BIO 111 Chapter Notes - Chapter 44: Primary Production, Energy Flux, Species Evenness
Document Summary
44. 1 communities contain species that colonize and persist. Community the group of species that occur together in a geographic area. Species composition the species which a community contains. Community structure composed of species composition, the number of species, and how abundant each species is. 44. 2 communities change over space and time. Turnover repeated patterns of spatial and temporal change in species composition. Habitat structure the horizontal and vertical distribution of objects in. 44. 4 diversity patterns provide clues to what determines diversity. Species richness varies with the size and isolation of oceanic islands: species richness is greater on larger islands than on smaller islands, species richness is greater on islands near a mainland than on more distant islands. Island biogeography explains the patterns of species richness found not only o(cid:374) o(cid:272)ea(cid:374)i(cid:272) isla(cid:374)ds, (cid:271)ut also o(cid:374) (cid:862)isla(cid:374)ds(cid:863) of o(cid:374)e habitat type surrounded by a (cid:862)sea(cid:863) of a differe(cid:374)t ha(cid:271)itat t(cid:455)pe. 44. 5 community ecology suggests strategies for conserving community function.
