Term
| Overfishing on Georges Bank has caused cod and haddock populations to ___. |
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Definition
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Term
| Whales are difficult to study because: ___ (three things). |
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Definition
| it takes them a long time to mature to be able to reproduce, they only reproduce one offspring at a time and they have very large ranges |
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Term
| The best way to control pests is to reduce that species "k," which is ___. |
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Definition
| the carrying cappacity possible in their environement, if food available to them is reduced, their population will decline |
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Term
| Species interactions can alter gene frequencies. Adaptation in one species may lead to evolution of an adaptation in a species it interacts with. This is called coevolution, AKA ___. |
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Definition
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Term
| There are seven major types of species interactions: predation, herbivoy, parasitism, mutalism, competition, commensalism and amensalism. Three of the above, ___ (three interaction types) are antagonistic, meaning ___. |
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Definition
predation (predator v. prey)
herbivory (herbivore v. plant)
parasitism (parasite v. host)
one benefits while the other loses |
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Term
| Community ecology studies the group of ___ interacting in a habitat. |
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Definition
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Term
| A community contains two or more populations, which are each made up of one ___. |
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Definition
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Term
| Competition is a -/- interaction, because both species ___. Competition is defined when two species use ___ and it is limiting. |
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Definition
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Term
| There are two types of competition (a -/- interaction). In intraspecific interactions, there is competition ___, while in interspecific interactions, the competition exists between ___. An example of intraspecific competition is ___. |
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Definition
among the same species
between two different species
sexual selection |
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Term
| Along with intra- and interspecific competition, there is also intereference and exploitation competition. In interference competition, the two species ___, while in exploitation competition, ___. |
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Definition
physically prevent each other from accessing resources
one species exploits a resource (makes full use of), so that the other species is unable to access it |
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Term
| An example of comptetition among sessile (non-moving) organisms is the competition for intertidal zones seen in ___. It is a -/- interaction, because neither species is benefiting as much as they could if the other was not present. |
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Definition
| barnacles (Chthamalus v. Balanus, the earlier is found close to the water, because it is more resistent to desiccation) |
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Term
| Character displacement occurs when individuals within a species exhibit different ___ or morphology depending on whether they are ___. For example, the bird G. fuliginosa was found to spend ___ time feeding on nectar and have a ___ wing span when a species of bee (X. darwinii) was not present. |
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Definition
characteristics
competing with another species
more
smaller |
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Term
| In competitive exclusion, one species prevents all members of another from ___, and the inferior competitor ___. |
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Definition
accessing a resource
goes locally extinct |
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Term
| When two competing species develop changes which allow them to coexist, the result is ___. |
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Definition
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Term
| A fundamental niche is different than a realized niche, because in a realize niche, the species is affected by ___. There are many dimensions of a niche, an example of this is the "25-dimensional hypervolume" of the loblolly pine. |
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Definition
| biotic limitations with other species |
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