BIOL208 Lecture Notes - Lecture 10: Four-Dimensional Space, Ecological Niche
20 Sep 2016
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Document Summary
Narrow range for where organisms can survive and reproduce. The amount of energy available to each organism is limited. When energy is allocated to one function, it reduces the energy available for other functions. 4 things organisms allocate their energy to: Growth energy organism needs to grow (taller, stronger) Activity moving around you do, chased, looking for food, defending yourself. Reproduction producing gametes, finding mate, mating process itself, and any energy it takes to raise young. Endotherms vs ectotherms different energy budgets due to temperature regulation. An n-dimensional hypervolume (one factor = one dimension, two factors = two dimensions, three factors = three dimensions) The niche n is the number of environmental factors important to survival and reproduction. The niche is not a physical location (location=habitat) conceptual idea of all of the things an organism needs to live. Physical conditions under which a species might live in the absence of interactions with other species (just abiotic or environmental factors)
