Demographic expansion of an African opportunistic carnivore during the Neolithic revolution.

Biol Lett

CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus de Vairão, 4485-661 Vairão, Portugal.

Published: January 2020

AI Article Synopsis

  • The spread of Neolithic technology and climate changes in the Holocene led to increased human settlements and pastoralism in North Africa, impacting ecosystems.
  • Researchers studied the demographic history of the African wolf to see if its population trends corresponded with increased food availability from Neolithic agriculture.
  • DNA analysis across Algeria and Tunisia revealed that the African wolf's population grew significantly during the same time domestic livestock expanded, supporting the link between agriculture and wolf population growth.

Article Abstract

The diffusion of Neolithic technology together with the Holocene Climatic Optimum fostered the spread of human settlements and pastoral activities in North Africa, resulting in profound and enduring consequences for the dynamics of species, communities and landscapes. Here, we investigate the demographic history of the African wolf (), a recently recognized canid species, to understand if demographic trends of this generalist and opportunistic carnivore reflect the increase in food availability that emerged after the arrival of the Neolithic economy in North Africa. We screened nuclear and mitochondrial DNA in samples collected throughout Algeria and Tunisia, and implemented coalescent approaches to estimate the variation of effective population sizes from present to ancestral time. We have found consistent evidence supporting the hypothesis that the African wolf population experienced a meaningful expansion concurring with a period of rapid population expansion of domesticates linked to the advent of agricultural practices.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7013491PMC
http://dx.doi.org/10.1098/rsbl.2019.0560DOI Listing

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