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- W2939708241 abstract "The mechanisms that structure species communities are still debated. We addressed this question for termite assemblages from tropical dry forests in Colombia. These forests are endangered and poorly understood ecosystems and termites are important ecosystem engineers in the tropics. Using biodiversity and environmental data, combined with phylogenetic community analyses, trait mapping, and stable isotopes studies, we investigated the termite community composition of three protected dry forests in Colombia. Our data suggest that the structuring mechanisms differed between sites. Phylogenetic overdispersion of termite assemblages correlated with decreasing rainfall and elevation and increasing temperature. Food niche traits—classified as feeding groups and quantified by δ15N‰ and δ13C‰ isotope signatures—were phylogenetically conserved. Hence, the overdispersion pattern implies increasing interspecific competition with decreasing drier and warmer conditions, which is also supported by fewer species occurring at the driest site. Our results are in line with a hypothesis that decreased biomass production limits resource availability for termites, which leads to competition. Along with this comes a diet shift: termites from drier plots had higher δ13C signatures, reflecting higher δ13C values in the litter and more C4 plants. Our study shows how a phylogenetic community approach combined with trait analyses can contribute to gaining the first insights into mechanisms structuring whole termite assemblages." @default.
- W2939708241 created "2019-04-25" @default.
- W2939708241 creator A5023641228 @default.
- W2939708241 creator A5038877508 @default.
- W2939708241 date "2019-04-10" @default.
- W2939708241 modified "2023-09-27" @default.
- W2939708241 title "Phylogenetic Community Structure and Niche Differentiation in Termites of the Tropical Dry Forests of Colombia" @default.
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- W2939708241 doi "https://doi.org/10.3390/insects10040103" @default.
- W2939708241 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6523111" @default.
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