Off the conservation radar: the hidden story of Europe's tiny pea clams (Bivalvia: Sphaeriidae)

• DOI: 10.1007/s10531-024-02921-x
• Publication Date: 2024-08-20T12:02:22Z
• Authors: Dariusz Halabowski; Ronaldo Sousa; Manuel Lopes-Lima; Ian Killeen; David C Aldridge; Katarzyna Zając; Jon Hamner Mageroy; Daniel Alan Cossey; Maria Urbańska; Martin Österling; Vincent Prié
• Keywords: Ekologi; Pill clams; Ecology; Fingernail clams; 3103 Ecology; 15 Life on Land; Treats; Knowledge gaps; VDP::Zoologiske og botaniske fag: 480; 4104 Environmental Management; 41 Environmental Sciences; Miljövetenskap; Sphaeriinae; 4101 Climate Change Impacts and Adaptation; VDP::Zoology and botany: 480; Conservation roadmap; Environmental Sciences; 31 Biological Sciences

Abstract This study highlights the conservation problems faced by tiny freshwater bivalves of family Sphaeriidae, also known as pea, pill, or fingernail clams (or mussels) in Europe. Despite their global distribution, assumed ecological importance, and potential uses, basic knowledge about taxonomy, biology, ecology is very limited much lower than for larger bivalve taxa. Immediate scientific priorities are required to fill gaps regarding genetic diversity, reproductive cycle, ecosystem functions, population trends. Such fundamental necessary identify specific threats develop appropriate actions. Deploying environmental DNA analysis at a large scale could be valuable way distribution strengthen monitoring areas where local taxonomic lacking. Until taxon-specific management plans can developed, we recommend that efforts concentrate on general protection restoration wetland habitats, implementing pollution control measures, managing invasive species. These actions should complemented community engagement through citizen science initiatives. Additionally, prioritising data collection existing updating statuses (Red Lists) based comprehensive assessments will crucial. Implementing these provide starting point broader ecosystems, thus benefiting pea other interconnected species within habitats.