1973.Genetic varia- tion in the genus Bufo. I. An extreme degree of trans- ferrin and albumin polymorphism in a population of the American toad, Bufo arnericanus. Biochem. Genet. 8:329-340.Guttman, S. I. and Wilson, K. G. 1973 . Genetic variation in the genus Bufo I. An extreme...
(1934)for theAmerican oyster, reports an average ratio of males to females in the first breeding season of 11:1. The sex ratio tends to even out with age.Galtsoff (1961)induced spawning in a group of 4-year old American oysters every summer for 5 years. The sex ratio in this group ...
We used a suite of population genetic analyses to trace the origins of various mutations that cause Recessive Dystrophic Epidermolysis Bullosa (RDEB). We found likely American and European origins, and hint that Sephardic Jews may have carried the mutation to the New World. Another paper we are ...
Parasitic nematodes are highly diverse and common, infecting virtually all animal species, and the importance of their roles in natural ecosystems is increasingly becoming apparent. How genes flow within and among populations of these parasites - their p
aThe next step will be returning to the 38000 hectare forest to try to find out how many grizzly langurs there are ,according to the team of local and international scientists, who published their findings in the American Journal of Primatology on Friday. 下一个步骤回到38000公顷森林设法发现...
Landscape genetics of a sub-alpine toad: climate change predicted to induce upward range shifts via asymmetrical migration corridors Article08 September 2022 Introduction Anthropogenically driven habitat modification is recognized as the single greatest threat to global biodiversity1, particularly in tropical ...
History of Korea Animal Migration Biogeography Human Migration Animal Geography Population Genetics Background Present day speciesrichness anddistributionsare believed to have been strongly influenced by the Last Glacial Maxima (LGM), patterns well documented throughout diverse European and North American stud...
Mallards, the most popular duck species for hunters in the North American continent’s four different flyways, showed a breeding population number of 9.42 million breeders in 2019, up 2 percent from the 2018 figure of 9.26 million breeders. What’s more, this year’s greenhead breeding duck ...
Comparable results have been found in North American species, notably eastern massasauga rattlesnakes (Sistrurus catenatus catenatus; Gibbs et al., 1997), black rat snakes (Elaphe Figure 2 Relationship between pairwise FST values and (a) the straight-line distance (rS ¼ 0.511, P ¼ 0.003)...