Nestedness and successional trajectories of macroinvertebrate assemblages in man-made wetlands

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Mostra el registre parcial de l'element Ruhí i Vidal, Albert Boix Masafret, Dani Gascón Garcia, Stéphanie Sala Genoher, Jordi Quintana Pou, Xavier 2013
dc.identifier.issn 0029-8549 (versió paper)
dc.identifier.issn 1432-1939 (versió electrònica)
dc.description.abstract Current successional models, primarily those based on floral succession, propose several distinct trajectories based on the integration of two key hypotheses from succession theory: convergence versus divergence in species composition among successional sites, and progression towards versus deviation from a desired reference state. We applied this framework to faunal succession, including differential colonization between active and passive dispersers, and the nested patterns generated as a consequence of this peculiarity. Nine man-made wetlands located in three different areas, from 0-3 years from wetland creation, were assessed. In addition, 91 wetlands distributed throughout the region were used as references for natural macroinvertebrate communities. We predicted the following: (1) highly nested structures in pioneering assemblages will decrease to lower mid-term values due to a shift from active pioneering taxa to passive disperser ones; (2) passive idiosyncratic taxa will elicit divergent successional trajectories among areas; (3) the divergent trajectories will provoke lower local and higher regional diversity values in the mid-term assemblages than in pioneer assemblages. Our results were largely congruent with hypotheses (1) and (2), diverging from the anticipated patterns only in the case of the temporary wetlands area. However, overall diversity trends based on hypothesis (3) did not follow the expected pattern. The divergent successional trajectories did not compensate for regional biodiversity losses that occurred as a consequence of pioneering colonizer decline over time. Consequently, we suggest reconsidering wetland construction for mitigation purposes within mid-term time frames (≤3 years). Wetlands may not offset, within this temporal scenario, regional biodiversity loss because the ecosystem may not support idiosyncratic taxa from natural wetlands
dc.description.sponsorship We wish to thank the handling editor Dr. Pedro Peres-Neto, and two anonymous reviewers, for constructive suggestions that improved the manuscript. This study was funded by the Spanish Ministry of Science and Innovation (Project CGL2011-23907), and Albert Ruhi held a FPU doctoral fellowship from the Spanish Ministry of Education (AP2006-00807)
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Springer Verlag
dc.relation MICINN/PN 2012-2015/CGL2011-23907
dc.relation.isformatof Reproducció digital del document publicat a:
dc.relation.ispartof © Oecologia, 2013, vol. 171, núm. 2, p. 545-556
dc.relation.ispartofseries Articles publicats (D-CCAA)
dc.rights Tots els drets reservats
dc.subject Zones humides artificials
dc.subject Constructed wetlands
dc.subject Biodiversitat
dc.subject Biological diversity
dc.subject Crustacis
dc.subject Crustacea
dc.subject Insectes aquàtics
dc.subject Aquatic insects
dc.title Nestedness and successional trajectories of macroinvertebrate assemblages in man-made wetlands
dc.type info:eu-repo/semantics/article
dc.rights.accessRights info:eu-repo/semantics/closedAccess
dc.embargo.terms Cap
dc.type.version info:eu-repo/semantics/publishedVersion
dc.contributor.funder Ministerio de Ciencia e Innovación (Espanya)

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