Scholarlink

<p>Understanding how wild species utilize their resources is crucial for designing protected natural areas. Using the dynamic Brownian bridge motion model (DBBMM), this study employed satellite telemetry to calculate and analyze the home ranges and core areas of black bear individuals in Mexico. Various environmental factors (such as altitude, vegetation cover, the modified soil adjusted vegetation index, and distance to water bodies) and anthropogenic variables (including distance to primary and secondary roads and the human modification index) were examined to describe the bears’ home ranges. The average home range estimated using MCP was greater in females (245.3 ± 355.0 km<sup>2</sup>) than in males (130.7 ± 149.3 km<sup>2</sup>), although there were no significant differences, with the 95% DBBMM (females, 68.5 ± 61.3 km<sup>2</sup>; males, 69.4 ± 117 km<sup>2</sup>; W = 20, <i>p</i> = 0.65). In contrast, the 50% DBBMM showed a tendency toward higher values in females (4.73 ± 1.12 km<sup>2</sup>) than in males (3.05 ± 4.8 km<sup>2</sup>), but without statistical significance. The generalized linear models revealed that for females and males, proximity to bodies of water influences the selection of core areas, as does proximity to primary roads. Females also use sites with low human modification, and vegetation was not a determining factor for either sex. This study provides insights into the environmental and anthropogenic variables that influence the establishment and size of core areas and home ranges of black bears in northern Mexico.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Spatial ecology of black bears (Ursus americanus) in northeastern Mexico: home ranges and habitat use

  • 期刊论文

  • 发表日期：

    2025年12月6日

查看全文
  • Zuleyma Zarco-González,
  • Rogelio Carrera-Treviño,
  • Ángel Balbuena-Serrano,
  • José L. García-Rivas,
  • Octavio Monroy-Vilchis

摘要

Understanding how wild species utilize their resources is crucial for designing protected natural areas. Using the dynamic Brownian bridge motion model (DBBMM), this study employed satellite telemetry to calculate and analyze the home ranges and core areas of black bear individuals in Mexico. Various environmental factors (such as altitude, vegetation cover, the modified soil adjusted vegetation index, and distance to water bodies) and anthropogenic variables (including distance to primary and secondary roads and the human modification index) were examined to describe the bears’ home ranges. The average home range estimated using MCP was greater in females (245.3 ± 355.0 km2) than in males (130.7 ± 149.3 km2), although there were no significant differences, with the 95% DBBMM (females, 68.5 ± 61.3 km2; males, 69.4 ± 117 km2; W = 20, p = 0.65). In contrast, the 50% DBBMM showed a tendency toward higher values in females (4.73 ± 1.12 km2) than in males (3.05 ± 4.8 km2), but without statistical significance. The generalized linear models revealed that for females and males, proximity to bodies of water influences the selection of core areas, as does proximity to primary roads. Females also use sites with low human modification, and vegetation was not a determining factor for either sex. This study provides insights into the environmental and anthropogenic variables that influence the establishment and size of core areas and home ranges of black bears in northern Mexico.