Two roles for ecological surrogacy: Indicator surrogates and management surrogates

Malcolm Hunter, Martin Westgate, Philip Barton, Aram Calhoun, Jennifer Pierson, Ayesha Tulloch, Maria Beger, Cristina Branquinho, Tim Caro, John Gross, Jani Heino, Peter Lane, Catherine Longo, Kathy Martin, William H. McDowell, Camille Mellin, Hanna Salo, David Lindenmayer

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

Ecological surrogacy - here defined as using a process or element (e.g., species, ecosystem, or abiotic factor) to represent another aspect of an ecological system - is a widely used concept, but many applications of the surrogate concept have been controversial. We argue that some of this controversy reflects differences among users with different goals, a distinction that can be crystalized by recognizing two basic types of surrogate. First, many ecologists and natural resource managers measure "indicator surrogates" to provide information about ecological systems. Second, and often overlooked, are "management surrogates" (e.g., umbrella species) that are primarily used to facilitate achieving management goals, especially broad goals such as "maintain biodiversity" or "increase ecosystem resilience." We propose that distinguishing these two overarching roles for surrogacy may facilitate better communication about project goals. This is critical when evaluating the usefulness of different surrogates, especially where a potential surrogate might be useful in one role but not another. Our classification for ecological surrogacy applies to species, ecosystems, ecological processes, abiotic factors, and genetics, and thus can provide coherence across a broad range of uses.

Original languageEnglish
Pages (from-to)121-125
Number of pages5
JournalEcological Indicators
Volume63
DOIs
Publication statusPublished - 1 Apr 2016
Externally publishedYes

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