Flashcards in Lab 13: Demography Deck (15):

0

## A population grows when __________ rate exceeds __________ rate.

### Birth, death

1

## A population grows when birth rate __________ death rate.

### Exceeds

2

## __________ __________ study the factors that determine demography, including resources, predators, diseases, and competitors.

### Population biologists

3

## __________ __________ are equations designed to represent real-world processes in simple ways, so that we can better understand the forces that affect real populations.

### Population models

4

## In this lab, you will use the program __________, which is free software for understanding population models.

### Populus

5

## "__________-__________" means that a population grows without regards to its density.

### "Density-independent"

6

## Two model types exist:

### Continuous and Discrete

7

## The __________ model uses calculus to figure population size at instantaneously small time steps.

### Continuous

8

## The __________ model uses simple algebra and waits one time step to figure population size.

### Discrete

9

## What symbol represents discrete models?

### Lambda

10

## What symbol represents continuous models?

### R

11

## Lambda and r both represent:

### Growth rate

12

## Difference between birth rate and death rate.

### Intrinsic rate of increase (r)

13

## The ratio of population size at the end of one time interval to the population size at the end of the previous time interval.

### The rate of growth (lambda)

14