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Human activities and elevational constraints restrict ranging patterns of snub-nosed monkeys in a mountainous refuge

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Integrative Zoology 2021年第2期16卷 202-213页

作者： Pengzhen HUANG Kun BIAN Zhipang HUANG Qi Li Derek WDUNN Gu FANG Jiahui LIU Mengyao WANG Xianfeng YANG Ruliang PAN Cunlao GAO Kaichuang SI Baoguo LI Xiaoguang QI Shaanxi Key Laboratory for Animal Conservation College of Life SciencesNorthwest UniversityXi’anChina Shaanxi Institute of Zoology Xi’anChina Zhouzhi National Nature Reserve Xi’anChina Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunmingChina

Both natural conditions and anthropogenic factors affect the survivability,distribution,and population density of *** understand the extent and how these factors drive species distributions,a detailed description of animal movement patterns in natural habitats is *** this study,we used satellite telemetry to monitor elevational ranges favored by endangered golden snub-nosed monkeys(Rhinopithecus roxellana),in the Qinling Mountains,central *** investigated the abundance and distribution of food resources through sampling vegetation quadrats at different elevations and sampled anthropogenic activities using field *** results indicated that although there was no significant variation in food resources between low-(<1500 m)and middle-elevations(1500–2200 m),monkeys were found most often in areas above 1500 m,where there was less anthropogenic development(*** and roads);however,monkeys rarely ranged above 2200 m and had limited food availability at this *** was limited human disturbance at this *** suggest that both human activity and ecological constraints(*** resources)have considerable effects on elevational use of *** in the Qinling *** study highlights the critical roles these factors can play in shaping the vertical distribution of high-altitude *** research provides useful insights for habitat-based conservation plans in which human disturbance management and habitat restoration should be prioritized.

关键词： elevational distribution food resources human activity Rhinopithecus roxellana satellite telemetry

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Movements and diving behavior of internesting green turtles along Pacific Costa Rica

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Integrative Zoology 2013年第3期8卷 293-306页

作者： Gabriela S.BLANCO Stephen J.MORREALE Jeffrey A.SEMINOFF Frank V.PALADINO Rotney PIEDRA James R.SPOTILA Department of Biology Drexel UniversityPhiladelphiaPennsylvaniaUSA Department of Natural Resources Cornell UniversityIthacaNew YorkUSA National Marine Fisheries Service Southwest Fisheries Science CenterLa JollaCaliforniaUSA Department of Biology Indiana University-Purdue UniversityFort WayneIndianaUSA Leatherback National Marine Park Ministry of EnvironmentEnergy and Telecommunications San JoseCosta Rica

Using satellite transmitters,we determined the internesting movements,spatial ecology and diving behavior of East Pacific green turtles(Chelonia mydas)nesting on Nombre de Jesús and Zapotillal beaches along the Pacific coast of northwestern Costa *** density analysis indicated that turtles spent most of their time in a particularly small area in the vicinity of the nesting beaches(50%utilization distribution was an area of 3 km^(2)).Minimum daily distance traveled during a 12 day internesting period was 4.6±3.5 *** were short and primarily occupied the upper 10 m of the water *** spent most of their time resting at the surface and conducting U-dives(ranging from 60 to 81%of the total tracking time involved in those activities).Turtles showed a strong diel pattern,U-dives mainly took place during the day and turtles spent a large amount of time resting at the surface at *** lack of long-distance movements demonstrated that this area was heavily utilized by turtles during the nesting season and,therefore,was a crucial location for conservation of this highly endangered green turtle *** unique behavior of these turtles in resting at the surface at night might make them particularly vulnerable to fishing activities near the nesting beaches.

关键词： Chelonia mydas Costa Rica East Pacific green turtle internesting period satellite telemetry

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