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首页> 外文期刊>Research in Zoology >Effect of Temperature Fluctuation on Thermoregulatory Behavior of Gharial in Winter Season (A Case Study of Gharial Conservation Breeding Centre, Chitwan National Park, Nepal)
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Effect of Temperature Fluctuation on Thermoregulatory Behavior of Gharial in Winter Season (A Case Study of Gharial Conservation Breeding Centre, Chitwan National Park, Nepal)

机译：温度波动对冬季加里耳热调节行为的影响（ A 案例 Stu dy / i> 加里尔 保护区 繁殖 中心， 奇旺 国家 公园 尼泊尔）

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Gharial (Gavialis gangeticus ) is only surviving member of family Gavialidae which is native to Indian sub-continent. IUCN has listed Gharial as Critically Endangered and categorized in Appendix-I by CITES. In response to high population declination, Government of Nepal has started the restocking program from 1978. Environmental temperature has a pivotal role in the behavior of ectotherms. A pilot study was conducted from December 2017 to March 2018 to assess the impact of temperature variability on behavioral thermoregulation of gharial in the winter season at Gharial conservation Breeding Centre (GCBC), Chitwan National Park, Nepal. The paper attempts to analyze the effect of atmospheric and pool water temperature fluctuation on thermoregulatory behavior of gharial in the winter season which is an important consideration for conservation issue. Primary data was collected using focal animal sampling method and the temperature was recorded with a thermometer. The results of this study revealed, in morning gharials spent 91.44% time inside water when mean water temperature 14.93°C was greater than the atmospheric temperature of 12.80°C. Meanwhile, during day and evening, they spent 87.98% and 81.49% of their time basking outside as outer atmosphere was warmer with average 20.80°C and 20.14°C than pool water temperature 17.67°C and 17.60°C respectively to maintain their body temperature. In winter, basking was triggered when outer temperature surpassed pool water during day and evening hours but warmer pool water than the atmosphere in the morning resulted in gharials to stay inside pools for thermoregulation and ecological needs of their body. In extreme temperature, thermal stress may affect normal functions causing extensive damages. Thus, it is important to understand behavioral pattern and consider temperature fluctuation to prevent gharial from deadly extreme as well as for management and establishment of captive centers.
机译：Gharial（ Gavialis gangeticus）仅是印度次大陆的Gavialidae家族的幸存成员。自然保护联盟将加里尔列为极度濒危物种，并由《濒危野生动植物种国际贸易公约》（CITES）列入附录一。为应对高人口偏见，尼泊尔政府从1978年开始实施补给计划。环境温度在外热行为中起着举足轻重的作用。 2017年12月至2018年3月进行了一项试点研究，以评估冬季尼泊尔尼泊尔奇旺国家公园加里尔保护育种中心（GCBC）的温度变化对加里尔行为温度调节的影响。本文试图分析冬季冬季大气和水池水温波动对咽喉热调节行为的影响，这是保护问题的重要考虑因素。使用局灶动物采样方法收集原始数据，并用温度计记录温度。这项研究的结果表明，早晨的食管在平均水温14.93°C高于大气温度12.80°C时，在水中花费了91.44％的时间。同时，在白天和晚上，他们花费87.98％和81.49％的时间在室外晒太阳，因为外部大气比游泳池水温分别平均17.80°C和17.60°C分别高20.80°C和20.14°C，以保持体温。在冬天，白天和晚上外部温度超过游泳池水，但早晨的游泳池水温度高于大气温度时，会触发晒太阳，导致g虫留在游泳池内以调节身体温度和生态需求。在极端温度下，热应力可能会影响正常功能，从而造成广泛的损害。因此，重要的是要了解行为模式并考虑温度波动，以防止gharial出现致命的极端情况，以及管理和建立俘虏中心。

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