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Avian biodiversity across Auckland’s volcanic cone reserves
New Zealand Journal of Zoology ( IF 1.3 ) Pub Date : 2018-07-19 , DOI: 10.1080/03014223.2018.1491410
Todd J. Landers 1, 2 , Samuel D. Hill 3 , Miriam R. Ludbrook 3 , Sarah J. Wells 3 , Craig D. Bishop 1
Affiliation  

ABSTRACT Auckland, a city with a population of approximately 1.7 million, is located directly on the Auckland Volcanic Field, a late Quaternary-era monogenetic field. There are at least 53 volcanoes across the field, many of which are of geological, cultural and ecological significance, such as for being reserves for native species; however, few assessments of the richness of avian biodiversity across the volcanoes have been made. To address this data shortfall, we conducted avian biodiversity surveys using stationary point counts within nine of Auckland's volcanic cone reserves. Thirty-eight species were detected across the sites, of which 18 were native. Our estimates of relative species abundances and detection probabilities revealed that the most common native birds within these reserves were silvereyes, tui and southern black-backed gulls, while common mynas, house sparrows, Eurasian blackbirds and eastern rosellas were the most common introduced species. In addition to tui and silvereyes, the presence of other natives critical to the functioning of native ecosystems, such as New Zealand fantails, grey warblers and New Zealand pigeon, suggest that the volcanoes possess a diverse native avifauna supported by native flora that warrant continued and intensified restoration efforts. We discuss several feasible strategies for improving faunal and floral biodiversity across the volcanic cone reserves. Continued avian biodiversity surveys are also of critical importance as they will enable us to further evaluate and prioritise restoration projects within Auckland's multitude of diverse volcanic cone reserves.

中文翻译:

奥克兰火山锥保护区的鸟类生物多样性

摘要奥克兰是一个拥有约 170 万人口的城市,它直接位于第四纪晚期的单发生区奥克兰火山场上。该地区至少有 53 座火山,其中许多具有地质、文化和生态意义,例如作为本地物种的保护区;然而,关于火山上鸟类生物多样性丰富程度的评估很少。为了解决这一数据不足的问题,我们使用奥克兰九个火山锥保护区内的固定点计数进行了鸟类生物多样性调查。在这些地点检测到 38 种物种,其中 18 种是本地物种。我们对相对物种丰度和探测概率的估计表明,这些保护区内最常见的本土鸟类是银眼海鸥、tui 和南方黑背海鸥,常见的八哥、家麻雀、欧亚黑鹂和东玫瑰是最常见的引进物种。除了 tui 和 silvereyes,其他对本地生态系统功能至关重要的本地人的存在,如新西兰扇尾、灰莺和新西兰鸽子,表明火山拥有由本地植物群支持的多样化本地鸟类群,值得继续和加大恢复力度。我们讨论了改善整个火山锥保护区动植物生物多样性的几种可行策略。持续的鸟类生物多样性调查也至关重要,因为它们将使我们能够进一步评估奥克兰众多不同火山锥保护区内的恢复项目并确定其优先顺序。欧亚黑鹂和东方玫瑰花是最常见的引进物种。除了 tui 和 silvereyes,其他对本地生态系统功能至关重要的本地人的存在,如新西兰扇尾、灰莺和新西兰鸽子,表明火山拥有由本地植物群支持的多样化本地鸟类群,值得继续和加大恢复力度。我们讨论了改善整个火山锥保护区动植物生物多样性的几种可行策略。持续的鸟类生物多样性调查也至关重要,因为它们将使我们能够进一步评估奥克兰众多不同火山锥保护区内的恢复项目并确定其优先顺序。欧亚黑鹂和东方玫瑰花是最常见的引进物种。除了 tui 和 silvereyes 之外,其他对本地生态系统功能至关重要的本地人的存在,如新西兰扇尾、灰莺和新西兰鸽子,表明火山拥有由本地植物群支持的多样化本地鸟类群,值得继续和加大恢复力度。我们讨论了改善整个火山锥保护区动植物生物多样性的几种可行策略。持续的鸟类生物多样性调查也至关重要,因为它们将使我们能够进一步评估奥克兰众多不同火山锥保护区内的恢复项目并确定其优先顺序。新西兰扇尾鹬、灰莺和新西兰鸽子等对本地生态系统功能至关重要的其他本地人的存在表明,火山拥有由本地植物群支持的多样化本地鸟类群,需要持续和加强恢复工作。我们讨论了改善整个火山锥保护区动植物生物多样性的几种可行策略。持续的鸟类生物多样性调查也至关重要,因为它们将使我们能够进一步评估奥克兰众多不同火山锥保护区内的恢复项目并确定其优先顺序。新西兰扇尾鹬、灰莺和新西兰鸽子等对本地生态系统功能至关重要的其他本地人的存在表明,火山拥有由本地植物群支持的多样化本地鸟类群,需要持续和加强恢复工作。我们讨论了改善整个火山锥保护区动植物生物多样性的几种可行策略。持续的鸟类生物多样性调查也至关重要,因为它们将使我们能够进一步评估奥克兰众多不同火山锥保护区内的恢复项目并确定其优先顺序。表明火山拥有由本地植物群支持的多样化本地鸟类群,需要持续和加强恢复工作。我们讨论了改善整个火山锥保护区动植物生物多样性的几种可行策略。持续的鸟类生物多样性调查也至关重要,因为它们将使我们能够进一步评估奥克兰众多不同火山锥保护区内的恢复项目并确定其优先顺序。表明火山拥有由本地植物群支持的多样化本地鸟类群,需要持续和加强恢复工作。我们讨论了改善整个火山锥保护区动植物生物多样性的几种可行策略。持续的鸟类生物多样性调查也至关重要,因为它们将使我们能够进一步评估奥克兰众多不同火山锥保护区内的恢复项目并确定其优先顺序。
更新日期:2018-07-19
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