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Effect of Environmental and Temporal Factors on Patterns of Rarity of Ephemeroptera in Stream of the Brazilian Cerrado.
Brasil, L S; Juen, L; Giehl, N F S; Cabette, H S R.
Afiliación
  • Brasil LS; Programa de Pós-Graduação em Zoologia, Univ Federal do Pará / Museu Paraense Emílio Goeld, cx. Post. 08, Belém, PA, cep. 78690000, Brasil. brasil_biologia@hotmail.com.
  • Juen L; Programa de Pós-Graduação em Zoologia, Univ Federal do Pará / Museu Paraense Emílio Goeld, cx. Post. 08, Belém, PA, cep. 78690000, Brasil.
  • Giehl NF; Programa de Pós-Graduação em Ecologia e Conservação, Univ do Estado de Mato Grosso-UNEMAT, Nova Xavantina, MT, Brasil.
  • Cabette HS; Programa de Pós-Graduação em Ecologia e Conservação, Univ do Estado de Mato Grosso-UNEMAT, Nova Xavantina, MT, Brasil.
Neotrop Entomol ; 46(1): 29-35, 2017 Feb.
Article en En | MEDLINE | ID: mdl-27553721
Patterns of species' abundance and occurrence over time and space allow division of species into (i) common species, which are abundant, but have a low diversity, and (ii) rare species, which are far more diverse and less abundant. Understanding the relationships among these two species groups and how they are affected by environmental conditions is a major challenge for ecologists, especially considering the distinction between local environmental factors and regional factors and variations in abundance over the course of the year. In this study, we focused on the long-term relationship between the abundance of rare and common ephemeropterans and abiotic factors on local and regional scales. Our hypotheses are that common species will be affected primarily by regional environmental variables (i), whereas rare species will be influenced more by temporal variation (ii). Together, both local and regional abiotic variables, plus temporal variation, best explained the abundance of the common species, whereas temporal variation was the best predictor of rare species. Considering the theoretical aspects and the empirical evidence, we discuss the results based on the plasticity of the common species and the life cycle of the rare ones. We believe that our findings reinforce the need for the deconstruction of communities for a deeper understanding of their relationships with abiotic variables and, in particular, the specific aspects of these relationships in the context of the different guilds of the community.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Biodiversidad / Ephemeroptera Tipo de estudio: Prognostic_studies Límite: Animals País/Región como asunto: America do sul / Brasil Idioma: En Revista: Neotrop Entomol Asunto de la revista: BIOLOGIA Año: 2017 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Biodiversidad / Ephemeroptera Tipo de estudio: Prognostic_studies Límite: Animals País/Región como asunto: America do sul / Brasil Idioma: En Revista: Neotrop Entomol Asunto de la revista: BIOLOGIA Año: 2017 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos