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22 Cards in this Set
- Front
- Back
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situation in which two disimilar organisms live together in close association
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symbiosis
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1 species (parasite) benefits from a prolonged close association with a host host can be harmed
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parasitic relationship
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viruses, bacteria, protozoan, and have small generation time
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microparasites
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flat worms, round worms, flukes, lice, fleas, ticks, fungi, rusts, smuts, and anthocephalans
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macroparasites
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inside parasites
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endoparasites
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caused by borrelia burgderfei lives in the blood stream
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lyme disease
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anopheles mosquito
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malaria
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host species in hich parasite becomes an adult and reaces maturity
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definitive host
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all other hosts not def
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intermediate host
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balance trade off between varilance and tranmitibility
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to maximize parasite fitness
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parasites are transmitted directly from mother to offspring, usually right after or before birth
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vertical transmittion
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individuals seek a common resource that is in short supply
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interspecific competition
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2 forms of interspecific are:
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1. exploitation
2. interference |
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Data suggests 6 types of interspecific are:
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1. consumption
2. preemption 3. overgrowth 4. chem interaction 5. territorial 6. encounter |
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when two or more species coexist using the same resources, one must displace or exclude the other
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competitive exclusion principle
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total range of conditions under which a species can survive
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fundamental niche
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portion of the funda,mental niche that a species acutally exploits as a result of interaction with other species
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realized niche
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when two or more organisms use a portion of same resource simultaneously assum,ed to be proportional to degree of competition for that resource
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niche overlap
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evolution of one species in response to interaction with another species
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coevolution
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prey have evolved means of defense against predators
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adaption
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predators have evolved a means against the defenses of the prey
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coadaption
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competition for space influences access to food and nesting sites
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interspecific terriortoriatlity
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