Results for “taxonomic”

taxonomic

Of or relating to taxonomy.

Used in 195 profiles

classification

In taxonomy, the arrangement of organisms into taxonomic groups according to their degree of evolutionary relatedness.

Used in 50 profiles

revision

In taxonomy, a paper or study concerned with changes, amendments or corrections to a particular taxonomic group.

Used in 113 profiles

species

Taxonomic rank into which a genus is divided, but otherwise difficult to delineate precisely with a single definition satisfying all eventualities still lacking to date. There exist a number of concepts of which the most popular in vertebrate taxonomy include the biological species concept and phylogenetic species concept.

Used in 1,790 profiles

adaptive radiation

Speciation of a taxonomic group into several forms, each specialised to fill a previously vacant ecological niche, as exemplified by Rift Lake cichlids, for example.

Used in 60 profiles

aff.

Abbreviation of the word 'affinis', meaning related but not identical to. Used in the fields of systematics and taxonomy when referring to undescribed specimens or populations that resemble, but are clearly different to, a described species.

cf.

Abbreviation of the word 'confer', meaning 'compare with'. Used in the fields of systematics and taxonomy to denote specimens or populations that resemble a described taxon but differ in some respects and thus may or may not represent a distinct species.

cladistics

Taxonomical method used to classify species of organisms into clades, each of which contains an ancestor organism and all its descendants, based on synapomorphies (shared derived characters). Cladistic classifications are usually presented in the form of a cladogram.

cotype

Term formerly used in zoological taxonomy and equivalent to the modern terms syntype and paratype but no longer valid according to the ICZN code.

etymology

Branch of linguistics concerned with the origin and development of words. Used in taxonomy when referring to the basis and meaning of a scientific name.

Used in 27 profiles

extinct

Of a species or other taxonomic grouping, having no living members; no longer in existence.

Used in 22 profiles

family

Taxonomic rank below order and above genus. Contains one or more genera.

Used in 686 profiles

genetics

Branch of biology concerned with the study of heredity and variation of organisms; the genetic constitution of a single organism, species, or other taxonomic group.

Used in 4 profiles

genus

Taxonomic group into which a family is divided and which contains one or more species characterised by a shared trait or traits. The generic name is used, either alone or followed by one or two specific epithets, to form a binomen or trinomen.

Used in 1,386 profiles

hierarchy

Series of ordered or groupings or rankings within a defined system. Taxonomy is a form of hierarchy as are the ranked social groupings typical of certain fish species. The latter form of social hierarchy is also known as a pecking order.

Used in 85 profiles

homonym

Two or more names of identical spelling, or differing only in suffix, that have been applied to different members of the same taxonomic rank and of which only one can be valid at any given time.

Used in 2 profiles

incertae sedis

In zoological nomenclature, of uncertain taxonomic position.

Used in 110 profiles

kingdom

Taxonomic rank in the hierarchical classification of living organisms and natural objects. Either the highest rank or rank below domain, depending on the system being followed.

Used in 3 profiles

monophyletic

Used in reference to a taxonomic group containing all descendants of a single, often hypothetical, common ancestor, often characterised by one or more synapomorphies. A clade is a monophyletic group.

Used in 330 profiles

monotypic

Used in reference to a taxonomic group containing only a single member, e.g., a monotypic genus or family.

Used in 123 profiles