Journal ArticleDOI
Beta-diversity in temperate and tropical forests reflects dissimilar mechanisms of community assembly
Jonathan Myers,Jonathan M. Chase,Iván Jiménez,Peter M. Jørgensen,Alejandro Araujo-Murakami,Narel Y. Paniagua-Zambrana,Renate Seidel +6 more
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TLDR
It is suggested that biogeographical differences in the relative importance of different community assembly mechanisms contribute to these striking gradients in global biodiversity.Abstract:
Site-to-site variation in species composition (β-diversity) generally increases from low- to high-diversity regions. Although biogeographical differences in community assembly mechanisms may explain this pattern, random sampling effects can create this pattern through differences in regional species pools. Here, we compared assembly mechanisms between spatially extensive networks of temperate and tropical forest plots with highly divergent species pools (46 vs. 607 species). After controlling for sampling effects, β-diversity of woody plants was similar and higher than expected by chance in both forests, reflecting strong intraspecific aggregation. However, different mechanisms appeared to explain aggregation in the two forests. In the temperate forest, aggregation reflected stronger environmental correlations, suggesting an important role for species-sorting (e.g. environmental filtering) processes, whereas in the tropics, aggregation reflected stronger spatial correlations, more likely reflecting dispersal limitation. We suggest that biogeographical differences in the relative importance of different community assembly mechanisms contribute to these striking gradients in global biodiversity.read more
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Journal ArticleDOI
Stochastic Community Assembly: Does It Matter in Microbial Ecology?
TL;DR: Both stochastic and deterministic components embedded in various ecological processes, including selection, dispersal, diversification, and drift are described.
Journal ArticleDOI
β-Diversity, Community Assembly, and Ecosystem Functioning
TL;DR: It is highlighted here the crucial role of β-diversity - a hitherto underexplored facet of biodiversity - for a better process-level understanding of biodiversity change and its consequences for ecosystems.
Journal ArticleDOI
Global restoration opportunities in tropical rainforest landscapes
Pedro H. S. Brancalion,Aidin Niamir,Eben N. Broadbent,Renato Crouzeilles,Renato Crouzeilles,Renato Crouzeilles,Felipe S. M. Barros,Angelica M. Almeyda Zambrano,Alessandro Baccini,James Aronson,Scott J. Goetz,J. Leighton Reid,Bernardo B. N. Strassburg,Bernardo B. N. Strassburg,Bernardo B. N. Strassburg,Sarah Jane Wilson,Robin L. Chazdon +16 more
TL;DR: Assessment of socioenvironmental benefits and feasibility identifies priority areas for restoring global tropical rainforests to maximize the potential to mitigate anthropogenic impacts and improve human well-being.
Journal ArticleDOI
What Are Species Pools and When Are They Important
Howard V. Cornell,Susan Harrison +1 more
TL;DR: A regional species pool comprises all species available to colonize a focal site and allows ecologists to examine large-scale effects—including geographic area, evolutionary age, and immigration and diversification—on the diversity, composition, and phylogenetic structure of local communities.
Journal ArticleDOI
How pervasive is biotic homogenization in human‐modified tropical forest landscapes?
Ricardo R. C. Solar,Ricardo R. C. Solar,Jos Barlow,Jos Barlow,Joice Ferreira,Erika Berenguer,Alexander C. Lees,James Robertson Thomson,James Robertson Thomson,Julio Louzada,Julio Louzada,Márcia Motta Maués,Nárgila G. Moura,Victor H. F. Oliveira,Victor H. F. Oliveira,Júlio C M Chaul,José H. Schoereder,Ima Célia Guimarães Vieira,Ralph Charles Mac Nally,Toby A. Gardner,Toby A. Gardner +20 more
TL;DR: Concerns that β-diversity has been underestimated as a driver of biodiversity change are supported and underscore the importance of maintaining a distributed network of reserves, including remaining areas of undisturbed primary forest, but also disturbed and regenerating forests, to conserve regional biota.
References
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Journal ArticleDOI
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