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Effects of capture and handling on survival of female northern pintails

机译:捕获和处理对雌性北长尾survival生存的影响

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Identification of capture and handling procedures that influence survival of wa- terfowl has important research and management implications. We captured 347 female Northern Pintails (Anas acuta) using rocket nets, fitted them with harness (backpack-type) Raido transmitters, and monitored their survival during the first 10 d following release. Fe- Males were 16 times more likely to die during he first 4 d of exposure than during days 5- 10. Survival of females captured with small numbers of waterfowl (n < 172) was not related to holding time (time from capture until release), but survival of females captured with large numbers of waterfowl (n = 594) declined as holding time increased.
机译:识别会影响水禽生存的捕获和处理程序具有重要的研究和管理意义。我们使用火箭网捕获了347只雌性北长尾((Anas acuta),为它们安装了安全带(背包式)Raido发射器,并在释放后的前10 d监测它们的生存情况。 Fe-雄性在暴露的头4天死亡的可能性是第5-10天的16倍。女性死于少量水禽(n <172)与存活时间(从捕捉到释放的时间)无关。 ),但随着饲养时间的增加,被大量水禽(n = 594)捕获的雌性的存活率下降。

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