Lab 11: Island Biogeography and Conversation

Question 1

biogeography

Answer 1

The study of the past and present geographic distribution of species.

Question 2

taxon

Answer 2

A named taxonomic unit at any given level of classification.

Question 3

dispersal

Answer 3

The movement of individuals or gametes away from their parent location. This movement sometimes expands the geographic range of a population or species.

Question 4

competitive exclusion

Answer 4

The concept that when populations of two similar species compete for the same limited resources, one population will use the resources more efficiently and have a reproductive advantage that will eventually lead to the elimination of the other population.

Question 5

What factors most influence species diversity on islands?

Answer 5

Island size

Distance of the island from the mainland

Question 6

Who theorized on island biogeography?

Answer 6

Robert MacArthur and E.O. Wilson

Question 7

Give the equation relating number of species to island area.

Answer 7

S = (C)(A^z)

where 
S= number of species
A= area of the island
C= the value of S at A=1  (i.e., y-intercept)
z= slope

Question 8

As area increases, the number of species

Answer 8

increases exponentially

Question 9

Area Effect

Answer 9

Species richness increases (nonlinearly) with area available.

Question 10

autecology

Answer 10

the ecological study of an individual organism, or sometimes a particular species.

Question 11

archipelago

Answer 11

a group of islands