Daily variation of zooplankton abundance and evenness in the Rosana reservoir, Brazil: biotic and abiotic inferences
| Autor: | Juliana Déo Dias, Erica Mayumi Takahashi, Fábio Amodêo Lansac-Tôha, Claudia Costa Bonecker |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Abiotic component
rotíferos Ecology microcrustáceos media_common.quotation_subject competição Species distribution coexistence Sampling (statistics) Biology microcrustaceans Zooplankton Competition (biology) Temporal variation rotifers Abundance (ecology) Variação temporal lcsh:Zoology Species evenness Animal Science and Zoology Spatial variability lcsh:QL1-991 competition coexistência media_common |
| Zdroj: | Iheringia: Série Zoologia, Vol 104, Iss 1, Pp 21-31 (2014) Iheringia. Série Zoologia v.104 n.1 2014 Iheringia. Série Zoologia Fundação Zoobotânica do Rio Grande do Sul (FZB/RS) instacron:FZB/RS |
| ISSN: | 0073-4721 |
| DOI: | 10.1590/1678-4766201410412131 |
| Popis: | The zooplankton community presents stochastic temporal fluctuation and heterogeneous spatial variation determined by the relationships among the organisms and environmental conditions. We predicted that the temporal and spatial zooplankton distribution is heterogeneous and discrete, respectively, and that the daily variation of most abundant species is related to environmental conditions, specifically the availability of resources. Zooplankton samples were collected daily at three sampling stations in a lateral arm of the Rosana Reservoir (SP/PR). The zooplankton did not present significant differences in abundance and evenness among sampling stations, but the temporal variation of these attributes was significant. Abiotic variables and algal resource availability have significantly explained the daily variation of the most abundant species (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|