Mostrar el registro sencillo del ítem
dc.contributor.author
Pires, Mathias Mistretta
dc.contributor.author
Rindel, Diego Damian
dc.contributor.author
Moscardi, Bruno Federico
dc.contributor.author
Cruz, Livia R.
dc.contributor.author
Guimaraes, Paulo Roberto
dc.contributor.author
dos Reis, Sergio F.
dc.contributor.author
Perez, Sergio Ivan
dc.date.available
2021-06-07T18:20:57Z
dc.date.issued
2020-12-15
dc.identifier.citation
Pires, Mathias Mistretta; Rindel, Diego Damian; Moscardi, Bruno Federico; Cruz, Livia R.; Guimaraes, Paulo Roberto; et al.; Before, during and after megafaunal extinctions: Human impact on Pleistocene-Holocene trophic networks in South Patagonia; Pergamon-Elsevier Science Ltd; Quaternary Science Reviews; 250; 106696; 15-12-2020; 1-11
dc.identifier.issn
0277-3791
dc.identifier.uri
http://hdl.handle.net/11336/133354
dc.description.abstract
Worldwide extinctions of large terrestrial vertebrates in the late Pleistocene provide insight on how humans reshape ecological communities. Understanding the ecological causes and consequences of megafaunal extinctions requires integrating approaches to reconstruct the ecological communities from the past. Here, we combined archeological and paleontological evidence with network analyses to understand the changes in ecological communities from late Pleistocene to the Holocene in South Patagonia, the last continental region where the encounter between humans and extinct megafauna occurred. The zooarcheological record suggests humans would have interacted mainly with large-bodied species, which comprise a small subset of the available prey. Accordingly, using network reconstructions and structural analyses, we found that human arrival would have produced minor changes in the overall structure of trophic networks. However, those few novel interactions established by humans would have created multiple indirect paths among megafaunal species. Indirect paths are the route for indirect effects such as competition and increase the vulnerability of interaction networks to perturbations. After the extinctions of most of the megafauna, the impoverished network became structurally simpler and densely connected. Our reconstructions of past trophic networks show that multiple indirect effects, potentially contributing to extinctions, can emerge even from a limited number of novel interactions and illustrate how network organization can affect and be affected by extinctions events.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ECOLOGICAL PALEOCOMMUNITIES
dc.subject
FAUNAL DIVERSITY
dc.subject
FOOD WEBS
dc.subject
HUMAN ARRIVAL
dc.subject
INDIRECT EFFECTS
dc.subject
LATE QUATERNARY EXTINCTIONS
dc.subject
SOUTHERN SOUTH AMERICA
dc.subject.classification
Arqueología
dc.subject.classification
Historia y Arqueología
dc.subject.classification
HUMANIDADES
dc.title
Before, during and after megafaunal extinctions: Human impact on Pleistocene-Holocene trophic networks in South Patagonia
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-06-04T17:04:34Z
dc.journal.volume
250
dc.journal.number
106696
dc.journal.pagination
1-11
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Pires, Mathias Mistretta. Universidade Estadual de Campinas; Brasil
dc.description.fil
Fil: Rindel, Diego Damian. Secretaría de Cultura de la Nación. Dirección Nacional de Cultura y Museos. Instituto Nacional de Antropología y Pensamiento Latinoamericano; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Moscardi, Bruno Federico. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Antropología; Argentina
dc.description.fil
Fil: Cruz, Livia R.. Universidade Estadual de Campinas; Brasil
dc.description.fil
Fil: Guimaraes, Paulo Roberto. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: dos Reis, Sergio F.. Universidade Estadual de Campinas; Brasil
dc.description.fil
Fil: Perez, Sergio Ivan. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Antropología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.journal.title
Quaternary Science Reviews
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.quascirev.2020.106696
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0277379120306582
Archivos asociados