Patterns in the organization of Cerrado pond biodiversity in brazilian pasture landscapes

De Marco Jr., Paulo (Laboratório de Ecologia Teórica et Síntese, ICB, Universidade Federal de Goías, Goías, Brazil) ; Nogueira, Denis Silva (ICB, Universidade Federal de Goías, Goías, Brazil) ; Correa, Caroline Costa (ICB, Universidade Federal de Goías, Goías, Brazil) ; Vieira, Thiago Bernardi (ICB, Universidade Federal de Goías, Goías, Brazil) ; Silva, Karina Dias (ICB, Universidade Federal de Goías, Goías, Brazil) ; Pinto, Nelson Silva (ICB, Universidade Federal de Goías, Goías, Brazil) ; Bichsel, David (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland) ; Hirota, Andrezza Sayuri Victoriano (ICB, Universidade Federal de Goías, Goías, Brazil) ; Vieira, Raísa Romênia Silva (ICB, Universidade Federal de Goías, Goías, Brazil) ; Carneiro, Fernanda Mela (Universidade Estadual de Goiás, Goias, Brazil) ; de Oliviera, Arthur A. Bispo (ICB, Universidade Federal de Goías, Goías, Brazil) ; Carvalho, Priscilla (ICB, Universidade Federal de Goías, Goías, Brazil) ; Bastos, Rogério Pereira (ICB, Universidade Federal de Goías, Goías, Brazil) ; Ilg, Christiane (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland) ; Oertli, Beat (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland)

There is a worldwide concern on the loss of pond biodiversity in human dominated landscapes. Nevertheless, agricultural activities appear to increase pond number in the Brazilian Cerrado through damming streams for cattle raising. These man-made ponds may represent important landscape features, but their importance to regional biodiversity has not yet been studied. Here, we evaluated differences in alpha and beta diversity under a multi-taxonomic approach, as well as tested pond size as the main driver of local species richness. We also assessed the importance of environmental heterogeneity through the analysis of the regional species accumulation curves (SAC). The overall result suggests that species turnover was the major component of regional biodiversity for all groups. Major physical and chemical water conditions had no effects on algae, macrophytes, water bugs, and birds species richness. Pond size had a significant effect on Odonata and fish species richness, while water beetles and amphibians were influenced by trophic conditions. Results from regional SAC show variations among different taxonomic groups regarding landscape heterogeneity: only algae, fish, and birds do not reached to an asymptote and had higher z-values. Our results highlight the importance of ponds for biodiversity conservation in increasingly agricultural landscapes in central Brazil.


Article Type:
scientifique
Faculty:
Ingénierie et Architecture
School:
HEPIA - Genève
Institute:
inTNE - Institut Terre-Nature-Environnement
Date:
2013-10
Pagination:
15 p.
Published in:
Hydrobiologia
Numeration (vol. no.):
2014, vol. 728, pp. 87-101
DOI:
ISSN:
0018-8158
Appears in Collection:

Note: The status of this file is: restricted


 Record created 2020-08-13, last modified 2020-10-27

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