Ecology Vocabulary

An organism’s role in the ecosystem

• Keystone Species

• Niche

• Pioneer Species

Variety of forms of life in an area

• Species Richness

• Population

• Biodiversity

The number of species in a community

• Population

• Biodiversity

• Species Richness

Group of organisms of the same species which live in the same area and interbreed

• Population

• Species Richness

• Biodiversity

The study of interactions between organisms and the living 

     and nonliving components of their ecosystems

• Biology

• Ecology

• Genetics

Region characterized by climate & plant & animal 

    communities

• Habitat

• Climate

• Biome

Includes all of the living organisms on earth

• Biome

• Biosphere

• Pioneer Species

A community of organisms and their abiotic environment.

• Biome

• Habitat

• Ecosystem

Any organic material that has been produced in an ecosystem (the weight of all organic material)

• Biomass

• Permafrost

• Niche

Organisms that make organic molecules from inorganic molecules

• Producers

• Consumers

• Decomposers