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28 Cards in this Set
- Front
- Back
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What is a community
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a collection of species living close enough to allow for potential interaction
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Where do interspecific interactions occur
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between species in the same community
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What is interspecific competition
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competition between two species
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What is competitive exclusion
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this predicts that the less effective competitor will be excluded
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What is an organisms role in its given ecosystem
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its ecological niche
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What are the slight variations in niche that allow ecologically similar species to coexist
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resource partitioning
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What is character displacement
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Some morphological trait or resource use allows closely related sympatic species to avoid competition
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What is another word for a cryptic coloration
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camoflage
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What is aposematic coloration
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it warns predators not to eat animals with chemical defenses
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What is parasitoidism
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paracite lays eggs in or on the host which their larva feed
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What is relative abundance t
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the relative number of individuals in the species
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trophic =
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feeding
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What are primary consumers
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herbavores
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secondary consumers on are
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predatores and eventually decomposers
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What is the energy hypotheses
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food webs are limited by the loss of energy 10% moves the next level
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What is dynamic stability
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shorter food chanes are better than longer ones
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A species that has a large abundance has a large
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biomass
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What is a keystone species
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it is hugely important to the other species in a given community
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What are species that change the physical environment
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ficilitators
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What is the equilibrium model
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it states that there is a period that the community reaches an equilibrium and after a disturbance the community will change until it reaches this again
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What is a disturbance
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a fire or drout ect
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What is the intermediate disturbance theory
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it states that little disturbances will lead to more species diversity
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What is ecological succession
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the process following a disturbance
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What is it called when succession starts from scratch
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primary succession
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If the succession does not start from scratch what is it called
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secondary
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What illistrates the corrilitation of the number of species and the area
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species area curve
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What is the difference between the integrated and individualistic hypothesis
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the individualistic believes that communities are an integrated unit the individualistic believes that everything is different connected by abiotic factors
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What is the difference between the rivet and the redundancy model
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the rivet model believes that if one species leaves the whole is affected, but the redundancy model believes that if one species leave then another will take their place
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