Functional response of aquatic invertebrate communities along two natural stress gradients (water salinity and flow intermittence) in Mediterranean streams.

Suárez, M.L.; Sánchez-Montoya, M.M.; Gómez, R.; Arce Sánchez, María Isabel; Del Campo, R.; Vidal-Abarca Gutiérrez, María Rosario

Publication:
Functional response of aquatic invertebrate communities along two natural stress gradients (water salinity and flow intermittence) in Mediterranean streams.

dc.contributor.author	Suárez, M.L.
dc.contributor.author	Sánchez-Montoya, M.M.
dc.contributor.author	Gómez, R.
dc.contributor.author	Arce Sánchez, María Isabel
dc.contributor.author	Del Campo, R.
dc.contributor.author	Vidal-Abarca Gutiérrez, María Rosario
dc.contributor.department	Ecología e Hidrología
dc.date.accessioned	2021-03-22T10:21:19Z
dc.date.available	2021-03-22T10:21:19Z
dc.date.issued	2017
dc.description.abstract	Functional trait diversity can provide insight into ecosystem function beyond that provided by species diversity measures. The relationship between functional diversity and natural stressors has received less attention compared to anthropogenic stressors. In this study, we investigated how two natural stressors, water salinity and flow intermittence, affect functional richness and functional redundancy of aquatic invertebrate communities using seven biological traits and 39 modalities. For this purpose, we characterized these functional diversity measures in 22 Mediterranean streams with a gradient of natural salinity and flow intermittence. Our findings showed that both functional richness and functional redundancy decreased with increased stress by water salinity and flow intermittence for all the studied traits but more rapidly for the former, suggesting that water salinity is a stronger environmental stressor than flow intermittence. Our study also described an antagonistic interaction of the two study stressors, in which the net effect of both is less than the sum of their independent effects. This study emphasizes that in saline streams, characterized by lower functional richness and functional redundancy, the loss of any taxon can have a huge impact on community functioning. In particular, the functional singularity of saline intermittent streams makes them extremely sensitive to additional anthropogenic impacts. In the context of future global change scenarios, which predict higher flow intermittence and water salinity, this study gives a better understanding of the functional features of these types of ecosystems.	es
dc.format	application/pdf	es
dc.identifier.citation	Sciences (2017) 79:1–12
dc.identifier.doi	10.1007/s00027-016-0475-2
dc.identifier.issn	1015-1621
dc.identifier.uri	http://hdl.handle.net/10201/105357
dc.language	eng	es
dc.publisher	Springer	es
dc.relation	Nacional. Ministerio de Ciencia e Innovación. Subprograma de Proyectos de investigación fundamental no orientada. 2010. Efectos de la sequía y la salinidad sobre las comunidades de organismos acuáticos y la retención de nitrógeno en ríos intermitentes mediterráneos. Código: CGL2010-21458.	es
dc.rights	info:eu-repo/semantics/openAccess	es
dc.subject.other	CDU::5 - Ciencias puras y naturales::50 - Generalidades sobre las ciencias puras::504 - Ciencias del medio ambiente	es
dc.title	Functional response of aquatic invertebrate communities along two natural stress gradients (water salinity and flow intermittence) in Mediterranean streams.	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es