Your browser doesn't support javascript.
loading
Habitats and trophic relationships of Chironomidae insect larvae from the Sepotuba River basin, Pantanal of Mato Grosso, Brazil.
Butakka, C M M; Grzybkowska, M; Pinha, G D; Takeda, A M.
Afiliación
  • Butakka CM; Biodiversity and Etnobiology of Pantanal, Research Centre in Limnology, Cáceres, MT, Brazil.
  • Grzybkowska M; Department of Ecology and Vertebrate Zoology, University of Lodz, Lodz, Poland.
  • Pinha GD; Postgraduate Course in Continental Aquatic Environments, State University of Maringá ? UEM, Maringá, PR, Brazil.
  • Takeda AM; Nupelia, Department of Biology, National Council of Scientific and Technological Development, State University of Maringá ? UEM, Maringá, PR, Brazil.
Braz J Biol ; 74(2): 395-407, 2014 May.
Article en En | MEDLINE | ID: mdl-25166324
Benthic habitats are linked by physical processes and are essential elements in assessing of the distribution dynamics of Chironomidae dipteran insects and their role in aquatic ecosystems. This work presents results of distribution patterns of chironomids larvae in 38 sites that are abundant in the study site, inhabiting the substrate of the main river channel, rapids, tributary brook, floodplain lakes and reservoir along the Sepotuba River from its mouth at the Paraguay River to the headwater region. A total of 1,247 larvae was registered. The most abundant taxa were Polypedilum (Tripodura) sp. (25.2%), Cricotopus sp.3 (23.0%) and Tanytarsus sp. (15.0%). Fissimentum desiccatum were found only in the reservoir; Fissimentum sp.2 and Tanytarsus cf. T. obiriciae sp.2 in floodplain lakes, and Goeldichironomus sp. in the main channel. The low diversity of the sites S06 and S35 is caused by the near-exclusive presence of the species Cricotopus sp.3, alone or together with one or another taxon (Tanytarsus sp., Djalmabatista sp.3). Collectors-filterers represent 16%, collectors-gatherers 15%, predators 11% and scrapers only 1%. The predators dominated in the secondary channel (±88 ind/m2), corresponding to 40% of the total of this group. Cryptochironomus sp.2 (34%) and Ablasbemyia gr. annulata (26%) were the most abundant among the predators. The differences along the river course are decisive for the formation of distinct or discontinuous communities and the limits become obvious though the interrelations between the populations in the community, as for instance, competition for food and habitats.
Asunto(s)
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Chironomidae / Ecosistema Límite: Animals País/Región como asunto: America do sul / Brasil Idioma: En Revista: Braz J Biol Asunto de la revista: BIOLOGIA Año: 2014 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Chironomidae / Ecosistema Límite: Animals País/Región como asunto: America do sul / Brasil Idioma: En Revista: Braz J Biol Asunto de la revista: BIOLOGIA Año: 2014 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil