Effects of sewage effluent on the activity of bats (Chiroptera: Vespertilionidae) foraging along rivers
Effects of sewage effluent on the activity of bats (Chiroptera: Vespertilionidae) foraging along rivers
复制标题
污水排放对沿河觅食的蝙蝠（翼手目：Vespertilionidae）活动的影响
DOI：
10.1016/s0006-3207(96)00009-2
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发表时间：
1996
影响因子：
5.9
通讯作者：
S. Harris
中科院分区：
文献类型：
--
作者：
N. Vaughan;Gareth J. F. Jones;S. Harris
为了研究河流水质的下降可能会影响蝙蝠在河岸栖息地的觅食行为，蝙蝠的活动和喂养率进行了测量，从19个污水输出的上游和下游的网站。配对抽样用于控制蝙蝠活动的变化，由于环境参数。蝙蝠活动（蝙蝠通行证）和企图捕获猎物（终端嗡嗡声）记录宽带蝙蝠探测器计数在每个网站，蝙蝠种组可以区分。整体蝙蝠活动和觅食活动减少下游污水输出，由11%（总减少通行证）和28%（总减少嗡嗡声）。两种发声类型的伏翼在下游部位比上游部位活动更少（45 kHz发声类型的活动总减少55%，55 kHz发声类型的活动总减少51%）。后伏翼45 kHz音型的觅食活动主要集中在上游（嗡嗡声总数减少87%），而鼠耳蝠则集中在上游（嗡嗡声总数减少87%）。觅食率下游输出比上游（觅食率的总增加是112%）。为了保护P.pipistrellus，保持高标准的水质可能很重要。道氏鼠耳蝠可能从富营养化中受益。
In order to investigate how a decline in river water quality might affect the foraging behaviour of bats in riparian habitats, bat activity and feeding rates were measured at sites upstream and downstream from 19 sewage outputs. Paired sampling was used to control for variation in bat activity due to environmental parameters. Bat activity (bat passes) and attempted prey captures (terminal buzzes) recorded from broad band bat detectors were counted at each site, and bat species groups could be distinguished. Overall bat activity and foraging activity were reduced downstream from sewage outputs, by 11% (total reduction in passes) and 28% (total reduction in buzzes). Both phonic types of Pipistrellus pipistrellus were less active at downstream sites than at upstream sites (total reduction in activity was 55% for the 45 kHz phonic type and 51% for the 55 kHz phonic type). The 45 kHz phonic type of P. pipistrellus concentrated its foraging effort at upstream sites (total reduction in counts of buzzes was 87%), while Myotis spp. foraged at higher rates downstream from outputs than upstream (total increase in foraging rate was 112%). For the conservation of P. pipistrellus, the maintenance of high standards of water quality may be important. Myotis daubentonii may be able to benefit from eutrophication.