Populations

Question 1

Population

Answer 1

is a group of organisms of the same species which have the potential to inbreed or a group of organisms of the same species occupying a particular place at a particular time

Question 2

Population distribution

Answer 2

how individuals in a population are dispersed in space

Question 3

Population demography

Answer 3

study of the vital statistics or properties of a population (age, structure, birth, death, migration, growth, reproduction, and etc)

Question 4

Population genetics

Answer 4

study of the distribution and change of allele frequencies as a result of evolutionary processes (natural selection, genetic drift, gene flow, and etc.)

Question 5

Population density

Answer 5

number of individuals per unit area or volume

Question 6

Population distribution

Answer 6

pattern of dispersal of individuals within the area of interest

Question 7

Emigration

Answer 7

movement of an organism out of a given habitat or area

Question 8

Immigration

Answer 8

movement of an organism into a given habitat or area

Question 9

Migration

Answer 9

is directed dispersal with a return to the site of origination

Question 10

Catadromous

Answer 10

organism that lives in freshwater, but migrates to marine waters to breed/spawn

Question 11

Viviparous

Answer 11

bringing forth live young that have developed inside the body of the parent

Question 12

Propagules

Answer 12

a vegetative structure that can become detached from a plant and give rise to a new plant, e.g., a bud, sucker, or spore

Question 13

Metapopulation

Answer 13

is a series of small, discrete populations united together by dispersal

Question 14

Corridors

Answer 14

Link core biological areas, allowing animals movement between areas

Question 15

Unitary organism

Answer 15

individuals are highly determinate in form and while growing pass through predictable (innately determined) sequences of life history stages

Question 16

Modular organism

Answer 16

zygote develops into unit, or module, which produces more modules thus producing an organism with a variable number of modules, whose development is unpredictable and strongly influenced by environmental factors

Question 17

Genets

Answer 17

are individual plants or zygotes produced by sexual reproduction

Question 18

Ramets

Answer 18

are asexually produced individuals derived from the parent zygote or genet

Question 19

Demography

Answer 19

is the study of processes that influence population size - it is the way we study changes brought about by births, deaths, and dispersal

Question 20

Natality

Answer 20

may think of this as births, but includes more than just birth - hatching, germination, and fission

Question 21

Fecundity

Answer 21

number of offspring produced per unit of time

Question 22

Realized fecundity

Answer 22

actual number of survivors

Question 23

Mortality

Answer 23

death rate; how many deaths per unit of time

Question 24

Survivorship

Answer 24

how man survive (don’t die) per unit of time

Question 25

Longevity

Answer 25

life expectancy; examines life-span of individuals