Impact of Environmental Change Flashcards

All 6 cards in this deck

Name three environmental changes that affect the distribution of species in an ecosystem.

Temperature, availability of water, and the composition of atmospheric gases.

Environmental changes that affect distribution may be of which three kinds?

Seasonal, geographic, or caused by human interaction.

What is meant by the distribution of a species?

Where the species is found within an ecosystem or area.

Why might a species be found in a habitat during only part of the year?

Seasonal changes, such as temperature or food availability, cause it to migrate to or from the area.

True or false? Environmental change always reduces the distribution of a species.

False. A change can also increase a species' distribution or allow it to spread into new areas.

True or false? A change in the composition of atmospheric gases can change where a species is found.

True. Species differ in their sensitivity to gases such as carbon dioxide, oxygen and sulfur dioxide.