Effects of seasonality and fish movement on tropical river food webs
Open accessAbstract
Tropical rivers and their associated floodplain habitats are dynamic habitat mosaics to which fishes are challenged to respond in an adaptive manner. Migratory fishes create linkages among food webs that are partitioned along a nested hierarchy of spatial scales. Such linkages are examined across a hierarchy of spatio‐temporal scales, ranging from small streams to entire drainage basins, for rivers in South America and Africa. Migratory herbivorous fishes originating from eutrophic, productive ecosystems may subsidize resident predators of oligotrophic river ecosystems, which may result in cascading direct and indirect Effects on other species in local food webs. Successful management of many of the most important stocks of tropical river fishes requires conceptual models of how fish movement influences food web structure and dynamics.
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z+ characids are common in floating meadows surrounded by forested floodplains.
“The z+ characids were small omnivores (e.g., Ctenobrycon [Eigenmann, 1908] and Moenkhausia [Eigenmann, 1903] spp.) common in floating meadows surrounded by forested floodplains (Winemiller & Jepsen, 1998; Zuanon et al., 2004).”
From Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River (2025) · cites this paper as Winemiller & Jepsen, 1998
In “Trophic Interactions in Relation to Aquatic Macrophytes,” the paper identifies Ctenobrycon spilurus as an omnivorous characiform fish that forages near aquatic vegetation. It says these fishes were most commonly captured in open water, however, and does not establish that they were common in floating meadows surrounded by forested floodplains or extend that description to Moenkhausia. (LLM, conf=0.85)
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Cites
Anadromous Fish as Keystone Species in Vertebrate Communities
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Grinstead, S., Arantes, C. C., Winemiller, K. O., Kelso‐Winemiller, L. C., de Oliveira, J. A., Petrere, M., & Freitas, C. E. C. (2025) · Conservation Biology · doi:10.1111/cobi.70110
Self-citation
- Authors
- Winemiller, K. O., & Jepsen, D. B.
- Affiliations
- Texas A&M University (US)
- ORCID
- Winemiller, K. O.
- Venue
- Journal of Fish Biology
- Publisher
- Wiley
- Published
- 1998-12
- Volume
- 53
- Issue
- sA
- Pages
- 267-296
- ISSN
- 0022-1112 (ISSN-L)
- 1095-8649
- OpenAlex
- W2144848202
- Cited by
- 508
- References
- 1
- Citations by year
- 2026: 21 · 2025: 26 · 2024: 23 · 2023: 13 · 2022: 23 · 2021: 26 · 2020: 13 · 2019: 29 · 2018: 27 · 2017: 30 · 2016: 32 · 2015: 22 · 2014: 23 · 2013: 23 · 2012: 22
- FWCI
- 2.66
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Fish Biology (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Nature and Landscape Conservation › Fish Ecology and Management Studies
- Physical Sciences › Environmental Science › Nature and Landscape Conservation › Fish biology, ecology, and behavior
- Physical Sciences › Environmental Science › Ecology › Isotope Analysis in Ecology
- Keywords
- fish migration, tropical rivers, floodplain habitats, food web structure, trophic cascades, herbivorous fish, predator-prey interactions, seasonal variation, spatio-temporal scales, fish movement, river management, South America, Africa
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