000165815 001__ 165815
000165815 005__ 20260114135812.0
000165815 0247_ $$2doi$$a10.1016/j.actao.2014.05.006
000165815 0248_ $$2sideral$$a147069
000165815 037__ $$aART-2014-147069
000165815 041__ $$aeng
000165815 100__ $$aSaiz, Hugo
000165815 245__ $$aEffect of livestock grazing in the partitions of a semiarid plant–plant spatial signed network
000165815 260__ $$c2014
000165815 5060_ $$aAccess copy available to the general public$$fUnrestricted
000165815 5203_ $$aIn recent times, network theory has become a useful tool to study the structure of the interactions in ecological communities. However, typically, these approaches focus on a particular kind of interaction while neglecting other possible interactions present in the ecosystem. Here, we present an ecological network for plant communities that consider simultaneously positive and negative interactions, which were derived from the spatial association and segregation between plant species. We employed this network to study the structure and the association strategies in a semiarid plant community of Cabo de Gata-Níjar Natural Park, SE Spain, and how they changed in 4 sites that differed in stocking rate. Association strategies were obtained from the partitions of the network, built based on a relaxed structural balance criterion. We found that grazing simplified the structure of the plant community. With increasing stocking rate species with no significant associations became dominant and the number of partitions decreased in the plant community. Independently of stocking rate, many species presented an associative strategy in the plant community because they benefit from the association to certain ‘nurse’ plants. These ‘nurses’ together with species that developed a segregating strategy, intervened in most of the interactions in the community. Ecological networks that combine links with different signs provide a new insight to analyze the structure of natural communities and identify the species which play a central role in them.
000165815 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/CGL2011-27259
000165815 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000165815 590__ $$a1.617$$b2014
000165815 591__ $$aECOLOGY$$b82 / 145 = 0.566$$c2014$$dQ3$$eT2
000165815 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000165815 700__ $$0(orcid)0000-0002-6227-861X$$aLópez Alados, Concepción
000165815 773__ $$g59 (2014), 18-25$$pActa oecol.$$tACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY$$x1146-609X
000165815 8564_ $$s555156$$uhttps://zaguan.unizar.es/record/165815/files/texto_completo.pdf$$yVersión publicada
000165815 8564_ $$s2714578$$uhttps://zaguan.unizar.es/record/165815/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000165815 909CO $$ooai:zaguan.unizar.es:165815$$particulos$$pdriver
000165815 951__ $$a2026-01-14-12:58:06
000165815 980__ $$aARTICLE