Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/31781
metadata.artigo.dc.title: The trophic structure of fish communities from streams in the Brazilian Cerrado under different land uses: an approach using stable isotopes
metadata.artigo.dc.creator: Carvalho, Débora Reis de
Castro, Diego M. Parreira de
Callisto, Marcos
Moreira, Marcelo Zacharias
Pompeu, Paulo Santos
metadata.artigo.dc.subject: Carbon
Nitrogen
Food webs
Food resources
metadata.artigo.dc.publisher: Springer
metadata.artigo.dc.date.issued: Jul-2017
metadata.artigo.dc.identifier.citation: CARVALHO, D. R. de et al. The trophic structure of fish communities from streams in the Brazilian Cerrado under different land uses: an approach using stable isotopes. Hydrobiologia, [S.l.], v. 795, n. 1, p. 199-217, July 2017.
metadata.artigo.dc.description.abstract: The aim of this study was to evaluate how distinct land uses can alter the trophic structure of fish communities in streams. For this purpose, nine streams under the influence of three distinct land uses (pasture, sugarcane, and natural cover) were evaluated. The structure and isotopic niche of the fish communities were investigated by calculating descriptive community-wide metrics based on stable isotopes of δ13C and δ15N. The largest isotopic niche was observed in fish communities in pasture streams, and the smallest in sugarcane streams. Pasture streams exhibited greater ranges of carbon sources exploited by fishes, higher trophic diversity, and lower trophic redundancy. In contrast, sugarcane streams had greater ranges of nitrogen exploited by fishes and showed the smaller trophic diversity, higher trophic redundancy, and uniformity. Sugarcane was also the only land use that exerted a negative influence on community isotopic niche width. Natural cover streams in turn, showed lower trophic uniformity and exhibited intermediate values for all remaining metrics. We conclude that fish communities residing in streams influenced by pastures displayed characteristics that led to greater trophic diversity, and fish communities influenced by sugarcane plantations were more negatively affected by this land use.
metadata.artigo.dc.identifier.uri: https://link.springer.com/article/10.1007/s10750-017-3130-6
http://repositorio.ufla.br/jspui/handle/1/31781
metadata.artigo.dc.language: en_US
Appears in Collections:DBI - Artigos publicados em periódicos

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