Reserve design to optimize the long-term persistence of multiple species

Matthew Strimas-Mackey, Jedediah F. Brodie

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Protected areas form the cornerstone of global efforts to conserve biodiversity. Most current methods for designing reserve networks focus on maximizing the representation of species, but with no assurance that those species will persist in the protected landscapes into the future. We present a new strategy for reserve design that combines metapopulation theory with spatial conservation prioritization to estimate conservation solutions that minimize extinction risk across numerous species simultaneously. Our framework optimizes the spatial configuration of reserves to maximize metapopulation persistence for an entire assemblage of species by accounting for both species representation and landscape connectivity. As a case study, we design a reserve network for 114 terrestrial mammal species in Indonesian New Guinea. Our approach builds on Marxan, the flagship representation-based reserve design tool, improving estimated persistence (metapopulation capacity) by an average of 4.6-fold across species, without increasing the socioeconomic cost. We suggest that enhancing species persistence, rather than protecting arbitrary proportions of species’ ranges, should be the ultimate objective of conservation planning.

Original languageEnglish
Pages (from-to)1354-1361
Number of pages8
JournalEcological Applications
Volume28
Issue number5
DOIs
StatePublished - Jul 2018

Keywords

  • Marxan
  • biodiversity conservation
  • habitat fragmentation
  • metapopulation
  • protected areas
  • rainforest
  • tropical ecosystems

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