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12 Cards in this Set
- Front
- Back
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symbiosis |
living together--close ecological relationship between the individuals of two (or more) different species. |
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Neutralism |
0/0 -->This doesn't exist Numerous songbirds (robins, finches, orioles, titmouse) feeding and nesting together. Spiders and praying mates in same bush. Gypsy moths down and ticks up. Vice versa. |
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Competition |
-/- -->interaction in which individuals of same species (infraspecific) or different species (interspecific) vie for limited resource. Competitive exclusion principle--one species wins out. Deer and elk or sheep--feed on same grass. |
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Mutualism |
+/+ -->interaction that benefits both species. Vital for both to survive for maximum life span. Mycorrhizal fungi associated with plants, squirrels dispersing acorns, animals disperse seeds after eating fruits. |
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Protocooperation |
+/+ -_> evolving into mutualism. Not required to survive. Crabs paste sponge to back Birds eat parasites out of cows nose. |
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Commensalism |
+/0 -->one is benefitted, other is neither harmed nor benefitted. Orchid and trees (orchids get sunlight and place to grow) Remora and shark |
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Amensalism |
0/- -->one is harmed, other is neither harmed or benefitted. Pig disturb soil and organisms are eaten. |
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Allelopathy |
0/- --> Amensalism that specifically relates to one organism chemically controlling another (suppress something before it gets there). |
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Predation |
+/- -->One species obtains food killing the other. Mountain lion and deer. Wolf pack and moose. |
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Parasitism |
+/- -->One species obtains food, part of the host is consumed, but not killed. Many can kill. Flea and dog. Cowbird is nest parasitism. |
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Herbivory |
+/- --> consuming and killing plant although it does regrow. Herbivore eating a plant, but not really killing it. |
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Parasitoid |
+/- -->Parasite during most of its life cycle. Eventually becomes a predator, kills its host. Wasp attacking gall. Offspring consume the fly larva on inside. Hornworm with parasitoid wasp eggs. |
