Related Words

Keystone Species: A predator at the top of a food web, or discrete subweb, capable of consuming organisms of more than one trophic level beneath it

Species Of Constituent: A classification depending upon the period of a constituent. The principal species are semidiurnal, diurnal, and long-period.

Species Diversity: The number of living species on Earth.

Species Abundance: The total number of individual of a species within a given area or community. Compare species richness.

Species Packing: The phenomenon in which present-day communities generally contain more species than earlier communities because organisms have evolved more adaptations over time.

Species: One or more populations of interbreeding or potentially interbreeding organisms that are reproductively isolated in nature from all other organisms. Populations of individuals capable of int . . . View Full Definition

Species Richness: The number of species present in a community.

Threatened Species: Species listed by regulation under ESA, and are generally given a lower level of protection than endangered species.

Yucca Root (Yucca species): Anti-inflammatory for arthritis.

Taking Endangered Or Threatened Species: Taking, in layman’s terms, means killing or removing a plant or animal of a species listed under the Endangered Species Act (ESA), or seriously damaging its chances of reproduction. Except u . . . View Full Definition