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No. de sistema: 000012392

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008 _ _ 140930m20159999ne^br^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx-tb
044 _ _ a| ne
245 0 0 a| Differences in food web structure of mangroves and freshwater marshes
b| evidence from stable isotope studies in the Southern Gulf of Mexico
506 _ _ a| Disponible para usuarios de ECOSUR con su clave de acceso
520 1 _ a| Tropical coastal habitats like marshes, mangroves, and submerged grasses comprise diverse plant and animal communities and a certain degree of connectivity with other ecosystems. We compared the food web structure of a fringing mangrove-seagrass habitat and three fluvio-lagoons with marsh-eelgrass and mangrove-bare sediments during a dry season in Terminos Lagoon and Centla Wetlands, Southern Gulf of Mexico. Analysis of d13C and d15N stable isotopes in tissues of aquatic consumers, primary producers, and other carbon sources, in combination with isotope- based Bayesian methods, were performed to determine the main food sources and the isotopic niche of the consumers’ communities. Consumers in the man- grove-seagrass site showed high dependence on phytoplankton (average contribution 31 %), macroal- gae (20 %) and organic matter derived from seagrass- es (17 %). In the fluvio-lagoons, consumers showed high dependence on marginal vegetation (16–46 %). Phytoplankton and mangrove epiphytes comprised other important resources at these sites (with contri- butions of 24–44 %). The isotopic niche of consumers from the fringing mangrove-seagrass site did not overlap with those from the fluvio-lagoons. Moreover, despite the predominance of generalist consumers in all sites, differences in their isotopic niche area were observed, with consumers from the marsh-eelgrass site showing the narrowest. This suggests that con- sumer resource availability greatly differs in these habitats. Our results provide valuable information that help increase our understanding about the trophic structure in these important estuarine systems.
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Cadenas de alimentación (Ecología)
650 _ 4 a| Isotopos de carbono
650 _ 4 a| Isótopos del nitrógeno
650 _ 4 a| Relaciones tróficas
650 _ 4 a| Mangles
650 _ 4 a| Pastos marinos
651 _ 4 a| Área de Protección de Flora y Fauna Laguna de Términos (Campeche, México)
651 _ 4 a| Reserva de la Biosfera Pantanos de Centla (Tabasco, México)
700 1 _ a| Sepúlveda Lozada, Alejandra
700 1 _ a| Mendoza Carranza, Manuel
c| Dr.
e| coaut.
700 1 _ a| Wolff, Matthias
e| coaut.
700 1 _ a| Saint Paul, Ulrich
e| coaut.
700 1 _ a| Ponce Mendoza, Alejandro
e| coaut.
n| 7801331613
773 0 _
t| Wetlands Ecology and Management
g| Vol. 23, no. 2 (April 2015), p. 293-314
x| 1572-9834
900 _ _ a| Solicítelo con su bibliotecario/a
901 _ _ a| Artículo con arbitraje
902 _ _ a| GOG / MM
904 _ _ a| Septiembre 2014
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
905 _ _ a| Biblioelectrónica
906 _ _ a| Producción Académica ECOSUR
LNG eng
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*Solicítelo con su bibliotecario/a
Differences in food web structure of mangroves and freshwater marshes: evidence from stable isotope studies in the Southern Gulf of Mexico
Sepúlveda Lozada, Alejandra (autor)
Mendoza Carranza, Manuel (autor)
Wolff, Matthias (autor)
Saint Paul, Ulrich (autor)
Ponce Mendoza, Alejandro (autor)
Nota: Disponible para usuarios de ECOSUR con su clave de acceso
Contenido en: Wetlands Ecology and Management. Vol. 23, no. 2 (April 2015), p. 293-314. ISSN: 1572-9834
No. de sistema: 12392
Tipo: - Artículo con arbitraje
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Inglés

"Tropical coastal habitats like marshes, mangroves, and submerged grasses comprise diverse plant and animal communities and a certain degree of connectivity with other ecosystems. We compared the food web structure of a fringing mangrove-seagrass habitat and three fluvio-lagoons with marsh-eelgrass and mangrove-bare sediments during a dry season in Terminos Lagoon and Centla Wetlands, Southern Gulf of Mexico. Analysis of d13C and d15N stable isotopes in tissues of aquatic consumers, primary producers, and other carbon sources, in combination with isotope- based Bayesian methods, were performed to determine the main food sources and the isotopic niche of the consumers’ communities. Consumers in the man- grove-seagrass site showed high dependence on phytoplankton (average contribution 31 %), macroal- gae (20 %) and organic matter derived from seagrass- es (17 %). In the fluvio-lagoons, consumers showed high dependence on marginal vegetation (16–46 %). Phytoplankton and mangrove epiphytes comprised other important resources at these sites (with contri- butions of 24–44 %). The isotopic niche of consumers from the fringing mangrove-seagrass site did not overlap with those from the fluvio-lagoons. Moreover, despite the predominance of generalist consumers in all sites, differences in their isotopic niche area were observed, with consumers from the marsh-eelgrass site showing the narrowest. This suggests that con- sumer resource availability greatly differs in these habitats. Our results provide valuable information that help increase our understanding about the trophic structure in these important estuarine systems."


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