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36-579: Horicon Marsh is a marsh located in northern Dodge and southern Fond du Lac counties of Wisconsin . It is the site of both a national and a state wildlife refuge . Horicon Marsh was created by the Green Bay lobe of the Wisconsin glaciation during the Pleistocene era. The glacier , during its advance, created many drumlins (a glacial landform ) in the region, many of which have become
72-597: A consequence of sexual conflict between males and females, resulting in coevolutionary process that reduce fit, or that functions to decrease ease of having sex. The Anseriformes and the Galliformes ( pheasants , etc.) belong to a common group, the Galloanserae . They are the most primitive neognathous birds, and as such they should follow the palaeognathae ( ratites and tinamous ) in bird classification systems. Several unusual extinct families of birds like
108-409: A considerable number of mainly Late Cretaceous and Paleogene fossils have been described where it is uncertain whether or not they are anseriforms. This is because almost all orders of aquatic birds living today either originated or underwent a major radiation during that time, making it hard to decide whether some waterbird-like bone belongs into this family or is the product of parallel evolution in
144-581: A different set of organisms. Saltwater marshes are found around the world in mid to high latitudes , wherever there are sections of protected coastline. They are located close enough to the shoreline that the motion of the tides affects them, and, sporadically, they are covered with water. They flourish where the rate of sediment buildup is greater than the rate at which the land level is sinking. Salt marshes are dominated by specially adapted rooted vegetation, primarily salt-tolerant grasses. Salt marshes are most commonly found in lagoons , estuaries , and on
180-522: A freshwater marsh, the ocean tides affect this form of marsh. However, without the stresses of salinity at work in its saltwater counterpart, the diversity of the plants and animals that live in and use freshwater tidal marshes is much higher than in salt marshes. The most severe threats to this form of marsh are the increasing size and pollution of the cities surrounding them. Ranging greatly in size and geographic location, freshwater marshes make up North America's most common form of wetland. They are also
216-576: A habitat for many species of plants, animals, and insects that have adapted to living in flooded conditions or other environments. The plants must be able to survive in wet mud with low oxygen levels. Many of these plants, therefore, have aerenchyma , channels within the stem that allow air to move from the leaves into the rooting zone. Marsh plants also tend to have rhizomes for underground storage and reproduction. Common examples include cattails , sedges , papyrus and sawgrass . Aquatic animals, from fish to salamanders , are generally able to live with
252-512: A habitat free from fish, which eat the eggs and young of amphibians. An example is the endangered gopher frog . Similar temporary ponds occur in other world ecosystems, where they may have local names. However, vernal pool can be applied to all such temporary pool ecosystems. Playa lakes are a form of shallow freshwater marsh in the southern high plains of the United States. Like vernal pools, they are only present at certain times of
288-457: A low amount of oxygen in the water. Some can obtain oxygen from the air instead, while others can live indefinitely in conditions of low oxygen. The pH in marshes tends to be neutral to alkaline , as opposed to bogs , where peat accumulates under more acid conditions. Marshes provide habitats for many kinds of invertebrates, fish , amphibians, waterfowl and aquatic mammals. Marshes have extremely high levels of biological production, some of
324-477: A region in the East of England , the embanked marshes are also known as Fens . Some areas have already lost 90% of their wetlands, including marshes. They have been drained to create agricultural land or filled to accommodate urban sprawl . Restoration is returning marshes to the landscape to replace those lost in the past. Restoration can be done on a large scale, such as by allowing rivers to flood naturally in
360-496: The Wisconsin Department of Natural Resources (DNR). Millions of waterfowl, including over 200,000 Canada geese , migrate through the marsh. The refuges are habitats for many species of birds , especially ducks, pelicans, great blue herons , and Canada geese (which have become increasingly common since the 1980s), as well as fish , frogs , snakes , turtles , muskrats , insects and plants . Horicon Marsh
396-512: The ducks , geese , and swans . Most modern species in the order are highly adapted for an aquatic existence at the water surface. With the exception of screamers, males have penises , a trait that has been lost in the Neoaves . Due to their aquatic nature, most species are web-footed. Anseriformes are one of only two types of modern bird to be confirmed present during the Mesozoic alongside
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#1732772725149432-657: The Horicon Marsh Wildlife Refuge Bill, providing for the construction of a dam to raise the water to normal levels and for the acquisition of the land by the government. During the 1940s, the United States Fish and Wildlife Service bought the northern portions of the marsh. Today the northern two-thirds, approximately 21,400 acres (87 km), forms the Horicon National Wildlife Refuge. It is managed by
468-488: The U.S. Fish and Wildlife Service. Presently, the marsh is 32,000 acres (130 km) in area, most of it open water and cattail marsh. The southern third, approximately 11,000 acres (45 km), is owned by the state of Wisconsin and forms the Horicon Marsh State Wildlife Area, which was established as a nesting area for waterfowl and resting area for migratory birds . It is managed by
504-404: The albatross-like pseudotooth birds and the giant flightless gastornithids and mihirungs have been found to be stem-anseriforms based on common features found in the skull region, beak physiology and pelvic region. The genus Vegavis for a while was found to be the earliest member of the anseriform crown group but a recent 2017 paper has found it to be just outside the crown group in
540-469: The area, they named the marsh "The Great Marsh of the Winnebagos". The first permanent modern settlement along the marsh was the town of Horicon . In 1846, a dam was built to power the town's first sawmill . The dam held the water in the marsh, causing the water level to rise by nine feet. The "marsh" was called Lake Horicon, and was, at the time, called the largest man-made lake in the world. In 1869,
576-499: The common ancestors of ducks, geese, swans, and screamers , the last group once thought to be galliformes, but now genetically confirmed to be closely related to geese. The first known duck fossils start to appear about 34 million years ago. Waterfowl are the best-known examples of sexually antagonistic genital coevolution in vertebrates, causing genital adaptations to coevolve in each sex to advance control over mating and fertilization. Sexually antagonistic coevolution (or SAC) occurs as
612-533: The dabbling ducks or shelducks, is not fully resolved. See the Anatidae article for more information, and for alternate taxonomic approaches. Anatidae is traditionally divided into subfamilies Anatinae and Anserinae. The Anatinae consists of tribes Anatini , Aythyini , Mergini and Tadornini . The higher-order classification below follows a phylogenetic analysis performed by Mikko's Phylogeny Archive and John Boyd's website. Unassigned Anatidae: In addition,
648-481: The dam was torn down by order of the State Supreme Court, which ruled in favor of landowners whose land had been flooded. The area became a marsh once more. In 1883, two sportsmen's clubs reported huge flocks of geese in the marsh, and stated that 500,000 ducks hatched annually, and 30,000 muskrats and mink were trapped in the southern half of the marsh. Both birds and hunters flocked to the area, and
684-1052: The edges of lakes and streams, where they form a transition between the aquatic and terrestrial ecosystems . They are often dominated by grasses , rushes or reeds. If woody plants are present they tend to be low-growing shrubs, and the marsh is sometimes called a carr . This form of vegetation is what differentiates marshes from other types of wetland such as swamps , which are dominated by trees , and mires , which are wetlands that have accumulated deposits of acidic peat . Marshes provide habitats for many kinds of invertebrates , fish , amphibians , waterfowl and aquatic mammals . This biological productivity means that marshes contain 0.1% of global sequestered terrestrial carbon . Moreover, they have an outsized influence on climate resilience of coastal areas and waterways, absorbing high tides and other water changes due to extreme weather . Though some marshes are expected to migrate upland, most natural marshlands will be threatened by sea level rise and associated erosion . Marshes provide
720-646: The ending of the last Ice Age. Dozens of 1200-year-old effigy mounds were built by the Mound Builders in the surrounding low ridges. Arrowheads have been found dating to 12,000 years ago. Later the region was inhabited by the Potawotomi , primarily to the east of the marsh, and the Ho-Chunk to the west. Seven well-traveled Native American foot trails met at the southern end of the marsh at the present location of Horicon . When Europeans first arrived in
756-457: The family Vegaviidae . Below is the general consensus of the phylogeny of anseriforms and their stem relatives. † Pelagornithidae (pseudo-tooth birds) [REDACTED] † Gastornithidae [REDACTED] † Dromornithidae (mihirungs) [REDACTED] † Vegaviidae Anseriformes (screamers and waterfowl) [REDACTED] [REDACTED] [REDACTED] Anatidae systematics, especially regarding placement of some "odd" genera in
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#1732772725149792-863: The former lake's basin, the Horicon Marsh was formed. The Horicon Marsh State Wildlife Area is one of nine units of the Ice Age National Scientific Reserve system, being considered to contain unique, representative evidence of the Ice Age of the Pleistocene era. The Horicon Marsh area has been inhabited by humans, including the Paleo-Indians , the Hopewellian people and the Mound Builders , since
828-641: The fringes of large rivers. The different types are produced by factors such as water level, nutrients, ice scour , and waves. Large tracts of tidal marsh have been embanked and artificially drained. They are usually known by the Dutch name of polders . In Northern Germany and Scandinavia they are called Marschland , Marsch or marsk ; in France marais maritime . In the Netherlands and Belgium, they are designated as marine clay districts. In East Anglia ,
864-447: The highest in the world, and therefore are important in supporting fisheries. Marshes also improve water quality by acting as a sink to filter pollutants and sediment from the water that flows through them. Marshes partake in water purification by providing nutrient and pollution consumption. Marshes (and other wetlands) are able to absorb water during periods of heavy rainfall and slowly release it into waterways and therefore reduce
900-413: The islands of Horicon Marsh. The marsh and surrounding Dodge County have the highest concentration of drumlins in the world. During the glacier's retreat, a moraine was created, forming a natural dam holding back the waters from the melting glacier and forming Glacial Lake Horicon. The Rock River slowly eroded the moraine, and the lake drained. As the levels of silt , clay and peat accumulated in
936-628: The local duck population was devastated. From 1910 to 1914, an attempt was made to drain the marsh and convert it into farmland; these attempts failed, and afterwards the land was widely considered to be useless. In November 1933, an accidentally caused wildfire would destroy much of Horicon Marsh; necessitating a restoration project. It was re-opened to the public in April 1935. In 1927, the Wisconsin State Legislature , after pressure from conservationists beginning in 1921, passed
972-469: The magnitude of flooding. Marshes also provide the services of tourism, recreation, education, and research. Marshes differ depending mainly on their location and salinity . These factors greatly influence the range and scope of animal and plant life that can survive and reproduce in these environments. The three main types of marsh are salt marshes , freshwater tidal marshes , and freshwater marshes . These three can be found worldwide, and each contains
1008-486: The most diverse of the three types of marsh. Some examples of freshwater marsh types in North America are: Wet meadows occur in shallow lake basins, low-lying depressions, and the land between shallow marshes and upland areas. They also happen on the edges of large lakes and rivers. Wet meadows often have very high plant diversity and high densities of buried seeds. They are regularly flooded but are often dry in
1044-549: The open, a condition that took centuries to recover from. The anseriformes and galliformes are thought to have survived in the cover of burrows and water, and not to have needed trees for food and reproduction. The earliest known stem anseriform is the presbyornithid Teviornis from the Nemegt Formation of Mongolia . Some members apparently surviving the KT extinction event , including presbyornithids , thought to be
1080-468: The other dinosaurs, and in fact were among the very few birds to survive their extinction, along with their cousins the galliformes . These two groups only occupied two ecological niches during the Mesozoic, living in water and on the ground, while the toothed enantiornithes were the dominant birds that ruled the trees and air. The asteroid that ended the Mesozoic destroyed all trees as well as animals in
1116-463: The sheltered side of a shingle or sandspit . The currents there carry the fine particles around to the quiet side of the spit, and sediment begins to build up. These locations allow the marshes to absorb the excess nutrients from the water running through them before they reach the oceans and estuaries. These marshes are slowly declining. Coastal development and urban sprawl have caused significant loss of these essential habitats. Although considered
Horicon Marsh - Misplaced Pages Continue
1152-407: The spring, or on a small scale by returning wetlands to urban landscapes. Waterfowl Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae , the largest family, which includes over 170 species of waterfowl, among them
1188-631: The state capital for Kimberly Plache and at Disneyworld . [REDACTED] This article incorporates public domain material from websites or documents of the United States Fish and Wildlife Service . Marsh In ecology , a marsh is a wetland that is dominated by herbaceous plants rather than by woody plants . More in general, the word can be used for any low-lying and seasonally waterlogged terrain. In Europe and in agricultural literature low-lying meadows that require draining and embanked polderlands are also referred to as marshes or marshland. Marshes can often be found at
1224-492: The summer. Vernal pools are a type of marsh found only seasonally in shallow depressions in the land. They can be covered in shallow water, but in the summer and fall, they can be completely dry. In western North America, vernal pools tend to form in open grasslands, whereas in the east, they often occur in forested landscapes. Further south, vernal pools form in pine savannas and flatwoods . Many amphibian species depend upon vernal pools for spring breeding; these ponds provide
1260-664: The year and generally have a circular shape. As the playa dries during the summer, conspicuous plant zonation develops along the shoreline. Prairie potholes are found in northern North America, such as the Prairie Pothole Region . Glaciers once covered these landscapes, and as a result, shallow depressions were formed in great numbers. These depressions fill with water in the spring. They provide important breeding habitats for many species of waterfowl. Some pools only occur seasonally, while others retain enough water to be present all year. Many kinds of marsh occur along
1296-606: Was designated a Ramsar site on December 4, 1990. In 1976, the brass band of Walden III Middle and High School in Racine, Wisconsin was named the Horicon Horns Band after school co-founder and co-Director Jackson Parker compared the new band's sound to the honking of geese at Horicon Marsh. The band would improve greatly over the years, and went on to become a staple of musical entertainment in Racine, even performing at
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