دورية أكاديمية
Soil resources and topography shape local tree community structure in tropical forests
| العنوان: | Soil resources and topography shape local tree community structure in tropical forests |
|---|---|
| المؤلفون: | Baldeck, Claire A., Harms, Kyle E., Yavitt, Joseph B., John, Robert, Turner, Benjamin L., Valencia, Renato, Navarrete, Hugo, Davies, Stuart J., Chuyong, George B., Kenfack, David, Thomas, Duncan W., Madawala, Sumedha, Gunatilleke, Nimal, Gunatilleke, Savitri, Bunyavejchewin, Sarayudh, Kiratiprayoon, Somboon, Yaacob, Adzmi, Nur Supardi, Mohd N., Dalling, James W. |
| المصدر: | Faculty Publications |
| بيانات النشر: | LSU Digital Commons |
| سنة النشر: | 2013 |
| المجموعة: | LSU Digital Commons (Louisiana State University) |
| مصطلحات موضوعية: | Beta diversity, Community structure, Dispersal, Soil, Topography, Tropical forest |
| الوصف: | Both habitat filtering and dispersal limitation influence the compositional structure of forest communities, but previous studies examining the relative contributions of these processes with variation partitioning have primarily used topography to represent the influence of the environment. Here, we bring together data on both topography and soil resource variation within eight large (24-50 ha) tropical forest plots, and use variation partitioning to decompose community compositional variation into fractions explained by spatial, soil resource and topographic variables. Both soil resources and topography account for significant and approximately equal variation in tree community composition (9-34% and 5-29%, respectively), and all environmental variables together explain 13-39% of compositional variation within a plot. A large fraction of variation (19-37%) was spatially structured, yet unexplained by the environment, suggesting an important role for dispersal processes and unmeasured environmental variables. For the majority of sites, adding soil resource variables to topography nearly doubled the inferred role of habitat filtering, accounting for variation in compositional structure that would previously have been attributable to dispersal. Our results, illustrated using a new graphical depiction of community structure within these plots, demonstrate the importance of small-scale environmental variation in shaping local community structure in diverse tropical forests around the globe. © 2012 The Author(s) Published by the Royal Society. All rights reserved. |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | unknown |
| العلاقة: | https://digitalcommons.lsu.edu/biosci_pubs/1540Test; https://digitalcommons.lsu.edu/context/biosci_pubs/article/2539/viewcontent/1540.pdfTest |
| DOI: | 10.1098/rspb.2012.2532 |
| الإتاحة: | https://doi.org/10.1098/rspb.2012.2532Test https://digitalcommons.lsu.edu/biosci_pubs/1540Test https://digitalcommons.lsu.edu/context/biosci_pubs/article/2539/viewcontent/1540.pdfTest |
| رقم الانضمام: | edsbas.71E701F7 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1098/rspb.2012.2532 |
|---|