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Biology- tutorial 5 .docx

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Western University
Biology 1201A
Richard Gardiner

Tutorial 5 Yarah Khanafer 1. What do biologists believe are the genetic/evolutionary relationships between the Eastern Wolf (Canis lycaon) of Algonquin Provincial Park, the Gray Wolf (Canis lupus), the Red Wolf (Canis rufus) and Coyotes (Canis latrans)? First off, Ecological factors play a big part in differences between the different types of wolves. Such that, the body size is noticeably different among the different regions with an increase in size along a latitudinal gradient, where animals in southern regions of Ontario are smaller than the intermediate-sized animals in Algonquin Provincial Park. Selection; the relationship between the wolves also has a great influence on by prey availability. But grey wolves and coyotes in western North America, outside the historic range of eastern wolves, show no evidence of hybridization. Also, the grey wolves, eastern wolves and western coyotes are hybridized forms of the canis species. While there is no verification of hybridization between grey wolves and coyotes, biologists believe that gene flow between grey wolves and coyotes were the result of the presence of the eastern wolf. 2. What are the differences in habitat and diet of these species? Selection is influenced by differences in prey availability in the different regions. Larger groups such as moose and woodland caribou most common in northern regions, intermediate-sized prey such as white-tailed deer and beaver being common along with moose in Algonquin Provincial Park
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