Lundhede Thomas Hedemark, Jacobsen Jette Bredahl, Hanley Nick, Fjeldså Jon, Rahbek Carsten, Strange Niels, Thorsen Bo Jellesmark
Department of Food and Resource Economics and Centre for Macroecology, Evolution and Climate, University of Copenhagen, Copenhagen, Denmark.
Department of Geography and Sustainable Development, University of St. Andrews, St. Andrews, Scotland, United Kingdom.
PLoS One. 2014 Jul 1;9(7):e101281. doi: 10.1371/journal.pone.0101281. eCollection 2014.
There is increasing evidence that global climate change will alter the spatiotemporal occurrences and abundances of many species at continental scales. This will have implications for efficient conservation of biodiversity. We investigate if the general public in Denmark are willing to pay for the preservation of birds potentially immigrating and establishing breeding populations due to climate change to the same extent that they are for native species populations currently breeding in Denmark, but potentially emigrating due to climate change. We find that Danish citizens are willing to pay much more for the conservation of birds currently native to Denmark, than for bird species moving into the country--even when they are informed about the potential range shifts associated with climate change. The only exception is when immigrating species populations are under pressure at European level. Furthermore, people believing climate change to be man-made and people more knowledgeable about birds tended to have higher WTP for conservation of native species, relative to other people, whereas their preferences for conserving immigrant species generally resembled those of other people. Conservation investments rely heavily on public funding and hence on public support. Our results suggest that cross-country coordination of conservation efforts under climate change will be challenging in terms of achieving an appropriate balance between cost-effectiveness in adaptation and the concerns of a general public who seem mostly worried about protecting currently-native species.
越来越多的证据表明,全球气候变化将在大陆尺度上改变许多物种的时空分布和数量。这将对生物多样性的有效保护产生影响。我们调查丹麦的普通民众是否愿意为保护因气候变化可能迁入并建立繁殖种群的鸟类付出与保护目前在丹麦繁殖但可能因气候变化而迁出的本地物种种群相同程度的代价。我们发现,丹麦公民愿意为保护目前丹麦本土的鸟类付出比保护迁入该国的鸟类物种多得多的代价——即使他们了解与气候变化相关的潜在分布范围变化。唯一的例外是当迁入物种种群在欧洲层面面临压力时。此外,相对于其他人,认为气候变化是人为造成的人以及对鸟类了解更多的人往往对保护本地物种有更高的支付意愿,而他们对保护迁入物种的偏好通常与其他人相似。保护投资严重依赖公共资金,因此依赖公众支持。我们的结果表明,在气候变化背景下,要在适应的成本效益与似乎主要担心保护当前本地物种的普通公众的担忧之间实现适当平衡,跨国协调保护工作将具有挑战性。