Biodiversity indicators: the choice of values and measures

Duelli, Peter; Obrist, Martin К.

doi:10.1016/s0167-8809(03)00072-0

Cited by 326 publications

(238 citation statements)

References 31 publications

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“…Key species or guilds that are representative of different functional groups are known in most systems and appropriate surrogates can therefore be selected. Despite recognized limitations 31 , the application of the surrogate concept is widely applied in related fields including regulatory toxicity testing 28,29,32,33 and environmental monitoring [34][35][36] . In addition, the risk assessment may consider species with special aesthetic or cultural value or species classified as threatened or endangered.…”

Section: Species Selectionmentioning

confidence: 99%

Assessment of risk of insect-resistant transgenic crops to nontarget arthropods

et al. 2008

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Section: Species Selectionmentioning

confidence: 99%

Assessment of risk of insect-resistant transgenic crops to nontarget arthropods

et al. 2008

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“…It is a complex notion, difficult to measure explicitly (Gillespie et al 2008;Duro et al 2007). Various indicators are used to assess the status and trends of components of biodiversity, measure pressures, and quantify biodiversity loss at the level of genes, populations, species, and ecosystems, at various scales (Butchart et al 2010;EEA 2007;Duelli and Obrist 2003). Several sets of such indicators have been proposed by organizations, scientists, and policy makers (Feld et al 2009;Strand et al 2007;EEA 2007;Kati et al 2004;Lindenmayer et al 2000;Jonsson and Jonsell 1999).…”

Section: Introductionmentioning

confidence: 99%

Remote sensing for biodiversity monitoring: a review of methods for biodiversity indicator extraction and assessment of progress towards international targets

2015

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Recognizing the imperative need for biodiversity protection, the Convention on Biological Diversity (CBD) has recently established new targets towards 2020, the so-called Aichi targets, and updated proposed sets of indicators to quantitatively monitor the progress towards these targets. Remote sensing has been increasingly contributing to timely, accurate, and cost-effective assessment of biodiversity-related characteristics and functions during the last years. However, most relevant studies constitute individual research efforts, rarely related with the extraction of widely adopted CBD biodiversity indicators. Furthermore, systematic operational use of remote sensing data by managing authorities has still been limited. In this study, the Aichi targets and the related CBD indicators whose monitoring can be facilitated by remote sensing are identified. For each headline indicator a number of recent remote sensing approaches able for the extraction of related properties are reviewed. Methods cover a wide range of fields, including: habitat extent and condition monitoring; species distribution; pressures from unsustainable management, pollution and climate change; ecosystem service monitoring; and conservation status assessment of protected areas. The advantages and limitations of different remote sensing data and algorithms are discussed. Sorting of the methods based on their reported accuracies is attempted, when possible. The extensive literature survey aims at reviewing highly performing methods that can be used for large-area, effective, and timely biodiversity assessment, to encourage the more systematic use of remote sensing solutions in monitoring progress towards the Aichi targets, and to decrease the gaps between the remote sensing and management communities.

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“…However, complete surveys are expensive, time-consuming and often prevented by the lack of taxonomic experts. Therefore, indicator species are often used instead of complete surveys to locate sites with high species richness and/or conservation value (Simberloff 1998, Duelli & Obrist 2003, Fleishman & Murphy 2009). Many of the indicator species used are plants or invertebrates, the latter being used principally in marine and aquatic environments and recently also in terrestrial environments.…”

Section: Introductionmentioning

confidence: 99%

High-accuracy sampling of saproxylic diversity indicators at regional scales with pheromones: The case of Elater ferrugineus (Coleoptera, Elateridae)

Andersson¹,

Bergman²,

Андерссон³

et al. 2014

Biological Conservation

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The rare beetle Elater ferrugineus was sampled at 47 sites in the county of Östergötland, Sweden by means of pheromone-baited traps to assess its value as an indicator species for hollow oak stands rich in rare saproxylic beetle species. In addition, Osmoderma eremita was also sampled with pheromone baits. These data were then compared against species survey data collected at the same sites by pitfall and window traps. Both species co-occur with many Red Listed saproxylic beetles, with E. ferrugineus being a somewhat better indicator for the rarest species. The conservation value of a site (measured as Red List points or number of Red Listed species) increased with the number of specimens of E. ferrugineus and O. eremita caught. Accuracy of sampling by means of pheromone trapping turned out to be radically different for the two model species. E. ferrugineus traps put out during July obtained full accuracy after only 6 days, whereas O. eremita traps needed to be out from early July to mid-August in order to obtain full accuracy with one trap per site. By using E. ferrugineus, or preferably both species, as indicator species, accuracy would increase and costs decrease for saproxylic biodiversity sampling, monitoring and identification of hotspots.

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Biodiversity indicators: the choice of values and measures

Cited by 326 publications

References 31 publications

Assessment of risk of insect-resistant transgenic crops to nontarget arthropods

Assessment of risk of insect-resistant transgenic crops to nontarget arthropods

Remote sensing for biodiversity monitoring: a review of methods for biodiversity indicator extraction and assessment of progress towards international targets

High-accuracy sampling of saproxylic diversity indicators at regional scales with pheromones: The case of Elater ferrugineus (Coleoptera, Elateridae)

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