BIOL 103 Chapter Notes -Camouflage, Monarch Butterfly, Rafflesia Arnoldii
27 Sep 2013
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Contents: competition, predation, herbivory, and parasitism, mutualism and commensalism. Intraspecific interactions take place among members /populations of same species. Interspecific interactions : how individuals of one species interact with individuals or populations of other species that live in the same locality. Competition: interaction that affects both species negatively (-/-) Sometimes interaction is one sided, where it"s detrimental to one species but not to the other: amensalism (-/0) Predation, herbivory, parasitism all have positive effect on one species. Mutualism is an interaction in which both species benefit (+/+) Commensalism benefits one species and leaves the other unaffected (+/0) Neutralism, when 2 species occur together but don"t interact in any measurable way (0/0: ex. Rabbit and fox (-/+) predation: rabbit and deer (-/-) for grass competition, rabbit and plants (+/-) herbivory, rabbit and disease organisms (-/+) parasitism, competition. Several different types of competition occur in nature. Exploitation competition: organisms compete indirectly through the consumption of a limited resource: ex.
