Intraspecific Competition Flashcards Preview

Biodiversity, Ecology And Conservation > Intraspecific Competition > Flashcards

Flashcards in Intraspecific Competition Deck (10)
Loading flashcards...
1

What is the carrying capacity (K)

A populations upper sustainable limit

2

What is the ultimate effect of intraspecific competition

Decreased contribution of individuals to subsequent generations

3

What happens to song sparrows fecundity with increased population size

Decreases

4

For intraspecific competition to occur, what must be in limiting supply

The resource for which they are competing

5

What is reciprocity?

All the competing individuals must be the same

6

What’s an example of reciprocity not being present?

Bird of prey chicks, ‘insurance chick’

7

In what way do Arizona Spadefoot toads not show reciprocity?

They have carnivorous and herbivorous tadpoles

8

How do death rates differ with increasing population between density dependent and independent populations

Density independent is a straight line, density dependent is exponential

9

What’s the difference between exponential and logistic growth?

Logistic takes into account intraspecific competition and reaches the carrying capacity

10

Why does competition result in fluctuating populations

Overcompensation occurs
A small population with rapid growth rate overshoots k, the large population uses up its resources and crashes then under shoots k, cycle repeats