ADULT MOVEMENTS AND POPULATION STRUCTURE IN EUPHYDRYAS EDITHA
نویسندگان
چکیده
منابع مشابه
The endangered quino checkerspot butterfly, Euphydryas editha quino (Lepidoptera: Nymphalidae)
With the listing of the quino checkerspot butterfly, Euphydryas editha quino, as a federally endangered species, research into its ecology and conservation is necessary to allow for recovery planning and management. We review systematics, distribution, natural history, and conservation prospects, with reference to pertinent literature about other E. editha subspecies. Additional information is ...
متن کاملA direct assessment of the role of genetic drift in determining allele frequency variation in populations of Euphydryas editha.
Estimates of allele frequencies at six polymorphic loci were collected over eight generations in two populations of Euphydryas editha. We have estimated, in addition, the effective population size for each generation for both populations with results from mark-recapture and other field data. The variation in allele frequencies generated by random genetic drift was then studied using computer si...
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We tested empirically whether microclimate and relative timing of oviposition affected prediapause larval survival and development rates in the federally threatened Bay checkerspot butterfly, Euphydryas editha bayensis (Nymphalidae). Most mortality in Bay checkerspot butterflies occurs among prediapause larvae. Because phenology of the butterfly’s larval hostplant, Plantago erecta, has been tho...
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Alterations in histomorphological features of the pelvic ureter such as muscle fiber orientation have been implicated in the etiology of vesicoureteric reflux. Consequently, anatomical sex differences in the histomorphology of the pelvic ureter may explain the female predisposition to this disease. Reports of these differences are, however, scarce. Twelve adult pelvic ureters (6 male and 6 fema...
متن کاملPopulation Movements and Contacts in Language Evolution
Publications such as Thomason & Kaufman (1988) and Thomason (2001, 2002) have perpetuated, without fundamental support, the distinction between internallyand externally-motivated language changes. They suggest that the two kinds of changes are different in nature and that those induced by language contact have not contributed to language speciation in the same way as those owing (principally) t...
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ژورنال
عنوان ژورنال: Evolution
سال: 1974
ISSN: 0014-3820,1558-5646
DOI: 10.1111/j.1558-5646.1974.tb00762.x