population ecology

Question 1

study of the hierarchy of biological systems in interaction with their environments

Answer 1

ecology

Question 2

what are the levels of biological organization?

Answer 2

1. organism
2. population
3. community
4. ecosystems

Question 3

an individual animal

Answer 3

organism

Question 4

the study of an organism requires…

Answer 4

an understanding of its physiology and behavior that are used to survive, grow and reproduce

Question 5

what is an example of a physiological property of an organism?

Answer 5

temp regulation, permits animal to live in changing and adverse environments

Question 6

behaviors of organisms are important for

Answer 6

obtaining food, finding shelter, escaping enemies and bad env, finding mates, and tending offspring

Question 7

population

Answer 7

group of organisms of the same species (or reproductive community)

Question 8

what are measurable properties of populations?

Answer 8

population growth rate, mating systems, genetic variability

Question 9

communities

Answer 9

populations of many species living together, interact in complex manners

Question 10

includes the living community and all of the abiotic, physical factors

Answer 10

ecosystem

Question 11

environment

Answer 11

abiotic and biotic factors in which animals live their lives

Question 12

physical space where an animal lives and its defined by the animals normal activity

Answer 12

habitat

Question 13

niche

Answer 13

unique, multidimensional relationship of species iwth its env

Question 14

what does a niche include

Answer 14

animals limits of temp, moisture, food, etc

Question 15

can tolerate a wide range of env conditions, or exploit a wide range of resources

Answer 15

generalist

Question 16

specialist

Answer 16

narrow dietary requirements or a limited tolerance to temp changes, etc

Question 17

no two species can occupy the same niche if they are to live together in a stable ecological community

Answer 17

competitive exclusion principle

Question 18

study of age structure, sex ratio, and growth rate and the factors that influence them for population

Answer 18

demography

Question 19

what defines the age pattern of a population from birth to death of the last member

Answer 19

survivorship curve

Question 20

type 1 curve demonstrates

Answer 20

most individuals die at old age, rare in nature

Question 21

type 2 curve demonstrates…. and represents animals that….

Answer 21

rate of mortality is constant across ages
-characterizes animals that care for their young

Question 22

type 3 curve demonstrates….

Answer 22

species that reproduce large numbers of young but experience rapid and sustained mortality

Question 23

population growth is the balance between

Answer 23

birth rate and death rates, birth - death

Question 24

intrinsic rate of increase (r)

Answer 24

populations have the ability to grow exponentially.

Question 25

depleted first

Answer 25

limiting resource

Question 26

largest population that the limiting resource can support

Answer 26

carrying capacity (K)

Question 27

diminishing resources ___ population growth rate

Answer 27

slow