Habitat use by the island lemurs of Nosy Be, Madagascar,American Journal of Primatology

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 use by the island lemurs of Nosy Be, Madagascar
American Journal of Primatology ( IF 2.0 ) Pub Date : 2022-01-31 , DOI: 10.1002/ajp.23362
Jen Tinsman _{1,

2} , Sylviane Volampeno ₃ , Jessica Ganas-Swaray ₄ , Daniel Gann ₅ , Natacha Andrianirina _{1,

6} , Madison Chamizo ₁ , Claude Ralazampirenena _{1,

7} , Jean F Ranaivoarisoa ₆ , Hasina Ravaoarisoa _{1,

6} , Josie Rivero _{1,

8} , Andrew Zamora _{1,

9} , Cristina M Gomes ₁

Affiliation

Madagascar's lemurs are threatened by forest loss, fragmentation, and degradation. Many species use flexible behaviors to survive in degraded habitat, but their ability to persist in very small areas may be limited. Insular lemurs, like those found on Nosy Be, an island off the northwestern coast of Madagascar, are at heightened risk of sudden population declines and extirpation. Nosy Be is home to two Critically Endangered species—the endemic Nosy Be sportive lemur (Lepilemur tymerlachsoni) and Claire's mouse lemur (Microcebus mamiratra)—as well as the Endangered black lemur (Eulemur macaco). Most of the remaining forest on Nosy Be is protected by the 862-ha Lokobe National Park. To document how Nosy Be lemurs use their restricted habitat, we conducted vegetation and reconnaissance surveys on 53 transects in and around Lokobe. We collected data on tree size, canopy cover, understory visibility, and elevation for 248 lemur sightings. We used a spatially explicit, multi-species occupancy model to investigate which forest-structure variables are important to lemurs. Our results represent some of the first data on habitat use by insular lemurs. Black lemurs preferred significantly larger trees and areas with less dense understory. They also occurred significantly less outside of Lokobe National Park, even when accounting for sampling effort and geography. The distributions of the sportive and mouse lemurs were not related to the forest structure variables we documented, but they did negatively predict each other—perhaps because their habitat requirements differ. These results also underscore the importance of the national park to protecting the black lemur population on Nosy Be and raise questions about what factors do influence the distribution of Nosy Be's smaller lemurs. Close monitoring is needed to prevent these populations and the ecosystem services they provide from disappearing, as have other island lemurs.

中文翻译：

马达加斯加诺西贝岛狐猴的栖息地

马达加斯加的狐猴受到森林丧失、破碎化和退化的威胁。许多物种使用灵活的行为在退化的栖息地中生存，但它们在非常小的区域持续存在的能力可能会受到限制。岛屿狐猴，就像在马达加斯加西北海岸附近的诺西贝岛上发现的狐猴一样，面临人口突然减少和灭绝的高风险。诺西贝是两种极度濒危物种的家园——特有的诺西贝运动狐猴 ( Lepilemur tymerlachsoni ) 和克莱尔鼠狐猴 ( Microcebus mamiratra )——以及濒临灭绝的黑狐猴 ( Eulemur macaco)）。诺西贝岛上剩余的大部分森林都受到占地 862 公顷的洛科贝国家公园的保护。为了记录 Nosy Be 狐猴如何使用它们受限的栖息地，我们对 Lokobe 及其周围的 53 个样带进行了植被和侦察调查。我们收集了 248 只狐猴目击的树木大小、树冠覆盖、林下能见度和海拔的数据。我们使用空间明确的多物种占用模型来研究哪些森林结构变量对狐猴很重要。我们的结果代表了一些关于岛屿狐猴栖息地使用的首批数据。黑狐猴更喜欢大得多的树木和林下密度较低的地区。即使考虑到采样工作和地理位置，它们在洛科贝国家公园以外的发生率也明显减少。运动型狐猴和鼠狐猴的分布与我们记录的森林结构变量无关，但它们确实对彼此产生了负面预测——也许是因为它们的栖息地要求不同。这些结果也强调了国家公园对保护诺西贝黑狐猴种群的重要性，并提出了哪些因素会影响诺西贝小狐猴的分布的问题。与其他岛狐猴一样，需要密切监测以防止这些种群及其提供的生态系统服务消失。这些结果也强调了国家公园对保护诺西贝黑狐猴种群的重要性，并提出了哪些因素会影响诺西贝小狐猴的分布的问题。与其他岛狐猴一样，需要密切监测以防止这些种群及其提供的生态系统服务消失。这些结果也强调了国家公园对保护诺西贝黑狐猴种群的重要性，并提出了哪些因素会影响诺西贝小狐猴的分布的问题。与其他岛狐猴一样，需要密切监测以防止这些种群及其提供的生态系统服务消失。

更新日期：2022-01-31

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11