BIOL 3130 Lecture Notes - Lecture 17: Fundy National Park, Fitness Landscape, Species Richness
27 Oct 2017
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Natural selection: populations evolve via the effects of limiting factors on. Often completely (cid:498)novel(cid:499) to what was there before fitness (competition, dispersal, predation, abiotic limits including disturbance) Gec fundamentally reconfigures these factors (the fitness or adaptive landscape), but in complicated ways because all can occur concurrently. Case study: sami reindeer herders battle conservationists and miners to cling on to. Artic culture indigenous people(cid:495)s culture (cid:523)reindeer grazing(cid:524) being threatened by artic developments and conservationists to protect reindeer predators. The predators that are protected kill the reindeer. Just 10 convictions canada-wide in 13 years under federal species-at-risk law federal government secured just 10 out of 444 cases relation to the species. Selection thus favors new suites of traits; typically non-native species familiar [in an adaptive sense] to human-influenced environments. Old species left, new native species came because can survive in new environment. Deaths exceed births, but births still occur (ex.
