BIO SCI 94 Lecture Notes - Lecture 22: Fisheries Science, Heliconius, American Bison

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BIO SCI 94 Full Course Notes
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BIO SCI 94 Full Course Notes
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Ecology: the study of how organisms interact w/ each other & their environment. Biogeography: the mapping of species" distribution: abiotic factors, biotic factors. Biomes: a region of distinct abiotic characteristics and dominant vegetation types o o. 9 of the 10 warmest yrs on record have occurred since 2000. Arctic sea ice has shrunk to the lowest level on record. First recognition that climate changes over time & the greenhouse effect: early 1800"s. First hypothesis that human activity produces greenhouse gases & affects climate change: 1890"s. Warming effect of co2 emissions becomes convincing: 1960"s. Scientific opinion begins to favor the view that climate is warming, likely due to human greenhouse emissions: 1970"s. Percentage of scientists that agree that human activity drives current global warming: 1990"s, 97%-98% Study of the behavior of organisms, particularly how they respond to biotic or abiotic stimuli in their environment. Behavioral ecology example: communal roosting in heliconius butterflies.