Term
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Definition
| All biotic factors an one particular area |
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Term
| Interspecific Interactions |
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Definition
| relationships between species in a community |
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Term
Interspecific competition
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Definition
| competition for resources between plants, animals, or decomposers when resources are in short or limited supply |
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Term
| Competitive exculsion principle |
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Definition
| when organisms are in competition, the fittest(one with the most reproductiuve success) will always dominate or exhibit an atvantage over the other organism |
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Term
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Definition
| The sum total of a species use of the biotic and abiotic resources in its environment |
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Term
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Definition
| The division of environmental resources by coexisting species such that the niche of each species differs by one or more significant factors from the niches of all coexisting species |
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Term
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Definition
| The tendency for characteristics to be more divergent in sympatric populations of two species than in allopatric populations of the same two species |
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Term
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Definition
| An interaction between species in which one species, the predator, eats the other, the prey |
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Term
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Definition
| Any process inflicted on a plant's seeds by an animal that results in the inviability of the seed |
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Term
| 5 types of predator adaptations |
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Definition
- strength
- sharp claws
- speed
- heightend senses
- venom
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Term
| 3 types of Behavioral defenses (of prey) |
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Definition
- Mullerian Mimicry
- Cryptic Coloration
- Aposematic Coloration
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Term
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Definition
| Coloration that camoflages the organism |
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Term
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Definition
| Coloration that gives a warning to predators |
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Term
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Definition
| Type of mimicry in which a harmless species looks like a species that is poisonous or otherwise harmful to predators. |
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Term
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Definition
| A mutual mimicry by two unpalatable species. |
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Term
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Definition
| An interaction in which an herbivore eats parts of a plant or algae. |
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Term
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Definition
| A symbiotic relationship in which the symbiont (parasite) benefits at the expense of the host by living either within the host (as an endoparasite) or outside the host (as an ectoparasite). |
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Term
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Definition
| An organism that benefits by living in or on another organism at the expense of the host. |
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Term
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Definition
| The larger participant in a symbiotic relationship, serving as home and feeding ground to the symbiont. |
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Term
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Definition
| A parasite that lives within a host. |
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Term
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Definition
| A parasite that feeds on the external surface of a host. |
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Term
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Definition
| A type of parasitism in which an insect lays eggs on or in a living host; the larvae then feed on the body of the host, eventually killing it. |
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Term
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Definition
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Term
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Definition
| Symbiotic relationship in which both participants benifit |
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Term
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Definition
| Symbiotic relationship in which one of the participants benifits while the other is not helped or hurt |
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Term
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Definition
| Interaction between two different organisms living in close physical association |
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Term
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Definition
| Mutual evolutionary influence between two different species interacting with eachother and reciprocally influencing each other's adaptations |
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Term
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Definition
| A mixture of how may and what kinds of organisms live in a set location |
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Term
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Definition
| Is the number of different species in a set location |
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Term
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Definition
| The different feeding relationships in an ecosystem, which determine the route of energy flow and the pattern of chemical cycling. |
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Term
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Definition
| The pathway along which food is transferred from trophic level to trophic level, beginning with producers |
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Term
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Definition
| The elaborate, interconnected feeding relationships in an ecosystem |
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Term
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Definition
| The concept that the length of a food chain is limited by the inefficiency of energy transfer along the chain. |
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Term
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Definition
| Differences in the abundance of different species within a community |
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Term
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Definition
those species in a community that are the most abundant or that collectively have the highest biomass
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Term
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Definition
| total mass of all individuals in a population |
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Term
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Definition
| species (generally introduced by humans) that take hold outside their native range |
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Term
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Definition
| species that is not necessarily abundant in a community yet exerts strong control on a community structure by the nature of its niche |
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Term
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Definition
| technique for restoring eutrophic lakes that reduces populations of algae by manipulating the higher-level consumers in the community |
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Term
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Definition
| a community's ability to change or rebound |
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Term
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Definition
| the ability of a community to withstand enviornmental disturbances |
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Term
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Definition
| to interupt the quiet, peace, or order of |
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Term
| Intermediate disturbance hypothesis |
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Definition
| local species diversity is maximized when ecological disturbances is neither too rare nor too frequent |
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Term
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Definition
| the gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another until a stable climax is established |
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Term
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Definition
| rubble left behind by a retreating glacier |
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Term
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Definition
| A type of ecological succession that occurs in a virtually lifeless area, where there were originally no organisms and where soil has not yet formed |
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Term
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Definition
| A type of succession that occurs where an existing community has been cleared by some disturbance that leaves the soil intact |
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Term
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Definition
| The evaporation of water from soil plus the transpiration of water from plants |
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