Ecology Pt. 2 Flashcards Preview

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Flashcards in Ecology Pt. 2 Deck (20):
0

Natality

The birth rate, increases population

1

Immigration

Organisms moving into an area (increases population)

2

Mortality

The death rate (decreases the population)

3

Emigration

Organisms that leave an area (decreases the population)

4

What does a J curve tell you? And give an example

That the population I'd growing and hasn't hit the carrying capacity.
- the human population

5

What does the S curve they'll you about the population?

When a population has hit it's carrying capacity and levels out

6

Carrying capacity

How many organisms an area can support

7

Limiting factors

The amount if resources that limit the population, or growth, of an organism

8

Population density

The amount if organisms in a given area

9

Symbiosis

The relationship between two organisms

10

Mutualism

A relationship between two organisms, where both if them benefit

11

Commensalism

A relationship between two organisms, where one organism benefits and the other is neutral

12

Parasitism

A relationship between two organisms, where one entities and the other is harmed

13

Predator/ prey

A relationship where one organism eats the other

14

Competition

Where organisms compete for the same resources

15

Habitat

Where an organism lives

16

Niche

The job of an organism

17

Biomass

The mass if the organisms in an area

18

Renewable resource

A product that can replace itself
- bamboo

19

Nonrenewable resource

A product that cannot replace itself
- fossil fuels