University of Oulu

Xia, Z., Heino, J., Liu, F., Yu, F., Xu, C., Hou, M., Zou, X., & Wang, J. (2022). Interspecific variations in fish occupancy and abundance are driven by niche characteristics in a monsoon climate river basin. Journal of Biogeography, 00, 1– 12. https://doi.org/10.1111/jbi.14502

Interspecific variations in fish occupancy and abundance are driven by niche characteristics in a monsoon climate river basin

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Author: Xia, Zhijun1,2; Heino, Jani3; Liu, Fei1;
Organizations: 1Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
2University of Chinese Academy of Sciences, Beijing, China
3Geography Research Unit, University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2022101762187
Language: English
Published: John Wiley & Sons, 2022
Publish Date: 2023-10-12
Description:

Abstract

Aim: The interspecific relationships between species occupancy and abundance have been broadly studied in terrestrial systems; however, the causes underlying this relationship in freshwater fishes remain poorly addressed. The main aims of this study were (a) to examine the occupancy–abundance relationship in 62 fish species in a monsoon climate river; (b) to determine the relative importance of species niche, functional traits and phylogenetic relatedness in shaping the occupancy–abundance relationship.

Location: The Chishui River, the Yunnan-Guizhou Plateau and the Szechwan Basin, China.

Taxon: Freshwater fishes.

Methods: A linear model was used to test the relationship between distribution and mean abundance across fish species. The outlying mean index analysis was performed to estimate niche breadth and niche position parameters for each fish species. In addition, using principal coordinates analysis, we created four trait vectors describing the similarity of species’ traits. Fish phylogeny was obtained from a global molecular phylogenetic tree of actinopterygian fishes. We used a combination of linear models, commonality analyses and boosted regression trees to evaluate the relative effects of the niche metrics, traits and phylogenetic relatedness on occupancy and abundance.

Results: Fish occupancy was strongly (R² = 0.749) and positively correlated with mean abundance in the Chishui River. Niche parameters, especially niche position, were the main determinants of variation in occupancy (e.g. total contribution of niche position and breadth using commonality analyses: 0.587 and 0.318) and abundance (0.323 and 0.151) across species. Furthermore, traits and phylogeny had little to no effect on fish occupancy (0.034 and 0.037) and abundance (0.021 and 0.003).

Main conclusions: Freshwater fishes in the Chishui River fit the common macroecological pattern of positive relationship between occupancy and abundance. Niche parameters, but not traits and phylogeny, are the primary correlates of riverine fish distribution and abundance.

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Series: Journal of biogeography
ISSN: 0305-0270
ISSN-E: 1365-2699
ISSN-L: 0305-0270
Volume: In press
DOI: 10.1111/jbi.14502
OADOI: https://oadoi.org/10.1111/jbi.14502
Type of Publication: A1 Journal article – refereed
Field of Science: 1171 Geosciences
1181 Ecology, evolutionary biology
Subjects:
Funding: This study was funded by grants from the National Key Research & Development Program of Yunnan Province (202203AC100001); the Biodiversity Survey and Assessment Project of the Ministry of Ecology and Environment, China (2019HJ2096001006); and the China Three Gorges Corporation (0799574).
Dataset Reference: Relevant datasets used in this study are available from the Science Data Bank repository (https://www.scidb.cn/s/QJbu2a).
  https://www.scidb.cn/s/QJbu2a
Copyright information: © 2022 John Wiley & Sons Ltd. This is the peer reviewed version of the following article: Xia, Z., Heino, J., Liu, F., Yu, F., Xu, C., Hou, M., Zou, X., & Wang, J. (2022). Interspecific variations in fish occupancy and abundance are driven by niche characteristics in a monsoon climate river basin. Journal of Biogeography, 00, 1– 12., which has been published in final form at https://doi.org/10.1111/jbi.14502. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.