期刊
GLOBAL CHANGE BIOLOGY
卷 26, 期 2, 页码 798-806出版社
WILEY
DOI: 10.1111/gcb.14932
关键词
butterfly; conservation; endangered species; habit restoration; hurricane; population dynamics
资金
- National Science Foundation [DEB-1801289]
- Florida Keys National Wildlife Refuges through the Cooperative Recovery Initiative
- Everglades National Park [P18AC01047]
As habitat loss and fragmentation, urbanization, and global climate change accelerate, conservation of rare ecosystems increasingly relies on human intervention. However, any conservation strategy is vulnerable to unpredictable, catastrophic events. Whether active management increases or decreases a system's resilience to these events remains unknown. Following Hurricane Irma's landfall in our habitat restoration study sites, we found that rare ecosystems with active, human-imposed management suffered less damage in a hurricane's path than unmanaged systems. At the center of Irma's landfall, we found Croton linearis' (a locally rare plant that is the sole host for two endangered butterfly species) survival and population growth rates in the year of the hurricane were higher in previously managed plots than in un-managed controls. In the periphery of Irma's circulation, the effect of prior management was stronger than that of the hurricane. Maintaining the historical disturbance regime thus increased the resilience of the population to major hurricane disturbance. As climate change increases the probability and intensity of severe hurricanes, human management of disturbance-adapted landscapes will become increasingly important for maintaining populations of threatened species in a storm's path. Doing nothing will accelerate extinction.
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