Unit 5 - characteristics of pop

Question 1

Tale of easter island

Answer 1

300km off the coast of chilie
- 5th century 400ppl
- created Moai food and wars but un known
- rat took over

Question 2

Population Characterisitics

Answer 2

a group of individuals of the same species living in the same geographical area, usually able to bread together

Question 3

demography

Answer 3

study of human pop

Question 4

population ecology [three]

Answer 4

study of the organisms density and distribution and changes over time

Question 5

pop info about plants and aminals limit

Answer 5

parks
fishing limits
setting hunting

Question 6

Geographic range

Answer 6

the overall spatial boundaries within a pup lives, can vary greatly depending on species

Question 7

Habitat

Answer 7

place where organisms species normally live

Question 8

species

Answer 8

organisms that resemble one another in chemistry, appearance, behaviour, and genetic makeup which habe the ability to interbreed w each other produce fertile offpspring

Question 9

pop size (N)

Answer 9

refers to the number of individuals of particular species that occupy a given area or volume at a given time

Question 10

pop density (D)

Answer 10

refers to the number of individuals of the same species that occur per unit area or volume

Question 11

D=
N=
S=

Answer 11

D= pop density
N= total number counted
S= space occupied by pop

Question 12

pop density measured in 2 ways

Answer 12

crude density
ecological density

Question 13

crude density

Answer 13

the number of individuals of the same species per total unit area or volume

Question 14

ecological density

Answer 14

number of individuals of the same species per unit are or volume actually used by the individuals

Question 15

population dispersion [3]

Answer 15

is there general pattern in which individuals r distributed through a specific area
1) clumped
2) uniform
3) random

Question 16

clumped

Answer 16

most common - organisms densely grouped in areas of habitat with favourable conditions

Question 17

uniform

Answer 17

individuals evenly distributed through habitat

Question 18

random

Answer 18

individuals minimally influenced by interaction with other individuals’ habitat conditions virtually uniform.

Question 19

measuring pop three factros

Answer 19

• most pop r dynamic
• number and geographic location changes over time
• sample of population is used to estimate total pop size and density

Question 20

Quadrat

Answer 20

is a sampling fram used for estimating pop size for large areas
- generally used to count small or immobile organisms like grass

Question 21

Mark recapture method

Answer 21

used for mobile pop (animals)
allows marked animals to mix w unmarked animal which is then used to estimate size of entire pop

Question 22

assumptions for mark recapture sampling

Answer 22

• each organism has = chance of being captured
• pop size constant during sampling (no natural disasters)

Question 23

Technological Tracking wild pop

Answer 23

sample of animals captured marked w radio collars
- animals tracked from their migration and behaviour patterns across their geographic range