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BIOS1301 Summary Study Notes
BIOS1301 - Ecology, Sustainability and Environmental Science
2 Found helpful • 10 Pages • Topic Notes • Year: Pre-2021
BIOS1301 summary study noteds Introduction to ecology and sustainability Ecology and environment Environment Abiotic (non-living) – water, light, temperature, topography. Biotic (living) – food availability, predators, competitors, mates. Level of ecological organization • Organism – living organisms, fundamental units of populations and communities. • Populations – group of individuals of a species living in one place at a time (one species). • Communities – assemblages of species populations occurring together in space and time (multiple species). • Landscapes – spatially connected parts of the environment. Population dynamics • Gains – birth, immigration • Losses – death, emigration Biodiversity • Genetic variability • Species richness • Functional diversity • Gradient diversity • Community diversity • Landscape diversity Food webs and energy flow • Species in a community are divided into different trophic levels based on the main source of nutrition.
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