Impacts of environmental filters on functional redundancy in riparian vegetation

Bruno, Daniel; Gutiérrrez Cánovas, Cayetano; Sánchez Fernández, David; Velasco, Josefa; Nilsson, Christer

Publication:
Impacts of environmental filters on functional redundancy in riparian vegetation

dc.contributor.author	Bruno, Daniel
dc.contributor.author	Gutiérrrez Cánovas, Cayetano
dc.contributor.author	Sánchez Fernández, David
dc.contributor.author	Velasco, Josefa
dc.contributor.author	Nilsson, Christer
dc.contributor.department	Ecología e Hidrología
dc.date.accessioned	2025-01-28T15:49:40Z
dc.date.available	2025-01-28T15:49:40Z
dc.date.issued	2016-06
dc.description	© 2016 The Authors. Journal of Applied Ecology. © 2016 British Ecological Society. This document is the Published version of a Published Work that appeared in final form in Journal of Applied Ecology. To access the final edited and published work see https://doi.org/10.1111/1365-2664.12619	es
dc.description.abstract	Understanding and predicting ecosystem responses to multiple environmental pressures is a long-standing interest in ecology and environmental management. However, few studies have examined how the functional features of freshwater biological communities vary along multiple gradients of environmental stress. Furthermore, modelling these functional features for a whole river network constitutes a strong potential basis to improve ecosystem management. We explored how functional redundancy of biological communities (FR, a functional feature related to the stability, resistance and resilience of ecosystems) responds to single and multiple environmental filters. We compared these responses with those of functional richness, evenness and divergence. We used riparian vegetation of a Mediterranean basin, and three of the main environmental filters affecting freshwater communities in such regions, that is drought, flow regulation and agricultural intensity, thus considering the potential effect of natural environmental variability. We also assessed the predictability of FR and estimated it for the entire river network. We found that all functional measures decreased with increasing environmental filter intensity. However, FR was more sensitive to single and multiple environmental filters compared to other functional measures. The best-fitting model explained 59% of the FR variability and included agriculture, drought and flow regulation and the pairwise interactions of agriculture with drought and flow regulation. The parameters of the FR models differed from null model expectations reflecting a non-random decline along stress gradients. Synthesis and applications. We found non-random detrimental effects along environmental filters' gradients for riparian functional redundancy (the most sensitive functional index), meaning that increased stress could jeopardize stability, resistance and resilience of these systems. In general, agriculture caused the greatest impact on functional redundancy and functional diversity measures, being the most important stressor for riparian functionality in the study area. Temporary streams flowing through an agricultural, regulated basin had reduced values of functional redundancy, whereas the free-flowing medium-sized, perennial water courses flowing through unaltered sub-basins displayed higher values of functional redundancy and potentially greater stability against human impacts. All these findings along with the predicted basin-wide variation of functional redundancy can assist environmental managers in improving monitoring and ecosystem management.	es
dc.format	application/pdf	es
dc.format.extent	10	es
dc.identifier.citation	Journal of Applied Ecology, 2016, Vol. 53, Issue 3, pp. 846-855
dc.identifier.doi	https://doi.org/10.1111/1365-2664.12619
dc.identifier.issn	Print: 0021-8901
dc.identifier.issn	Electronic: 1365-2664
dc.identifier.uri	http://hdl.handle.net/10201/149476
dc.language	eng	es
dc.publisher	Wiley / British Ecological Society	es
dc.relation	D.B. and D.S.-F. were supported by a predoctoral (FPU) and postdoctoral grant (Juan de la Cierva programme), respectively, both from the Spanish Ministry of Economy and Competitiveness. Finally, C.G.-C. was supported by the MARS project (Managing Aquatic ecosystems and water resources under multiple stress), funded by the European Union under the 7th Framework Programme, contract no. 603378.	es
dc.relation.publisherversion	https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2664.12619	es
dc.rights.accessRights	info:eu-repo/semantics/restrictedAccess
dc.subject	Drought	es
dc.subject	Flow regulation	es
dc.subject	Functional diversity	es
dc.subject	Functional traits	es
dc.subject	Global change	es
dc.subject	Habitat filtering	es
dc.subject	Land use	es
dc.subject	Mediterranean rivers	es
dc.subject	Multiple stressors	es
dc.subject	Plant functional groups	es
dc.title	Impacts of environmental filters on functional redundancy in riparian vegetation	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es