Limiting similarity, niche filtering and functional diversity in coastal lagoon fish communities

2007 ◽  
Vol 71 (3-4) ◽  
pp. 443-456 ◽  
Author(s):  
David Mouillot ◽  
Olivier Dumay ◽  
Jean Antoine Tomasini
2020 ◽  
Author(s):  
Giorgio Aglieri ◽  
Charles Baillie ◽  
Stefano Mariani ◽  
Carlo Cattano ◽  
Antonio Calò ◽  
...  

2019 ◽  
Vol 36 ◽  
pp. 1-12 ◽  
Author(s):  
Sandra Maria Hartz ◽  
Elise Amador Rocha ◽  
Fernanda Thiesen Brum ◽  
André Luís Luza ◽  
Taís de Fátima Ramos Guimarães ◽  
...  

In this study we investigated the influence of landscape variables on the alpha taxonomic and functional diversity of fish communities in coastal lakes. We built an analytical framework that included possible causal connections among variables, which we analyzed using path analysis. We obtained landscape metrics for the area, shape and connectivity (estuary connectivity and primary connectivity to neighboring lakes) of 37 coastal lakes in the Tramandaí River Basin. We collected fish data from 49 species using standardized sampling with gillnets and obtained a set of traits related to dispersal abilities and food acquisition. The model that best explained the taxonomic diversity and functional richness took into account the shape of the lakes. Functional richness was also explained by estuary connectivity. Functional evenness and dispersion were not predicted by area or connectivity, but they were influenced by the abundant freshwater species. This indicates that all lakes support most of the regional functional diversity. The results highlight the importance of the dispersal process in this lake system and allow the conclusion that considering multiple diversity dimensions can aid the conservation of local and regional fish communities.


2008 ◽  
Vol 76 (1) ◽  
pp. 57-68 ◽  
Author(s):  
Joaquim Ribeiro ◽  
Carlos C. Monteiro ◽  
Pedro Monteiro ◽  
Luis Bentes ◽  
Rui Coelho ◽  
...  

2018 ◽  
Vol 24 (11) ◽  
pp. 1612-1626 ◽  
Author(s):  
Karl A. Lamothe ◽  
Karen M. Alofs ◽  
Donald A. Jackson ◽  
Keith M. Somers

2013 ◽  
Vol 24 (1) ◽  
pp. 23-34 ◽  
Author(s):  
Lin Cheng ◽  
Simon Blanchet ◽  
Géraldine Loot ◽  
Sebastien Villéger ◽  
Tanglin Zhang ◽  
...  

2012 ◽  
Vol 21 (11) ◽  
pp. 1083-1095 ◽  
Author(s):  
Diana Schleuter ◽  
Martin Daufresne ◽  
Jacques Veslot ◽  
Norman W. H. Mason ◽  
Cédric Lanoiselée ◽  
...  

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Éva Ács ◽  
Angéla Földi ◽  
Csaba Ferenc Vad ◽  
Zsuzsa Trábert ◽  
Keve Tihamér Kiss ◽  
...  

Abstract The stress dominance hypothesis (SDH) postulates that strong environmental gradients drive trait convergence in communities over limiting similarity. Previous studies, conducted mostly with terrestrial plant communities, found controversial evidence for this prediction. We provide here the first test for SDH for epiphytic diatoms. We studied community assembly in diatom communities of astatic ponds. These water bodies serve as a good model system for testing SDH because they exhibit stress gradients of various environmental factors. Functional diversity of diatom communities was assessed based on four traits: (1) combined trait reflecting the trade-off between stress tolerance and competitive dominance, (2) cell size, (3) oxygen requirement and (4) N-uptake strategy. According to our results, salinity, pH and the width of the macrophyte belt appeared as significant predictors of the trait convergence/divergence patterns presumably acting through influencing the availability of carbon dioxide and turbidity. Lower trait diversity was found in turbid, more saline and more alkaline ponds and functional diversity was higher in transparent, less saline and less alkaline ponds. Overall, our results supported the stress dominance hypothesis. In habitats representing increased environmental stress, environmental filtering was the most important community assembly rule, while limiting similarity became dominant under more favourable conditions.


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