The greater snow goose Anser caerulescens atlanticus: Managing an overabundant population.
The greater snow goose Anser caerulescens atlanticus: Managing an overabundant population.
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DOI：
10.1007/s13280-016-0887-1
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发表时间：
2017-03
期刊：
影响因子：
6.5
通讯作者：
Bélanger L
中科院分区：
文献类型：
--
作者：
Lefebvre J;Gauthier G;Giroux JF;Reed A;Reed ET;Bélanger L
1900 年代初至 90 年代期间，大雪雁 Anser caerulescens atlanticus 的数量从 3000 只增长到超过 70 万只。由于担心过度放牧导致北极自然栖息地退化，一个工作组建议稳定种群数量。 1998年宣布过剩，随后加拿大和美国实施了特别管理行动。同时，进行了成本效益社会经济分析，以确定目标人口规模。与多个层面的利益相关者进行了旨在实现共同愿景的讨论。所实施的措施取得了不同程度的成功；但自 1999 年以来，人口规模总体保持稳定。为了有效并得到社会认可，管理行动必须有科学依据，是利益相关者达成共识的结果，并包括有效的监测计划。本文讨论了人口规模和管理决策的历史变化以及过去和当前遇到的挑战。
Between the early 1900s and the 1990s, the greater snow goose Anser caerulescens atlanticus population grew from 3000 individuals to more than 700 000. Because of concerns about Arctic degradation of natural habitats through overgrazing, a working group recommended the stabilization of the population. Declared overabundant in 1998, special management actions were then implemented in Canada and the United States. Meanwhile, a cost–benefit socioeconomic analysis was performed to set a target population size. Discussions aiming towards attaining a common vision were undertaken with stakeholders at multiple levels. The implemented measures have had varying success; but population size has been generally stable since 1999. To be effective and meet social acceptance, management actions must have a scientific basis, result from a consensus among stakeholders, and include an efficient monitoring programme. In this paper, historical changes in population size and management decisions along with past and current challenges encountered are discussed.