Table 1

Definitions of community-related terms used in this paper

TermDefinitionReference(s)
CommunityA group of potentially interacting species that cooccur in space and time35
AssemblageA phylogenetically defined group of organisms that cooccur in space and time39
GuildGroups of organisms that cooccur in space and time and that share common resources39
RichnessNo. of taxonomic units (e.g., species) in a community, standardized to the no. of individuals sampled41
StructureNo. of taxonomic units (e.g., species) in a community as well as their relative abundancesThis paper
Inventory diversityDiversity within an environment43
Differentiation diversityTurnover in diversity between environments43
Alpha diversityAn inventory metric that expresses the amount of local diversity or diversity at the smallest spatial scale of analysis; gamma diversity is a similar metric used to refer to diversity at the regional scale35, 43
Beta diversityA differentiation diversity metric that refers to turnover at the landscape scale, i.e., turnover between local populations35, 43