BIO220H1 Study Guide - Final Guide: Estuary, Limiting Factor, Milankovitch Cycles

• School: UTSG
• Department: Biology
• Course: BIO220H1
• Professor: Doug Thomson

Document Summary

Elephant social system: males are generally still reproductive when their daughters mature, since it"s hard to observe elephants (which live really long) they just tracked their behaviour. Found that courtship behaviours are directed away from kin. Migrating wolves: some wolves migrate, some don"t. Northern wolves follow migrating caribou south for winter and back north for summer. Southern wolves prey on deer, moose, elk, etc. Are territorial: different wolves might show genetic differences in neutral markers, spatial divide of alleles seems to indicate genetic differentiation; quantify with fst. Fst = 0 for non differentiation at all: mtdna: fst = 0. 28, y-chromosome: fst = 0. 03, wolves generally stay with their mother"s pack; so mtdna tends to stay in the same pack resulting in higher differentiation. Many europeans have lactase production throughout adulthood. Convergent evolution: different human populations that raise dairy all have higher chances of being lactose tolerant later in life.