Sex ratio and morphological polymorphism in an isolated, endemic Teladorsagia circumcincta population
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چکیده
منابع مشابه
Sex ratio and morphological polymorphism in an isolated, endemic Teladorsagia circumcincta population.
Teladorsagia circumcincta is a polygamous nematode that exhibits morphological polymorphism. Sex ratio is typically female biased and the male nematodes occur in association with the genetically similar, minor morphotypes Teladorsagia davtiani and Teladorsagia trifurcata. In experimental infections, sex ratio (proportion male) and the proportion of minor male morphs observed have been shown to ...
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Authors’ addresses: 1 Deviot Institute, Deviot, Tasmania 7275, Australia. 2 School of Human Life Sciences, University of Tasmania, Locked Bag 1320, Launceston, Tasmania 7250, Australia. 3 University Kuala Lumpur, Royal College of Medicine Perak, 3 Greentown Road, 30450 Ipoh, Perak, Malaysia. 4 Institute of Food, Nutrition and Human Health, Massey University, Private Bag 11222, Palmerston North,...
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Understanding the mechanisms underlying population declines is critical for preventing the extinction of endangered populations. Positive feedbacks can hasten the process of collapse and create an 'extinction vortex,' particularly in small, isolated populations. We provide a case study of a male-biased sex ratio creating the conditions for extinction in a natural population of tuatara (Sphenodo...
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ژورنال
عنوان ژورنال: Journal of Helminthology
سال: 2009
ISSN: 0022-149X,1475-2697
DOI: 10.1017/s0022149x09990551