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The University of Massachusetts Amherst

Joint analysis of stressors and ecosystem services to enhance restoration effectiveness

Authors:

David Allan

Peter McIntyre

Sigrid Smith

Benjamin Halpern

G. Boyer

A. Buchsbaum

G. Burton

L. Campbell

W. Chadderton

Jan Ciborowski

Patrick Doran

T. Eder

Dana Infante

L. Johnson

Christine Joseph

A. Marino

A. Prusevich

J. Read

J. Rose

Edward Rutherford

S. Sowa

A. Steinman

Publication Type:
Journal Article
Year of Publication:
2013
Secondary Title:
Proceedings of the National Academy of Sciences
ISSN:
1091-6490
DOI:
10.1073/pnas.1213841110
Pages:
372-377
Volume:
110
Year:
2013
Date:
01/2013

Abstract

With increasing pressure placed on natural systems by growing human populations, both scientists and resource managers need a better understanding of the relationships between cumulative stress from human activities and valued ecosystem services. Societies often seek to mitigate threats to these services through large-scale, costly restoration projects, such as the over one billion dollar Great Lakes Restoration Initiative currently underway. To help inform these efforts, we merged high-resolution spatial analyses of environmental stressors with mapping of ecosystem services for all five Great Lakes. Cumulative ecosystem stress is highest in near-shore habitats, but also extends offshore in Lakes Erie, Ontario, and Michigan. Variation in cumulative stress is driven largely by spatial concordance among multiple stressors, indicating the importance of considering all stressors when planning restoration activities. In addition, highly stressed areas reflect numerous different combinations of stressors rather than a single suite of problems, suggesting that a detailed understanding of the stressors needing alleviation could improve restoration planning. We also find that many important areas for fisheries and recreation are subject to high stress, indicating that ecosystem degradation could be threatening key services. Current restoration efforts have targeted high-stress sites almost exclusively, but generally without knowledge of the full range of stressors affecting these locations or differences among sites in service provisioning. Our results demonstrate that joint spatial analysis of stressors and ecosystem services can provide a critical foundation for maximizing social and ecological benefits from restoration investments.