Term
| What are the genetic consequences of translocation? |
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Definition
| local adaptations and bottlenecks |
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|
Term
| what are the genetic consequences of captive breeding? |
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Definition
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|
Term
| Why are wolves considered keystone predators in Yellowstone? |
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Definition
| because they keep Elk and Mule Deer populations down despite their population size |
|
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Term
| How do wolves affect Elk population dynamics and behaviors (besides direct mortality) |
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Definition
| lower reproductive rates as Elk do not reproduce when stressed and they also change their foraging patterns to graze in more open land to see predators coming |
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Term
| What are some good reasons to allow managed hunting of wolves in yellowstone? |
|
Definition
| damages to property by wolf activity, increased chance for negative human interactions, competition with hunters for elk |
|
|
Term
| Why should wolf hunting not be allowed? |
|
Definition
| isolation of populations, increase in Elk populations, risk for overhunting again |
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Term
|
Definition
| strong effect of predators on lower trophic levels via top-down regulation |
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Term
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Definition
| interaction between 2 species in which they both benefit in some way |
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Term
|
Definition
| contest between two organisms for same niche or resource |
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Term
|
Definition
| interaction where predator feeds on its prey |
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Term
|
Definition
| form of predation where the prey is mostly primary producers such as plants, green algae, photosynthetic fungi and bacteria |
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Term
|
Definition
| intereaction between 2 species where one benefits at a cost to another |
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Term
| define ecologically functional population |
|
Definition
| minimum population size needed to maintain interactions with other species |
|
|
Term
| define minimum population size |
|
Definition
| minimum population size for existance withouth the risk of extinction |
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Term
|
Definition
| large effects because of large pop size or biomass (density) |
|
|
Term
|
Definition
| effects not proportionate to size of existance |
|
|
Term
| what is a specialist? and example. |
|
Definition
| a species that feeds on one type of food source-- ex. monarch catipillar eating only silkweeds |
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|
Term
| Why are specialist a conservation concern? |
|
Definition
| they make it easier for their particular food source to go extinct |
|
|
Term
| Why is it important to preserve generalists? |
|
Definition
| they are a part of a trophic cascade adn if they are threatened it would effect higher and lower trophic levels |
|
|
Term
| What two rates depict the theory of island biogeography? |
|
Definition
colonization and extinction
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Term
| How are metapopulation and island biogeography similar? |
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Definition
| both look at colonization and extinciton rates |
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|
Term
| How are metapop and island different? |
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Definition
| ETIB depends on the number of species in a patch and metapop is more concerned about me |
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|
Term
| What are the 4 rules to reserve design? |
|
Definition
1. bigger is better
2. connectivity is good
3. 1 large is better than 4 small
4. less edge is better |
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