Flashcards in Lab 3: Population Growth Model: Exponential Growth Deck (24):

1

## dN/dT=

### rmN

2

## rm= (simple)

### b-d

3

## Nt=

### No(lambda)^t

4

## Nt=

### No (e^rt)

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## rm= (complicated)

### (lnNt-lnNo)/t

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## Lamda =

### e^rm

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## ln lambda=

### rm

8

## ln Nt=

### lnNo +rmt

9

## Determinsitic:

### Have fixed values therefore the outcome is fixed.

10

## Stochastic:

### models are formulated in terms of the probabilities of occurrence of such different events.

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## Why do populations need to overproduce in order to prevent from going extinct?

### In order to recover from catastrophe's. If the population didn't reproduce to replace itself, or just replaced it self they would go extinct.

12

## Biotic Potential:

### the ability of a species to produce more offspring than are neccesary to replace the existing population. This define the maximum rate at which a population can grow. (rm).

13

## 4 factors of female life history which determine rm are:

###
1.) The length of time a female reproduces

2.) female age specific survivorship

3.) female birth per female per reproduction.

4.) delay of reproduction (generation time T)

14

## Nt:

### population size at time (t) units: indiviuals

15

## No:

### original population size in unit of individuals

16

## t:

### time during which population is growing

17

## rm:

### intrinsic rate of increase (units: individuals/individual/time)

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## r:

### relaized intrinsic rate of increase at a particular point in time.

19

## e:

### base of natural log

20

## lambda:

### finite rate of increase or multiplication rate (units: time)

21

## b:

### birth rate

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## d:

### death rate

23

## What slows exponential growth?

### intraspecific competition

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