Lecture 3- Population Ecology

Question 1

A lot of rain is seen at the equator due to

Answer 1

Hadley Cells

Question 2

What pushes the rising warm air of Hadley cells back down?

Answer 2

Troposphere

Question 3

Hadley Cells

Answer 3

tropical atmospheric circulation where air rises near the equator then cools and descends to the subtropics

Question 4

Hadley cells are responsible for

Answer 4

Excessive rain at the equator

Question 5

Mark-Recapture method

Answer 5

1. Capture a random sample of individuals
2. Mark those individuals, and release them back into the environment

Question 6

Assumptions of Mark- Recapture Method

Answer 6

1. Marking should be permanent
2. Mark is different for each species
3. Mark shouldn’t change the behavior of the animal

Question 7

Demography

Answer 7

Study of birth, death, and migration rates in populations and how they change

Question 7

Cohort

Answer 7

Group of same-age individuals tracked from birth to death

Question 8

How to know when the population is growing? Shrinking?

Answer 8

Growing–> R0 >1
Shrinking –> R0<1

Question 9

R0 represents the

Answer 9

average lifetime reproductive output

Question 10

Exponential growth model

Answer 10

population growth in an idealized, unlimited environment

Question 11

Logistic growth model

Answer 11

Population growth with a carrying capacity ceiling