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Title

Ecological Indicators 10:545-549 (2010)

AuthorsAngeler, D. G.; Álvarez Cobelas, Miguel ; Sánchez Carrillo, Salvador
KeywordsAnthropogenic stress
Dry phase
Impact assessment
Nutrient conditions
Propagule banks
Temporary wetlands
Rotifera
Issue Date7-Jul-2009
PublisherElsevier
CitationEcological Indicators 10:545-549 (2010)
AbstractIn this study we evaluated the usefulness of rotifer emergence from dry soils to indicate the environmental status of a remnant temporary pond complex in an agricultural area in central Spain. Because the ponds did not flood during our project, emergence was studied in relation to environmental variables in outdoor microcosms. Redundancy analysis and nestedness analysis showed that salinity and total nitrogen concentrations shaped the emerged communities. Depauperate rotifer assemblages from pond microcosms with higher salinity and nitrogen levels were nested subsets of species-rich communities from microcosms of less enriched sites. Rotifer community structure also identified small ponds as reference sites that should receive priority in conservation and degradation mitigation programs. Results suggest that rotifer emergence from rewetted sediments using microcosms can be useful for evaluating the nutrient status during the dry phase of temporary wetlands. While results from this approach are conservative, requiring comparisons with field observations, their tentative value lies in alerting management and providing a basis for future research of poorly studied but threatened temporary habitats. Rotifer emergence could be a useful alternative to traditional biological indicators of nutrient status that depend on the presence of water.
Description5 pages, figures, and tables statistics.
Publisher version (URL)http:10.1016/j.ecolind.2009.07.001
URIhttp://hdl.handle.net/10261/22174
DOI10.1016/j.ecolind.2009.07.001
ISSN1470-160X
Appears in Collections:(IRN) Artículos
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