Geosciences & Environmental Change Science Center, U.S. Geological Survey, P.O. Box 25046, DFC, MS 980, Denver, CO, 80225, USA.
Institute of Wildlife Biology & Game Management, University of Natural Resources & Life Science, Vienna, Austria.
Ambio. 2019 Jan;48(1):61-73. doi: 10.1007/s13280-018-1049-4. Epub 2018 Apr 10.
Migratory species provide important benefits to society, but their cross-border conservation poses serious challenges. By quantifying the economic value of ecosystem services (ESs) provided across a species' range and ecological data on a species' habitat dependence, we estimate spatial subsidies-how different regions support ESs provided by a species across its range. We illustrate this method for migratory northern pintail ducks in North America. Pintails support over $101 million USD annually in recreational hunting and viewing and subsistence hunting in the U.S. and Canada. Pintail breeding regions provide nearly $30 million in subsidies to wintering regions, with the "Prairie Pothole" region supplying over $24 million in annual benefits to other regions. This information can be used to inform conservation funding allocation among migratory regions and nations on which the pintail depends. We thus illustrate a transferrable method to quantify migratory species-derived ESs and provide information to aid in their transboundary conservation.
迁徙物种为社会提供了重要的益处，但它们的跨境保护却带来了严峻的挑战。通过量化跨越物种分布范围的生态系统服务（ES）的经济价值和物种对其栖息地的依赖的生态数据，我们估计了物种在其分布范围的空间补贴——不同地区如何支持该物种提供的 ES。我们以北美洲的迁徙北方针尾鸭为例来说明这种方法。在美国和加拿大，针尾鸭每年的娱乐狩猎和观赏以及自给性狩猎活动带来的价值超过 1.01 亿美元。针尾鸭的繁殖区为冬季栖息区提供了近 3000 万美元的补贴，“草原洼地”地区每年向其他地区提供超过 2400 万美元的收益。这些信息可用于为依赖针尾鸭的迁徙地区和国家之间的保护资金分配提供信息。因此，我们展示了一种可用于量化迁徙物种衍生的 ES 的可转移方法，并提供了有助于其跨境保护的信息。
