000089813 001__ 89813
000089813 005__ 20220426091138.0
000089813 0247_ $$2doi$$a10.1111/ecog.05083
000089813 0248_ $$2sideral$$a118290
000089813 037__ $$aART-2020-118290
000089813 041__ $$aeng
000089813 100__ $$aSebastián-González, E.
000089813 245__ $$aNetwork structure of vertebrate scavenger assemblages at the global scale: drivers and ecosystem functioning implications
000089813 260__ $$c2020
000089813 5060_ $$aAccess copy available to the general public$$fUnrestricted
000089813 5203_ $$aThe organization of ecological assemblages has important implications for ecosystem functioning, but little is known about how scavenger communities organize at the global scale. Here, we test four hypotheses on the factors affecting the network structure of terrestrial vertebrate scavenger assemblages and its implications on ecosystem functioning. We expect scavenger assemblages to be more nested (i.e. structured): 1) in species-rich and productive regions, as nestedness has been linked to high competition for carrion resources, and 2) regions with low human impact, because the most efficient carrion consumers that promote nestedness are large vertebrate scavengers, which are especially sensitive to human persecution. 3) We also expect climatic conditions to affect assemblage structure, because some scavenger assemblages have been shown to be more nested in colder months. Finally, 4) we expect more organized assemblages to be more efficient in the consumption of the resource. We first analyzed the relationship between the nestedness of the scavenger assemblages and climatic variables (i.e. temperature, precipitation, temperature variability and precipitation variability), ecosystem productivity and biomass (i.e. NDVI) and degree of human impact (i.e. human footprint) using 53 study sites in 22 countries across five continents. Then, we related structure (i.e. nestedness) with its function (i.e. carrion consumption rate). We found a more nested structure for scavenger assemblages in regions with higher NDVI values and lower human footprint. Moreover, more organized assemblages were more efficient in the consumption of carrion. However, our results did not support the prediction that the structure of the scavenger assemblages is directly related to climate. Our findings suggest that the nested structure of vertebrate scavenger assemblages affects its functionality and is driven by anthropogenic disturbance and ecosystem productivity worldwide. Disarray of scavenger assemblage structure by anthropogenic disturbance may lead to decreases in functionality of the terrestrial ecosystems via loss of key species and trophic facilitation processes.
000089813 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000089813 590__ $$a5.992$$b2020
000089813 591__ $$aBIODIVERSITY CONSERVATION$$b5 / 60 = 0.083$$c2020$$dQ1$$eT1
000089813 591__ $$aECOLOGY$$b18 / 166 = 0.108$$c2020$$dQ1$$eT1
000089813 592__ $$a2.972$$b2020
000089813 593__ $$aEcology, Evolution, Behavior and Systematics$$c2020$$dQ1
000089813 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000089813 700__ $$aMorales-Reyes, Z.
000089813 700__ $$aBotella, F.
000089813 700__ $$aNaves-Alegre, L.
000089813 700__ $$aPérez-García, J.M.
000089813 700__ $$aMateo-Tomás, P.
000089813 700__ $$aOlea, P.P.
000089813 700__ $$aMoleón, M.
000089813 700__ $$aBarbosa, J.M.
000089813 700__ $$aHiraldo, F.
000089813 700__ $$aArrondo, E.
000089813 700__ $$aDonázar, J.A.
000089813 700__ $$aCortés-Avizanda, A.
000089813 700__ $$aSelva, N.
000089813 700__ $$aLambertucci, S.A.
000089813 700__ $$aBhattacharjee, A.
000089813 700__ $$aBrewer, A.L.
000089813 700__ $$aAbernethy, E.F.
000089813 700__ $$aTurner, K.L.
000089813 700__ $$aBeasley, J.C.
000089813 700__ $$aDeVault, T.L.
000089813 700__ $$aGerke, H.C.
000089813 700__ $$aRhodes, O.E.
000089813 700__ $$a, Jr.
000089813 700__ $$aOrdiz, A.
000089813 700__ $$aWikenros, C.
000089813 700__ $$aZimmermann, B.
000089813 700__ $$aWabakken, P.
000089813 700__ $$aWilmers, C.C.
000089813 700__ $$aSmith, J.A.
000089813 700__ $$aKendall, C.J.
000089813 700__ $$aOgada, D.
000089813 700__ $$aFrehner, E.
000089813 700__ $$aAllen, M.L.
000089813 700__ $$aWittmer, H.U.
000089813 700__ $$aButler, J.R.A.
000089813 700__ $$adu Toit, J.T.
000089813 700__ $$aMargalida, A.
000089813 700__ $$aOliva-Vidal, P.
000089813 700__ $$aWilson, D.
000089813 700__ $$aJerina, K.
000089813 700__ $$aKrofel, M.
000089813 700__ $$aKostecke, R.
000089813 700__ $$aInger, R.
000089813 700__ $$aPer, E.
000089813 700__ $$aAyhan, Y.
000089813 700__ $$aUlusoy, H.
000089813 700__ $$aVural, D.
000089813 700__ $$aInagaki, A.
000089813 700__ $$aKoike, S.
000089813 700__ $$aSamson, A.
000089813 700__ $$aPerrig, P.L.
000089813 700__ $$aSpencer, E.
000089813 700__ $$aNewsome, T.M.
000089813 700__ $$aHeurich, M.
000089813 700__ $$0(orcid)0000-0002-5038-5338$$aAnadón, J.D.$$uUniversidad de Zaragoza
000089813 700__ $$aBuechley, E.R.
000089813 700__ $$aSánchez-Zapata, J.A.
000089813 7102_ $$15011$$2220$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cÁrea Ecología
000089813 773__ $$g43, 8 (2020), 1143-1155$$pEcography$$tEcography$$x0906-7590
000089813 8564_ $$s310701$$uhttps://zaguan.unizar.es/record/89813/files/texto_completo.pdf$$yVersión publicada
000089813 8564_ $$s57652$$uhttps://zaguan.unizar.es/record/89813/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000089813 909CO $$ooai:zaguan.unizar.es:89813$$particulos$$pdriver
000089813 951__ $$a2022-04-26-08:54:48
000089813 980__ $$aARTICLE