Population Modelling

Question 1

What are the aims of population ecology?

Answer 1

To understand and predict dynamics of populations.

To use models to design conservation action and management strategies.

Question 2

How do births relate to population dynamics?

Answer 2

Clutch size and fledgling success: very variable between species, is variable within species, dependent on age, experience and body condition. e.g. female sparrowhaws tend to have more young as they increase in age up to a point, then less with age.
Number of breeding attempts: birds are seasonal breeders, dependent on latitude - in south may have more broods. Dependent on habitat sturcture.

Question 3

How do deaths relate to to population dynamics?

Answer 3

• predation
• disease
• starvation

Question 4

How do immigration and emigration relate to populaiton dynamics?

Answer 4

recruitment to a population depends on the number of young produced and surving locally and immigration from the outside area.