Assessment of Habitat Fragmentation and Corridors for an Isolated Subspecies of the Sichuan Golden Snub-Nosed Monkey, Rhinopithecus roxellana hubeiensis
| Autor: | Zhaoquan Zhu, Daxing Wang, Jingyuan Yang, Zhenhua Luo, Hao Mei, Yunhai Pu, Hua Wu, Huiliang Yu, Mian Zhao |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Rhinopithecus roxellana Habitat fragmentation biology Ecology 010604 marine biology & hydrobiology fungi Habitat conservation Endangered species biology.organism_classification 010603 evolutionary biology 01 natural sciences Habitat destruction Geography Habitat Animal ecology Animal Science and Zoology Ecology Evolution Behavior and Systematics Landscape connectivity |
| Zdroj: | International Journal of Primatology. 37:438-459 |
| ISSN: | 1573-8604 0164-0291 |
| DOI: | 10.1007/s10764-016-9910-4 |
| Popis: | Understanding habitat quality and landscape connectivity and exploring corridors connecting habitat patches are crucial for conservation, particularly for species distributed among isolated populations. The Sichuan golden snub-nosed monkey, Rhinopithecus roxellana, is an Endangered primate species endemic to mountainous forests in China. Its easternmost distribution lies in the Shennongjia area, which harbors an isolated subspecies, R. roxellana hubeiensis. Unfortunately, it has experienced significant habitat loss, fragmentation, and dramatic population decline in recent decades, primarily due to increased human disturbance. To quantify habitat quality, identify suitable habitat patches, and detect possible linkages among these patches for R. roxellana hubeiensis, we conducted habitat suitability assessments and landscape connectivity analyses in the Shennongjia area based on a set of environmental factors. We created a habitat quality model and a movement cost surface for the Shennongjia area based on a habitat suitability index, graph theory, expert knowledge, field experience, and information from the literature. Our results show that suitable habitat for R. roxellana hubeiensis in Shennongjia is fragmented and limited, and that this is particularly true for highly suitable habitats. We detected six core habitat patches and six least-cost paths and corridors. Our study does not provide accurate distributions of the monkeys and their habitat use. However, it identifies the most feasible and traversable habitats and corridors, which should be conservation priorities for this subspecies, and provides valuable guidance for reevaluating habitat conservation plans. |
| Databáze: | OpenAIRE |
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