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dc.contributor.authorSebastián-González, Esther
dc.contributor.authorMorales-Reyes, Zebensui
dc.contributor.authorBotella, Francisco
dc.contributor.authorNaves-Alegre, Lara
dc.contributor.authorPérez-García, Juan M.
dc.contributor.authorMateo-Tomás, Patricia
dc.contributor.authorOlea, Pedro P.
dc.contributor.authorMoleón, Marcos
dc.contributor.authorBarbosa, Jomar M.
dc.contributor.authorHiraldo, Fernando
dc.contributor.authorArrondo, Eneko
dc.contributor.authorDonázar, José Antonio
dc.contributor.authorCortés-Avizanda, Ainara
dc.contributor.authorSelva, Nuria
dc.contributor.authorLambertucci, Sergio A.
dc.contributor.authorBhattacharjee, Aishwarya
dc.contributor.authorBrewer, Alexis
dc.contributor.authorAbernethy, Erin
dc.contributor.authorTurner, Kelsey
dc.contributor.authorBeasley, James C.
dc.contributor.authorDeVault, Travis L.
dc.contributor.authorGerke, Hannah C.
dc.contributor.authorRhodes Jr, Olin E.
dc.contributor.authorOrdiz, Andres
dc.contributor.authorWikenros, Camilla
dc.contributor.authorZimmermann, Barbara
dc.contributor.authorWabakken, Petter
dc.contributor.authorWilmers, Christopher C.
dc.contributor.authorSmith, Justine A.
dc.contributor.authorKendall, Corinne J.
dc.contributor.authorOgada, Darcy
dc.contributor.authorFrehner, Ethan
dc.contributor.authorAllen, Maximilian L.
dc.contributor.authorWittmer, Heiko U.
dc.contributor.authorButler, James R.A.
dc.contributor.authordu Toit, Johan T.
dc.contributor.authorMargalida, Antoni
dc.contributor.authorOliva-Vidal, Pilar
dc.contributor.authorWilson, David
dc.contributor.authorJerina, Klemen
dc.contributor.authorKrofel, Miha
dc.contributor.authorKostecke, Rich
dc.contributor.authorInger, Richard
dc.contributor.authorPer, Esra
dc.contributor.authorAyhan, Yunus
dc.contributor.authorUlusoy, Hasan
dc.contributor.authorVural, Doğanay
dc.contributor.authorInagaki, Akino
dc.contributor.authorKoike, Shinsuke
dc.contributor.authorSamson, Arockianathan
dc.contributor.authorPerrig, Paula L.
dc.contributor.authorSpencer, Emma
dc.contributor.authorNewsome, Thomas M.
dc.contributor.authorHeurich, Marco
dc.contributor.authorAnadón, José D.
dc.contributor.authorBuechley, Evan R.
dc.contributor.authorSánchez-Zapata, José A.
dc.date.accessioned2021-07-05T11:59:42Z
dc.date.available2021-07-05T11:59:42Z
dc.date.created2021-01-04T16:35:14Z
dc.date.issued2020
dc.identifier.citationEcography. 2020, 43 (8), 1143-1155en_US
dc.identifier.issn0906-7590
dc.identifier.urihttps://hdl.handle.net/11250/2763406
dc.description.abstractThe 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.en_US
dc.language.isoengen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleNetwork structure of vertebrate scavenger assemblages at the global scale: drivers and ecosystem functioning implicationsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.source.pagenumber1143-1155en_US
dc.source.volume43en_US
dc.source.journalEcographyen_US
dc.source.issue8en_US
dc.identifier.doi10.1111/ecog.05083
dc.identifier.cristin1865106
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal