Populations

Question 1

How can population vary in space and time

Answer 1

Random or clumped

Question 2

Clustered

Answer 2

Organsims/ individual around a resourse

Question 3

trade offs

Answer 3

to the process through which a trait increases in fitness at the expense of decreased fitness in another trait.

Question 4

Active dispersal

Answer 4

is the dispersal of organisms without any assistance. Here, organisms move from their birthplace to another place through their own abilities.

Question 5

passive dispersal

Answer 5

is a mode of dispersal in which organisms need assistance to move from one place to another place. Seeds of plants mainly disperse by passive dispersal

Question 6

facilicatated

Answer 6

???

Question 7

Mark recapture method practice question

Answer 7

A biologist nets 45 largemouth bass from a farm pond, tags their fins, and releases them
unharmed. A week later, she nets 58 bass from the pond, including 26 with tags. Based on the
Lincoln-Peterson index, estimate the number of bass in the pond

Question 8

Populations can increase in the absense of

Answer 8

selective factors aka predators

Question 9

Parctice rate of growth questions

Question 10

demostrate how carrying capacity affects the intrinsic growth rate

Answer 10

changes in varaibles alternating the population

Question 11

expontential growth

Answer 11

growth whose rate becomes ever more rapid in proportion to the growing total number or size

Question 12

In their new colombian habitat, hippos are reproducing at an earlier age

Answer 12

rate with increase

Question 13

K is

Answer 13

Carrying Capacity

Question 14

The lower the value of r means

Answer 14

The faster the carrying capcity will meet

Question 15

density dependent

Answer 15

Food availability, predation

Question 16

Density independent

Answer 16

Natural distaters. Weather

Question 17

Colombians like having the hippos around and enjoy feeding them food scraps

Answer 17

K- more food larger K

Question 18

Hippo poo causes algal bloom in their habitat and kills all the aquatic vegetation that they eat

Answer 18

K decrease

Question 19

Postive density dependent

Answer 19

Allele effect at which occurs primarily when inital population sizes are small. As the population increases the reproduction increases

Question 20

What is Quorum sensing

Answer 20

Quorum sensing is a way for bacteria to communicate and coordinate their actions based on their population density.

Question 21

Life tables show

Answer 21

Surviorship as cohorts age in a population

what is Cohorts age

Question 22

Type 1 surviorship

Answer 22

Where old age is common

Question 23

Type 2 surviorship

Answer 23

contast risk in all ages

Question 24

Type 3 surviorship

Answer 24

Most of the individuals die young

Question 25

Semelparous

Answer 25

Single reproductive event

Question 26

Iteroparous

Answer 26

Reproduction is repeated

Question 27

R strategt

Answer 27

Short life span so reproduction needs to happen quickly. With this you can have quick population growth

Question 28

What kind of surviorship is Density indentpent or r stragiset

Answer 28

Type3

Question 29

K stragiest

Answer 29

Long life span with high quailty resources . Growth that stablizes

Question 30

What kind of surviorship is K stragiest

Answer 30

Type 1 or Type 2

Question 31

Depending on where you live or different areas

Answer 31

Life expectanity is determined.

Question 32

Think about Covid and the life expenticty after that

Answer 32

It didnt rebound in America

Question 33

We can detrmine life expecty at a yound age. How? by density dependent vs indepent

Answer 33

Dependent: will determine by the resources you have condition you bound

Independt: is everything out of your control with gun violence, accidents etc

Question 34

Changes in K

Answer 34

changes in carrying capacity. decrease or increase