Misplaced Pages

Viscaceae

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.

Taxonomy is a practice and science concerned with classification or categorization. Typically, there are two parts to it: the development of an underlying scheme of classes (a taxonomy) and the allocation of things to the classes ( classification ).

#552447

61-460: Viscaceae is a taxonomic family name of flowering plants . In this circumscription, the family includes the several genera of mistletoes . This family name is currently being studied and under review as in past decades, several systems of plant taxonomy recognized this family, notably the 1981 Cronquist system . However, the APG II system of 2003 does not recognize the family, treating it as

122-504: A controlled vocabulary of contributor roles. Known as CRediT ( Contributor Roles Taxonomy ) , this is an example of a flat, non-hierarchical taxonomy; however, it does include an optional, broad classification of the degree of contribution: lead , equal or supporting . Amy Brand and co-authors summarise their intended outcome as: Identifying specific contributions to published research will lead to appropriate credit, fewer author disputes, and fewer disincentives to collaboration and

183-614: A " universal language " was frequently examined in the 17th century, also notably by the English philosopher John Wilkins in his work An Essay towards a Real Character and a Philosophical Language (1668), from which the classification scheme in Roget 's Thesaurus ultimately derives. Taxonomy in biology encompasses the description, identification, nomenclature, and classification of organisms. Uses of taxonomy include: Uses of taxonomy in business and economics include: Vegas et al. make

244-616: A 1997 article in JAMA , the Journal of the American Medical Association for a radical conceptual and systematic change, to reflect the realities of multiple authorship and to buttress accountability. We propose dropping the outmoded notion of author in favor of the more useful and realistic one of contributor. In 2012, several major academic and scientific publishing bodies mounted Project CRediT to develop

305-400: A certain type (for example, John is a bachelor ), while universally quantified conditionals express the notion that a type is a subtype of another type (for example, " A dog is a mammal" , which means the same as " All dogs are mammals" ). The "has-a" relationship is quite different: an elephant has a trunk; a trunk is a part, not a subtype of elephant. The study of part-whole relationships

366-444: A compelling case to advance the knowledge in the field of software engineering through the use of taxonomies. Similarly, Ore et al. provide a systematic methodology to approach taxonomy building in software engineering related topics. Several taxonomies have been proposed in software testing research to classify techniques, tools, concepts and artifacts. The following are some example taxonomies: Engström et al. suggest and evaluate

427-448: A larger variety of relation types. Mathematically, a hierarchical taxonomy is a tree structure of classifications for a given set of objects. It is also named containment hierarchy . At the top of this structure is a single classification, the root node, that applies to all objects. Nodes below this root are more specific classifications that apply to subsets of the total set of classified objects. The progress of reasoning proceeds from

488-761: A man-made vernacular naming system for local taxa. Though biologically revolutionary at the time, these taxa were also linguistically revolutionary by defining plants in groups larger than themselves. Theophrastus was influenced by preceding local folk taxonomy in his naming system, but also added biological features to the names of many plants such as phylla(leaves), karpoi (fruits), and poai (seasonal herbs). Terms like phylla are still used in Linnaean and modern naming systems for trees today. According to some authors, folk taxonomy includes several absolute levels that have been compared (very broadly) with Linnaean categories. Typically, five such ranks are recognized. The first one,

549-434: A method based on dichotomy, which was rejected by Aristotle and replaced by the method of definitions based on genus, species, and specific difference. The method of facet analysis (cf., faceted classification ) is primarily based on logical division. This approach tends to classify according to "essential" characteristics, a widely discussed and criticized concept (cf., essentialism ). These methods may overall be related to

610-487: A naming system similar to Aristotle's classification of animals. The books divide all plants into specific taxa that were used as early folk taxonomies to describe everyday plants in Greece and explain the anatomy of the following groups of taxa: Trees, Wild Trees, Shrubs, Pot-Herbs, Cereals, Legumes, and Herbals (medicinally used plants) as well as the unknown subject of a 10th Volume. These taxa were used in everyday life as

671-531: A one to one ratio of plants to their Linnaeus counterpart. The use of each group of taxa (species: words) from 2:1 to 1:1 to 1: many, define the cultural significance of each species and the level of specificity they use is their form of a culturally influenced folk taxonomy. Native Tzeltal speakers in the Mayan region of Mexico were found to have developed such divisions towards the crops they most frequently use in everyday life. The cultural significance determined

SECTION 10

#1732798666553

732-490: A single child with multi-parents, for example, "Car" might appear with both parents "Vehicle" and "Steel Mechanisms"; to some however, this merely means that 'car' is a part of several different taxonomies. A taxonomy might also simply be organization of kinds of things into groups, or an alphabetical list; here, however, the term vocabulary is more appropriate. In current usage within knowledge management , taxonomies are considered narrower than ontologies since ontologies apply

793-642: A synonym of Santalaceae . This did not end the taxonomic debate among botanists and there are many that still think Viscaceae should be an accepted family name. According to the APG IV system Der and Nickrent (2008) found seven well supported clades in Santalaceae, but relationships between these clades are still poorly understood. The traditional and cultural uses of species within the Viscaceae merit further attention. Clades or genera treated as belonging to

854-600: A taxonomy is to help users more easily find what they are searching for. This may be effected in ways that include a library classification system and a search engine taxonomy . The word was coined in 1813 by the Swiss botanist A. P. de Candolle and is irregularly compounded from the Greek τάξις , taxis 'order' and νόμος , nomos 'law', connected by the French form -o- ; the regular form would be taxinomy , as used in

915-720: A very important stepping stone for all folk taxonomies. Specific and varietal are the final two levels. The categories get far more distinct and at least two words are necessary to describe them. However, the existence of these folk taxonomic ranks (or levels) has been questioned by a number of authors from different fields for more than 20 years. The facts that folk taxonomies are not as neatly hierarchical as previously thought, with taxa of intermediate levels often missing, that no folk taxonomic ranks have been recognized in Aristotle's zoological classification, and that antique Roman folk taxonomy requires at least eight levels (rather than

976-408: Is mereology . Taxonomies are often represented as is-a hierarchies where each level is more specific than the level above it (in mathematical language is "a subset of" the level above). For example, a basic biology taxonomy would have concepts such as mammal , which is a subset of animal , and dogs and cats , which are subsets of mammal . This kind of taxonomy is called an is-a model because

1037-433: Is a folk taxonomy. Linnaean Taxonomy , which is also more properly called rank-based nomenclature, is a scientifically ranked based nomenclatural system for the classification of living organisms. Developed by Carl Linnaeus , this nomenclatural system allocates taxa (groups of biological organisms recognised by systematists) into categories (absolute ranks). Rank-based nomenclature developed long after Folk Taxonomy and

1098-416: Is an approach based solely on observable, measurable similarities and differences of the things to be classified. Classification is based on overall similarity: The elements that are most alike in most attributes are classified together. But it is based on statistics, and therefore does not fulfill the criteria of logical division (e.g. to produce classes, that are mutually exclusive and jointly coextensive with

1159-511: Is important to notice that empiricism is not the same as empirical study, but a certain ideal of doing empirical studies. With the exception of the logical approaches they all are based on empirical studies, but are basing their studies on different philosophical principles). (3) Historical and hermeneutical approaches including Ereshefsky's "historical classification" and (4) Pragmatic, functionalist and teleological approaches (not covered by Ereshefsky). In addition there are combined approaches (e.g.,

1220-399: Is not assigned to the concept of France (whatever that might be).” Smith's alternative to concepts as units is based on a realist orientation, when scientists make successful claims about the types of entities that exist in reality, they are referring to objectively existing entities which realist philosophers call universals or natural kinds. Smith's main argument - with which many followers of

1281-399: Is of little use, since we seldom have anything to affirm in common of the plants which have a given number of stamens and pistils." "The ends of scientific classification are best answered, when the objects are formed into groups respecting which a greater number of general propositions can be made, and those propositions more important, than could be made respecting any other groups into which

SECTION 20

#1732798666553

1342-459: Is often anywhere between three and five. An example of how these levels of specificity work in day to day life can easily be seen when talking about a car. On the broadest level, it is a vehicle. On the next, it's a car. Sometimes it's even more distinct and it's called a Toyota or a Toyota Highlander . All these words were used to talk about the same thing, the wording just became more and more specific as we went through folk taxonomy levels. In

1403-910: Is referred to is that in biological classification the anatomical traits of organisms is one kind of classification, the classification in relation to the evolution of species is another (in the section below, we expand these two fundamental sorts of classification to four). Hull adds that in biological classification, evolution supplies the theoretical orientation. Ereshefsky (2000) presented and discussed three general philosophical schools of classification: "essentialism, cluster analysis, and historical classification. Essentialism sorts entities according to causal relations rather than their intrinsic qualitative features." These three categories may, however, be considered parts of broader philosophies. Four main approaches to classification may be distinguished: (1) logical and rationalist approaches including "essentialism"; (2) empiricist approaches including cluster analysis (It

1464-412: Is the classification of items which emphasis the goals, purposes, consequences, interests, values and politics of classification. It is, for example, classifying animals into wild animals, pests, domesticated animals and pets. Also kitchenware (tools, utensils, appliances, dishes, and cookware used in food preparation, or the serving of food) is an example of a classification which is not based on any of

1525-412: Is the systematic classification involved in the design and utilization of taxonomic schemes such as the biological classification of animals and plants by genus and species. Two of the predominant types of relationships in knowledge-representation systems are predication and the universally quantified conditional . Predication relationships express the notion that an individual entity is an example of

1586-668: Is the way people traditionally describe and organize the world around them, typically making generous use of form taxa such as " shrubs ", " bugs ", " ducks ", " fish ", " algae ", " vegetables ", or of economic criteria such as " game animals ", " pack animals ", " weeds " and other like terms. Folk taxonomies are generated from social knowledge and are used in everyday speech. They are distinguished from scientific taxonomies that claim to be disembedded from social relations and thus more objective and universal . Folk taxonomies exist to allow popular identification of classes of objects, and apply to all subsections of human activity. All parts of

1647-451: The 18th century, a botanist by the name of Carl Linnaeus proposed what we now know as human taxonomy , the idea that like within botany, human beings could too be classified taxonomically. Linnaeus distinguished groups of human beings upon the basis of their apparent race in addition to several outliers such as wild children ( Homo sapiens ferus ). However, as anthropology has developed Linnaeus' classifications have proven incompatible with

1708-505: The German mathematician and philosopher Gottfried Leibniz , following the work of the thirteenth-century Majorcan philosopher Ramon Llull on his Ars generalis ultima , a system for procedurally generating concepts by combining a fixed set of ideas, sought to develop an alphabet of human thought . Leibniz intended his characteristica universalis to be an "algebra" capable of expressing all conceptual thought. The concept of creating such

1769-593: The Greek reborrowing ταξινομία . Misplaced Pages categories form a taxonomy, which can be extracted by automatic means. As of 2009 , it has been shown that a manually-constructed taxonomy, such as that of computational lexicons like WordNet , can be used to improve and restructure the Misplaced Pages category taxonomy. In a broader sense, taxonomy also applies to relationship schemes other than parent-child hierarchies, such as network structures . Taxonomies may then include

1830-799: The above-mentioned three methods, but clearly on pragmatic or functional criteria. Bonaccorsi, et al. (2019) is about the general theory of functional classification and applications of this approach for patent classification. Although the examples may suggest that pragmatic classifications are primitive compared to established scientific classifications, it must be considered in relation to the pragmatic and critical theory of knowledge, which consider all knowledge as influences by interests. Ridley (1986) wrote: "teleological classification. Classification of groups by their shared purposes, or functions, in life - where purpose can be identified with adaptation. An imperfectly worked-out, occasionally suggested, theoretically possible principle of classification that differs from

1891-413: The best-known and most influential studies of folk taxonomies is Émile Durkheim 's The Elementary Forms of Religious Life . Scientists generally recognize that folk taxonomies conflict at times with Linnaean taxonomy or current interpretations of evolutionary relationships, and can tend to refer to generalized rather than quantitatively informative traits in an organism. Some anthropologists say race

Viscaceae - Misplaced Pages Continue

1952-462: The class they divide). Some people will argue that this is not classification/taxonomy at all, but such an argument must consider the definitions of classification (see above). These methods may overall be related to the empiricist theory of knowledge. Genealogical classification is classification of items according to their common heritage. This must also be done on the basis of some empirical characteristics, but these characteristics are developed by

2013-422: The close relationship between classification theory and concept theory. A main opponent of concepts as units is Barry Smith. Arp, Smith and Spear (2015) discuss ontologies and criticize the conceptualist understanding. The book writes (7): “The code assigned to France, for example, is ISO 3166 – 2:FR and the code is assigned to France itself — to the country that is otherwise referred to as Frankreich or Ranska. It

2074-436: The concept theory agree - seems to be that classes cannot be determined by introspective methods, but must be based on scientific and scholarly research. Whether units are called concepts or universals, the problem is to decide when a thing (say a "blackbird") should be considered a natural class. In the case of blackbirds, for example, recent DNA analysis have reconsidered the concept (or universal) "blackbird" and found that what

2135-445: The criteria for ordering these basic units into a classification". There is a widespread opinion in knowledge organization and related fields that such classes corresponds to concepts. We can, for example, classify "waterfowls" into the classes "ducks", "geese", and "swans"; we can also say, however, that the concept “waterfowl” is a generic broader term in relation to the concepts "ducks", "geese", and "swans". This example demonstrates

2196-548: The currently debated family name Viscaceae include: Taxonomy (general) Originally, taxonomy referred only to the classification of organisms on the basis of shared characteristics. Today it also has a more general sense. It may refer to the classification of things or concepts, as well as to the principles underlying such work. Thus a taxonomy can be used to organize species, documents, videos or anything else. A taxonomy organizes taxonomic units known as "taxa" (singular "taxon")." Many are hierarchies . One function of

2257-473: The designated subject as being importantly similar to other entities bearing the same designation; that is, we classify them together. Similarly the use of predicative phrases classifies actions or properties as being of a particular kind. We call this conceptual classification, since it refers to the classification involved in conceptualizing our experiences and surroundings" About systematic classification Suppe wrote: "A second, narrower sense of classification

2318-480: The discussion of their relation to the scientific taxonomy can be found in Scott Atran 's Cognitive Foundations of Natural History. Folk taxonomies of organisms have been found in large part to agree with scientific classification, at least for the larger and more obvious species, which means that it is not the case that folk taxonomies are based purely on utilitarian characteristics. In the seventeenth century

2379-427: The general to the more specific. By contrast, in the context of legal terminology, an open-ended contextual taxonomy is employed—a taxonomy holding only with respect to a specific context. In scenarios taken from the legal domain, a formal account of the open-texture of legal terms is modeled, which suggests varying notions of the "core" and "penumbra" of the meanings of a concept. The progress of reasoning proceeds from

2440-555: The historicist theory of knowledge. One of the main schools of historical classification is cladistics , which is today dominant in biological taxonomy, but also applied to other domains. The historical and hermeneutical approaches is not restricted to the development of the object of classification (e.g., animal species) but is also concerned with the subject of classification (the classifiers) and their embeddedness in scientific traditions and other human cultures. Pragmatic classification (and functional and teleological classification)

2501-490: The iconic five), also raise doubts about the objective reality of folk taxonomic ranks. The number of depth levels and systems for classification can vary for nonbiological folk taxonomy. The first time a folk taxonomy hierarchy was published which did not feature plants or animals was in 1961 by Charles Frake in disease diagnosis of Mindanao in the Philippines. Frake's classification had four levels. The number of levels

Viscaceae - Misplaced Pages Continue

2562-449: The ideal, he recognized that his own system (at least partly) represented an artificial classification. John Stuart Mill explained the artificial nature of the Linnaean classification and suggested the following definition of a natural classification: "The Linnæan arrangement answers the purpose of making us think together of all those kinds of plants, which possess the same number of stamens and pistils; but to think of them in that manner

2623-621: The influence of the cladistic paradigm - and have demanded new classifications. Smith's example of France demands an explanation. First, France is not a general concept, but an individual concept. Next, the legal definition of France is determined by the conventions that France has made with other countries. It is still a concept, however, as Leclercq (1978) demonstrates with the corresponding concept Europe . Hull (1998) continued: "Two fundamentally different sorts of classification are those that reflect structural organization and those that are systematically related to historical development." What

2684-765: The larger. Such a hyponym, in turn, may have further subcategories for which it is a hypernym. In the simple biology example, dog is a hypernym with respect to its subcategory collie , which in turn is a hypernym with respect to Fido which is one of its hyponyms. Typically, however, hypernym is used to refer to subcategories rather than single individuals. Researchers reported that large populations consistently develop highly similar category systems. This may be relevant to lexical aspects of large communication networks and cultures such as folksonomies and language or human communication, and sense-making in general. Hull (1998) suggested "The fundamental elements of any classification are its theoretical commitments, basic units and

2745-505: The more scientific classifications developed by Aristotle and Theophrastus . This method of hierarchically ranking taxa was developed before the theory of evolution, and it can be applied to everyday phenomena. Some cultures use folk taxonomies more or less specific, or in direct correlation with modern Linnaean Taxonomy in reference to biological taxa. In areas that the direct biological distinction of plants are more important, such as crops used for food or firewood, some cultures will have

2806-643: The names of five plants of great societal importance in Mesoamerica are more than 7000 years old. The 9/10 remaining volumes of Historia Plantarum , written by Theophrastus, early philosopher, botanist , and student of Aristotle, describe an initial vernacular naming system of plants. This taxonomy has been developed, but its principal of division was widely accepted until biological theories of evolution evolved.  The books list around 500 species of plant native and present in ancient Greece. Theophrastus used sources such as Diocles for herbal information and

2867-488: The number of words that the Tzeltal group had for each crop, such as the leguminose legume (Phaseolus vulgaris L . at its most specific Linnaean taxa) was differentiated in Tzeltal into five specific words. This legume is a large farm crop that is extremely present in day to day life in this region. Folk taxonomy precedes the Linnaean taxonomy chronologically. For instance, glottochronological evidence suggests that

2928-426: The rationalist theory of knowledge. "Empiricism alone is not enough: a healthy advance in taxonomy depends on a sound theoretical foundation" Phenetics or numerical taxonomy is by contrast bottom-up classification, where the starting point is a set of items or individuals, which are classified by putting those with shared characteristics as members of a narrow class and proceeding upward. Numerical taxonomy

2989-403: The reality of human differentiation stemming from a cultural basis. Humans tend to be distinguishable, and distinguish themselves, according to their cultural norms, principally language, dress, aesthetics, and social attitudes. Folk taxonomy in the sense of linguistic culture, and thus injustice, is a divided subject built upon a variety of distinct theories and methods of analysis. Still, there

3050-431: The same things could be distributed." "A classification thus formed is properly scientific or philosophical, and is commonly called a Natural, in contradistinction to a Technical or Artificial, classification or arrangement." Ridley (1986) provided the following definitions: Folk taxonomy A folk taxonomy is a vernacular naming system , as distinct from scientific taxonomy . Folk biological classification

3111-510: The sharing of data and code. CRediT comprises 14 specific contributor roles using the following defined terms: The taxonomy is an open standard conformiing to the OpenStand principles, and is published under a Creative Commons licence. Websites with a well designed taxonomy or hierarchy are easily understood by users, due to the possibility of users developing a mental model of the site structure. Guidelines for writing taxonomy for

SECTION 50

#1732798666553

3172-427: The so-called evolutionary taxonomy ", which mixes historical and empiricist principles). Logical division (top-down classification or downward classification) is an approach that divides a class into subclasses and then divide subclasses into their subclasses, and so on, which finally forms a tree of classes. The root of the tree is the original class, and the leaves of the tree are the final classes. Plato advocated

3233-413: The specific objects are considered as instances of a concept. For example, Fido is-an instance of the concept dog and Fluffy is-a cat . In linguistics , is-a relations are called hyponymy . When one word describes a category, but another describe some subset of that category, the larger term is called a hypernym with respect to the smaller, and the smaller is called a "hyponym" with respect to

3294-430: The specific to the more general. Anthropologists have observed that taxonomies are generally embedded in local cultural and social systems, and serve various social functions. Perhaps the most well-known and influential study of folk taxonomies is Émile Durkheim 's The Elementary Forms of Religious Life . A more recent treatment of folk taxonomies (including the results of several decades of empirical research) and

3355-448: The theory of evolution. Charles Darwin's main contribution to classification theory of not just his claim "... all true classification is genealogical ..." but that he provided operational guidance for classification. Genealogical classification is not restricted to biology, but is also much used in, for example, classification of languages, and may be considered a general approach to classification." These methods may overall be related to

3416-443: The two main such principles, phenetic and phylogenetic classification ". Natural classification is a concept closely related to the concept natural kind . Carl Linnaeus is often recognized as the first scholar to clearly have differentiated "artificial" and "natural" classifications A natural classification is one, using Plato's metaphor, that is “carving nature at its joints” Although Linnaeus considered natural classification

3477-413: The unique beginner, is extremely broad and has categories like plant or animal. Next is the life form level; life form taxa typically have names composed of a single word. The generic level is known to be the most important level of biological folk taxonomy. It's the most widely used and the first level to be learned by children. Classifications like maple tree, blue jay or tulip are made at this level. It's

3538-508: The use of a taxonomy to bridge the communication between researchers and practitioners engaged in the area of software testing. They have also developed a web-based tool to facilitate and encourage the use of the taxonomy. The tool and its source code are available for public use. Uses of taxonomy in education include: Uses of taxonomy in safety include: Citing inadequacies with current practices in listing authors of papers in medical research journals, Drummond Rennie and co-authors called in

3599-405: The web include: Frederick Suppe distinguished two senses of classification: a broad meaning, which he called "conceptual classification" and a narrow meaning, which he called "systematic classification". About conceptual classification Suppe wrote: "Classification is intrinsic to the use of language, hence to most if not all communication. Whenever we use nominative phrases we are classifying

3660-585: The world have their own systems of naming local plants and animals. These naming systems are a vital aid to survival and include information such as the fruiting patterns of trees and the habits of large mammals. These localised naming systems are folk taxonomies. Theophrastus recorded evidence of a Greek folk taxonomy for plants, but later formalized botanical taxonomies were laid out in the 18th century by Carl Linnaeus . Anthropologists have observed that taxonomies are generally embedded in local cultural and social systems, and serve various social functions. One of

3721-498: Was formerly considered one species (with subspecies) are in reality many different species, which just have chosen similar characteristics to adopt to their ecological niches. An important argument for considering concepts the basis of classification is that concepts are subject to change and that they changes when scientific revolutions occur. Our concepts of many birds, for example, have changed with recent development in DNA analysis and

SECTION 60

#1732798666553
#552447