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Flashcards in Biodiversity Deck (35):
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The variety of living organisms in an ecosystem

Biodiversity

1

The tool that shows the amount of needed organic material at each trophic level

Biomass pyramid

2

The desire of people to surround themselves with natural landscapes and objects

Biophilia

3

Causes of habitat degradation

1. Fragmentation
2. Intro of nonnative species
3. Overexploitation
4. Pollution

4

When two groups of species adapt to each other within an ecosystem

Coevolution

5

One organism benefits and the other of unaffected

Commensalism

6

All living things in an area

Community

7

The reduction or elimination of one species in an environment because of the presence of another species that requires the same resources

Competitive exclusion

8

The struggle that occurs when two species in an ecosystem both require the same resources

Competition

9

Name for genetic characteristics that produce a protein that is not very functional

Deleterious alleles

10

Came up with the term biophelia

E.O. Wilson

11

Term used to describe when people are encouraged to travel to natural areas in ways that conserve those environments

Ecotourism

12

A graphical model of energy flow in a community

Energy pyramid

13

Lots of oxygen and an aquatic ecosystem due to a build up of bacteria that are caused by pollution

Eutrophication

14

Barnacles and Wales

Example of commensalism

15

Oxpecker and zebra

Example of mutualism

16

Fleas and dogs

Example of parasitism

17

The gradual loss of a population until a species no longer exist for 50 years

Extinction

18

The problem that occurs when the rate of use of species by humans that outpaces the species reproduction rate

Extinction vortex

19

The term for the ability of an individual to survive and reproduce

Fitness

20

A single pathway of energy in an ecosystem

Food chain

21

A series of food chains that are interconnected together

Food web

22

The process of dividing up a large habitat into smaller subdivisions

Fragmentation

23

The change in frequency of an allele that occurs within a population

Genetic drift

24

The sum of all the alleles and their distribution within a species

Genetic variability

25

Loss of habitat that results in loss of species

Habitat degradation

26

Small areas on the earths surface but contain high percentages of all the earth living organisms

Hot spots

27

The negative effect that homozygosity house on fitness one related organisms mate

Interbreeding depression

28

The name for a single species that can have a dramatic effect of the structure of a community's food web

Keystone species

29

The symbiotic relationship in which both organisms benefit from the relationship

Mutualism

30

The role an organism plays in it ecosystem

Niche

31

The process by which an empty turn population is driven towards extinction because of a loss of genetic diversity increased ability it to the effects of density independent and interbreeding depression

Overexploitation

32

Symbiotic relationship when one organism benefits and the other is harmed

Parasitism

33

The relationship and which one organism survive sweat eating another organism

Predation

34

The name for each step of a food chain in an ecosystem

Trophic levels