Managing for interactions between local and global stressors of ecosystems.
Managing for interactions between local and global stressors of ecosystems.
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DOI：
10.1371/journal.pone.0065765
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Richardson AJ
中科院分区：
文献类型：
--
作者：
Brown CJ;Saunders MI;Possingham HP;Richardson AJ
包括气候变化在内的全球压力源是对生态系统的重大威胁，但当地行动无法阻止它们。因此，生态系统管理试图通过减少过度捕捞等局部压力因素来补偿全球压力因素的影响。这种方法假设压力源相互作用或协同作用，从而两个压力源的组合效应至少是它们单独效应的总和。然而，目前尚不清楚，在多个压力源不会产生累加或更大影响的情况下，管理应如何处理压力源之间的对抗性相互作用。迄今为止的研究主要集中在识别压力源之间的协同作用，但拮抗作用也可能同样常见。我们研究了在海草和鱼类群落这两个系统中面对不同类型的相互作用时管理的有效性，其中全球压力源是气候变化，但局部压力源不同。当存在协同作用时，减轻局部压力源会带来更大的收益，而当存在对抗性时，对局部压力源的管理无效，甚至导致生态系统退化。这些结果表明，如果存在协同相互作用，减少局部压力源可以补偿气候变化的影响。相反，如果存在对抗性相互作用，那么在气候变化避难地区，对当地压力源的管理将带来最大的好处。需要一个平衡的研究议程，调查对抗和协同相互作用类型，以告知管理优先事项。
Global stressors, including climate change, are a major threat to ecosystems, but they cannot be halted by local actions. Ecosystem management is thus attempting to compensate for the impacts of global stressors by reducing local stressors, such as overfishing. This approach assumes that stressors interact additively or synergistically, whereby the combined effect of two stressors is at least the sum of their isolated effects. It is not clear, however, how management should proceed for antagonistic interactions among stressors, where multiple stressors do not have an additive or greater impact. Research to date has focussed on identifying synergisms among stressors, but antagonisms may be just as common. We examined the effectiveness of management when faced with different types of interactions in two systems – seagrass and fish communities – where the global stressor was climate change but the local stressors were different. When there were synergisms, mitigating local stressors delivered greater gains, whereas when there were antagonisms, management of local stressors was ineffective or even degraded ecosystems. These results suggest that reducing a local stressor can compensate for climate change impacts if there is a synergistic interaction. Conversely, if there is an antagonistic interaction, management of local stressors will have the greatest benefits in areas of refuge from climate change. A balanced research agenda, investigating both antagonistic and synergistic interaction types, is needed to inform management priorities.
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影响因子：
9.8
作者：
Côté IM;Darling ES
通讯作者：
Darling ES
影响因子：
3.8
作者：
Ban, Natalie C.;Alidina, Hussein M.;Ardron, Jeff A.
通讯作者：
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影响因子：
2.5
作者：
Carr, Joel A.;D'Odorico, Paolo;Wiberg, Patricia L.
通讯作者：
Wiberg, Patricia L.
DOI：
10.1073/pnas.0907529106
发表时间：
2009-12-29
影响因子：
11.1
作者：
Ling, S. D.;Johnson, C. R.;Ridgway, K. R.
通讯作者：
Ridgway, K. R.
影响因子：
11.6
作者：
Mantyka-Pringle, Chrystal S.;Martin, Tara G.;Rhodes, Jonathan R.
通讯作者：
Rhodes, Jonathan R.