Climatic Changes: Anthropogenic Influence or Naturally Induced Phenomenon

Foscolos, A.E.

doi:10.12681/bgsg.11157

Cited by 1 publication

(2 citation statements)

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“…For the last four decades, especially during the last one, the studies of the small mammal Late Quaternary fossil and recent assemblages from the Limay river basin (Northwestern Patagonia, Argentina) have strongly increased (e.g. Andrade, 2015;Cordero, 2011;Crivelli Montero et al, 1996, 2017Fernández et al, 2016Fernández et al, , 2018Guillermo et al, 2020aGuillermo et al, , 2020bGuillermo et al, , 2021Pardiñas, 1999;Pardiñas and Teta, 2013;Pearson, 1987;Pearson and Pearson, 1993;Silveira and Cordero, 2023;Tammone et al, 2014Tammone et al, , 2020Teta et al, 2005). The pool of taxonomic, taphonomic and paleoecological information about small rodents and marsupials recovered mostly from archeological contexts of the Limay river basin offers the opportunity to discuss the occurrence of periods of change and stability in the conformation of their communities through the Holocene and post-hispanic times, taken into account the main climatic events and the anthropic impact.…”

Section: Introductionmentioning

confidence: 99%

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Small mammal records from Limay river basin (Northwestern Patagonia) in the Anthropocene from a taphonomical and paleoecological perspective

Fernández,

Guillermo,

Cordero

et al. 2024

The Holocene

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The studies of the small mammal fossil and recent assemblages from the Limay river basin (Northwestern Patagonia) have strongly increased during the last decade. Taxonomic, taphonomic, and paleoecological information about small rodents and marsupials recovered from fossil sites offers the opportunity to discuss the periods of change and stability in the conformation of their communities through the Anthropocene. Here, we used two large data matrix of fossil and recent small mammal samples. As starting point, we considered the small mammal record of Epullán Grande cave (LL thereafter), which covers the Early Holocene/Post-hispanic Period, in order to assess the impact of anthropic activities on the small mammal communities during the Anthropocene. The taphonomic analysis performed on the newness samples from LL confirms the predatory activity of Tyto furcata on sigmodontines and human consumption on caviomorphs (mostly for the last ca. 1000 years). The analysis of manganese oxide staining suggested higher levels of moisture during the earliest formation of the LL sequence. The taxonomic results indicate a major diversity in the small mammal fossil assemblages to the later periods of LL and other fossil sequences of the Limay basin of the Anthropocene. Conversely, opportunistic sigmodontines ( Abrothrix olivacea, Calomys musculinus, Eligmodontia spp. and Oligoryzomys longicaudatus) experienced a growth in the recent samples. Some stenoic and specialist species ( Euneomys spp., Lestodelphys halli, Loxodontomys micropus and Reithrodon auritus) were abundant in the temporal units associated with the Anthropocene, but now are in retraction. Additionally, the drop in the diversity of recent assemblages supports a restructuration of small mammal communities from Limay river basin occurred in the 20th century.

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Section: Introductionmentioning

confidence: 99%

“…The effect of modern humans ( Homo sapiens ) on the Earth has been sharply discussed because the paleoclimatic and paleoenvironmental changes happened regardless of human existence on Earth, independently of atmospheric CO 2 concentrations and the use of hydrocarbons (e.g. Foscolos, 2017; Singer and Idso, 2009).…”

Section: Introductionmentioning

confidence: 99%