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Abstract
With the biodiversity crisis continuing unchecked, we need to establish levels and drivers of extinction risk, and reassessments over time, to effectively allocate conservation resources and track progress towards global conservation targets. Given that threat appears particularly high in freshwaters, we assessed the extinction risk of 1428 randomly selected freshwater molluscs using the IUCN Red List Categories and Criteria, as part of the Sampled Red List Index project. We show that close to one-third of species in our sample are estimated to be threatened with extinction, with highest levels of threat in the Nearctic, Palearctic and Australasia and among gastropods. Threat levels were higher in lotic than lentic systems. Pollution (chemical and physical) and the modification of natural systems (e.g. through damming and water abstraction) were the most frequently reported threats to freshwater molluscs, with some regional variation. Given that we found little spatial congruence between species richness patterns of freshwater molluscs and other freshwater taxa, apart from crayfish, new additional conservation priority areas emerged from our study. We discuss the implications of our findings for freshwater mollusc conservation, the adequacy of a sampled approach and important next steps to estimate trends in freshwater mollusc extinction risk over time.
Keywords
GLOBAL DIVERSITY, BIODIVERSITY CONSERVATION, MUSSELS, EXTINCTION, PATTERNS, BIVALVIA, TAXONOMY, THREATS, GASTROPODS, UNIONOIDA, IUCN Red List, Extinction risk, SRLI, Bivalves, Gastropods, Congruence

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MLA
Bohm, Monika, et al. “The Conservation Status of the World’s Freshwater Molluscs.” HYDROBIOLOGIA, Springer, 2020, doi:10.1007/s10750-020-04385-w.
APA
Bohm, M., Dewhurst-Richman, N. I., Seddon, M., Ledger, S. E. H., Albrecht, C., Allen, D., … Collen, B. (2020). The conservation status of the world’s freshwater molluscs. HYDROBIOLOGIA. https://doi.org/10.1007/s10750-020-04385-w
Chicago author-date
Bohm, Monika, Nadia I. Dewhurst-Richman, Mary Seddon, Sophie E. H. Ledger, Christian Albrecht, David Allen, Arthur E. Bogan, et al. 2020. “The Conservation Status of the World’s Freshwater Molluscs.” HYDROBIOLOGIA. https://doi.org/10.1007/s10750-020-04385-w.
Chicago author-date (all authors)
Bohm, Monika, Nadia I. Dewhurst-Richman, Mary Seddon, Sophie E. H. Ledger, Christian Albrecht, David Allen, Arthur E. Bogan, Jay Cordeiro, Kevin S. Cummings, Annabelle Cuttelod, Gustavo Darrigran, Will Darwall, Zoltan Feher, Claudine Gibson, Daniel L. Graf, Frank Kohler, Manuel Lopes-Lima, Guido Pastorino, Kathryn E. Perez, Kevin Smith, Dirk Van Damme, Maxim V. Vinarski, Ted von Proschwitz, Thomas von Rintelen, David C. Aldridge, Neelavar A. Aravind, Prem B. Budha, Cristhian Clavijo, Do Van Tu, Olivier Gargominy, Mohamed Ghamizi, Martin Haase, Craig Hilton-Taylor, Paul D. Johnson, Umit Kebapci, Jasna Lajtner, Charles N. Lange, Dwayne A. W. Lepitzki, Alberto Martinez-Orti, Evelyn A. Moorkens, Eike Neubert, Caroline M. Pollock, Vincent Prie, Canella Radea, Rina Ramirez, Marian A. Ramos, Sonia B. Santos, Rajko Slapnik, Mikhail O. Son, Anna-Sofie Stensgaard, and Ben Collen. 2020. “The Conservation Status of the World’s Freshwater Molluscs.” HYDROBIOLOGIA. doi:10.1007/s10750-020-04385-w.
Vancouver
1.
Bohm M, Dewhurst-Richman NI, Seddon M, Ledger SEH, Albrecht C, Allen D, et al. The conservation status of the world’s freshwater molluscs. HYDROBIOLOGIA. 2020;
IEEE
[1]
M. Bohm et al., “The conservation status of the world’s freshwater molluscs,” HYDROBIOLOGIA, 2020.
@article{8689344,
  abstract     = {With the biodiversity crisis continuing unchecked, we need to establish levels and drivers of extinction risk, and reassessments over time, to effectively allocate conservation resources and track progress towards global conservation targets. Given that threat appears particularly high in freshwaters, we assessed the extinction risk of 1428 randomly selected freshwater molluscs using the IUCN Red List Categories and Criteria, as part of the Sampled Red List Index project. We show that close to one-third of species in our sample are estimated to be threatened with extinction, with highest levels of threat in the Nearctic, Palearctic and Australasia and among gastropods. Threat levels were higher in lotic than lentic systems. Pollution (chemical and physical) and the modification of natural systems (e.g. through damming and water abstraction) were the most frequently reported threats to freshwater molluscs, with some regional variation. Given that we found little spatial congruence between species richness patterns of freshwater molluscs and other freshwater taxa, apart from crayfish, new additional conservation priority areas emerged from our study. We discuss the implications of our findings for freshwater mollusc conservation, the adequacy of a sampled approach and important next steps to estimate trends in freshwater mollusc extinction risk over time.},
  author       = {Bohm, Monika and Dewhurst-Richman, Nadia I. and Seddon, Mary and Ledger, Sophie E. H. and Albrecht, Christian and Allen, David and Bogan, Arthur E. and Cordeiro, Jay and Cummings, Kevin S. and Cuttelod, Annabelle and Darrigran, Gustavo and Darwall, Will and Feher, Zoltan and Gibson, Claudine and Graf, Daniel L. and Kohler, Frank and Lopes-Lima, Manuel and Pastorino, Guido and Perez, Kathryn E. and Smith, Kevin and Van Damme, Dirk and Vinarski, Maxim V. and von Proschwitz, Ted and von Rintelen, Thomas and Aldridge, David C. and Aravind, Neelavar A. and Budha, Prem B. and Clavijo, Cristhian and Van Tu, Do and Gargominy, Olivier and Ghamizi, Mohamed and Haase, Martin and Hilton-Taylor, Craig and Johnson, Paul D. and Kebapci, Umit and Lajtner, Jasna and Lange, Charles N. and Lepitzki, Dwayne A. W. and Martinez-Orti, Alberto and Moorkens, Evelyn A. and Neubert, Eike and Pollock, Caroline M. and Prie, Vincent and Radea, Canella and Ramirez, Rina and Ramos, Marian A. and Santos, Sonia B. and Slapnik, Rajko and Son, Mikhail O. and Stensgaard, Anna-Sofie and Collen, Ben},
  issn         = {0018-8158},
  journal      = {HYDROBIOLOGIA},
  keywords     = {GLOBAL DIVERSITY,BIODIVERSITY CONSERVATION,MUSSELS,EXTINCTION,PATTERNS,BIVALVIA,TAXONOMY,THREATS,GASTROPODS,UNIONOIDA,IUCN Red List,Extinction risk,SRLI,Bivalves,Gastropods,Congruence},
  language     = {eng},
  pages        = {24},
  publisher    = {Springer},
  title        = {The conservation status of the world's freshwater molluscs},
  url          = {http://dx.doi.org/10.1007/s10750-020-04385-w},
  year         = {2020},
}

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