Ecosystem Dyanmics

Ecosystem Dyanmics

Biology 2020-2021

Habitat

WHERE an organism lives. This includes BIOTIC and ABIOTIC factors.

Niche-Factors that describe HOW the organism lives in its habitat such as:

• Food sources: type of food, competition, where an organism is in the food chain

• Abiotic Conditions: temperature, amount of water, etc.

• Behavior: what time of day the organism is active, where and when it feeds and reproduces, etc.

Multiple Select

Which of these describes a habitat?

• A forested area

• Nocturnal Breeding

• Herbivore

• temperate climate

Multiple Select

Which of these describes an organism's niche?

• Rainforest

• Diurnal

• Coastal ocean

• Preys on insects

Predation

When 1 organism (predator) captures and consumes another organism (prey).

Competition

When 2 organisms compete for the same limited resource; can occur between members of 1 species or among 2 or more different species.

Open Ended

Is a deer eating a plant an example of predation? Why or why not?

Competitive Exclusion Principle

• When 2 species compete for the same resource, 1 will do it better than the other

• The unsuccessful species will be pushed to another niche or go extinct

Open Ended

What would happen to the songbirds in this picture if the tip of the tree was broken off (talk about this in terms of the competitive exclusion principle).