BIO120H1 Chapter Notes - Chapter 15: Kelp Forest, Species Evenness, Herbivore
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BIO120H1 Full Course Notes
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Biob50: lecture 14- chapter 15 the nature of communities . Ecologists may use subsets of species to define communities: 15. 4a: one common way of subdividing a community is based on taxonomic affinity. Ex, all the bird species w/i a forest community: 15. 4b: another useful subset of a community is a guild, a group of species that use the same resources even though they may be taxonomically distant. Ex, birds, bees, bats: 15. 4c: a functional group is a subet of a community that includes species that function in similar ways but do not necessarily use the same resources. Ex mosquitoes and aphids have same stylet mouthpart: 15. 5a: other subset of communities such as food webs that allow ecologists to organize species based on their trophic or energetic interactions. Can be further organized into trophic levels or groups of species that have similar ways of obtaining energy. The lowest level contains primary producers which are autotrophs such as plants.
