An objective, niche-based approach to indicator species selection

Butler, Simon J., Freckleton, Robert P., Renwick, Anna R. and Norris, Ken (2012) An objective, niche-based approach to indicator species selection. Methods in Ecology and Evolution, 3 2: 317-326. doi:10.1111/j.2041-210X.2011.00173.x

Author Butler, Simon J.
Freckleton, Robert P.
Renwick, Anna R.
Norris, Ken
Title An objective, niche-based approach to indicator species selection
Journal name Methods in Ecology and Evolution   Check publisher's open access policy
ISSN 2041-210X
Publication date 2012-01-01
Year available 2012
Sub-type Article (original research)
DOI 10.1111/j.2041-210X.2011.00173.x
Open Access Status Not Open Access
Volume 3
Issue 2
Start page 317
End page 326
Total pages 10
Place of publication Oxford, United Kingdom
Publisher Wiley-Blackwell Publishing Ltd.
Language eng
Subject 1105 Dentistry
2302 Ecological Modelling
Abstract 1.Species-based indices are frequently employed as surrogates for wider biodiversity health and measures of environmental condition. Species selection is crucial in determining an indicator's metric value and hence the validity of the interpretation of ecosystem condition and function it provides, yet an objective process to identify appropriate indicator species is frequently lacking. 2.An effective indicator needs to (i) be representative, reflecting the status of wider biodiversity; (ii) be reactive, acting as early-warning systems for detrimental changes in environmental conditions; (iii) respond to change in a predictable way. We present an objective, niche-based approach for species' selection, founded on a coarse categorisation of species' niche space and key resource requirements, which ensures the resultant indicator has these key attributes. 3.We use UK farmland birds as a case study to demonstrate this approach, identifying an optimal indicator set containing 12 species. In contrast to the 19 species included in the farmland bird index (FBI), a key UK biodiversity indicator that contributes to one of the UK Government's headline indicators of sustainability, the niche space occupied by these species fully encompasses that occupied by the wider community of 62 species. 4.We demonstrate that the response of these 12 species to land-use change is a strong correlate to that of the wider farmland bird community. Furthermore, the temporal dynamics of the index based on their population trends closely matches the population dynamics of the wider community. However, in both analyses, the magnitude of the change in our indicator was significantly greater, allowing this indicator to act as an early-warning system. 5.Ecological indicators are embedded in environmental management, sustainable development and biodiversity conservation policy and practice where they act as metrics against which progress towards national, regional and global targets can be measured. Adopting this niche-based approach for objective selection of indicator species will facilitate the development of sensitive and representative indices for a range of taxonomic groups, habitats and spatial scales. © 2012 The Authors. Methods in Ecology and Evolution
Keyword Agro ecosystems
Composite indicator
Farmland birds
Land use
Niche space
Resource availability
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 12 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 14 Aug 2014, 08:40:18 EST by Gail Walter on behalf of School of Biological Sciences