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Article Reference Effects of flood pulses on persistence and variability of pleuston communities in a tropical floodplain lake
Large rivers in tropical regions can experience strong variations of abiotic factors owing to the occurrence of flood pulses. Both man-made and natural floods can cause pulses with varying intensity and duration. Here, we test the hypothesis that ostracod communities in the pleuston of floating plants are persistent during regular pulses and more variable during extreme floods. Ostracod communities were monitored in the Manezinho Backwater of the Upper Parana´ River floodplain (Brazil) for 83 months (seven hydrologic cycles). Flood pulses directly influenced the abiotic variables, which in turn were correlated with the species composition and abundance of ostracods. Variability in the species composition differentiated only between the limnophase of cycle 4 (L4: 2009) and the subsequent extreme flood of cycle 5 (P5: 2009–2010). The longer duration and higher intensity of the extreme flood can increase the exchange of organisms through the aquatic connections between the lake and the river and can potentially trigger the hatching of dry-resistant eggs, increasing variability in ostracod species composition. The absence of significant differences in the species composition variability between the other succeeding periods shows that these communities are persistent and buffered to the effects of natural pulses of short durations.
Located in Library / RBINS Staff Publications 2018
Article Reference Modern diatoms assemblages from Chilean tidal marshes and their application for quantifying deformation during past great earthquakes.
Located in Library / RBINS Staff Publications 2018
Article Reference Digital mapping of coastal boulders – High-resolution data acquisition to infer past and recent transport dynamics.
Located in Library / RBINS Staff Publications 2020
Article Reference Karst depressions – key archaeological environments of south Qatar
Located in Library / RBINS Staff Publications 2020
Article Reference Significance of boulder shape, shoreline configuration and pre-transport setting for the transport of boulders by tsunamis
Located in Library / RBINS Staff Publications 2020
Article Reference Palaeoenvironmental and sea sevel changes during the early to mid-Holocene in eastern Saudi Arabia and their implications for Neolithic populations
Located in Library / RBINS Staff Publications 2020
Article Reference Are car-bonate barrier islands mobile? Insights from a mid- to late-Holocene system, Al Ruwais, northern Qatar
Located in Library / RBINS Staff Publications 2020
Article Reference The Kasterlee Formation and its relation with the Diest and Mol Formations in the Belgian Campine
Located in Library / RBINS Staff Publications 2020
Article Reference Upper Oligocene lithostratigraphic units and the transition to the Miocene in North Belgium
Located in Library / RBINS Staff Publications 2020
Article Reference The post-mortem history of a bone revealed by its trace element signature: The case of a fossil whale rostrum
Located in Library / RBINS Staff Publications 2018