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dc.contributor.author
Melguizo Ruiz, Nereida
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dc.contributor.author
Jiménez Navarro, Gerardo
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De Mas, Eva
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Pato, Joaquina
dc.contributor.author
Scheu, Stefan
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Austin, Amy Theresa
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dc.contributor.author
Wise, David H.
dc.contributor.author
Moya Laraño, Jordi
dc.date.available
2021-02-10T04:07:29Z
dc.date.issued
2019-09-08
dc.identifier.citation
Melguizo Ruiz, Nereida; Jiménez Navarro, Gerardo; De Mas, Eva; Pato, Joaquina; Scheu, Stefan; et al.; Field exclusion of large soil predators impacts lower trophic levels and decreases leaf-litter decomposition in dry forests; Wiley Blackwell Publishing, Inc; Journal Of Animal Ecology; 89; 2; 8-9-2019; 334-346
dc.identifier.issn
0021-8790
dc.identifier.uri
http://hdl.handle.net/11336/125276
dc.description.abstract
Shifts in densities of apex predators may indirectly affect fundamental ecosystem processes, such as decomposition, by altering patterns of cascading effects propagating through lower trophic levels. These top–down effects may interact with anthropogenic impacts, such as climate change, in largely unknown ways. We investigated how changes in densities of large predatory arthropods in forest leaf‐litter communities altered lower trophic levels and litter decomposition. We conducted our experiment in soil communities that had experienced different levels of long‐term average precipitation. We hypothesized that altering abundances of apex predators would have stronger effects on soil communities inhabiting dry forests, due to lower secondary productivity and greater resource overexploitation by lower trophic levels compared to wet forests. We experimentally manipulated abundances of the largest arthropod predators (apex predators) in field mesocosms replicated in the leaf‐litter community of Iberian beech forests that differed in long‐term mean annual precipitation by 25% (three dry forests with MAP < 1,250 mm and four wet forests with MAP > 1,400 mm). After one year, we assessed abundances of soil fauna in lower trophic levels and indirect impacts on leaf‐litter decomposition using litter of understorey hazel, Corylus avellana. Reducing densities of large predators had a consistently negative effect on final abundances of the different trophic groups and several taxa within each group. Moreover, large predatory arthropods strongly impacted litter decomposition, and their effect interacted with the long‐term annual rainfall experienced by the soil community. In the dry forests, a 50% reduction in the densities of apex predators was associated with a 50% reduction in decomposition. In wet forests, the same reduction in densities of apex soil predators did not alter the rate of litter decomposition. Our results suggest that predators may facilitate lower trophic levels by indirectly reducing competition and resource overexploitation, cascading effects that may be more pronounced in drier forests where conditions have selected for greater competitive ability and more rapid resource utilization. These findings thus provide insights into the functioning of soil invertebrate communities and their role in decomposition, as well as potential consequences of soil community responses to climate change.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
APEX PREDATORS
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BODY SIZE
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CLIMATE CHANGE
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FIELD MESOCOSMS
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LEAF-LITTER DECOMPOSITION
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PRECIPITATION
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SOIL FOOD WEBS
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TOP–DOWN CONTROL
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Field exclusion of large soil predators impacts lower trophic levels and decreases leaf-litter decomposition in dry forests
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-12-15T14:16:53Z
dc.journal.volume
89
dc.journal.number
2
dc.journal.pagination
334-346
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Melguizo Ruiz, Nereida. Consejo Superior de Investigaciones Científicas. Estación Experimental de Zonas Aridas; España. Universidad de Oviedo. Facultad de Quimicas; España. Universidad de Porto. Facultad de Ciências. Centro de Investigação em Biodiversidade e Recursos Genéticos; Portugal
dc.description.fil
Fil: Jiménez Navarro, Gerardo. Consejo Superior de Investigaciones Científicas. Estación Experimental de Zonas Aridas; España. Universidad de Porto. Facultad de Ciências. Centro de Investigação em Biodiversidade e Recursos Genéticos; Portugal
dc.description.fil
Fil: De Mas, Eva. Consejo Superior de Investigaciones Científicas. Estación Experimental de Zonas Aridas; España
dc.description.fil
Fil: Pato, Joaquina. Universidad de Oviedo; España
dc.description.fil
Fil: Scheu, Stefan. Universität Göttingen; Alemania
dc.description.fil
Fil: Austin, Amy Theresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
dc.description.fil
Fil: Wise, David H.. University of Illinois; Estados Unidos
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Fil: Moya Laraño, Jordi. Consejo Superior de Investigaciones Científicas. Estación Experimental de Zonas Aridas; España
dc.journal.title
Journal Of Animal Ecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/1365-2656.13101
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/1365-2656.13101
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