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Functional-trait ecology of the plateau pika Ochotona curzoniae in the Qinghai-Tibetan Plateau ecosystem

Integrative Zoology 2019年第1期14卷 87-103页

作者： Andrew T.SMITH BADINGQIUYING Maxwell C.WILSON Brigitte W.HOGAN School of Life Sciences Arizona State UniversityTempeArizonaUSA School of Geographical Sciences Qinghai Normal UniversityXiningChina

Understanding a species’functional traits allows for a directed and productive perspective on the role a species plays in nature,and thus its relative importance to conservation *** functionaltrait ecology of the plateau pika Ochotona curzoniae is examined to better understand the resilience and sustainability of the high alpine grasslands of the Qinghai-Tibetan Plateau(QTP).The key functional traits of plateau pikas are their abundance and behavior of digging extensive burrow *** pikas have been poisoned over a significant part of their original geographic distribution across the QTP,allowing comparison of ecological communities with and without *** all mammalian and avian carnivores,most of which are obligate predators on pikas,have been lost in regions where pikas have been *** endemic birds on the QTP nest in pika burrows;when pikas are poisoned,burrows collapse,and these birds are greatly reduced in *** to the biopedturbation resulting from their burrows,regional plant species richness is higher in areas with pikas than *** presence of pika burrows allows higher rates of infiltration during heavy monsoon rains compared to poisoned areas,possibly mitigating runoff and the potential for serious downslope erosion and ***,the functional traits of plateau pikas enhance native biodiversity and other important ecosystem functions;these traits are *** plateau pikas are not natural colonizers,active reintroduction programs are needed to restore pikas to areas from which they have been poisoned to restore the important functional ecological traits of pikas.

关键词： ecosystem engineer functional-trait ecology keystone species Ochotona curzoniae re-introduction

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Behaviors of the Oriental White Stork (Ciconia boyciana) in a semi-natural enclosure

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Chinese Birds 2013年第2期4卷 161-169页

作者：杨陈侯银续周立志安徽大学资源与环境工程学院生物多样性与湿地生态研究所合肥230601 中国科学院成都生物研究所成都610041

Environmental factors affect animal behavior in a variety of ways. Compared to animals in the wild, captive animals are kept in narrow enclosures, suffer higher densities and are more intensely affected by human activities. Therefore, behavioral elasticity is likely modified to some extent in captive animals, which may negatively affect the possibility of successful release of endangered species in the wild. In our study we investigated the behaviors of the Oriental White Stork (Ciconia boyciana) in a semi-natural enclosure from 15 October 2005 to 8 September 2006 in Hefei Wildlife Park, China. The behavioral data were collected by instantaneous and scan sampling methods, and we analyzed the relationships between environmental factors and their behaviors. The amounts of time spent on maintenance behavior (foraging and moving) were at similar levels for birds reproducing multibroods (Group 1), birds reproducing one brood (Group 2) and birds without reproduction (Group 3). On the other hand, the amount of time spent on elastic behavior (defensive, breeding and preening) for Group 3 was lower than that for Groups 1 and 2. The behavioral pattern of the storks exhibited marked seasonal changes, which may be a function of ambient temperature, human disturbanc, and the length of daylight, but not of wind intensity. Our results provide basic data for future conser- vation measures of this endangered species.

关键词： Ciconia boyciana time budget human disturbance re-introduction

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