Wolves are often infested with
3645-489: Is located within one of British Columbia's many territorial divisions known as the Lillooet Land District . The geomorphology of the Mount Meager massif resembles that of Glacier Peak , another Cascade Arc volcano in the U.S. state of Washington . It consists of at least four overlapping stratovolcanoes that are younger from south to north. With a total volume of 20 km (4.8 cu mi) ,
3780-640: Is most likely used mainly to induce vomiting to rid themselves of intestinal parasites or long guard hairs. They are known to eat the berries of mountain-ash , lily of the valley , bilberries , cowberries , European black nightshade , grain crops, and the shoots of reeds. In times of scarcity, wolves will readily eat carrion . In Eurasian areas with dense human activity, many wolf populations are forced to subsist largely on livestock and garbage. As prey in North America continue to occupy suitable habitats with low human density, North American wolves eat livestock and garbage only in dire circumstances. Cannibalism
3915-562: Is not uncommon in wolves during harsh winters, when packs often attack weak or injured wolves and may eat the bodies of dead pack members. Wolves typically dominate other canid species in areas where they both occur. In North America, incidents of wolves killing coyotes are common, particularly in winter, when coyotes feed on wolf kills. Wolves may attack coyote den sites, digging out and killing their pups, though rarely eating them. There are no records of coyotes killing wolves, though coyotes may chase wolves if they outnumber them. According to
4050-677: Is now extirpated (locally extinct) from much of its range in Western Europe, the United States and Mexico, and completely in the British Isles and Japan. In modern times, the wolf occurs mostly in wilderness and remote areas. The wolf can be found between sea level and 3,000 m (9,800 ft). Wolves live in forests, inland wetlands , shrublands , grasslands (including Arctic tundra ), pastures , deserts, and rocky peaks on mountains. Habitat use by wolves depends on
4185-458: Is often used in combination with scratch marks. Wolves increase their rate of scent marking when they encounter the marks of wolves from other packs. Lone wolves will rarely mark, but newly bonded pairs will scent mark the most. These marks are generally left every 240 m (260 yd) throughout the territory on regular travelways and junctions. Such markers can last for two to three weeks, and are typically placed near rocks, boulders, trees, or
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4320-415: Is south of Capricorn Mountain and Mount Meager. Devastator Peak , also known as The Devastator , has an elevation of 2,315 m (7,595 ft) and is the lowest and southernmost summit of the massif. Streams and glaciers have played a significant role in dissecting the massif, and its upper slopes are covered with snow and ice. Numerous feeder dikes to older units, formed when magma intrudes into
4455-450: Is the largest wild extant member of the family Canidae , and is further distinguished from other Canis species by its less pointed ears and muzzle, as well as a shorter torso and a longer tail. The wolf is nonetheless related closely enough to smaller Canis species, such as the coyote and the golden jackal , to produce fertile hybrids with them. The wolf's fur is usually mottled white, brown, gray, and black, although subspecies in
4590-471: Is the most unstable mountain massif in Canada and may also be its most active landslide area. More than 25 landslides have occurred there in the last 8,000 years, and debris flows, mainly from the massif, have also filled Meager Creek valley to a depth of 250 m (820 ft) . Large volcano-associated debris flows known as lahars pose a threat to populated areas downstream from glaciated volcanoes. Although lahars are typically associated with
4725-595: Is usually constructed not more than 500 m (550 yd) away from a water source. It typically faces southwards where it can be better warmed by sunlight exposure, and the snow can thaw more quickly. Resting places, play areas for the pups, and food remains are commonly found around wolf dens. The odor of urine and rotting food emanating from the denning area often attracts scavenging birds like magpies and ravens . Though they mostly avoid areas within human sight, wolves have been known to nest near homes, paved roads and railways . During pregnancy, female wolves remain in
4860-435: Is usually founded by an unrelated dispersing male and female, travelling together in search of an area devoid of other hostile packs. Wolf packs rarely adopt other wolves into their fold and typically kill them. In the rare cases where other wolves are adopted, the adoptee is almost invariably an immature animal of one to three years old, and unlikely to compete for breeding rights with the mated pair. This usually occurs between
4995-706: The cottonwood - willow - thimbleberry association and glaucous willowherbs . Wildlife such as wolves , wolverine , moose , raptors , black-tailed deer , mountain goats and waterfowl inhabit the area as well as grizzly and black bears . The Mount Meager massif is part of the Garibaldi Volcanic Belt (GVB), the northernmost segment of the Cascade Volcanic Arc . This volcanic belt includes cinder cones , calderas , stratovolcanoes and subglacial volcanoes (volcanoes under glaciers or ice sheets ) that have been active in
5130-751: The Bridge River Ash . In the Bridge River and Lillooet River area the ash occurs as a coarse-textured deposit with blocks of pumice up to 10 cm (3.9 in) in diameter. The texture rapidly becomes finer eastward from the Bridge River. At Big Bar on the Fraser River pellets are up to 3 mm (0.12 in) in diameter while pellets in the Messiter area have a maximum diameter of 0.7 mm (0.028 in) . Situated on
5265-462: The Canada–United States border or any eruption that would affect Canada. Although the Mount Meager massif is a potentially active volcano, as of 2016 there was no evidence of an imminent eruption. Many shallow earthquakes normally occur before a volcano erupts. As magma rises to the surface over time, it will probably create much more vigour and heat at the regional hot springs, as well as
5400-589: The Cascadia subduction zone . Geologically these two volcanoes contain the same rock types as those found elsewhere in the Cascade Arc, including rhyolites , dacites , andesites and basaltic andesites . Such rock types are produced by subduction zone volcanism indicating volcanism at Silverthrone and Franklin Glacier is probably related to subduction . If these two volcanoes are true Cascade Arc volcanoes,
5535-601: The Eurasian lynx , which may feed on smaller prey where wolves are present and may be suppressed by large wolf populations. Wolves encounter cougars along portions of the Rocky Mountains and adjacent mountain ranges. Wolves and cougars typically avoid encountering each other by hunting at different elevations for different prey ( niche partitioning ). This is more difficult during winter. Wolves in packs usually dominate cougars and can steal their kills or even kill them, while one-to-one encounters tend to be dominated by
Mount Meager - Misplaced Pages Continue
5670-570: The Mesozoic era. At the southwestern end of the massif, dacite with sparse phenocrysts (large and conspicuous crystals) of quartz , plagioclase and hornblende represents a 200 m (660 ft) thick remnant of subhorizontal lava flows. Although the first eruptive period is generally estimated to have started about 2,200,000 years ago, two andesite eruptions may have occurred about 2,400,000 and 2,600,000 years ago. The first might have produced lava flows and breccia, whereas
5805-782: The Mount Meager massif is not the northernmost volcano of the Garibaldi Belt or the Cascade Arc. Volcanism in the Cascade Volcanic Arc is caused by subduction of the Juan de Fuca Plate under the North American Plate at the Cascadia subduction zone . This is a 1,094 km (680 mi) long fault zone lying 80 km (50 mi) off the Pacific Northwest from Northern California to southwestern British Columbia. The plates move at
5940-630: The Plinth Assemblage . Mount Meager, a massive lava dome or volcanic plug, consists of steeply inclined flow layering and was the southern source of Plinth Assemblage lava flows and breccias. Plinth Peak was also formed during the Plinth Assemblage eruptive stage and is mostly composed of prominent columnar or partly jointed lava flows. Its north ridge and flat-topped summit contain three areas of steep flow layering and subhorizontally-oriented columnar jointing. These areas are possibly
6075-555: The Pylon Assemblage . With a maximum thickness of more than 1 km (0.62 mi) , the Pylon Assemblage is the largest rock unit comprising the Mount Meager massif. The lava flows are layered, separated by a thin layer of lapilli tuff and reddened breccia. A concentration of subvolcanic intrusions and coarse volcanic breccia clasts more than 100 m (330 ft) in length suggest that Devastator Peak
6210-546: The United States Geological Survey . Gray wolf See Subspecies of Canis lupus The wolf ( Canis lupus ; pl. : wolves ), also known as the gray wolf or grey wolf , is a canine native to Eurasia and North America . More than thirty subspecies of Canis lupus have been recognized, including the dog and dingo , though gray wolves, as popularly understood, only comprise naturally-occurring wild subspecies. The wolf
6345-525: The University of Toronto suggested that a smaller eruption may have occurred at the Bridge River Vent after the eruption 2,400 years ago, sending tephra southeast. A tephra deposit overlying the Bridge River Ash at Otter Creek shows strong genetic relationships with the Bridge River Ash, differing only by its absence of biotite. In earlier publications, this tephra is classified as part of
6480-457: The incubation period for rabies is eight to 21 days, and results in the host becoming agitated, deserting its pack, and travelling up to 80 km (50 mi) a day, thus increasing the risk of infecting other wolves. Although canine distemper is lethal in dogs, it has not been recorded to kill wolves, except in Canada and Alaska. The canine parvovirus, which causes death by dehydration , electrolyte imbalance , and endotoxic shock or sepsis ,
6615-537: The rabies virus , may infect wolves. The global wild wolf population was estimated to be 300,000 in 2003 and is considered to be of Least Concern by the International Union for Conservation of Nature (IUCN). Wolves have a long history of interactions with humans, having been despised and hunted in most pastoral communities because of their attacks on livestock, while conversely being respected in some agrarian and hunter-gatherer societies. Although
6750-610: The temporalis muscle, and robust premolars . It is proposed that these features were specialized adaptations for the processing of carcass and bone associated with the hunting and scavenging of Pleistocene megafauna . Compared with modern wolves, some Pleistocene wolves showed an increase in tooth breakage similar to that seen in the extinct dire wolf . This suggests they either often processed carcasses, or that they competed with other carnivores and needed to consume their prey quickly. The frequency and location of tooth fractures in these wolves indicates they were habitual bone crackers like
6885-412: The Bridge River Ash. However, it has been dated to be about 2,000 radiocarbon years old, indicating that this tephra is a few hundred years younger than the Bridge River Ash. Apparent absence of biotite and occurrence well south of the Bridge River Ash likewise favour a separate identity. Large-volume, fine-grained debris flows north of the volcano might have been caused by volcanic activity. If this
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#17327662870537020-628: The Egyptian Sinai Peninsula showed admixture with Middle Eastern gray wolves and dogs. There is evidence of gene flow between golden jackals and Middle Eastern wolves, less so with European and Asian wolves, and least with North American wolves. This indicates the golden jackal ancestry found in North American wolves may have occurred before the divergence of the Eurasian and North American wolves. The common ancestor of
7155-399: The Eurasian wolf is a mixture of ochreous (yellow to orange) and rusty ochreous (orange/red/brown) colours with light gray. The muzzle is pale ochreous gray, and the area of the lips, cheeks, chin, and throat is white. The top of the head, forehead, under and between the eyes, and between the eyes and ears is gray with a reddish film. The neck is ochreous. Long, black tips on the hairs along
7290-510: The Hurley River Forestry Bridge and the other in the river. Damming of the Lillooet River by a landslide would be indicated by the lowering of the water level while the release of a landslide dam would be followed by water level rise. A massive rock avalanche occurred at the massif on July 22, 1975. With a volume of 13,000,000 m (460,000,000 cu ft) , it buried and killed a group of four geologists at
7425-545: The Lillooet River Watershed". Mount Job and Pylon Peak were both officially named on January 17, 1957, from their labels on Carter's 1954 sketch map of the Lillooet River. Capricorn Mountain was originally identified as Mount Capricorn in the 1932 Canadian Alpine Journal , Vol XXI. According to the journal, "the name chosen for the 8440-foot mountain was Mt. Capricorn, a variation of the all-too-common appellation "Goat Mountain", applied by Bert [Perkins] to
7560-513: The Middle East, and Asia is estimated to be fairly recent at around 1,600 years ago. Among New World wolves, the Mexican wolf diverged around 5,400 years ago. In the distant past, there was gene flow between African wolves , golden jackals , and gray wolves. The African wolf is a descendant of a genetically admixed canid of 72% wolf and 28% Ethiopian wolf ancestry. One African wolf from
7695-629: The Mount Cayley and Mount Meager massifs. Fumarolic activity and sulfur smells were detected at the massif in 2016, with a fumarole field discovered on the Job Glacier. This was followed by monitoring of the mountain by Natural Resources Canada volcanologists , the results of which did not detect much seismicity. The fumarole field was considered unsafe to approach or enter due to the presence of hydrogen sulfide and potentially unstable ice crevasses. The Mount Meager massif remains
7830-487: The Mount Meager massif as well as Mount Cayley to the south. Although very few eruptions in Canada have been witnessed by people, it remains nonetheless an area of intense volcanic activity. According to the Geologic Hazards '91 Workshop, "priority should be given to eruption impact studies of the two recently active volcanic centres closest to urban areas, Mount Baker and Mount Meager. The former case will require
7965-596: The Mount Meager massif is a large explosive eruption that occurred about 2,400 years ago. This eruption, which likely reached 5 on the Volcanic Explosivity Index (VEI) , was similar to the 1980 eruption of Mount St. Helens . It sent a massive Plinian column at least 20 km (12 mi) high into the atmosphere . Prevailing westerly winds carried volcanic ash from this explosion eastwards to as far as Alberta . Nearby areas were devastated by heavy pyroclastic fall when parts of
8100-480: The Mount Meager massif lies in the immediate proximity of a major air traffic route . Volcanic ash reduces visibility and can cause jet engine failure, as well as damage to flight control systems. Even a minor eruption from the volcano could cause massive devastation by rapidly melting glacial ice to produce large debris flows. An example of such an event is the 1985 Armero tragedy in Colombia , which resulted from
8235-541: The Plinian column collapsed. Later, a series of pyroclastic flows were erupted and travelled 7 km (4.3 mi) downstream. After this, a lava flow was erupted that repeatedly collapsed on the steep slopes of Plinth Peak, creating a thick, welded breccia deposit that blocked the Lillooet River. This created a lake just upstream which later collapsed to produce a massive outburst flood . Large boulders were carried downstream for more than 2 km (1.2 mi) , but
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#17327662870538370-738: The Silverthrone Caldera as the northernmost volcano of the Garibaldi Volcanic Belt, while others contend that the geology of the massif more closely matches that of the GVB. It is also unclear whether the Milbanke Sound Cones are part of the Garibaldi Belt or formed by different tectonic processes. However, there is evidence the Silverthrone and Franklin Glacier complexes are related to activity at
8505-518: The Swedish botanist and zoologist Carl Linnaeus published in his Systema Naturae the binomial nomenclature . Canis is the Latin word meaning " dog ", and under this genus he listed the doglike carnivores including domestic dogs, wolves, and jackals . He classified the domestic dog as Canis familiaris , and the wolf as Canis lupus . Linnaeus considered the dog to be a separate species from
8640-442: The abundance of prey, snow conditions, livestock densities, road densities, human presence and topography . Like all land mammals that are pack hunters , the wolf feeds predominantly on ungulates that can be divided into large size 240–650 kg (530–1,430 lb) and medium size 23–130 kg (51–287 lb), and have a body mass similar to that of the combined mass of the pack members. The wolf specializes in preying on
8775-481: The age of the pack's pups. They tend to increase in size in areas with low prey populations, or when the pups reach the age of six months when they have the same nutritional needs as adults. Wolf packs travel constantly in search of prey, covering roughly 9% of their territory per day, on average 25 km/d (16 mi/d). The core of their territory is on average 35 km (14 sq mi) where they spend 50% of their time. Prey density tends to be much higher on
8910-414: The age of two years and sexually mature from the age of three years. The age of first breeding in wolves depends largely on environmental factors: when food is plentiful, or when wolf populations are heavily managed, wolves can rear pups at younger ages to better exploit abundant resources. Females are capable of producing pups every year, one litter annually being the average. Oestrus and rut begin in
9045-473: The arctic region may be nearly all white. Of all members of the genus Canis , the wolf is most specialized for cooperative game hunting as demonstrated by its physical adaptations to tackling large prey, its more social nature , and its highly advanced expressive behaviour , including individual or group howling . It travels in nuclear families consisting of a mated pair accompanied by their offspring. Offspring may leave to form their own packs on
9180-437: The back form a broad stripe, with black hair tips on the shoulders, upper chest and rear of the body. The sides of the body, tail, and outer limbs are a pale dirty ochreous colour, while the inner sides of the limbs, belly, and groin are white. Apart from those wolves which are pure white or black, these tones vary little across geographical areas, although the patterns of these colours vary between individuals. In North America,
9315-536: The bottom of the Pacific Ocean , burying this large depression , or area of sunken land. Massive floods from prehistoric Glacial Lake Missoula during the Late Pleistocene also deposited large amounts of sediment into the trench. However, as with other subduction zones the outer margin is slowly being compressed like a giant spring. When the stored energy is suddenly released by slippage across
9450-655: The brown bears they kill, while brown bears seem to eat only young wolves. Wolf interactions with American black bears are much rarer because of differences in habitat preferences. Wolves have been recorded on numerous occasions actively seeking out American black bears in their dens and killing them without eating them. Unlike brown bears, American black bears frequently lose against wolves in disputes over kills. Wolves also dominate and sometimes kill wolverines , and will chase off those that attempt to scavenge from their kills. Wolverines escape from wolves in caves or up trees. Wolves may interact and compete with felids , such as
9585-645: The cat, who likewise will kill wolves. Wolves more broadly affect cougar population dynamics and distribution by dominating territory and prey opportunities and disrupting the feline's behaviour. Wolf and Siberian tiger interactions are well-documented in the Russian Far East , where tigers significantly depress wolf numbers, sometimes to the point of localized extinction . In Israel, Palestine, Central Asia and India wolves may encounter striped hyenas , usually in disputes over carcasses. Striped hyenas feed extensively on wolf-killed carcasses in areas where
9720-609: The coat colours of wolves follow Gloger's rule , wolves in the Canadian arctic being white and those in southern Canada, the U.S., and Mexico being predominantly gray. In some areas of the Rocky Mountains of Alberta and British Columbia, the coat colour is predominantly black, some being blue-gray and some with silver and black. Differences in coat colour between sexes is absent in Eurasia; females tend to have redder tones in North America. Black-coloured wolves in North America acquired their colour from wolf-dog admixture after
9855-555: The confluence of Devastation Creek and Meager Creek. The landslide originated on the western flank of Pylon Peak and flowed down Devastation Creek for 7 km (4.3 mi) . Geologic studies have shown that the landslide was the result of a complex history of glacial erosion, loading and unloading of the toe (a protrusion at the front of the slide mass) caused by the Little Ice Age advance and subsequent retreat of Devastation Glacier due to global warming. On August 6, 2010,
9990-460: The coyote and the wolf admixed with a ghost population of an extinct unidentified canid. This canid was genetically close to the dhole and evolved after the divergence of the African hunting dog from the other canid species. The basal position of the coyote compared to the wolf is proposed to be due to the coyote retaining more of the mitochondrial genome of this unidentified canid. Similarly,
10125-622: The creek. Despite its official name, Mount Meager is sometimes mistakenly spelled Mount Meagre or Mount Meagher . The massif's peak names were submitted by Canadian mountaineer Neal M. Carter , who was a member of the British ;Columbia Mountaineering Club . Devastator Peak was officially named on August 3, 1977 in association with Devastation Glacier. Plinth Peak was officially named on September 6, 1951 as identified in Carter's 1932 sketch map and article "Explorations in
10260-433: The dam might collapse and flood the Lillooet River valley ended a day later, when part of the dam ruptured and slowly released the accumulated water. An evacuation alert was rescinded, and nearly 1,500 residents were allowed to return to their homes on the weekend after the landslide occurred. No injuries were reported. [REDACTED] This article incorporates public domain material from websites or documents of
10395-585: The deposit for its properties as a construction material and as an absorber for oil and stonewash . About 7,500 m (260,000 cu ft) of pumice was mined in 1998 by the Great Pacific Pumice Incorporation . The Mount Meager massif has been investigated as a potential geothermal energy resource. At least 16 geothermal sites have been identified in British Columbia , the Mount Meager area being one of
10530-457: The destructive floodwaters continued further. Later, a small dacite lava flow was erupted, which cooled into well-preserved columnar joints. The entire eruption cycle originated from the Bridge River Vent on the northeastern flank of Plinth Peak. This is the latest known eruption of the Mount Meager massif, as well as the largest known Holocene explosive eruption in Canada. However, it is unknown when this eruption ended. In 1977, J. A. Westgate of
10665-558: The east side of Affliction Glacier, they overlie porphyritic andesite lava flows of the Pylon Assemblage. Later, rhyodacite lava flows of the Capricorn Assemblage were erupted and flowed over biotite rhyodacite of the Job Assemblage. The upper 600 m (2,000 ft) of Capricorn Mountain and Mount Job are formed by these lava flows. Another sequence of rhyodacite lava flows were subsequently erupted and form
10800-448: The effects of volcanic eruptions, they can occur whenever conditions allow collapse and movement of mud originating from existing volcanic ash deposits. Melting snow and ice, intense rainfall or the breakout of a summit crater lake can all generate lahars. Landslides at the Mount Meager massif may also be indirectly related to climate change . Several tension cracks extend up to the summit, and as global warming causes glaciers to melt,
10935-587: The explosive eruption of Meager Mountain the last gasp of the Garibaldi Volcanic Belt or only the most recent event in its on-going life? The short answer is nobody really knows for sure. So just in case I sometimes do a quick check of the old hot-spots when I get off the Peak Chair. Because of concerns about potential eruptions and danger to communities in the area, the Geological Survey of Canada plans to create hazard maps and emergency plans for
11070-534: The extant wolf C. lupus from the earlier C. mosbachensis (which in turn descended from C. etruscus ) is widely accepted. Among the oldest fossils of the modern grey wolf is from Ponte Galeria in Italy, dating to 406,500 ± 2,400 years ago. Remains from Cripple Creek Sump in Alaska may be considerably older, around 1 million years old, though differentiating between the remains of modern wolves and C. mosbachensis
11205-532: The fault at irregular intervals, the Cascadia subduction zone can create enormous earthquakes such as the magnitude 9.0 Cascadia earthquake of January 26, 1700 . However earthquakes along the Cascadia subduction zone are uncommon, and there is evidence of a decline in volcanic activity over the last few million years. The probable explanation lies in the rate of convergence between the Juan de Fuca and North American plates, which converge at 3 cm (1.2 in) to 4 cm (1.6 in) per year, about half
11340-482: The fear of wolves exists in many human societies, the majority of recorded attacks on people have been attributed to animals suffering from rabies . Wolf attacks on humans are rare because wolves are relatively few, live away from people, and have developed a fear of humans because of their experiences with hunters, farmers, ranchers, and shepherds. The English "wolf" stems from the Old English wulf , which
11475-465: The first arrival of dogs across the Bering Strait 12,000 to 14,000 years ago. Research into the inheritance of white colour from dogs into wolves has yet to be undertaken. Wolves occur across Eurasia and North America. However, deliberate human persecution because of livestock predation and fear of attacks on humans has reduced the wolf's range to about one-third of its historic range; the wolf
11610-504: The first eruptive period between 2,200,000 and 1,900,000 years ago, eruption of intermediate to felsic pyroclastic rocks occurred at the southern end of the massif. Basal breccia, perhaps from an exhumed vent, underlies andesite and tuffs , flows, lava domes and breccia of Devastator Peak. It has a maximum thickness of 300 m (980 ft) and overlies a 400 m (1,300 ft) high ridge of bedrock that formed between 251,000,000 and 65,500,000 years ago during
11745-482: The five areas most capable of commercial development. At Meager Creek, there is potential for commercial development of a 100–200 megawatt power station . Nearby Pebble Creek also has "very good" potential for a 200 megawatt plant. Because the two creeks offer the greatest potential for commercial development, the Mount Meager area is the most promising site for geothermal power development in British Columbia. At least 54 eruptions have occurred at
11880-468: The formation of new springs or fumaroles . These signs generally occur for weeks, months or years before a potential eruption, although the possibility of an eruption occurring in the near future remains low. A significant structural collapse associated with loss of glacial buttressing might affect the magma plumbing system and lead to an eruption. Scientists have argued that the Mount Meager massif, made of altered volcanic rock which breaks apart easily,
12015-834: The hind feet are 220–250 mm ( 8 + 5 ⁄ 8 – 9 + 7 ⁄ 8 in). The size and weight of the modern wolf increases proportionally with latitude in accordance with Bergmann's rule . The mean body mass of the wolf is 40 kg (88 lb), the smallest specimen recorded at 12 kg (26 lb) and the largest at 79.4 kg (175 lb). On average, European wolves weigh 38.5 kg (85 lb), North American wolves 36 kg (79 lb), and Indian and Arabian wolves 25 kg (55 lb). Females in any given wolf population typically weigh 2.3–4.5 kg (5–10 lb) less than males. Wolves weighing over 54 kg (119 lb) are uncommon, though exceptionally large individuals have been recorded in Alaska and Canada. In central Russia, exceptionally large males can reach
12150-482: The interface between the plates and causes tectonic uplift of the North American margin. When the plate finally slips, it releases 500 years of stored energy in a massive earthquake. Unlike most subduction zones worldwide, there is no deep oceanic trench present along the continental margin in Cascadia. The mouth of the Columbia River empties directly into the subduction zone and deposits silt at
12285-523: The largest in British Columbia, remain free of snow for most of the year. The springs at the Mount Meager massif might be evidence of a shallow magma chamber beneath the surface. Between 1970 and 2005 more than 20 small earthquakes were recorded at the volcano. The magnitudes of these events were generally no higher than 2.0 on the Richter magnitude scale and they originated 20 km (12 mi) to less than 1 km (0.62 mi) below
12420-441: The largest volcanic eruption in Canada in the last 10,000 years. About 2,400 years ago, an explosive eruption formed a volcanic crater on its northeastern flank and sent avalanches of hot ash, rock fragments and volcanic gases down the northern flank of the volcano. Evidence for more recent volcanic activity has been documented at the volcano, such as hot springs and earthquakes . The Mount Meager massif has also been
12555-696: The last 10,000 years. The latest explosive eruption in the Garibaldi Volcanic Belt occurred at a crater on the northeastern slope of the massif about 2,400 years ago, which forms a clearly defined depression. The GVB extends north from the Watts Point volcano to at least as far as the Meager massif. Because little is known about the volcanoes north of the massif, such as the Silverthrone and Franklin Glacier volcanic complexes , experts disagree about their nature. Some scientists regard
12690-432: The latter may have erupted mainly breccia. The second eruptive period between 1,600,000 and 1,400,000 years ago produced rhyodacite tuff, breccia, lavas and domes of The Devastator Assemblage . This 500 m (1,600 ft) thick geological formation lies on the south and west flanks of Pylon Peak and Devastator Peak. Its western portion consists of roughly layered tephra while its eastern end represents
12825-399: The lava flows and subvolcanic intrusions of a partly preserved vent. Here, The Devastator Assemblage is massive and steeply truncates basal breccia from the first eruptive period. Volcanic activity of the third eruptive period occurred between 1,100,000 and 200,000 years ago. A thick sequence of andesite lava flows were erupted from the volcanic plug of Devastator Peak, creating
12960-478: The lineage that led to dogs from other Old World wolves around 11,100–12,300 years ago. An extinct Late Pleistocene wolf may have been the ancestor of the dog, with the dog's similarity to the extant wolf being the result of genetic admixture between the two. The dingo, Basenji , Tibetan Mastiff and Chinese indigenous breeds are basal members of the domestic dog clade. The divergence time for wolves in Europe,
13095-471: The massif becomes highly restless, but this may only provide a warning for a large eruption; the system might detect activity only once the volcano has started erupting. If the Mount Meager massif were to erupt, mechanisms exist to orchestrate relief efforts. The Interagency Volcanic Event Notification Plan (IVENP) was created to outline the notification procedure of some of the main agencies that would respond to an erupting volcano in Canada, an eruption close to
13230-584: The massif formed in the last million years. The volcano is made of volcanic rocks ranging from rhyodacite to basalt . Rhyodacite forms a series of eroded volcanic plugs which form the highest peaks. Their slopes are covered with their eruptive products and serve as the surface expressions of intrusions . As a result, they provide a unique opportunity to study the relationships between magma chambers and their lavas. The mafic (rich in magnesium and iron ), intermediate (between mafic and felsic) and felsic (rich in feldspar and quartz ) volcanic rocks of
13365-525: The massif in the last 2,600,000 years, ranging in character from effusive to explosive. Four primary eruptive periods have been identified, with individual eruptions separated by thousands of years. Large northwest–southeast trending structures paralleling Harrison Lake and the Pemberton Valley may control volcanic activity at the volcano or at least create zones of crustal weakness that are penetrated by rising magma batches. During
13500-487: The massif is older than most volcanoes in the Cascade Arc, tracing its history back to 2,200,000 years ago. In the Cascade Range , the oldest volcanoes are generally no more than a million years old. This includes Mount Rainier (500,000 years old), Lassen Peak (25,000 years old), Mount Jefferson (290,000 years old) and Mount St. Helens (50,000 years old). However, portions of
13635-424: The massif were erupted from at least eight volcanic vents. The Bridge River Vent is a relatively young volcanic crater that formed during an eruption about 2,400 years ago. This eruption ranged in character from explosive to effusive and involved lava dome extrusion, pyroclastic flows , lahars and lava flows. Eastward migration of the eruption column spread material across Western Canada to deposit
13770-560: The massif. As Pemberton continues to grow it will eventually extend into the surrounding mountains, creating a major hazard for people living there. The landslide risk is somewhat mitigated by the Lillooet River Early Warning System which was established in 2014 to alert the Pemberton Valley of landslides. Monitoring is done by measuring the Lillooet River water level using two sensors: one on
13905-471: The meltwater reaches deep into the massif. It then flows along the ruptured surfaces creating landslide zones. Because the Mount Meager massif is capable of producing large landslides, Meager Creek valley is probably the most dangerous valley in the Canadian Cordillera . Rapidly growing communities down the Lillooet River valley, such as Pemberton, are vulnerable despite their distance from
14040-424: The middle of the back is 60–70 mm ( 2 + 3 ⁄ 8 – 2 + 3 ⁄ 4 in), and the guard hairs on the shoulders generally do not exceed 90 mm ( 3 + 1 ⁄ 2 in), but can reach 110–130 mm ( 4 + 3 ⁄ 8 – 5 + 1 ⁄ 8 in). A wolf's coat colour is determined by its guard hairs. Wolves usually have some hairs that are white, brown, gray and black. The coat of
14175-527: The modern spotted hyena . Genomic studies suggest modern wolves and dogs descend from a common ancestral wolf population. A 2021 study found that the Himalayan wolf and the Indian plains wolf are part of a lineage that is basal to other wolves and split from them 200,000 years ago. Other wolves appear to share most of their common ancestry much more recently, within the last 23,000 years (around
14310-593: The modern wolf and the dog are sister taxa , as modern wolves are not closely related to the population of wolves that was first domesticated . In 2019, a workshop hosted by the IUCN /Species Survival Commission's Canid Specialist Group considered the New Guinea singing dog and the dingo to be feral Canis familiaris , and therefore should not be assessed for the IUCN Red List . The phylogenetic descent of
14445-400: The months of February and May. Adoptee males may mate with an available pack female and then form their own pack. In some cases, a lone wolf is adopted into a pack to replace a deceased breeder. Wolves are territorial and generally establish territories far larger than they require to survive assuring a steady supply of prey. Territory size depends largely on the amount of prey available and
14580-958: The most frequently consumed prey of North American wolves. Wolves can digest their meal in a few hours and can feed several times in one day, making quick use of large quantities of meat. A well-fed wolf stores fat under the skin, around the heart, intestines, kidneys, and bone marrow, particularly during the autumn and winter. Nonetheless, wolves are not fussy eaters. Smaller-sized animals that may supplement their diet include rodents , hares , insectivores and smaller carnivores. They frequently eat waterfowl and their eggs. When such foods are insufficient, they prey on lizards , snakes , frogs , and large insects when available. Wolves in some areas may consume fish and even marine life. Wolves also consume some plant material. In Europe, they eat apples, pears, figs , melons, berries and cherries . In North America, wolves eat blueberries and raspberries . They also eat grass, which may provide some vitamins, but
14715-417: The neck. The hairs on the cheeks are elongated and form tufts. The ears are covered in short hairs and project from the fur. Short, elastic and closely adjacent hairs are present on the limbs from the elbows down to the calcaneal tendons . The winter fur is highly resistant to the cold. Wolves in northern climates can rest comfortably in open areas at −40 °C (−40 °F) by placing their muzzles between
14850-401: The northeastern flank of Plinth Peak, the Bridge River Vent has an elevation of 1,524 m (5,000 ft) . It has oversteepened walls covered with ice and debris from volcanic activity and slope collapses. The crater is roughly bowl-shaped, although it is breached on the northern side. Because the Bridge River Vent is located on the northern slope of the Mount Meager massif, it represents
14985-478: The number of worms and the age of the host. The wolf is a social animal . Its populations consist of packs and lone wolves, most lone wolves being temporarily alone while they disperse from packs to form their own or join another one. The wolf's basic social unit is the nuclear family consisting of a mated pair accompanied by their offspring. The average pack size in North America is eight wolves and 5.5 in Europe. The average pack across Eurasia consists of
15120-456: The onset of sexual maturity and in response to competition for food within the pack. Wolves are also territorial , and fights over territory are among the principal causes of mortality. The wolf is mainly a carnivore and feeds on large wild hooved mammals as well as smaller animals, livestock, carrion , and garbage. Single wolves or mated pairs typically have higher success rates in hunting than do large packs. Pathogens and parasites, notably
15255-451: The pack for 10–54 months before dispersing. Triggers for dispersal include the onset of sexual maturity and competition within the pack for food. The distance travelled by dispersing wolves varies widely; some stay in the vicinity of the parental group, while other individuals may travel great distances of upwards of 206 km (128 mi), 390 km (240 mi), and 670 km (420 mi) from their natal (birth) packs. A new pack
15390-459: The pack usually before and after hunts, to pass on an alarm particularly at a den site, to locate each other during a storm, while crossing unfamiliar territory, and to communicate across great distances. Wolf howls can under certain conditions be heard over areas of up to 130 km (50 sq mi). Other vocalizations include growls , barks and whines. Wolves do not bark as loudly or continuously as dogs do in confrontations, rather barking
15525-466: The pads come in contact with ice and snow. In warm climates, the fur is coarser and scarcer than in northern wolves. Female wolves tend to have smoother furred limbs than males and generally develop the smoothest overall coats as they age. Older wolves generally have more white hairs on the tip of the tail, along the nose, and on the forehead. Winter fur is retained longest by lactating females, although with some hair loss around their teats. Hair length on
15660-477: The peak and the end of the Last Glacial Maximum ), originating from Siberia or Beringia . While some sources have suggested that this was a consequence of a population bottleneck , other studies have suggested that this a result of gene flow homogenising ancestry. A 2016 genomic study suggests that Old World and New World wolves split around 12,500 years ago followed by the divergence of
15795-580: The principal causes of wolf mortality, one study concluding that 14–65% of wolf deaths in Minnesota and the Denali National Park and Preserve were due to other wolves. Wolves communicate using vocalizations, body postures, scent, touch, and taste. The phases of the moon have no effect on wolf vocalization, and despite popular belief, wolves do not howl at the Moon. Wolves howl to assemble
15930-412: The pumice. It was crushed, removed and stored close to the village of Pemberton . Later the bridge that was used to access the pumice deposit was washed out and mining operations were not renewed. Mining resumed in 1988 when the deposit was staked by L. B. Bustin. In 1990 the pumice outcrop was bought by D. R. Carefoot from the owners B. Chore and M. Beaupre. In a program from 1991 to 1992 workers evaluated
16065-550: The rate of convergence from seven million years ago. Six main summits constitute the Mount Meager massif. The highest and northernmost summit is Plinth Peak with an elevation of 2,680 m (8,790 ft) . Mount Meager itself is 2,650 m (8,690 ft) in elevation. Capricorn Mountain west of Mount Meager rises with an elevation of 2,570 m (8,430 ft) . Just west of Capricorn Mountain lies Mount Job , 2,493 m (8,179 ft) in elevation. Pylon Peak with an elevation of 2,481 m (8,140 ft)
16200-410: The rear legs and covering their faces with their tail. Wolf fur provides better insulation than dog fur and does not collect ice when warm breath is condensed against it. In cold climates, the wolf can reduce the flow of blood near its skin to conserve body heat. The warmth of the foot pads is regulated independently from the rest of the body and is maintained at just above tissue-freezing point where
16335-417: The remains of volcanic plugs or lava domes that were the northern source of Plinth Assemblage lava flows. The Mosaic Assemblage , a sparsely porphyritic plagioclase- augite - olivine basalt and trachybasalt formation, also formed during the fourth eruptive period. It is the remains of scoriaceous lava flows, breccias, volcanic bombs and pillow lavas . The best known and most documented eruption of
16470-474: The same extent as the coyote, whose diet contains more vegetable matter. Females tend to have narrower muzzles and foreheads, thinner necks, slightly shorter legs, and less massive shoulders than males. Adult wolves measure 105–160 cm (41–63 in) in length and 80–85 cm (31–33 in) at shoulder height. The tail measures 29–50 cm (11–20 in) in length, the ears 90–110 mm ( 3 + 1 ⁄ 2 – 4 + 3 ⁄ 8 in) in height, and
16605-501: The same name. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Mount_Meager&oldid=870243197 " Category : Place name disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Mount Meager massif The Garibaldi Volcanic Belt (GVB) has
16740-552: The second half of winter and lasts for two weeks. Dens are usually constructed for pups during the summer period. When building dens, females make use of natural shelters like fissures in rocks, cliffs overhanging riverbanks and holes thickly covered by vegetation. Sometimes, the den is the appropriated burrow of smaller animals such as foxes, badgers or marmots. An appropriated den is often widened and partly remade. On rare occasions, female wolves dig burrows themselves, which are usually small and short with one to three openings. The den
16875-433: The skeletons of large animals. Raised leg urination is considered to be one of the most important forms of scent communication in the wolf, making up 60–80% of all scent marks observed. Wolves are monogamous , mated pairs usually remaining together for life. Should one of the pair die, another mate is found quickly. With wolves in the wild, inbreeding does not occur where outbreeding is possible. Wolves become mature at
17010-576: The source of several large landslides in the past, including a massive debris flow in 2010 that swept down Meager Creek and the Lillooet River. The Mount Meager massif lies in the Coast Mountains , which extend from Vancouver to the Alaskan ;Panhandle for 1,600 km (990 mi) . It is about 300 km (190 mi) wide, cut by fjords , narrow inlets with steep cliffs created by glacial erosion. The Coast Mountains have
17145-490: The stream which drains the Capricorn glacier at its base". Subsequently, the peak was renamed to Capricorn Mountain on June 22, 1967. A large pumice outcrop more than 2,000 m (6,600 ft) long and 1,000 m (3,300 ft) wide has been the subject of mining operations since at least the 1970s. The deposit was first held by J. MacIsaac. In the mid-1970s the second owner W. H. Willes investigated and mined
17280-546: The surface. Other volcanoes in the Garibaldi Volcanic Belt with recorded seismicity include Mount Garibaldi , Mount Cayley and Silverthrone Caldera . Seismic data suggest that these volcanoes still contain active magma chambers, indicating that some Garibaldi Belt volcanoes are probably active with significant potential hazards. The seismic activity corresponds with some of Canada's recently formed volcanoes and with persistent volcanoes that have had major explosive activity throughout their history such as Mount Garibaldi and
17415-551: The territory's periphery. Wolves tend to avoid hunting on the fringes of their range to avoid fatal confrontations with neighbouring packs. The smallest territory on record was held by a pack of six wolves in northeastern Minnesota, which occupied an estimated 33 km (13 sq mi), while the largest was held by an Alaskan pack of ten wolves encompassing 6,272 km (2,422 sq mi). Wolf packs are typically settled, and usually leave their accustomed ranges only during severe food shortages. Territorial fights are among
17550-476: The two species interact. One-to-one, hyenas dominate wolves, and may prey on them, but wolf packs can drive off single or outnumbered hyenas. There is at least one case in Israel of a hyena associating and cooperating with a wolf pack. Viral diseases carried by wolves include: rabies , canine distemper , canine parvovirus , infectious canine hepatitis , papillomatosis , and canine coronavirus . In wolves,
17685-404: The vulnerable individuals of large prey, with a pack of 15 able to bring down an adult moose . The variation in diet between wolves living on different continents is based on the variety of hoofed mammals and of available smaller and domesticated prey. In North America, the wolf's diet is dominated by wild large hoofed mammals (ungulates) and medium-sized mammals. In Asia and Europe, their diet
17820-541: The wolf because of its "cauda recurvata" (upturning tail) which is not found in any other canid . In the third edition of Mammal Species of the World published in 2005, the mammalogist W. Christopher Wozencraft listed under C. lupus 36 wild subspecies, and proposed two additional subspecies: familiaris (Linnaeus, 1758) and dingo (Meyer, 1793). Wozencraft included hallstromi —the New Guinea singing dog —as
17955-468: The wolf's intestines. Tapeworms are commonly found in wolves, which they get though their prey, and generally cause little harm in wolves, though this depends on the number and size of the parasites, and the sensitivity of the host. Symptoms often include constipation , toxic and allergic reactions , irritation of the intestinal mucosa , and malnutrition . Wolves can carry over 30 roundworm species, though most roundworm infections appear benign, depending on
18090-470: Was adopted on May 6, 1924, as labelled on a 1923 British Columbia map. In 1966 the volcano was renamed Mount Meager . According to a BC Geographical Names letter written in March 1983, "the local name, Cathedral, was duplicated elsewhere, so the mountain was renamed Meager after the creek of that name which lies to the south of it". Meager Creek is named after J. B. Meager who owned timber licences on
18225-536: Was discovered through mitochondrial DNA analysis of jackals living in the Caucasus Mountains and in Bulgaria. In 2021, a genetic study found that the dog's similarity to the extant gray wolf was the result of substantial dog-into-wolf gene flow , with little evidence of the reverse. The wolf is the largest extant member of the family Canidae , and is further distinguished from coyotes and jackals by
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