BIO 2129 Chapter Notes -Damselfish, Intraspecific Competition, Interspecific Competition
Document Summary
Interference competition: direst aggressive interactions between individuals (ex. Damselfish): individual damselfish maintain possession of their territories through ongoing competition with other damselfish. There is a limited supply of suitable space for damselfish territories. Intraspecific competition: competition between members of their own species. Effects of fitness of competitors isn"t the same for all. Competitive effects can be asymmetric (winners & losers) Plants: acquire resources before others (while competition prevents others access to resources) Competitive interactions can affect fitness, but abiotic stress, predation, and parasites strongly limit fitness, population dynamics, and community structure. Growth slows as n increases and intraspecific competition is shows as a ratio with k. Assumption: resources decline as pop increases due to intraspecific competition. Interspecific competition includes: - 12n2 at n1 and 21n2 at n2. 12: effect of individual of species 2 on rate of species 1 and vice versa.
