edoc

Diversity partitioning confirms the importance of beta components in tropical rainforest Lepidoptera

Beck, Jan and Holloway, Jeremy D. and Chey, Vun Khen and Kitching Ian J., . (2012) Diversity partitioning confirms the importance of beta components in tropical rainforest Lepidoptera. The American naturalist, Vol. 180, H. 3 , S. E64-E74.

Full text not available from this repository.

Official URL: http://edoc.unibas.ch/dok/A6008485

Downloads: Statistics Overview

Abstract

Tropical beta diversity, and particularly that of herbivorous insects in rainforests, is often considered to be enormous, but this notion has recently been challenged. Because tropical beta diversity is highly relevant to our view on biodiversity, it is important to gain more insights and to resolve methodological problems that may lead to contradictions in different studies. We used data on two ecologically distinct moth families from Southeast Asia and analyzed separately the contribution of beta components to overall species richness at three spatial scales. Observed diversity partitions were compared under different types of null models. We found that alpha diversity was lower than expected on the basis of null models, whereas hierarchical beta components were larger than expected. Beta components played a significant role in shaping gamma diversity, and their contribution can be high (multiplicative beta <5). We found a reduction in beta components when comparing primary forests to agricultural sites (cf. “biotic homogenization”), but even in these habitats, beta components were still substantial. Our analyses show that beta components do play an important role in our data on tropical herbivorous insects and that these results are not attributable to lumping different habitats when sampling environmental gradients.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Ehemalige Einheiten Umweltwissenschaften > Biogeographie (Nagel)
UniBasel Contributors:Beck, Jan
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:University of Chicago Press
ISSN:0003-0147
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:14 Sep 2012 07:21
Deposited On:14 Sep 2012 07:13

Repository Staff Only: item control page