We collected data on habitat use and locomotion of the François’langur(Trachypithecus francoisi)between August 2003 and July 2004 at Nonggang Nature Reserve,China.A total of 739 h of behavioral data were collect...We collected data on habitat use and locomotion of the François’langur(Trachypithecus francoisi)between August 2003 and July 2004 at Nonggang Nature Reserve,China.A total of 739 h of behavioral data were collected during this study.We tested 2 predictions:(1)that the langurs may have special patterns of habitat use and locomotion adaptive to the limestone habitat,and(2)the langurs may exhibit different patterns of habitat use and locomotion among different zones of limestone hill.Our results indicated that François’langurs spent more time in the low-risk,relatively food-poor cliff-hilltop areas.When young leaves and fruit were scarce in the dry season,the langurs increased their time in the high-risk,food-rich valley basin.François’langurs were semi-terrestrial,and leaping and climbing were their main locomotor modes.These behavioral patterns are considered to be related to characteristics of topography and vegetation in limestone habitat,such as large areas of cliff and discontinuous canopy.Our results also supported Prediction 2.The langurs confined locomotion to the main canopy and frequently adopted leaping while traveling in the hillside and valley basin.While traveling in cliff-hilltop areas,they tended to stay in the lower stratus(≤5 m)or move on the ground,and walking and climbing were their dominant traveling modes.展开更多
Ranging behavior is an important aspect of animal behavior that researchers use to investigate ecological influences on individual behavior.We collected data on the ranging behavior of one group of François’lang...Ranging behavior is an important aspect of animal behavior that researchers use to investigate ecological influences on individual behavior.We collected data on the ranging behavior of one group of François’langurs(Trachypithecus francoisi)between August 2003 and July 2004 in a limestone habitat within Nonggang Nature Reserve,China.We evaluated the influences of food availability,water resources and sleeping sites on ranging behavior.During the study period,the total home range size for the study group was 64.5 or(69.3 ha if the lacunae within the borders in which langurs were not observed were included),and the mean daily path length was 541 m.These are well within the range of variation reported in Trachypithecus species.The monthly range size was between 9.8 and 23.3 ha,and monthly range size correlated negatively with young leaf availability.The langurs tended to use a larger range size during young leaf-lean periods.The langurs did not use their home range uniformly,and 74%of their activities occurred within 35%of their home range.The most heavily used quadrats in the home range were located near the most frequently used sleeping sites,suggesting that sleeping sites have a significant influence on the ranging behavior of François’langurs in limestone habitats.展开更多
黑叶猴是国家一级保护动物,由于人类活动导致其生境破碎化加剧,威胁种群的生存安全。本文以黑叶猴在重庆的主要分布区金佛山为例,考虑地形、植被、人为活动和饮水因素等,选取与黑叶猴生境密切相关的7个环境影响因子,对黑叶猴生境适宜性...黑叶猴是国家一级保护动物,由于人类活动导致其生境破碎化加剧,威胁种群的生存安全。本文以黑叶猴在重庆的主要分布区金佛山为例,考虑地形、植被、人为活动和饮水因素等,选取与黑叶猴生境密切相关的7个环境影响因子,对黑叶猴生境适宜性进行了分析,并利用最小累积阻力(MCR)模型构建了潜在生境之间的生态廊道。结果表明,黑叶猴最适宜生境面积为178.07 km 2,仅占研究区总面积的12.15%,主要分布在金佛山中部和东北部地区的沟谷地带,潜在生境斑块呈条带状,破碎化状态明显,具有海拔高、坡度陡、临近水源、植被覆盖度高、远离人为活动干扰等特点;构建的生态廊道共有56条,廊道最小宽度为303.9 m,廊道总长度为147.82 km,总面积为43.89 km 2。本文的研究成果对黑叶猴种群和生境的保护具有重要指导意义。展开更多
基金financially supported by the National Nature Science Foundation of China(No.30560023,30860050,31172122)the Guangxi Nature Science Foundation(2012GXNSFAA053039)the Monitoring and Conservation of Langur Project of the National Forestry Administration of China.
文摘We collected data on habitat use and locomotion of the François’langur(Trachypithecus francoisi)between August 2003 and July 2004 at Nonggang Nature Reserve,China.A total of 739 h of behavioral data were collected during this study.We tested 2 predictions:(1)that the langurs may have special patterns of habitat use and locomotion adaptive to the limestone habitat,and(2)the langurs may exhibit different patterns of habitat use and locomotion among different zones of limestone hill.Our results indicated that François’langurs spent more time in the low-risk,relatively food-poor cliff-hilltop areas.When young leaves and fruit were scarce in the dry season,the langurs increased their time in the high-risk,food-rich valley basin.François’langurs were semi-terrestrial,and leaping and climbing were their main locomotor modes.These behavioral patterns are considered to be related to characteristics of topography and vegetation in limestone habitat,such as large areas of cliff and discontinuous canopy.Our results also supported Prediction 2.The langurs confined locomotion to the main canopy and frequently adopted leaping while traveling in the hillside and valley basin.While traveling in cliff-hilltop areas,they tended to stay in the lower stratus(≤5 m)or move on the ground,and walking and climbing were their dominant traveling modes.
基金This study is sponsored by the National Nature Science Foundation of China(No.39960015,30560023,30860050)the Chinese Academy of Sciences 100 Talent Program,the Monitoring and Conservation of Langur Project of the National Forestry Administration of China,the Guangxi Science Foundation(0991095)and the Project of the Creative Team from Colleges and Universities in Guangxi.We thank the Guangxi Forestry Bureau and the Nonggang Nature Reserve Administration Bureau.
文摘Ranging behavior is an important aspect of animal behavior that researchers use to investigate ecological influences on individual behavior.We collected data on the ranging behavior of one group of François’langurs(Trachypithecus francoisi)between August 2003 and July 2004 in a limestone habitat within Nonggang Nature Reserve,China.We evaluated the influences of food availability,water resources and sleeping sites on ranging behavior.During the study period,the total home range size for the study group was 64.5 or(69.3 ha if the lacunae within the borders in which langurs were not observed were included),and the mean daily path length was 541 m.These are well within the range of variation reported in Trachypithecus species.The monthly range size was between 9.8 and 23.3 ha,and monthly range size correlated negatively with young leaf availability.The langurs tended to use a larger range size during young leaf-lean periods.The langurs did not use their home range uniformly,and 74%of their activities occurred within 35%of their home range.The most heavily used quadrats in the home range were located near the most frequently used sleeping sites,suggesting that sleeping sites have a significant influence on the ranging behavior of François’langurs in limestone habitats.
文摘黑叶猴是国家一级保护动物,由于人类活动导致其生境破碎化加剧,威胁种群的生存安全。本文以黑叶猴在重庆的主要分布区金佛山为例,考虑地形、植被、人为活动和饮水因素等,选取与黑叶猴生境密切相关的7个环境影响因子,对黑叶猴生境适宜性进行了分析,并利用最小累积阻力(MCR)模型构建了潜在生境之间的生态廊道。结果表明,黑叶猴最适宜生境面积为178.07 km 2,仅占研究区总面积的12.15%,主要分布在金佛山中部和东北部地区的沟谷地带,潜在生境斑块呈条带状,破碎化状态明显,具有海拔高、坡度陡、临近水源、植被覆盖度高、远离人为活动干扰等特点;构建的生态廊道共有56条,廊道最小宽度为303.9 m,廊道总长度为147.82 km,总面积为43.89 km 2。本文的研究成果对黑叶猴种群和生境的保护具有重要指导意义。
基金the Wenner-Gren Foundationthe Australian National University+6 种基金the Columbus ZooConservation InternationalPrimate Conservation Inc.(G#,443&797)Pittsburgh Zoothe Nature Science Fund Committee of China(#30860051)Southwest Forestry University(#110851)National Forestry Bureau of China(#2130211)
