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18 terms

Symbiosis

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symbiosis
an intimate and protracted association between 2 or more organisms of different species
endosymbiosis
when the association involves one of the organisms living within the other
mutualism
when both benefit (++)
Commensalism
when one benefit the other is neutral (+0)
Parasitism
When one benefits, the other is negatively impacted (+-)
Pollinators
Animals that move pollen from one flower to another
Seed Disperses
Animals that disperse seeds away from the parent plant
Parasitoids
parasites that kill their host
microparasites
very small short generation times
Macroparasites
relatively large usually an external stage
Ticks, leaches, fungi
Ectopartasites
Live outside host body
Endoparasites
live inside hosts body
Monophagous
feed off one or 2-3 closely related specices
Polyphagous
Feed off multiple species
Parasites effect on host
1. biochemical
2. Abnormal growth
3. Sterility
4. Behavior
Brood Parasitism
imposing the care of eggs or young onto surrogate parents.
Kleptoparasitism
Forcible theft of prey by the parasite from the host
Density
Number of organisms per unit of area