BIOLOGY 1M03 Lecture Notes - Lecture 33: Species Richness, Aposematism, Insular Biogeography
3 Apr 2017
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Density dependence: predation, disease and parasitism. Anti-predator strategies: selfish herd, crypsis, mimicry. Anti-predator strategies: group living more eyes/dilution effect/mobbing, crypsis, aposematic colouration, mimicry batesian, mimicry mullerian. Clements interactive hypothesis the community is an assemblage of stable and integrated species, locked into association by mandatory interactions: clements argues that co-occurrence of tree species in eastern deciduous forest support his interactive hypotheses . Santa catalina mountain trees support the individualistic hypothesis. Some members of communities are bound in various types of interactions (i. e. clements. Many members of communities share habitats or ecosystems in common because of limits of tolerance or niche dimensions (i. e. gleason"s individualistic hypothesis) Ecological succession: non-seasonal and directional pattern of colonization and extinction on a site by different species. Primary succession: begins with a virtually lifeless environment. Pioneer stage not competitive generally change conditions, facilitating subsequent stages. Facilitation when one species alters the environment in a way that benefits other species allowing them to enter the community.
