Environmental Biology

?
  • Created by: Jess
  • Created on: 30-05-13 16:56
What is Evolution by Natural Selection?
The change in populations over many generations due to a process that eliminates those individuals that are less likely to survive and reproduce in a particular environment.
1 of 15
What are Tinbergen's 4 whys?
Function: What effect does a behaviour have on an individuals survival? Mechanism: What factors make an animal behave in a particular way? Development: Why did the animal develop such a behaviour? Evolution: Why has the behaviour evolved?
2 of 15
What is Imprinting?
A form of learning involved in the development of a species-specific pattern of behaviour that occurs during a critical period. Has a large innate component.
3 of 15
What is Recirprocal Altruism?
Behaviour that benefits others in the species at cost to the individual with the notion that the behaviour would be returned at a later date.
4 of 15
What is an ESS?
Evolutionary Stable Strategy.
5 of 15
What are 3 Population Principles?
Density. Demography, Dispersion.
6 of 15
Name 3 Population Dispersion Patterns.
Random. Uniform. Clumped.
7 of 15
What are the factors preventing indefinite population expansion?
Limited resources. Predation. Disease.
8 of 15
Name 4 types of Species Interaction.
Predation. Competition. Commensalism. Mutualism.
9 of 15
What is Coevolution?
The process by which two or more species of organisms influence each others evolutionary pathway.
10 of 15
What is Batesian Mimicry?
The mimicry of an unpalatable species (the model) by a palatable one (the mimic).
11 of 15
What is a Keystone Species?
A species within a community that has a role out of proportion to its abundance.
12 of 15
Name 2 Biodiversity Indices.
Simpson's Index. Shannon-Weiner Index.
13 of 15
What is Ecological Succession?
The gradual and continuous change in species composition and community structure over time.
14 of 15
What are 2 determinants of number of species on a new island?
Size of the island. Distance of the island from the mainland.
15 of 15

Other cards in this set

Card 2

Front

What are Tinbergen's 4 whys?

Back

Function: What effect does a behaviour have on an individuals survival? Mechanism: What factors make an animal behave in a particular way? Development: Why did the animal develop such a behaviour? Evolution: Why has the behaviour evolved?

Card 3

Front

What is Imprinting?

Back

Preview of the front of card 3

Card 4

Front

What is Recirprocal Altruism?

Back

Preview of the front of card 4

Card 5

Front

What is an ESS?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »