Sayer, Catherine A. and Fernando, Eresha and Jimenez, Randall R. and Macfarlane, Nicholas B. W. and Rapacciuolo, Giovanni and Böhm, Monika and Brooks, Thomas M. and MacBeath, Topiltzin Contreras and Cox, Neil A. and Harrison, Ian and Hoffmann, Michael and Jenkins, Richard and Smith, Kevin G. and Vie, Jean-Christophe and Abbott, John C. and Allen, David J. and Allen, Gerald R. and Barrios, Violeta and Boudot, Jean-Pierre and Carrizo, Savrina F. and Charvet, Patricia and Clausnitzer, Viola and Congiu, Leonardo and Crandall, Keith A. and Cumberlidge, Neil and Cuttelod, Annabelle and Dalton, James and Daniels, Adam G. and Grave, Sammy De and Knijf, Geert De and Dijkstra, Klaas-Douwe B. and Dow, Rory A. and Freyhof, Jorg and Garcia, Nieves and Gessner, Joern and Getahun, Abebe and Gibson, Claudine and Gollock, Matthew J. and Grant, Michael I. and Groom, Alice E. R. and Hammer, Michael P. and Hammerson, Geoffrey A. and Taylor, Craig Hilton and Hodgkinson, Laurel and Holland, Robert A. and Jabado, Rima W. and Bignoli, Diego Juffe and Kalkman, Vincent J. and Karimov, Bakhtiyor K. and Kipping, Jens and Kottelat, Maurice and Laleye, Philippe A. and Larson, Helen K. and Lintermans, Mark and Lozano, Federico and Ludwig, Arne and Lyons, Timothy J. and Tome, Laura Maiz and Molur, Sanjay and Ng, Heok Hee and Numa, Catherine and Newton, Amy F. Palmer and Pike, Charlotte and Pippard, Helen E. and Polaz, Carla N. M. and Pollock, Caroline M. and Raghavan, Rajeev and Rand, Peter S. and Ravelomanana, Tsilavina and Reis, Roberto E. and Rigby, Cassandra L. and Scott, Janet A. and Skelton, Paul H. and Sloat, Matthew R. and Snoeks, Jos and Stiassny, Melanie L. J. and Tan, Heok Hui and Taniguchi, Yoshinori and Thorstad, Eva B. and Tognelli, Marcelo F. and Torres, Armi G. and Torres, Yan and Tweddle, Denis and Watanabe, Katsutoshi and Westrip, James R. S. and Wright, Emma G. E. and E, Zhang and Darwall, William R. T. (2025) One-quarter of freshwater fauna threatened with extinction. p. 26.
Full text not available from this repository. (Request a copy)Abstract
Freshwater ecosystems are highly biodiverse1 and important for livelihoods and economic development2, but are under substantial stress3. To date, comprehensive global assessments of extinction risk have not included any speciose groups primarily living in freshwaters. Consequently, data from predominantly terrestrial tetrapods4,5 are used to guide environmental policy6 and conservation prioritization7, whereas recent proposals for target setting in freshwaters use abiotic factors8,9,10,11,12,13. However, there is evidence14,15,16,17 that such data are insufficient to represent the needs of freshwater species and achieve biodiversity goals18,19. Here we present the results of a multi-taxon global freshwater fauna assessment for The IUCN Red List of Threatened Species covering 23,496 decapod crustaceans, fishes and odonates, finding that one-quarter are threatened with extinction. Prevalent threats include pollution, dams and water extraction, agriculture and invasive species, with overharvesting also driving extinctions. We also examined the degree of surrogacy of both threatened tetrapods and freshwater abiotic factors (water stress and nitrogen) for threatened freshwater species. Threatened tetrapods are good surrogates when prioritizing sites to maximize rarity-weighted richness, but poorer when prioritizing based on the most range-restricted species. However, they are much better surrogates than abiotic factors, which perform worse than random. Thus, although global priority regions identified for tetrapod conservation are broadly reflective of those for freshwater faunas, given differences in key threats and habitats, meeting the needs of tetrapods cannot be assumed sufficient to conserve freshwater species at local scales.
| Item Type: | Articles |
|---|---|
| Keywords: | Freshwater ecosystems, Economic Development, Livelihoods, Fauna, IUCN, Conservation, Biodiversity |
| Subjects: | Biodiversity |
| Depositing User: | Kokila ICSF Krish |
| Date Deposited: | 01 Mar 2025 08:02 |
| Last Modified: | 01 Mar 2025 08:02 |
| URI: | http://icsfarchives.net/id/eprint/21475 |
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