Feeding habits and ecological role of the freshwater stingray Potamotrygon magdalenae (Duméril 1865) (Myliobatiformes: Potamotrygonidae), combining gut-content and stable isotope analysis

Understanding the ecological role of a species in an ecosystem and the dynamics of the communities depends largely on knowledge of the trophic relationships. We evaluated the feeding habits and the trophic ecology of the endemic Colombian stingray Potamotrygon magdalenae , integrating stomach conten...

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Veröffentlicht in:	Environmental biology of fishes 2019-08, Vol.102 (8), p.1119-1136
Hauptverfasser:	Márquez-Velásquez, Viviana, Rosa, Ricardo S., Galindo, Esteban, Navia, Andrés F.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal Systematics/Taxonomy/Biogeography Aquatic insects Artisanal fishing Biomedical and Life Sciences Content analysis Dams Diet Ecological monitoring Ecology Ecosystems Endemic species Environment Feeding Fish Fishing Food Food chains Food sources Food webs Foods Freshwater Freshwater & Marine Ecology Freshwater fishes Hydrology Inland water environment Life Sciences Marine fishes Nature Conservation Nematodes Niches Nitrogen isotopes Paraclinus magdalenae Potamotrygon magdalenae Rainy season River basins Rivers Seeds Stable isotopes Stomach Stomach content Trophic levels Trophic relationships Wet season Zoology
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