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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Environmental correlates for tropical tree diversity and distribution patterns in Borneo: BIODIVERSITY RESEARCH
Diversity and Distributions, Volume 15, No. 3, Year 2009
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Description
Aim Identify environmental correlates for tropical tree diversity and composition. Location Borneo, Southeast Asia. Methods A GIS-environmental database with 5 arc minute (c. 10 × 10 km) resolution was combined with tree inventory data. Tree diversity, phylogenetic diversity (PD) and the two main compositional gradients were determined for 46 tree inventories. Akaike's information criterion and a data jackknifing procedure were used to select 50 explanatory models for diversity and composition gradients. The average of these models was used as our final diversity and compositional model. We applied Moran's I to detect spatial autocorrelation of residuals. Results Tree diversity, PD and the two main compositional gradients in Borneo were all significantly correlated with the environment. Tree diversity correlated negatively with elevation, soil depth, soil coarseness (texture) and organic carbon content, whereas it correlated positively with soil C:N ratio, soil pH, moisture storage capacity and annual rainfall. Tree PD was correlated positively with elevation and temperature seasonality and was largely determined by gymnosperms. However, angiosperm PD also correlated positive with elevation. Compositional patterns were strongly correlated with elevation but soil texture, cation-exchange-capacity, C:N ratio, C and N content and drainage were also important next to rainfall seasonality and El Niño Southern Oscillation drought impact. Main conclusions Although elevation is the most important correlate for diversity and compositional gradients in Borneo, significant additional variability is explained by soil characteristics (texture, carbon content, pH, depth, drainage and nutrient status) and climate (annual rainfall, rainfall seasonality and droughts). The identified environmental correlates for diversity and composition gradients correspond to those found in other tropical regions of the world. Differences between the regions are mainly formed by differences in the relative importance of the environmental variables in explaining diversity and compositional gradients. © 2009 Blackwell Publishing Ltd.
Authors & Co-Authors
Slik, Ferry
Unknown Affiliation
Raes, Niels
Netherlands, Leiden
Universiteit Leiden
Aiba, Shinichiro
Japan, Kagoshima
Kagoshima University
Brearley, Francis Q.
United Kingdom, Manchester
Manchester Metropolitan University
Cannon, Charles H.
United States, Lubbock
Texas Tech University
Meijaard, Erik
United States, Arlington
Nature Conservancy
Nagamasu, Hidetoshi
Japan, Kyoto
Kyoto University
Nilus, Reuben
Malaysia, Sandakan
Forest Research Centre - Sandakan
Paoli, Gary David
United States, Ann Arbor
University of Michigan, Ann Arbor
Poulsen, Axel Dalberg
Denmark, Copenhagen
Københavns Universitet
Sheil, Douglas
Indonesia, Bogor
Center for International Forestry Research, West Java
Suzuki, Eizi
Japan, Kagoshima
Kagoshima University
van Valkenburg, Johan Leonardus Cornelis Hendrikus S.
Netherlands, Wageningen
Wageningen University & Research
Webb, Campbell O.
United States, Washington, D.c.
Smithsonian Tropical Research Institute
United States, Cambridge
Harvard University
Wilkie, Peter
United Kingdom, Edinburgh
Royal Botanic Garden Edinburgh
Statistics
Citations: 88
Authors: 15
Affiliations: 15
Identifiers
Doi:
10.1111/j.1472-4642.2009.00557.x
ISSN:
14724642
Research Areas
Environmental