Effects of ecological factors on the spatial distribution of food plants in the habitat of Hainan gibbons (Nomascus hainanus): Insights for conservation and habitat restoration

Understanding the availability of food resources is essential for effectively conserving endangered species. This study quantified the distribution of food plants within the Hainan gibbon habitat and assessed the environmental drivers of these distributions to guide targeted habitat restoration effo...

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Main Authors: Shuai Liu, Anan Zhang, Dexu Zhang, Yuan Chen, Guangyu Wang, Wenxing Long, Guang Feng, Hongcan Guan, Yanfei Sun
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Global Ecology and Conservation
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Online Access:http://www.sciencedirect.com/science/article/pii/S2351989425002069
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author Shuai Liu
Anan Zhang
Dexu Zhang
Yuan Chen
Guangyu Wang
Wenxing Long
Guang Feng
Hongcan Guan
Yanfei Sun
author_facet Shuai Liu
Anan Zhang
Dexu Zhang
Yuan Chen
Guangyu Wang
Wenxing Long
Guang Feng
Hongcan Guan
Yanfei Sun
author_sort Shuai Liu
collection DOAJ
description Understanding the availability of food resources is essential for effectively conserving endangered species. This study quantified the distribution of food plants within the Hainan gibbon habitat and assessed the environmental drivers of these distributions to guide targeted habitat restoration efforts. A total of 122 habitat plots were surveyed across five gibbon groups to collect the environment and food plant diversity data. Groups A to D occupied tropical montane rainforests (800–1200 m), while group E inhabited secondary lowland rainforests (500–700 m). Results revealed: 1) Climate and soil factors differed significantly between high- and low-altitude habitats. 2) Food plant species richness was higher in high-altitude habitats, while dry-season foods and preferred foods were more abundant in A and C groups. 3) Elevation, soil C/N ratio, soil alkaline dissolved nitrogen, and soil fast-acting phosphorus significantly affected food plant distribution. Soil content and climate are key drivers, with varying effects across different altitudes and food plant types. These findings indicate that successional low-altitude secondary forests are potential habitats for Hainan gibbons (e.g., group E) but require further restoration in lower quality areas. Our study highlights the need for habitat-specific restoration: in low-altitude forests, improving soil conditions (i.e., introducing native nitrogen-fixing species such as Albizia spp. to reduce C/N ratios and enhance alkaline dissolved nitrogen) can promote key food plant growth. In high-altitude forests, introducing climate-resilient species (e.g., Ficus spp.) can offset temperature and precipitation limitations. Such targeted actions are critical to ensuring food stability and supporting Hainan gibbon conservation.
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spelling doaj-art-bf7ad76a06a445c68740ebb83a4b28992025-08-20T03:13:08ZengElsevierGlobal Ecology and Conservation2351-98942025-08-0160e0360510.1016/j.gecco.2025.e03605Effects of ecological factors on the spatial distribution of food plants in the habitat of Hainan gibbons (Nomascus hainanus): Insights for conservation and habitat restorationShuai Liu0Anan Zhang1Dexu Zhang2Yuan Chen3Guangyu Wang4Wenxing Long5Guang Feng6Hongcan Guan7Yanfei Sun8School of Ecology - Hainan University, Haikou 570228, China; Faculty of Forestry - University of British Columbia, Vancouver, CanadaDalate Forestry and Grassland Bureau, Dalate 014300, ChinaSchool of Ecology - Hainan University, Haikou 570228, ChinaSchool of Tropical Agriculture and Forestry - Hainan University, Haikou 570228, ChinaFaculty of Forestry - University of British Columbia, Vancouver, CanadaSchool of Ecology - Hainan University, Haikou 570228, China; School of Tropical Agriculture and Forestry - Hainan University, Haikou 570228, China; Corresponding author at: School of Ecology - Hainan University, Haikou 570228, China.School of Tropical Agriculture and Forestry - Hainan University, Haikou 570228, ChinaSchool of Tropical Agriculture and Forestry - Hainan University, Haikou 570228, ChinaSchool of Tropical Agriculture and Forestry - Hainan University, Haikou 570228, China; Corresponding author.Understanding the availability of food resources is essential for effectively conserving endangered species. This study quantified the distribution of food plants within the Hainan gibbon habitat and assessed the environmental drivers of these distributions to guide targeted habitat restoration efforts. A total of 122 habitat plots were surveyed across five gibbon groups to collect the environment and food plant diversity data. Groups A to D occupied tropical montane rainforests (800–1200 m), while group E inhabited secondary lowland rainforests (500–700 m). Results revealed: 1) Climate and soil factors differed significantly between high- and low-altitude habitats. 2) Food plant species richness was higher in high-altitude habitats, while dry-season foods and preferred foods were more abundant in A and C groups. 3) Elevation, soil C/N ratio, soil alkaline dissolved nitrogen, and soil fast-acting phosphorus significantly affected food plant distribution. Soil content and climate are key drivers, with varying effects across different altitudes and food plant types. These findings indicate that successional low-altitude secondary forests are potential habitats for Hainan gibbons (e.g., group E) but require further restoration in lower quality areas. Our study highlights the need for habitat-specific restoration: in low-altitude forests, improving soil conditions (i.e., introducing native nitrogen-fixing species such as Albizia spp. to reduce C/N ratios and enhance alkaline dissolved nitrogen) can promote key food plant growth. In high-altitude forests, introducing climate-resilient species (e.g., Ficus spp.) can offset temperature and precipitation limitations. Such targeted actions are critical to ensuring food stability and supporting Hainan gibbon conservation.http://www.sciencedirect.com/science/article/pii/S2351989425002069Nomascus hainanusFood plantsSpatial distributionEcological characteristicsHabitat restoration
spellingShingle Shuai Liu
Anan Zhang
Dexu Zhang
Yuan Chen
Guangyu Wang
Wenxing Long
Guang Feng
Hongcan Guan
Yanfei Sun
Effects of ecological factors on the spatial distribution of food plants in the habitat of Hainan gibbons (Nomascus hainanus): Insights for conservation and habitat restoration
Global Ecology and Conservation
Nomascus hainanus
Food plants
Spatial distribution
Ecological characteristics
Habitat restoration
title Effects of ecological factors on the spatial distribution of food plants in the habitat of Hainan gibbons (Nomascus hainanus): Insights for conservation and habitat restoration
title_full Effects of ecological factors on the spatial distribution of food plants in the habitat of Hainan gibbons (Nomascus hainanus): Insights for conservation and habitat restoration
title_fullStr Effects of ecological factors on the spatial distribution of food plants in the habitat of Hainan gibbons (Nomascus hainanus): Insights for conservation and habitat restoration
title_full_unstemmed Effects of ecological factors on the spatial distribution of food plants in the habitat of Hainan gibbons (Nomascus hainanus): Insights for conservation and habitat restoration
title_short Effects of ecological factors on the spatial distribution of food plants in the habitat of Hainan gibbons (Nomascus hainanus): Insights for conservation and habitat restoration
title_sort effects of ecological factors on the spatial distribution of food plants in the habitat of hainan gibbons nomascus hainanus insights for conservation and habitat restoration
topic Nomascus hainanus
Food plants
Spatial distribution
Ecological characteristics
Habitat restoration
url http://www.sciencedirect.com/science/article/pii/S2351989425002069
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