Intro to Ecology

Question 1

Defintion of Ecology

Answer 1

The investigation of the distribution and abundance of species and their interactions with the environment

Question 2

Major Questions of Ecology

Answer 2

What causes a species to be common or rare? Why do the sizes of populations fluctuate? WHy are some species common in some places, but not others?

Question 3

Population

Answer 3

All the individuals of a single species living together in time and space

Question 4

The aim of population biology is to:

Answer 4

predict the number of individuals for a given population at a given time and place.

Question 5

Applications of population biology:

Answer 5

Increasing yields in agriculture, optimizing population size in fisheries, wildlife management

Question 6

Describe overharvesting in fisheries:

Answer 6

When all adults have been harvested, the young begin to be harvested, resulting in a large lag in births.

Question 7

Where are cod fisheries?

Answer 7

Off the coast of New Foundland and Nova Scota, the Grand Banks

Question 8

When was the moratorium on cod fishing enacted?

Answer 8

1992

Question 9

What species stepped in to fill the ecological role of cod?

Answer 9

Shrimp and sharks