BIOL 111 Lecture Notes - Wolbachia, Coevolution, Semen

• School: McGill University
• Department: Biology (Sci)
• Course: BIOL 111
• Professor: Multiple

Document Summary

Is the diversity of skull morphologies found in dogs comparable to all carnivora: dogs show greater levels of diversity and explore new morphological space o. Groups of actually or potentially interbreeding natural population which are reproductively isolated from other such groups. Hard to apply to things found in different places. The bsc allows for some gene flow between the two species. Problems: difficult for allopatric (different places) populations, not particularly useful for fossils. Mechanisms of speciation: uniform natural selection species in two separate places might be adapting to same environment but mutations may be different. Different and then are incompatible numbers of chromosomes are not compatible with each other: hybridization formation of new species. Two things that are compatible can create hybrid lineage that cannot reproduce with either parent: sexual selection, cytoplasmic incompatibility. Speciation in darwin"s finches is presumable driven by adaptation to different resources (i. e. divergent selection)