Terrestrial large mammals are threatened in West and Central Africa due to trade and consumption. The species population size was estimated using diurnal distance sampling in Old Oyo National Park, Nigeria. Mean species abundance and density ranged from 631 ± 281 to 3320 ± 1163 individuals and 2.0661 ± 1.356 to 6.7525 ± 3.0376 individuals km⁻² between sub-habitat types, and from 258 ± 125 to 2671 ± 867 individuals and 0.9526 ± 0.6801 to 5.1377 ± 1.8988 individual km⁻² between the ranges. Based on IUCN guidelines for local assessment, we classified 1 species as Vulnerable, 10 Near Threatened and 1 Least Concern. Long-term population monitoring and education programmes are crucial.

中文翻译：

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西非保护区大型陆生哺乳动物的种群规模和保护状况

由于贸易和消费，西非和中非的陆地大型哺乳动物受到威胁。物种种群规模是通过尼日利亚老奥约国家公园的日距离采样估算的。亚生境类型之间的平均物种丰度和密度范围为 631 ± 281 至 3320 ± 1163 个体和 2.0661 ± 1.356 至 6.7525 ± 3.0376 个体 km ⁻²，以及 258 ± 125 至 2671 ± 867 个体和 0.9526 ± 0.6801 至 5.1377 ±范围之间有1.8988 个单独的 km ^{-2 。}根据 IUCN 当地评估指南，我们将 1 个物种列为易危物种，10 个物种列为近危物种，1 个物种为最不关注物种。长期人口监测和教育计划至关重要。