<p>Understanding how land use and land cover (LULC) influence avian communities is essential for their conservation, yet nocturnal bird communities remain poorly studied in the Afrotropics despite rapid habitats transformation. We assessed how different LULC types influence the richness, detection frequency and composition of nocturnal birds in and around the Amurum Forest Reserve, Nigeria, using Passive Acoustic Monitoring from November-December 2021 across 20 sampling points. Differences in richness and detection frequency were analysed across protection status and LULC types, while community composition was examined using ordination, ANOSIM, indicator species and SIMPER analyses. A total of 12 nocturnal species were recorded. Species richness was significantly higher in protected areas (F (₁, ₁₃₂) = 5.01, <i>P</i> = 0.025), particularly within the savannah (mean = 3.08; 95% CI: 2.62 − 3.55) and gallery forest (mean = 2.64; 95% CI: 2.16 − 3.09) of the reserve compared to residential areas (mean = 1.21; 95% CI: 0.80–1.62). Farmlands also supported considerable richness, suggesting their potential as supplementary habitats. Species-specific associations revealed that some taxa such as <i>Caprimulgus tristigma</i>, showed strong habitat preference to savannah and <i>Ketupa lactea</i> showed strong habitat preferences to gallery forest, others like <i>Bubo cinerascens</i> displayed ecological plasticity. Residential zones were negatively associated with nocturnal birds, likely due to habitat degradation, anthropogenic disturbance, and cultural persecution. These findings highlight the value of habitat heterogeneity and protected areas for conserving nocturnal avifauna and underscore the need for habitat protection, biodiversity-friendly agricultural practices, community engagement to dispel negative perceptions and long-term acoustic monitoring to guide adaptive management in Afrotropical ecosystems.</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

Conserving nocturnal birds in an Afrotropical landscape: the role of protected areas and habitat heterogeneity

  • Yitmwa Hope Joel,
  • Iniunam Aniefiok Iniunam,
  • Talatu Tende,
  • Danjuma Filibus Dami,
  • Ulf Ottosson,
  • Adams Adamanyiwa Chaskda

摘要

Understanding how land use and land cover (LULC) influence avian communities is essential for their conservation, yet nocturnal bird communities remain poorly studied in the Afrotropics despite rapid habitats transformation. We assessed how different LULC types influence the richness, detection frequency and composition of nocturnal birds in and around the Amurum Forest Reserve, Nigeria, using Passive Acoustic Monitoring from November-December 2021 across 20 sampling points. Differences in richness and detection frequency were analysed across protection status and LULC types, while community composition was examined using ordination, ANOSIM, indicator species and SIMPER analyses. A total of 12 nocturnal species were recorded. Species richness was significantly higher in protected areas (F (₁, ₁₃₂) = 5.01, P = 0.025), particularly within the savannah (mean = 3.08; 95% CI: 2.62 − 3.55) and gallery forest (mean = 2.64; 95% CI: 2.16 − 3.09) of the reserve compared to residential areas (mean = 1.21; 95% CI: 0.80–1.62). Farmlands also supported considerable richness, suggesting their potential as supplementary habitats. Species-specific associations revealed that some taxa such as Caprimulgus tristigma, showed strong habitat preference to savannah and Ketupa lactea showed strong habitat preferences to gallery forest, others like Bubo cinerascens displayed ecological plasticity. Residential zones were negatively associated with nocturnal birds, likely due to habitat degradation, anthropogenic disturbance, and cultural persecution. These findings highlight the value of habitat heterogeneity and protected areas for conserving nocturnal avifauna and underscore the need for habitat protection, biodiversity-friendly agricultural practices, community engagement to dispel negative perceptions and long-term acoustic monitoring to guide adaptive management in Afrotropical ecosystems.