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September 12, 2025Canadian Journal of Zoology

Recolonization pattern of Wolves in Northern Apennines, Central Italy: A Bayesian Analysis Using Opportunistic and Systematic Data

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Authors

LPLuca PetroniLNLuca NatucciPFP. Fazzi

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Overview

Bayesian analysis reveals wolf recolonization patterns in the Apuan Alps, highlighting unique survey challenges.

Key Points

  • Wolf occupancy in the Apuan Alps increased 15-fold from 2011 to 2018, with breeding units rising from one to four by 2018.
  • Systematic sampling showed an estimated wolf occupancy of ~0.60 and detection probabilities threefold higher than opportunistic surveys.
  • Combining opportunistic playback surveys and camera-trap records revealed a two-phase pattern of recolonization, with initial lag followed by rapid expansion.
  • Opportunistic survey data, despite biases, provides valuable insights for managing and monitoring recolonizing large carnivores.

Cite This Study

Petroni et al. (2025) studied this question.

synapsesocial.com/papers/68d44c3431b076d99fa5529fhttps://doi.org/10.1139/cjz-2025-0010
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