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1. Correlates of fish and aquatic macrophyte beta diversity in the Upper Paraná River floodplain

Author:
Ceschin, Fernanda; Bini, Luis Mauricio; Padial, André Andrian
Source:
Hydrobiologia 2018 v.805 no.1 pp. 377-389
ISSN:
0018-8158
Subject:
community structure; dams (hydrology); ecosystems; fish; fish communities; floodplains; hydrology; introduced species; macrophytes; models; oligotrophication; rivers; species diversity; temporal variation; uncertainty
Abstract:
... We investigated correlates of long-term temporal variation in the beta diversity of macrophytes, sedentary fish, and migratory fish communities in the Upper Paraná River floodplain. Two metrics of among-site variation in community composition were calculated in up to 45 sampling periods over 12 years for each biological group. We then tested the following beta diversity correlates: richness and pr ...
DOI:
10.1007/s10750-017-3325-x

2. Phytoplankton response to experimental thermocline deepening: a mesocosm experiment

Author:
Selmeczy, Géza B.; Krienitz, Lothar; Casper, Peter; Padisák, Judit
Source:
Hydrobiologia 2018 v.805 no.1 pp. 259-271
ISSN:
0018-8158
Subject:
Planktothrix rubescens; climate change; community structure; ecosystems; lakes; models; phytoplankton; Germany
Abstract:
... A number of modelling results suggested thermocline shifts as a consequence of global climate change in stratifying lakes. Abundance and composition of the phytoplankton assemblage is strongly affected by the stratification patterns, and therefore, change in the thermocline position might have a substantial effect on this community or even on the whole lake ecosystem. In this study, thermocline de ...
DOI:
10.1007/s10750-017-3308-y