The role of functional uniqueness and spatial aggregation in explaining rarity in trees

TitleThe role of functional uniqueness and spatial aggregation in explaining rarity in trees
Publication TypeJournal Article
Year of Publication2017
AuthorsUmaña, MN, Mi, X, Cao, M, Enquist, B, Hao, Z, Howe, R, Iida, Y, Johnson, D, Lin, L, Liu, X, Ma, K, Sun, IF, Thompson, J, Uriarte, M, Wang, X, Wolf, A, Yang, J, Zimmerman, JK, Swenson, NG
JournalGlobal Ecology and Biogeography
Pagination1-10
Accession NumberLUQ.1341
KeywordsFunctional diversity, functional traits, species relative abundance, temperate forests, tree diversity, tropical forests
AbstractAim: Determining the drivers of species rarity is fundamental for understanding and conserving biodiversity. Rarity of a given species within its community may arise due to exclusion by other ecologically similar species. Conversely, rare species may occupy habitats that are rare in the landscape or they may be ill-suited to all available habitats. The first mechanism would lead to common and rare species occupying similar ecological space defined by functional traits. The second mechanism would result in common and rare species occupying dissimilar ecological space and spatial aggregation of rare species, either because they are specialists in rare habitats or because rare species tend to be dispersal limited. Here, we quantified the contribution of locally rare species to community functional richness and the spatial aggregation of species across tree communities world-wide to address these hypotheses.
DOI10.1111/geb.12583
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