Convertino, M, Muneepeerakul, R, Azaele, S et al. (3 more authors) (2009) On neutral metacommunity patterns of river basins at different scales of aggregation. Water Resources Research, 45 (8). W08424. ISSN 0043-1397
Abstract
Neutral metacommunity models for spatial biodiversity patterns are implemented on river networks acting as ecological corridors at different resolution. Coarse-graining elevation fields (under the constraint of preserving the basin mean elevation) produce a set of reconfigured drainage networks. The hydrologic assumption made implies uniform runoff production such that each link has the same habitat capacity. Despite the universal scaling properties shown by river basins regardless of size, climate, vegetation, or exposed lithology, we find that species richness at local and regional scales exhibits resolution-dependent behavior. In addition, we investigate species-area relationships and rank-abundance patterns. The slopes of the species-area relationships, which are consistent over coarse-graining resolutions, match those found in real landscapes in the case of long-distance dispersal. The rank-abundance patterns are independent of the resolution over a broad range of dispersal length. Our results confirm that strong interactions occur between network structure and the dispersal of species and that under the assumption of neutral dynamics, these interactions produce resolution-dependent biodiversity patterns that diverge from expectations following from universal geomorphic scaling laws. Both in theoretical and in applied ecology studying how patterns change in resolution is relevant for understanding how ecological dynamics work in fragmented landscape and for sampling and biodiversity management campaigns, especially in consideration of climate change.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2009, American Geophysical Union. Reproduced in accordance with the publisher's self-archiving policy. Convertino, M, Muneepeerakul, R, Azaele, S, Bertuzzo, E, Rinaldo, A and Rodriguez-Iturbe, I (2009), On neutral metacommunity patterns of river basins at different scales of aggregation. Water Resources Research, 45 (8). W08424. 10.1029/2009WR007799. To view the published open abstract, go to http://dx.doi.org and enter the DOI |
Keywords: | Long-distance dispersal; landscape ecology; genetic-structure; species richness; plant community; seed dispersal; diversity; networks; vegetation; models |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mathematics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 21 May 2014 15:34 |
Last Modified: | 16 Jan 2018 09:06 |
Published Version: | http://dx.doi.org/10.1029/2009WR007799 |
Status: | Published |
Publisher: | American Geophysical Union |
Identification Number: | 10.1029/2009WR007799 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:78952 |