BIO120H1 Lecture 7: Biology Lecture 7 Article 2.docx
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BIO120H1 Full Course Notes
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Pathogens, endoparasites, ectoparasites, parasitoids, antagonistic interaction, aposematic coloration, batesien mimicry. Become more likely as pop size of the food source increases. Alter balance of food web, and removal of any part of web can have a huge impact on community. *anatagonistic interaction: interactions between 2 organisms that benefits one to the detriment of the other. One organism kills and consumes another to get energy to live longer and promote r: individual level: prey has an abrupt decline in fitness (based on lifetime reproductive. Influences orgs at 2 ecological levels: success) cause it won"t evaaa reproduce again: community level: predation reduces # of individuals in prey pop. *group predation = common among social carnivores (lions) *carnivorous interactions = one animal/plant eats another (best example) Absorb nutrients from insects as they become available during digestion: lion, venus fly trap, pitcher plant, protozoa, bacteria.
