Science / Biology / 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 interbreeding and producing viable, fertile offspring. The least inclusive taxonomic category commonly used.
Business / Agriculture / Exotic Species: A species that is not native to a region. MORE
Business / Agriculture / Invasive Species: Alien (non-native) species of plants, animals, and pests whose introduction causes or is likely to cause economic or environmental harm or harm to human health. Executive Order 13112, issued February MORE
Science / Marine Biology / Species Abundance: The total number of individual of a species within a given area or community. Compare species richness. MORE
Business / Agriculture / Threatened Species: Species listed by regulation under ESA, and are generally given a lower level of protection than endangered species. MORE
Science / Marine Biology / Fugitive Species: A species adapted to colonize newly disturbed habitats MORE