Multiple dimensions of functional diversity affect stream fish taxonomic beta-diversity
| dc.contributor.author | Bower, Luke M. | en |
| dc.contributor.author | Stoczynski, Lauren | en |
| dc.contributor.author | Peoples, Brandon K. | en |
| dc.contributor.author | Patrick, Christopher J. | en |
| dc.contributor.author | Brown, Bryan L. | en |
| dc.date.accessioned | 2023-04-11T12:47:33Z | en |
| dc.date.available | 2023-04-11T12:47:33Z | en |
| dc.date.issued | 2023-03 | en |
| dc.description.abstract | When investigating metacommunity dynamics, functional differences among species are often assumed to be as important as environmental differences between sites in determining beta-diversity. However, few studies have examined the influence of functional diversity on beta-diversity. We examine the relative importance of regional functional diversity partitioned by niche dimensions and environmental variation in structuring taxonomic beta-diversity of stream fishes using a large dataset of stream fish assemblages (hereafter, simply beta-diversity). We predicted that both functional diversity and environmental variation play a role in determining beta-diversity. We tested this prediction by modelling the patterns of stream fish beta-diversity as a function of environmental variation, functional diversity and gamma-richness across 10,220 sites for 329 fish species using a series of conceptual path models. Environmental variation consistently affected beta-diversity across all models, whereas functional diversity and gamma-richness influenced beta-diversity only in some models. We show that including relevant trait differences among species in path models can improve their ability to explain beta-diversity, suggesting that functional traits influence beta-diversity. The ability of path models to explain beta-diversity varied depending on the trait grouping included in the model, demonstrating that specific path models representing different niche dimensions can improve the ability of a model to explain beta-diversity. In addition, parsing traits into different niche dimensions revealed alternative patterns of functional diversity-beta-diversity relationships that otherwise would have been missed. The selection of relevant traits and linked niche dimensions is critical for detecting relationships between functional diversity and beta-diversity. Using traits associated with different niche dimensions allows for the identification of niche dimensions most strongly associated with species sorting and the detection of patterns missed by focusing on a single niche dimension. Determining the niche dimensions that influence beta-diversity could provide insights into the processes driving biodiversity and metacommunity dynamics, improving our ability to conserve or restore aquatic communities. | en |
| dc.description.notes | First and foremost, we thank the numerous agency and university employees who contributed to the dataset. We thank T. Wagner and S. Midway for facilitating access to the fish dataset, and E. Frimpong for access to the FishTraits dataset. This work was supported in part by the USDA/NIFA, under project no. SC-1700599, and represents technical contribution no. 6994 of the Clemson Experiment Station. This material is based upon work supported by the National Science Foundation under project DEB-2017795. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. | en |
| dc.description.sponsorship | USDA/NIFA [SC-1700599]; National Science Foundation [DEB-2017795] | en |
| dc.description.version | Published version | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.doi | https://doi.org/10.1111/fwb.14036 | en |
| dc.identifier.eissn | 1365-2427 | en |
| dc.identifier.issue | 3 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/114463 | en |
| dc.identifier.volume | 68 | en |
| dc.language.iso | en | en |
| dc.publisher | Wiley | en |
| dc.rights | Creative Commons Attribution 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en |
| dc.subject | environmental variation | en |
| dc.subject | metacommunities | en |
| dc.subject | niche dimensions | en |
| dc.subject | species sorting | en |
| dc.subject | traits | en |
| dc.title | Multiple dimensions of functional diversity affect stream fish taxonomic beta-diversity | en |
| dc.title.serial | Freshwater Biology | en |
| dc.type | Article - Refereed | en |
| dc.type.dcmitype | Text | en |
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