Case Studies And Related Ecology Terms

Front 1

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

Back 1

subsidies; plants limited by resources, bottom up effect

Front 2

Finches adapting beak sizes to eat either small or larger seeds is an example of:

Back 2

character displacement

Front 3

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?

Back 3

Realized niche

Front 4

A tree can tolerate lower temperatures in october because of?

Back 4

acclimatization

Front 5

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:

Back 5

ectotherms

Front 6

The fact that kestrel survival decreases with brood size is an example of a?

Back 6

Life history tradeoff

Front 7

bass and perch not being able to survive their first winter is an example of a?

Back 7

life history bottleneck

Front 8

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?

Back 8

propagule; a dispersing unit capable of establishing a new population

Front 9

a coral that is an adult of indeterminate form is known as a ?

Back 9

modular organism

Front 10

daphnia population in lab overshooting the carrying capacity before stabilizing is a problem with what model?

Back 10

the logistic model

Front 11

the balanus and chthamalus barnacle experiment is an example of what kind of competition?

Back 11

exploitative competition

Front 12

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?

Back 12

apparent competition

Front 13

an insect that collects nectar without dispersing pollen is a?

Back 13

cheater

Front 14

the pisaster starfish is an example of a _______ species?

Back 14

keystone

Front 15

mussels are an example of a ________ species?

Back 15

dominant

Front 16

a fire is an example of a?

Back 16

disturbance

Front 17

the fact that oral bacterial diversity increases with human age is an example of?

Back 17

succession

Front 18

why do swordfish have high levels of mercury in them?

Back 18

because they are the top predators in their ecosystem and are very long-lived; more buildup of Hg

Front 19

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?

Back 19

allochtonous subsidies

Front 20

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?

Back 20

edge effect

Front 21

cowbird parasitism is making what kind of habitat for songbirds?

Back 21

sink habitat