Hawaii Island Hawaiian hoary bat foraging location data 2004-2010

Hawaiian hoary bats (Lasiurus cinereus semotus) on Hawaii island were surveyed intermittently from 2004-2010. This data release is a single table of resulting bat location estimates, including date, time, coordinates for each location, and presumed bat activity at the time of collection. Nightly movements were documented for 30 Hawaiian hoary bats along the windward (eastern) side of the island of Hawaii. Each bat was fitted with a colored, split ring forearm band (Size X3; A. C. Hughes, Hampton Hill, United Kingdom) for long-term individual recognition and with a radiotransmitter (BD-2C model from Holohil Systems, Carp, Ontario, Canada). Bats were then released at the point of capture. Output from the transmitters was monitored with tracking receivers and 3-element Yagi antennae. Tracking stations were established at points within 5-300 m of activity centers for each bat and the tracking station coordinates recorded using Garmin GPS 12XL units (Garmin Corporation, Olathe, Kansas). Receiver stations were moved as necessary to improve reception. For a flying bat, bat locations were derived from a single bearing and signal strength (from Bonaccorso et al. 2015). References: Bonaccorso, F. J., C. M. Todd, A. C. Miles, and P. M. Gorresen (2015). Foraging range movements of the endangered Hawaiian hoary bat, Lasiurus cinereus semotus (Chiroptera: Vespertilionidae). Journal of Mammalogy 96:64-71.2004年至2010年间，研究人员对夏威夷岛的夏威夷灰蝠（Lasiurus cinereus semotus）开展了间断性野外调查。本次数据发布包含一张整合本次调查所得蝙蝠位置估算结果的数据表，其中涵盖调查日期、采样时刻、各位置的地理坐标，以及采样时推测的蝙蝠活动状态。 研究共记录了30只夏威夷灰蝠在夏威夷岛迎风（东部）岸线区域的夜间移动轨迹。每只受试蝙蝠均佩戴了彩色分体式前臂环志（型号X3，制造商为英国汉普顿希尔的A. C. Hughes公司）以实现长期个体识别，同时背负了型号为BD-2C的无线电发射器（产自加拿大安大略省卡普的Holohil Systems公司）。完成标记后，研究人员将蝙蝠在其捕获原地放生。 研究人员通过追踪接收机与三元八木天线（3-element Yagi antennae）接收并监测发射器发出的信号。针对每只蝙蝠，研究人员在其活动中心周边5米至300米范围内设立追踪站点，并使用Garmin GPS 12XL设备（美国堪萨斯州奥拉西的Garmin Corporation公司出品）记录各追踪站点的坐标。必要时，研究人员会调整接收站点位置以优化信号接收效果。 对于处于飞行状态的蝙蝠，其位置信息通过单方位角与信号强度两项参数推算得出（数据来源：Bonaccorso等，2015）。 参考文献：Bonaccorso, F. J., C. M. Todd, A. C. Miles, 与 P. M. Gorresen (2015). 濒危夏威夷灰蝠（Lasiurus cinereus semotus，翼手目：蝙蝠科）的觅食范围移动规律. 《Journal of Mammalogy》, 96: 64-71.