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WEGE Index

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The Weighted Endemism including Global Endangerment index (“WEGE index”) is a metric that ranks the biodiversity importance between sites on a continuous scale..[1]. It uses information on the species distribution's range and extinction risk to generate a score for each site. The WEGE index highlights the same areas as the Key Biodiversity Areas (KBAs) [1]. To calculate each site's score uses the following formula:

The WEGE index formula

Where WE correspond to the Weighted endemism value (WEi) [2] for each species (i) multiplied by its probability of extinction value (ERi)[3]

The WEGE index can be calculated using the R package WEGE[4]

References[edit]

  1. 1.0 1.1 [Farooq, H., Azevedo, J., Belluardo, F., Nanvonamuquitxo, C., Bennett, D., Moat, J., Soares, A., Faurby, S. and Antonelli, A., 2020. WEGE: A new metric for ranking locations for biodiversity conservation. Diversity and Distributions, 26(11), pp.1456-1466. https://doi.org/10.1111/ddi.13148]
  2. [Crisp, M.D., Laffan, S., Linder, H.P. and Monro, A.N.N.A., 2001. Endemism in the Australian flora. Journal of Biogeography, 28(2), pp.183-198. https://doi.org/10.1046/j.1365-2699.2001.00524.x]
  3. [Harnik, P.G., Simpson, C. and Payne, J.L., 2012. Long-term differences in extinction risk among the seven forms of rarity. Proceedings of the Royal Society B: Biological Sciences, 279(1749), pp.4969-4976. https://doi.org/10.1098/rspb.2012.1902]
  4. [Farooq, H., Azevedo, J., Belluardo F., Nanvonamuquitxo, C., Bennett, D., Moat, J., Soares, A., Faurby, S. & Antonelli, A. (2020). https://cran.r-project.org/web/packages/WEGE/index.html]


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