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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Stochastic species loss and dispersal limitation drive patterns of spatial and temporal beta diversity of fish assemblages in tropical agroecosystem streams

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Author(s):
Zeni, Jaquelini O. [1, 2] ; Hoeinghaus, David J. [3, 4] ; Roa-Fuentes, Camilo A. [5] ; Casatti, Lilian [1]
Total Authors: 4
Affiliation:
[1] UNESP Sao Paulo State Univ, Dept Zool & Bot, 2265 Cristovao Colombo St, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
[2] UNESP Sao Paulo State Univ, Dept Ecol, 1515 24A Ave, BR-13506900 Rio Claro, SP - Brazil
[3] Univ North Texas, Dept Biol Sci, 1155 Union Circle 310559, Denton, TX 76203 - USA
[4] Univ North Texas, Adv Environm Res Inst, 1155 Union Circle 310559, Denton, TX 76203 - USA
[5] UPTC Univ Pedag & Tecnol Colombia, Escuela Ciencias Biol, Tunja, Boyaca - Colombia
Total Affiliations: 5
Document type: Journal article
Source: Hydrobiologia; v. 847, n. 18, SI JUL 2020.
Web of Science Citations: 0
Abstract

Beta diversity quantifies changes in assemblages among sites and can identify how anthropogenic changes affect species distributions patterns. We investigated how spatial and temporal beta diversity of fish assemblages responded to recent environmental changes within an established agroecosystem and investigated whether the observed pattern of spatial and temporal beta diversity was different from null expectations. Fish assemblages in 38 streams were sampled in 2003 and 2013, and local and regional variables were quantified in both periods. Species were classified into functional groups based on 15 ecomorphological traits. We tested for relationships between spatial and temporal patterns of beta diversity and its components (turnover and nestedness) and environmental distances and degree of changes over time, and for differences with null expectations. Spatial beta diversity was mostly due to turnover and remained relatively unchanged between periods. Spatial beta diversity was not different from randomness. Temporal beta diversity was lower than expected by null models and not correlated with environmental changes. Past environmental filters related to a long history of agricultural development homogenized habitats and fish assemblages by selecting for habitat-generalist species. In this context, contemporary fish assemblage dynamics in these streams are driven primarily by stochastic processes, likely stochastic local species loss. (AU)

FAPESP's process: 01/13340-7 - Evaluation of the biotic integrity of the rivers of the northwest region of the State of São Paulo, Alto Paraná basin, using communities of fish
Grantee:Lilian Casatti
Support Opportunities: BIOTA-FAPESP Program - Young Investigators Grants
FAPESP's process: 10/17494-8 - Terra firme stream fish from Rio Machado Basin, RO
Grantee:Lilian Casatti
Support Opportunities: Regular Research Grants
FAPESP's process: 15/04366-5 - Time and land-use change in an agricultural landscape: are there consequences to the functional diversity of tropical stream fish in a decade?
Grantee:Jaquelini de Oliveira Zeni
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 18/06033-1 - The role of current and historical factors on the patterns of fish beta diversity in agroecosystem streams
Grantee:Jaquelini de Oliveira Zeni
Support Opportunities: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 16/01535-3 - Taxonomic and functional diversity of the stream fish fauna in newly deforested watersheds
Grantee:Lilian Casatti
Support Opportunities: Regular Research Grants
FAPESP's process: 12/05983-0 - Taxonomic and functional diversity of the stream fish fauna in different agrosystems in the São Paulo State
Grantee:Lilian Casatti
Support Opportunities: Regular Research Grants
FAPESP's process: 12/20280-5 - Landscape changes in medium term: consequences for the composition, trophic structure and functional diversity of fish fauna in tropical streams.
Grantee:Jaquelini de Oliveira Zeni
Support Opportunities: Scholarships in Brazil - Doctorate