当前位置：
X-MOL 学术
›
Am. J. Primatol.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Habitat and ecological niche characteristics of the elusive Hairy-eared Dwarf Lemur (Allocebus trichotis) with updated occurrence and geographic range data
American Journal of Primatology ( IF 2.0 ) Pub Date : 2023-02-04 , DOI: 10.1002/ajp.23473 Dominik Schüßler 1 , Naina R Rabemananjara 2, 3 , Tahiriniaina Radriarimanga 2, 3 , Stephan M Rafamantanantsoa 2 , Roger D Randimbiharinirina 3 , Ute Radespiel 4 , Daniel Hending 5
American Journal of Primatology ( IF 2.0 ) Pub Date : 2023-02-04 , DOI: 10.1002/ajp.23473 Dominik Schüßler 1 , Naina R Rabemananjara 2, 3 , Tahiriniaina Radriarimanga 2, 3 , Stephan M Rafamantanantsoa 2 , Roger D Randimbiharinirina 3 , Ute Radespiel 4 , Daniel Hending 5
Affiliation
|
Ecological niche modeling (ENM) is particularly useful in the study of cryptic and elusive species that are only rarely seen, difficult to study in the wild, and simultaneously threatened by a multitude of anthropogenic factors. We collected presence records one such example, the understudied Hairy-eared Dwarf Lemur (Allocebus trichotis), from the literature and supplemented these with observations from surveys in previously unstudied areas to model its fundamental and realized niche throughout Madagascar. We further evaluated habitat characteristics at each sighting location to judge its conservation status and its adaptability toward habitat degradation. We found 31 presence localities in the literature and directly observed A. trichotis a further 23 times. According to the ENMs, precipitation of the driest quarter and maximum temperature of the warmest month mostly influenced its distribution, restricting it to the higher altitudes of the northeastern humid forests of Madagascar. Its fundamental niche, extent of occurrence, and area of occupancy were estimated as 65,819, 53,054, and 16,967 km² respectively. The latter, however, declined by 29.2% since 1990. On a habitat level, it was most often observed in primary forest habitats of different degradation stages (85.7%, n = 21). The fundamental niche of A. trichotis is most likely restricted by climatic factors. Although it can be found in moderately degraded forests, it is known to depend on the availability of tree holes and therefore old-growth forest structures. Ongoing deforestation and habitat fragmentation are likely to be the major threats to the survival of this species. Our ENMs provide evidence on where to intensify survey efforts on the elusive Hairy-eared Dwarf Lemurs of Madagascar.
中文翻译：
难以捉摸的毛耳矮狐猴 (Allocebus trichotis) 的栖息地和生态位特征以及最新的发生和地理范围数据
生态位模型 (ENM) 在研究神秘和难以捉摸的物种时特别有用，这些物种很少见，难以在野外研究，同时受到多种人为因素的威胁。我们从文献中收集了一个这样的例子的存在记录，即未被充分研究的毛耳侏儒狐猴 ( Allocebus trichotis )，并用之前未研究地区的调查观察结果对其进行补充，以模拟其在整个马达加斯加的基本和已实现的生态位。我们进一步评估了每个目击地点的栖息地特征，以判断其保护状况及其对栖息地退化的适应性。我们在文献中发现了 31 个存在地点，并直接观察到A. trichotis又增加了 23 次。根据 ENM，最干旱季度的降水量和最暖月的最高温度主要影响其分布，将其限制在马达加斯加东北部潮湿森林的较高海拔地区。其基本生态位、发生范围和占据面积估计分别为 65,819、53,054 和 16,967 平方公里。然而，后者自 1990 年以来下降了 29.2%。在栖息地水平上，最常见于不同退化阶段的原始森林栖息地 (85.7%，n = 21)。A. trichotis的基本生态位很可能受到气候因素的限制。虽然它可以在中度退化的森林中找到，但众所周知它依赖于树洞的可用性，因此依赖于古老的森林结构。持续的森林砍伐和栖息地破碎化可能是该物种生存的主要威胁。我们的 ENM 提供了关于在何处加强对马达加斯加难以捉摸的毛耳侏儒狐猴的调查工作的证据。
更新日期：2023-02-04
中文翻译：
难以捉摸的毛耳矮狐猴 (Allocebus trichotis) 的栖息地和生态位特征以及最新的发生和地理范围数据
生态位模型 (ENM) 在研究神秘和难以捉摸的物种时特别有用，这些物种很少见，难以在野外研究，同时受到多种人为因素的威胁。我们从文献中收集了一个这样的例子的存在记录，即未被充分研究的毛耳侏儒狐猴 ( Allocebus trichotis )，并用之前未研究地区的调查观察结果对其进行补充，以模拟其在整个马达加斯加的基本和已实现的生态位。我们进一步评估了每个目击地点的栖息地特征，以判断其保护状况及其对栖息地退化的适应性。我们在文献中发现了 31 个存在地点，并直接观察到A. trichotis又增加了 23 次。根据 ENM，最干旱季度的降水量和最暖月的最高温度主要影响其分布，将其限制在马达加斯加东北部潮湿森林的较高海拔地区。其基本生态位、发生范围和占据面积估计分别为 65,819、53,054 和 16,967 平方公里。然而，后者自 1990 年以来下降了 29.2%。在栖息地水平上，最常见于不同退化阶段的原始森林栖息地 (85.7%，n = 21)。A. trichotis的基本生态位很可能受到气候因素的限制。虽然它可以在中度退化的森林中找到，但众所周知它依赖于树洞的可用性，因此依赖于古老的森林结构。持续的森林砍伐和栖息地破碎化可能是该物种生存的主要威胁。我们的 ENM 提供了关于在何处加强对马达加斯加难以捉摸的毛耳侏儒狐猴的调查工作的证据。
京公网安备 11010802027423号