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Data/hora: 16/06/2024 14:47:57

Metabolic Theory of Ecology and diversity of continental zooplankton in Brazil - doi: 10.4025/actascibiolsci.v34i1.9087
Provedor de dados: 3
Autores: Pinese, Olívia Penatti; Universidade Federal de Goiás - UFG; Cassemiro, Fernanda Aparecida da Silva; Universidade de Brasília - UnB; Pinese, José Fernando; Universidade Federal de Uberlândia - UFU; Diniz-Filho, José Alexandre Felizola; Universidade Federal de Goiás - UFG.
Several ecological hypotheses try to explain geographical patterns in biodiversity. The Metabolic Theory of Ecology (MTE) predicts that temperature is the main determinant of richness patterns for ectothermic organisms and that the relationship between richness (lnS) and temperature (1/kT) is a linear relationship with angular coefficient (b) near -0.65. This study tested the MTE for continental zooplankton diversity in 63 lakes in Brazil. Copepoda, Cladocera and Rotifera, as well as the three groups combined, showed different patterns from that predicted by MTE, with b values equal to 0.871, 0.516, 0.720 and 0.901, respectively. Temperature explains 12.7% of the richness of Copepoda, 5.3% of Cladocera, 6.7% of Rotifera, and 11.4% of all zooplankton groups...
Palavras-chave: 2.05.00.00-9 macroecology; Biodiversity; Copepoda; Cladocera; Rotífera; Temperature gradients.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9087

Concordance patterns in zooplankton assemblages in the UHE - Luís Eduardo Magalhães reservoir in the Mid-Tocantins river, Tocantins State, Brazil - doi: 10.4025/actascibiolsci.v33i2.7336
Provedor de dados: 3
Autores: Bessa, Gisele Fernandes; Universidade Federal do Tocantins; Vieira, Ludgero Cardoso Galli; Universidade de Brasília; Bini, Luis Mauricio; Universidade Federal do Goiás; Reis, Deusiano Florêncio dos; Universidade Federal do Tocantins; Morais, Paula Benevides de; Universidade Federal do Tocantins.
The goal of this study was to evaluate the concordance amongst three zooplankton groups (Rotifera, Cladocera, and Copepoda) and between the zooplankton groups and the environmental variables in the Luis Eduardo Magalhães reservoir, in the Mid-Tocantins River, Tocantins State, Brazil. Concordance patterns were found in relation to environmental variables, cladocerans, and rotifers, although values were relatively low. These results indicate that one should be cautious about the use of indicative taxonomic groups to detect environmental changes, where divergent results annul extrapolation possibilities and indicate the existence of distinct environmental factors controlling different groups.
Palavras-chave: 2.05.02.00-1 Concordance; Reservoir; Rotífera; Cladocera; Copepoda 2.05.02.00-1 Concordance; Reservoir; Rotífera; Cladocera; Copepoda.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/7336