polytypic


Also found in: Dictionary, Encyclopedia, Wikipedia.

polytypic

(pŏl′ē-tĭp′ĭk) also

polytypical

(-ĭ-kəl)
adj.
Having several variant forms, especially subspecies or varieties.

polytypic

(of a taxon) containing two or more immediately subordinate taxa, for example a species with several subspecies. A polytypic species is also called a Rassenkreiss.
Mentioned in ?
References in periodicals archive ?
The selection of different species representing polytypic canid genera could affect the results of this analysis.
Incongruencia, datos conflictivos e indicios del registro fosil: la filogenia de los canidos
Judge D (2001) The ecology of the polytypic freshwater turtle species, Emydura macquarii macquarii.
Relation between female size and egg production in red-footed tortoise Geochelone (Chelonoidis) carbonaria (spix, 1824) in a comercial farm in Venezuela/Relacion entre el tamano de hembra y la produccion de huevos en el morrocoy sabanero Geochelone (Chelonoidis) carbonaria (spix, 1824) en un zoocriadero comercial de Venezuela/Relacao entre o tamanho da femea e a producao de ovos do jabuti-piranga Geochelone ..
High priority species would still be those confronting a high magnitude, imminent threat, and the most noticeable effect would be a reduction in priority rankings from twelve to eight resulting from the shift from a ternary criterion based on whether the species belongs to a monotypic genus, a polytypic genus, or is merely a subspecies to a binary criterion based on whether the species is ecologically significant or not.
Insect conservation under the Endangered Species Act
chinense) have different wild progenitors, and that the last three species, known as the annuum group, belong to a single polytypic species that covers a wide geographical area.
Caracterizacion por isoenzimas de accesiones de Capsicum pertenecientes a la coleccion amazonica colombiana
Over the past decade or two, thorough studies of the morphological, behavioral, ecological, and genetic variation in species have resulted in the "splitting" of several fairly well-known polytypic (containing populations that have different morphological traits) species into numerous "new" species.
Cryptic biodiversity
serido is a polytypic species composed of a group of closely related species.
Relationships between necrotic cactus availability and population size in a cactophilic Drosophila (Diptera, Drosophilidae) located on a sandstone table hill in Brazil
The polytypic species revisited: morphological differentiation among tiger salamanders (Ambystoma tigrinum) (Amphibia: Caudata).
A CHECKLIST AND DISTRIBUTION MAPS OF THE AMPHIBIANS AND REPTILES OF SOUTH DAKOTA
There is legitimate concern that these hatchery introductions might disrupt fish stocks finely adapted to local habitat characteristics; there is concern to protect the genetic integrity of locally adapted stocks, sometimes recognized as local subspecies of more widely distributed polytypic species (Allendorf and Leary, 1988; Behnke, 1992; Hilborn, 1992).
The origins of New Zealand's Chinook Salmon, Oncorhynchus tshawytscha
Formerly widespread in any rugged and mountainous terrain from desert to open forest in Maghreb (Alados and Shackleton, 1997; Cassinello, 1998), aoudad is a polytypic species.
Is There a Future for the Last Populations of Aoudad (Ammotragus lervia) in Northern Algeria?
A polytypic genus has more than one species; a polytypic species has more than one infraspecific taxon, or is simply variable, containing more than one kind.
Evolution and classification of Cannabis sativa (marijuana, hemp) in relation to human utilization
Polytypic species of spore-feeding Thysanoptera in the genus Allothrips Hood (Phlaeothripidae).
Thysanoptera (Phlaeothripidae) en huertos de aguacate en Nayarit, Mexico
Roughly, 19% of CSF samples (95 of 501) submitted for flow cytometry were shown to have a polytypic B-cell population.
Utility of flow cytometry of cerebrospinal fluid as a screening tool in the diagnosis of central nervous system lymphoma

Medical browser ?
Full browser ?