Mutualism and Commensalism

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Positive interactions occur when neither species is harmed and the benefits of the interaction are greater than the costs for at least one species. Facilitation is a synonym for positive interactions. Mutualism: Mutually beneficial interaction between individuals of two species (+/+). Commensalism: Individuals of one species benefit, while individuals of the other species do not…

Community Ecology: Predation, Mimicry, Competition

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Community: A group of species that occupy a given area, interacting either directly or indirectly Predation Consumption of one organism by another organism Predator-prey population oscillations Predators and prey are agents of natural selection for each other defense or attack strategies camouflage aposematic colouration Mimicry Batesian: One species is harmful the other is non-harmful Non-harmful…