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MEPS 264:213-219 (2003)
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Abstract
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Compensatory mitigation for injury to a threatened or endangered species: scaling piping plover restoration
Michael Donlan1,*, Molly Sperduto2, Charlie Hebert3
1Industrial Economics, 2067 Massachusetts Avenue, Cambridge, Massachusetts 02140, USA
2United States Fish and Wildlife Service, 70 Commercial St, Suite 300, Concord, New Hampshire 03301, USA
3United States Fish and Wildlife Service, 911 NE 11th Ave, Portland, Oregon 97232, USA
*Email: mcd@indecon.com
ABSTRACT: Conducting natural resource damage assessments and adopting compensatory restoration plans for endangered and threatened species have special constraints. These constraints are illustrated by the agency responses to evaluate impacts of the North
Cape oil spill on piping plovers Charadrius melodus in Rhode Island, and to establish appropriate compensatory restoration. Adopting a precautionary principle implies that strict adherence to an a-value of 0.05 in formal
tests for injury on endangered species, where rarity implies low statistical power, would result in overlooking many true impacts. Criteria for concluding that injury took place must nonetheless exist, including (1) existence of a conceptually valid
mechanism to link exposure to the stressor and the documented negative responses; (2) field data supporting the existence of the stressor-response link; and (3) sampling designs that consider impacts of potentially confounding factors such as natural
temporal change. Choosing restoration options is also challenging for endangered species because ethical considerations and risks associated with some interventions preclude otherwise acceptable actions for common species. For the piping plover, a
synthesis of population limitations done for the species recovery plan was used to design compensatory restoration of protection of nesting on newly colonized beaches, an action difficult to scale in advance to match the estimated injury from oil, but
adaptively adjustable if monitoring shows a need.
KEY WORDS: Restoration · Compensatory mitigation · Habitat protection · Piping plover · Oil spill · Endangered species · Threatened species
Full text in pdf format
Published in MEPS Vol.
264
(2003) on December 15
Print ISSN: 0171-8630; Online ISSN: 1616-1599.
Copyright © Inter-Research, Oldendorf/Luhe, 2003
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