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21 Cards in this Set
- Front
- Back
Arctic Foxes introduced on Aleutian islands caused the terrestrial plant vegetation to go down because they were feeding on marine seabirds that provided ____________ to the plants
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subsidies; plants limited by resources, bottom up effect
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Finches adapting beak sizes to eat either small or larger seeds is an example of:
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character displacement
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Africanized bees are selected for the tropics because they can defend themselves against army ants by aggressive defensive stinging and bees dispersing at small colony size. In contrast, European bees shiver to warm hives during winter. If Africanized bees move northward and don't persist this would be an example of?
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Realized niche
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A tree can tolerate lower temperatures in october because of?
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acclimatization
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female western fence lizards select large rocks with high heat capacity to keep themselves at optimal temperatures overnight, males warm up faster in the morning on the sand. This shows that lizards are:
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ectotherms
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The fact that kestrel survival decreases with brood size is an example of a?
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Life history tradeoff
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bass and perch not being able to survive their first winter is an example of a?
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life history bottleneck
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an asexual spore settling in a new area with the right abiotic and biotic conditions and being able to reproduce itself and establish a new population is called a?
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propagule; a dispersing unit capable of establishing a new population
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a coral that is an adult of indeterminate form is known as a ?
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modular organism
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daphnia population in lab overshooting the carrying capacity before stabilizing is a problem with what model?
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the logistic model
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the balanus and chthamalus barnacle experiment is an example of what kind of competition?
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exploitative competition
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wild salmon and hatchery salmon have a common predator in humans. a scientist observes that the two populations have decreased over time together because of what kind of compeitition?
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apparent competition
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an insect that collects nectar without dispersing pollen is a?
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cheater
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the pisaster starfish is an example of a _______ species?
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keystone
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mussels are an example of a ________ species?
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dominant
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a fire is an example of a?
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disturbance
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the fact that oral bacterial diversity increases with human age is an example of?
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succession
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why do swordfish have high levels of mercury in them?
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because they are the top predators in their ecosystem and are very long-lived; more buildup of Hg
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seaweeds being preyed upon by detritivorous amphipods and flies which subsidize spiders and lets plant grow because spiders decrease phytophagous insects in an example of?
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allochtonous subsidies
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forest edge thinning leading to deposited nitrogen peak moving from edge to 25 m into forest, vole damage on seedling reduced, deer damaged increase, and more field seeds penetrating forest is an example of a?
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edge effect
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cowbird parasitism is making what kind of habitat for songbirds?
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sink habitat
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