Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Human Impact on Evolution
Transcript
Human Impact on Evolution I. Global Warming/Climate Change A) Climate change has caused mass extinctions in the past may do so again B) Some species have already gone extinct 1) Golden toad (Bufo periglenes) 2) lived in mountaintop cloud forests 3) habitat destroyed by drought C) If climate changes slow enough many species will have time to evolve 1) brewers yeast adapted to high salinity in …. 25 generations 2) what type of organisms most likely to survive? D) Other species may migrate migration map : http://www.citylab.com/weather/2016/08/how-climatechange-will-impact-animal-migration-in-one-stunning-map/496961/ Tyme Thymus vulgaris Table coral Acropora hyacinthus Pink salmon Oncorhynchus gorbuscha Tawny owl Strix aluco Pitcher plant mosquitoes Wyeomyia smithii Banded snails Cepaea nemoralis Sockeye salmon Oncorhynchus nerka Red squirrels Tamiasciurus hudsonicus Fruit flies Drosophila melanogaster Great Tits Parus major II. Pesticides A. Weeds are becoming resistant to Roundup 1. organophosphate herbicide 2. Europe lists organophosphate & its breakdown products as carcinogens 3. they are on our food crops that get sprayed with roundup 4. current use of roundup is at much higher levels than those at which it was tested. III. Antibiotics A) Bacteria are rapidly developing resistance to antibiotics due to 1) high reproductive rate = rapid mutation 2) Lateral gene transfer IV. Emergent Disease A) new diseases - Evolve to live in new host 1. avian influenza 2. H1N1 – swine flue 3. hantavirus – mice 4. AIDS/HIV – chimpanzee B) Viruses mutate into new virus
