000165814 001__ 165814
000165814 005__ 20260114135812.0
000165814 0247_ $$2doi$$a10.1007/s11284-011-0818-3
000165814 0248_ $$2sideral$$a147065
000165814 037__ $$aART-2011-147065
000165814 041__ $$aeng
000165814 100__ $$aSaiz, Hugo
000165814 245__ $$aEffect of Stipa tenacissima L. on the structure of plant co-occurrence networks in a semi-arid community
000165814 260__ $$c2011
000165814 5203_ $$aNetwork approaches can increase our understanding of both changes in ecosystems and the role that individual species play in such changes. In ecology, networks have been applied mainly to the study of food webs and mutualistic interactions, with few studies on plant communities. This study used a network approach to examine a semi-arid plant community along a Stipa tenacissima abundance gradient at two locations in SE Spain: (1) an open shrub land where S. tenacissima is a highly competitive species, and (2) an alpha steppe where S. tenacissima forms the end stable successional community. In alpha steppe, the influence of slope was also examined. We detected that S. tenacissima influenced the network structuring process, and that network organization changed along the gradient. In open shrub land, when S. tenacissima became abundant, it dominated the community and other species disappeared. This resulted in a reduction of the number of links that S. tenacissima established. At the alpha-steppe, S. tenacissima coexists with other species, developing more links as it becomes more abundant. On gentle slope zones of alpha steppe, S. tenacissima is more competitive and becomes dominant for high abundance values, reducing its links with other species. The organization of networks varied similarly in both locations. When plant species reduce their abundance and number, links are more heterogeneously distributed in networks. This leads to a concentration of most of the links around a few species, particularly S. tenacissima, which is the most abundant in this case. We conclude that, in order to study plant communities, it is convenient to consider the properties of individual components together with the interaction between them.
000165814 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/CGL2008-0065
000165814 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000165814 590__ $$a1.565$$b2011
000165814 591__ $$aECOLOGY$$b81 / 133 = 0.609$$c2011$$dQ3$$eT2
000165814 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000165814 700__ $$0(orcid)0000-0002-6227-861X$$aLópez Alados, Concepción
000165814 773__ $$g26, 3 (2011), 595-603$$pEcol. res.$$tECOLOGICAL RESEARCH$$x0912-3814
000165814 8564_ $$s253149$$uhttps://zaguan.unizar.es/record/165814/files/texto_completo.pdf$$yVersión publicada
000165814 8564_ $$s2752073$$uhttps://zaguan.unizar.es/record/165814/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000165814 909CO $$ooai:zaguan.unizar.es:165814$$particulos$$pdriver
000165814 951__ $$a2026-01-14-12:46:20
000165814 980__ $$aARTICLE