A case of natural recovery after the removal of invasive predators – community assemblage changes in the avifauna of Burgess Island
A case of natural recovery after the removal of invasive predators – community assemblage changes in the avifauna of Burgess Island
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入侵性捕食者被清除后自然恢复的案例——伯吉斯岛鸟类群落组合的变化
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
M. Imber
中科院分区：
文献类型：
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作者：
Stefanie M. H. Ismar;K. Baird;C. Gaskin;G. Taylor;A. Tennyson;M. Rayner;D. Bettesworth;Neil Fitzgerald;T. Landers;M. Imber
在消灭引入的捕食者后，监测自然岛屿生态系统恢复的机会很少，这为通过积极的栖息地恢复和物种迁移辅助的恢复计划提供了有用的比较。我们提出了一个评估目前的鸟类在伯吉斯岛，Mokohinau组，20年后基奥雷（太平洋大鼠;鼠exulans）删除。我们记录的4种最丰富的陆地鸟类是红冠鹦鹉（Cyanorhamphus novaezelanalus），铃鸟（Anthornis melanura），tui（Prossthemadera novaeseelanalus）和silvereye（Zosterops lateralis），都是新西兰本土的物种。我们的记录证实，现在有46种物种利用岛上的栖息地，相比之下，在过去几十年的鼠患文献报道的24种。我们还确认，到2011年有9种海鸟繁殖，其中只有4种在消灭老鼠之前在伯吉斯岛保持繁殖种群。在捕食者消失20多年后，伯吉斯岛拥有丰富的鸟类区系，并提供了一个在捕食者消灭后自然恢复的宝贵例子，而无需采取任何进一步的积极恢复措施
Opportunities to monitor natural island ecosystem recovery following the eradication of introduced predators are rare, and provide a useful comparison for recovery programmes aided by active habitat restoration and species translocations. We present an assessment of the current avifauna on Burgess Island, Mokohinau Group, 2 decades after kiore (Pacific rat; Rattus exulans) removal. The 4 most abundant land bird species we recorded are red-crowned parakeet (Cyanorhamphus novaezelandiae), bellbird (Anthornis melanura), tui (Prosthemadera novaeseelandiae) and silvereye (Zosterops lateralis), all New Zealand native taxa. Our records confirm that 46 species now utilize the island’s habitats, compared with 24 species reported from the literature during the last decades of rat infestation. We also confirm breeding of 9 seabird species by 2011, only 4 of which maintained breeding populations on Burgess Island prior to rat eradication. More than 20 years after predator removal, Burgess Island hosts a rich avifauna, and provides a valuable example of natural recovery following predator eradication without any further active restoration measures