Population Ecology

Organisms ----> Population ---> ???? ---> ????

• Community ---> Ecosystem

• Ecosystem ---> Community

• Community ---> Biosphere

• Ecosystem ---> Biosphere

Which of these is a biotic factor?

• Disease

• sunlight

• water

• Soil

Which of these is an abiotic factor?

• Predator

• Disease

• Parasite

• Sunlight

Which is the definition of a population?

• An assemblage of interacting populations occupying a given area.

• Group of individuals of same species in same area at same time

• The ecosystem comprising the entire earth and the living organismsthat inhabit it

• A system, or a group of interconnected elements, formed by theinteraction of a community of organisms with their environment

Which of the following is the most common population distribution pattern?

• Clumped

• Uniform

• Random

• Standard

What is immigration?

• Members of a species leaving the population

• Members of a species entering a population

• Members of a species reproducing

• Members of a species entering juxtaposed areas of inhabitance

What is emmigration?

• Members of a species entering juxtaposed areas of inhabitance

• Members of a species entering a population

• Members of a species leaving a population

• Members of a species reproducing

Males vs Females

• Sex Ratio

• Generation Time

• Age structure

At what age do females reproduce

• Generation Time

• Sex Ratio

• Age Structure

How many females at reproductive age in cohort?

• Sex Ratio

• Generation Time

• Age Structure