当前位置: X-MOL 学术Oryx › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Improving averted loss estimates for better biodiversity outcomes from offset exchanges
Oryx ( IF 2.2 ) Pub Date : 2020-02-10 , DOI: 10.1017/s0030605319000528
Fleur J. F. Maseyk , Martine Maron , Ascelin Gordon , Joseph W. Bull , Megan C. Evans

Biodiversity offsetting aims to achieve at least no net loss of biodiversity by fully compensating for residual development-induced biodiversity losses after the mitigation hierarchy (avoid, minimize, remediate) has been applied. Actions used to generate offsets can include securing site protection, or maintaining or enhancing the condition of targeted biodiversity at an offset site. Protection and maintenance actions aim to prevent future biodiversity loss, so such offsets are referred to as averted loss offsets. However, the benefits of such approaches can be highly uncertain and opaque, because assumptions about the change in likelihood of loss as a result of the offset action are often implicit. As a result, the gain generated by averting losses can be intentionally or inadvertently overestimated, leading to offset outcomes that are insufficient for achieving no net loss of biodiversity. We present a method and decision tree to guide consistent and credible estimation of the likelihood of biodiversity loss for a proposed offset site with and without protection, for use when calculating the amount of benefit associated with the protection component of averted loss offsets. In circumstances such as when a jurisdictional offset policy applies to most impacts, plausible estimates of averted loss can be very low. Averting further loss of biodiversity is desirable, and averted loss offsets can be a valid approach for generating tangible gains. However, overestimation of averted loss benefits poses a major risk to biodiversity.

中文翻译:

改进可避免的损失估计,以通过抵消交换获得更好的生物多样性结果

生物多样性补偿旨在通过在应用缓解等级(避免、最小化、补救)后充分补偿剩余的发展引起的生物多样性损失,至少实现生物多样性的净损失。用于产生补偿的行动可以包括确保场地保护,或维持或加强补偿场地目标生物多样性的状况。保护和维护行动旨在防止未来的生物多样性丧失,因此此类补偿被称为避免的损失补偿。然而,这种方法的好处可能是高度不确定和不透明的,因为关于抵消行动导致的损失可能性变化的假设通常是隐含的。因此,避免损失所产生的收益可能会被有意或无意地高估,导致抵消不足以实现生物多样性不净损失的结果。我们提出了一种方法和决策树,以指导对提议的补偿地点有和没有保护的生物多样性丧失的可能性进行一致和可信的估计,以便在计算与避免的损失补偿的保护部分相关的收益量时使用。在诸如管辖权抵消政策适用于大多数影响的情况下,避免损失的合理估计可能非常低。避免生物多样性的进一步丧失是可取的,避免的损失抵消可能是产生有形收益的有效方法。然而,高估避免的损失收益会给生物多样性带来重大风险。我们提出了一种方法和决策树,以指导对提议的补偿地点有和没有保护的生物多样性丧失的可能性进行一致和可信的估计,以便在计算与避免的损失补偿的保护部分相关的收益量时使用。在诸如管辖权抵消政策适用于大多数影响的情况下,避免损失的合理估计可能非常低。避免生物多样性的进一步丧失是可取的,避免的损失抵消可能是产生有形收益的有效方法。然而,高估避免的损失收益会给生物多样性带来重大风险。我们提出了一种方法和决策树,以指导对提议的补偿地点有和没有保护的生物多样性丧失的可能性进行一致和可信的估计,以便在计算与避免的损失补偿的保护部分相关的收益量时使用。在诸如管辖权抵消政策适用于大多数影响的情况下,避免损失的合理估计可能非常低。避免生物多样性的进一步丧失是可取的,避免的损失抵消可能是产生有形收益的有效方法。然而,高估避免的损失收益会给生物多样性带来重大风险。在诸如管辖权抵消政策适用于大多数影响的情况下,避免损失的合理估计可能非常低。避免生物多样性的进一步丧失是可取的,避免的损失抵消可能是产生有形收益的有效方法。然而,高估避免的损失收益会给生物多样性带来重大风险。在诸如管辖权抵消政策适用于大多数影响的情况下,避免损失的合理估计可能非常低。避免生物多样性的进一步丧失是可取的,避免的损失抵消可能是产生有形收益的有效方法。然而,高估避免的损失收益会给生物多样性带来重大风险。
更新日期:2020-02-10
down
wechat
bug