000079742 001__ 79742
000079742 005__ 20200117221646.0
000079742 0247_ $$2doi$$a10.1111/1365-2745.12935
000079742 0248_ $$2sideral$$a107100
000079742 037__ $$aART-2018-107100
000079742 041__ $$aeng
000079742 100__ $$aSaiz, Hugo
000079742 245__ $$aThe structure of plant spatial association networks is linked to plant diversity in global drylands
000079742 260__ $$c2018
000079742 5060_ $$aAccess copy available to the general public$$fUnrestricted
000079742 5203_ $$aDespite commonly used to unveil the complex structure of interactions within ecological communities and their value to assess their resilience against external disturbances, network analyses have seldom been applied in plant communities. We evaluated how plant–plant spatial association networks vary in global drylands and assessed whether network structure was related to plant diversity in these ecosystems. We surveyed 185 dryland ecosystems from all continents except Antarctica and built networks using the local spatial association between all the perennial plants species present in the communities studied. Then, for each network, we calculated four descriptors of network structure (link density, link weight mean and heterogeneity, and structural balance) and evaluated their significance with null models. Finally, we used structural equation models to evaluate how abiotic factors (including geography, topography, climate and soil conditions) and network descriptors influenced plant species richness and evenness. Plant networks were highly variable world-wide, but at most study sites (72%) presented common structures such as a higher link density than expected. We also find evidence of the presence of high structural balance in the networks studied. Moreover, all network descriptors considered had a positive and significant effect on plant diversity and on species richness in particular. Synthesis. Our results constitute the first empirical evidence showing the existence of common network architectures structuring dryland plant communities at the global scale and suggest a relationship between the structure of spatial networks and plant diversity. They also highlight the importance of system-level approaches to explain the diversity and structure of interactions in plant communities, two major drivers of terrestrial ecosystem functioning.
000079742 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FEDER/E19$$9info:eu-repo/grantAgreement/EC/FP7/242658/EU/Biotic community attributes and ecosystem functioning: implications for predicting and mitigating global change impacts/BIOCOM$$9info:eu-repo/grantAgreement/EC/H2020/647038/EU/Biological feedbacks and ecosystem resilience under global change: a new perspective on dryland desertification/BIODESERT$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 647038-BIODESERT$$9info:eu-repo/grantAgreement/ES/MINECO/FIS2014-55867-P$$9info:eu-repo/grantAgreement/ES/MINECO/FIS2015-71582-C2-1
000079742 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000079742 590__ $$a5.687$$b2018
000079742 591__ $$aPLANT SCIENCES$$b12 / 228 = 0.053$$c2018$$dQ1$$eT1
000079742 591__ $$aECOLOGY$$b16 / 164 = 0.098$$c2018$$dQ1$$eT1
000079742 592__ $$a2.764$$b2018
000079742 593__ $$aEcology$$c2018$$dQ1
000079742 593__ $$aPlant Science$$c2018$$dQ1
000079742 593__ $$aEcology, Evolution, Behavior and Systematics$$c2018$$dQ1
000079742 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000079742 700__ $$0(orcid)0000-0002-3484-6413$$aGómez-Gardeñes, Jesús$$uUniversidad de Zaragoza
000079742 700__ $$aBorda, Juan Pablo
000079742 700__ $$aMaestre, Fernando T.
000079742 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000079742 773__ $$g106, 4 (2018), 1443-1453$$pJ. ecol.$$tJOURNAL OF ECOLOGY$$x0022-0477
000079742 8564_ $$s1223832$$uhttps://zaguan.unizar.es/record/79742/files/texto_completo.pdf$$yPostprint
000079742 8564_ $$s32012$$uhttps://zaguan.unizar.es/record/79742/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000079742 909CO $$ooai:zaguan.unizar.es:79742$$particulos$$pdriver
000079742 951__ $$a2020-01-17-22:07:01
000079742 980__ $$aARTICLE