Efficient expansion of global protected areas requires simultaneous planning for species and ecosystems

The Convention on Biological Diversity (CBD)'s strategic plan advocates the use of environmental surrogates, such as ecosystems, as a basis for planning where new protected areas should be placed. However, the efficiency and effectiveness of this ecosystem-based planning approach to adequately...

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Main Authors: Tal Polak, James E. M. Watson, Richard A. Fuller, Liana N. Joseph, Tara G. Martin, Hugh P. Possingham, Oscar Venter, Josie Carwardine
Format: Article
Language:English
Published: The Royal Society 2015-01-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.150107
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author Tal Polak
James E. M. Watson
Richard A. Fuller
Liana N. Joseph
Tara G. Martin
Hugh P. Possingham
Oscar Venter
Josie Carwardine
author_facet Tal Polak
James E. M. Watson
Richard A. Fuller
Liana N. Joseph
Tara G. Martin
Hugh P. Possingham
Oscar Venter
Josie Carwardine
author_sort Tal Polak
collection DOAJ
description The Convention on Biological Diversity (CBD)'s strategic plan advocates the use of environmental surrogates, such as ecosystems, as a basis for planning where new protected areas should be placed. However, the efficiency and effectiveness of this ecosystem-based planning approach to adequately capture threatened species in protected area networks is unknown. We tested the application of this approach in Australia according to the nation's CBD-inspired goals for expansion of the national protected area system. We set targets for ecosystems (10% of the extent of each ecosystem) and threatened species (variable extents based on persistence requirements for each species) and then measured the total land area required and opportunity cost of meeting those targets independently, sequentially and simultaneously. We discover that an ecosystem-based approach will not ensure the adequate representation of threatened species in protected areas. Planning simultaneously for species and ecosystem targets delivered the most efficient outcomes for both sets of targets, while planning first for ecosystems and then filling the gaps to meet species targets was the most inefficient conservation strategy. Our analysis highlights the pitfalls of pursuing goals for species and ecosystems non-cooperatively and has significant implications for nations aiming to meet their CBD mandated protected area obligations.
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spelling doaj.art-d47fe282992d4ba7820de1583623dd4f2022-12-21T20:20:52ZengThe Royal SocietyRoyal Society Open Science2054-57032015-01-012410.1098/rsos.150107150107Efficient expansion of global protected areas requires simultaneous planning for species and ecosystemsTal PolakJames E. M. WatsonRichard A. FullerLiana N. JosephTara G. MartinHugh P. PossinghamOscar VenterJosie CarwardineThe Convention on Biological Diversity (CBD)'s strategic plan advocates the use of environmental surrogates, such as ecosystems, as a basis for planning where new protected areas should be placed. However, the efficiency and effectiveness of this ecosystem-based planning approach to adequately capture threatened species in protected area networks is unknown. We tested the application of this approach in Australia according to the nation's CBD-inspired goals for expansion of the national protected area system. We set targets for ecosystems (10% of the extent of each ecosystem) and threatened species (variable extents based on persistence requirements for each species) and then measured the total land area required and opportunity cost of meeting those targets independently, sequentially and simultaneously. We discover that an ecosystem-based approach will not ensure the adequate representation of threatened species in protected areas. Planning simultaneously for species and ecosystem targets delivered the most efficient outcomes for both sets of targets, while planning first for ecosystems and then filling the gaps to meet species targets was the most inefficient conservation strategy. Our analysis highlights the pitfalls of pursuing goals for species and ecosystems non-cooperatively and has significant implications for nations aiming to meet their CBD mandated protected area obligations.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.150107ecosystem-based targetssurrogacyspatial prioritizationgeographical range sizeadequacyrepresentationcbd aichi targets
spellingShingle Tal Polak
James E. M. Watson
Richard A. Fuller
Liana N. Joseph
Tara G. Martin
Hugh P. Possingham
Oscar Venter
Josie Carwardine
Efficient expansion of global protected areas requires simultaneous planning for species and ecosystems
Royal Society Open Science
ecosystem-based targets
surrogacy
spatial prioritization
geographical range size
adequacy
representation
cbd aichi targets
title Efficient expansion of global protected areas requires simultaneous planning for species and ecosystems
title_full Efficient expansion of global protected areas requires simultaneous planning for species and ecosystems
title_fullStr Efficient expansion of global protected areas requires simultaneous planning for species and ecosystems
title_full_unstemmed Efficient expansion of global protected areas requires simultaneous planning for species and ecosystems
title_short Efficient expansion of global protected areas requires simultaneous planning for species and ecosystems
title_sort efficient expansion of global protected areas requires simultaneous planning for species and ecosystems
topic ecosystem-based targets
surrogacy
spatial prioritization
geographical range size
adequacy
representation
cbd aichi targets
url https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.150107
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