[1]¿p#1
Investigating the movement of free-ranging rural dogs (Canis familiaris)
in an area of the Cerrado hotspot, brazil
Abstract
The impacts of free-ranging rural dogs on wildlife conservation,
including predation and disease transmission, vary by context,
highlighting the need to assess their specific effects. This study
examines the home range and native habitat use of dogs within a
protected area and fragments of the Cerrado biome. We monitored 105 dogs
using GPS collars over two months. Home ranges were estimated using the
95% autocorrelated kernel density estimate (AKDE), with influential
variables analysed through general linear models (GLM). We assessed the
number of GPS locations within native habitats for each dog and
performed multiple ordinal regression to identify associated variables.
Most dogs exhibited restricted home ranges (mean = 30.74 ha, range =
0.89–624.75 ha), with larger ranges correlated to dogs accompanying
owners in daily activities. Dogs primarily occupied farming areas and
human settlements, with only 4% of their locations recorded in native
habitats; use of these areas was associated with lower body condition
scores. The likely ecological impact of these dogs stems more from their
high density in the matrix, which could reduce habitat connectivity. Dog
movement patterns are strongly influenced by the socio-environmental
contexts in which they live. These findings facilitate the development
of targeted management strategies aimed at specific local contexts,
reducing impacts on biodiversity and promoting animal welfare.