Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,914,158,756 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

polytypic

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
polytypic [¦päl·i¦tip·ik]
(systematics)
A taxon that contains two or more taxa in the immediately subordinate category.


Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Mentioned in?  References in periodicals archive?   Encyclopedia browser?   Full browser?
No references found
 
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.
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.
However, they also found rare PAS-negative amphophilic intranuclear structures in some of the monotypic and polytypic infiltrates.
 
 
 
Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.