test 2

Question 1

Population

Answer 1

all members are part of the same species (population of turtles, population of dogs)

Question 2

density

Answer 2

how many of a species exist in a given area

Question 3

Density will ____________ with an increase in body size

Answer 3

decrease

Question 4

relationships

Answer 4

mating, competition, protection and avoidance of getting killed

Question 5

demography

Answer 5

the study of populations in a given area

Question 6

Quadrat Method

Answer 6

useful for counting animals that move (minimal moving animals)

Question 7

allelopathy

Answer 7

when an organism produces biochemicals that influence the growth of other organisms

Question 8

uniform distribution pattern

Answer 8

Evenly spaced, reasonably close together, successful for finding a mate, Equal competition for food, Often used for plants

Question 9

random distribution patterns

Answer 9

Randomly spaced, Less successful for finding a mate, Uneven distribution for food

Question 10

clump distribution pattern

Answer 10

All in a clump, Successful for finding a mate, More difficult to compete for food, Predator avoidance is uneven (those on inside of clump are less likely to get eaten)

Question 11

birth rate

Answer 11

how many babies are born in a particular population

Question 12

death rate

Answer 12

how many of those animals die at whatever ages

Question 13

life expectancy

Answer 13

how long would an animal be predicted to live

Question 14

who lives longer in the US? Women or men?

Answer 14

Women

Question 14

Prey animals have a higher _____________________ and lower ________________

Answer 14

birth and death rate ,
life expectancy

Question 15

Type 1 survivorship curve

Answer 15

most of the young survive (humans)

Question 15

Type 2 survivorship curve

Answer 15

constantly going down, some of the babies don’t survive (birds)

Question 16

Fecundity

Answer 16

the reproductive capacity of an individual of a population

Question 17

total fertility rate

Answer 17

the total number of offspring a female will have in her lifetime. Age at when a female can begin reproducing depends on the species .

Question 18

Semelparity

Answer 18

a characteristic of an animal that has one reproductive event in its life

Question 19

Iteroparity

Answer 19

animal can have multiple reproductive events

Question 20

Biogeography

Answer 20

the study of distribution of species and ecosystem in geographic space and through geological time

Question 21

Crepuscular

Answer 21

meaning they are most active at dusk/night or at dawn/early morning, white tail deer do this

Question 22

Behavior is an action in response to a ________

Answer 22

stimulus

Question 23

Pheromone

Answer 23

smell/odor given off by hormones by an animal (females can give off odor during mating season that attracts the males)

Question 24

altruism

Answer 24

when the benefit of behavior is

Question 25

indicator species

Answer 25

help us determine something, like what’s happening locally or what kind of habitat it is

Question 26

pioneer species

Answer 26

the first species to inhabit an ecosystem

Question 27

succession

Answer 27

the change that occurs to an ecosystem

Question 28

fire, volcano, storms

Answer 28

can cause succession

Question 29

Nutria

Answer 29

are not native to VA, destroy wetlands by eating the roots of plants

Question 30

Things that can cause succession

Answer 30

Fire, Volcanoes, Storms, invasion of new species, climate change, humans

Question 31

reasons animals communicate

Answer 31

warn other animals of danger, find a mate, mark a territory, socialization

Question 32

niche

Answer 32

the ecological role an animal plays in an ecosystem

Question 33

example of a niche (beavers)

Answer 33

a beavers niche is to create ponds

Question 34

coevolution

Answer 34

when two or more species evolve together, each adapting to changes in the other.

Question 35

example of coevolution (tobacco)

Answer 35

tobacco plants produce nicotine which is toxic to most insects; however, the tobacco hornworm has evolved the capability to store nicotine in its body, and use it to defend the hornworm from predators and parasitoids.

Question 36

Batesian mimicry

Answer 36

a harmless species mimics the markings and colors of a harmful species

Question 37

example of Batesian mimicry (snakes)

Answer 37

the kings snake is not poisonous but the eastern coral snake is and the kings snake looks like the coral snake

Question 38

Mullerian Mimicry

Answer 38

multiple species share the same coloration but all of them actually have defenses. Both of the species are dangerous.

Question 39

example of Mullerian Mimicry (butterflies)

Answer 39

Several unpleasant-tasting Heliconius butterfly species share a similar color pattern, and they all are disgusting to eat

Question 40

Interspecific competition

Answer 40

competition between two animals that are not the same species

Question 41

intraspecific competition

Answer 41

competition between two individual animals that are both of the same species

Question 42

what animal sounds like a human baby crying

Answer 42

Bobcat

Question 43

invasive vine introduced by VA highway department

Answer 43

Kudzu

Question 44

invasive bird introduced by colonizers in the 1700s

Answer 44

The English house sparrow

Question 45

how many accidents are cuased by deer a year in the US

Answer 45

over 1 million a year

Question 46

where are cattails common in north america

Answer 46

Florida everglades, great lakes, and prairie pothole region

Question 47

what makes cattails grow more

Answer 47

fertilizer and herbicides from human action, or when natural ecosystem is interrupted

Question 48

how many $ worth of damages do coyotes cause people in agriculture

Answer 48

$1 million worth