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A flexible tool to prioritize areas for conservation combining landscape units, measures of biodiversity, and threats

Citation

Ondei, S and Brook, BW and Buettel, JC, A flexible tool to prioritize areas for conservation combining landscape units, measures of biodiversity, and threats, Ecosphere, 10, (9) Article e02859. ISSN 2150-8925 (2019) [Refereed Article]


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Copyright Statement

Copyright: 2019 The Authors. Licensed under Creative Commons Attribution 3.0 Unported (CC BY 3.0) http://creativecommons.org/licenses/by/3.0/

DOI: doi:10.1002/ecs2.2859

Abstract

Expanding the reserve system is a key strategy to enhance biodiversity protection. Yet, conservation outcomes can be undermined by underrepresentation of some habitats and opportunistic placement of protected areas. Irreplaceability and vulnerability, the key principles of conservation, should thus be combined within a bioregionalization framework to implement protection in the habitats that most need it. We proposed a simple and flexible method to prioritize bioregions for conservation based on these principles and used it to rank the 85 bioregions of the Australian continent. To do so, we quantified biodiversity values and threats in each bioregion by gathering open‐access data on species, landscapes, and land use. Bioregions were then ranked using a set of customizable scenarios, including ecologically meaningful combinations of measures of irreplaceability and vulnerability. To identify biodiverse areas under threat but potentially overlooked, we compared our results with the location of already established biodiversity hotspots (i.e., areas identified as important for biodiversity and under threat). We found that bioregions with the highest biodiversity values are predominantly located in the southwest, east, and north of the continent. Similarly, threats, particularly land clearance, are concentrated along the east coast and in the southwest. When ranking bioregions using scenarios including both threats and biodiversity values, the majority (75%) of the highest‐ranking bioregions were already included in biodiversity hotspots. For five of these bioregions, the proportion of protected land to date still falls below the 17% recommended by the Convention on Biological Diversity and thus they likely require prompt prioritization and intervention. The method proposed can support ongoing monitoring and prioritization of land units for conservation. Its simplicity and flexibility mean it can be easily adopted for different areas and adjusted to local priorities.

Item Details

Item Type:Refereed Article
Keywords:Australia, bioregionalization, Interim Biogeographic Regionalization for Australia, invasive species, irreplaceability, land-use change, nature conservation, threatened species, vulnerability
Research Division:Environmental Sciences
Research Group:Environmental Science and Management
Research Field:Conservation and Biodiversity
Objective Division:Environment
Objective Group:Ecosystem Assessment and Management
Objective Field:Ecosystem Assessment and Management at Regional or Larger Scales
UTAS Author:Ondei, S (Dr Stefania Ondei)
UTAS Author:Brook, BW (Professor Barry Brook)
UTAS Author:Buettel, JC (Dr Jessie Buettel)
ID Code:136334
Year Published:2019
Deposited By:Plant Science
Deposited On:2019-12-16
Last Modified:2020-02-28
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