https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.7 2026-04-15T10:53:30.610Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/f42c849c-7113-4c69-a01e-52ebc5e7b44d COMMUNITY STRUCTURE Date=2026-02-18 User Id=system System Note=Added narrower relation from COMMUNITY STRUCTURE [f42c849c-7113-4c69-a01e-52ebc5e7b44d] to MICROSITE [b98834a1-72a4-47df-968c-1f6a6efc53f4] A community is a group of populations of plants and animals in a givenplace or an ecological unit used in a broad sense to include groups ofvarious sizes and degrees of integration. Community structure can refer tothe physical structure or to the biological structure of a community. Thephysical structure is what one sees when looking at a community. Forexample, in a forest, a primary structure is imposed by large trees, and asecondary structure is the understory trees and shrubs. Biologicalstructure involves species composition and abundance, temporal changes incommunities, and relationships between species in a community.