1. Subterranean Research and Groundwater Ecology (SuRGE) Group, Trace and Environmental DNA (TrEnD) Lab, School of Molecular and Life Sciences Curtin University Perth Western Australia Australia
2. Department of Chemistry, Life Sciences and Environmental Sustainability University of Parma Parma Italy
3. Molecular Ecology Group (MEG), Water Research Institute (CNR‐IRSA) National Research Council Verbania Pallanza Italy
4. Laboratory for Integrative Biodiversity Research (LIBRe), Finnish Museum of Natural History (LUOMUS) University of Helsinki Helsinki Finland
5. National Biodiversity Future Center Palermo Italy
6. Department of Aquatic Ecology Eawag, Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland
7. Department of Evolutionary Biology and Environmental Studies University of Zurich Zürich Switzerland
8. Department of Organisms and Ecosystems Research National Institute of Biology Ljubljana Slovenia
9. Department for Environmental Science University of Nova Gorica Nova Gorica Slovenia
10. SubBio Lab, Biotechnical Faculty, Department of Biology University of Ljubljana Ljubljana Slovenia
11. Faculty of Environment, Department of Environment Ionian University Zakynthos Greece
12. Biotechnology and Aquaculture (IMBBC), Thalassocosmos, Institute of Marine Biology Hellenic Centre for Marine Research (HCMR) Heraklion Greece
13. Department of Functional & Evolutionary Ecology University of Vienna Vienna Austria
14. Estación Biologica de Doñana (EBD‐CSIC) Seville Spain
15. Department of Life Sciences and Systems Biology University of Turin Turin Italy
16. School of Natural Sciences Macquarie University Sydney New South Wales Australia
17. International Groundwater Resources Assessment Center (IGRAC) Delft The Netherlands
18. Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Univ Lyon Villeurbanne France
19. Department of Biological Sciences The University of Alabama in Huntsville Huntsville Alabama USA
20. School of Life and Health Sciences Roehampton University London UK
21. Ecology and Conservation Research Laboratory (Eco/Con Lab), Department of Biological Sciences, College of Science and Mathematics University of Southern Mindanao, Kabacan Cotabato Philippines
22. Laboratory of Subterranean Studies (LES), Department of Ecology and Evolutionary Biology Federal University of São Carlos São Carlos Brazil
23. Emil Racovita Institute of Speleology Cluj‐Napoca Romania
24. Trace and Environmental DNA (TrEnD) Lab, School of Molecular and Life Sciences Curtin University Perth Western Australia Australia
25. Departamento de Biologia Animal, and Centre for Ecology, Evolution and Environmental Changes & CHANGE – Global Change and Sustainability Institute, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
26. South Australian Museum, North Terrace Adelaide South Australia Australia
27. Department of Ecology and Evolutionary Biology, School of Biological Sciences and Environment Institute The University of Adelaide Adelaide South Australia Australia
28. Department of Environmental Science American University Washington DC USA
29. Research Institute on Terrestrial Ecosystems of the National Research Council of Italy (IRET CNR) Florence Italy
30. Department of Life, Health and Environmental Sciences (MESVA) University of L'Aquila L'Aquila Italy
31. School of Biological Sciences The University of Adelaide Adelaide South Australia Australia
32. Lincoln Agritech Ltd, Ruakura, Kirikiriroa Aotearoa New Zealand
33. School of Biological Sciences University of Western Australia Crawley Western Australia Australia
34. Western Australian Museum Welshpool Western Australia Australia
35. Centro de Estudos em Biologia Subterrânea, Departamento de Ecologia e Conservação, Instituto de Ciências Naturais Universidade Federal de Lavras Lavras Minas Gerais Brazil
36. Department of Fisheries Resource Management Kerala University of Fisheries and Ocean Studies Kochi India
37. Coral Conservation and Research Group, Trace and Environmental DNA (TrEnD) Lab, School of Molecular and Life Sciences Curtin University Bentley Western Australia Australia
38. Rohde Environmental Consulting, LLC Seattle Washington USA
39. Graduate Program in Environmental Science State University of New York College of Environmental Science and Forestry Syracuse New York USA
40. Department of Ecology and Hydrology University of Murcia Murcia Spain
41. Department of Lake Research Helmholtz Centre for Environmental Research Magdeburg Germany
42. Water & Environment Group Institute of Environmental Science & Research Ltd. Christchurch New Zealand
43. School of Science University of Waikato Hamilton New Zealand
44. Canadian High Arctic Research Station Polar Knowledge Canada Cambridge Bay Nunavut Canada
45. Department of Environmental Science, Policy & Management University of California Berkeley California USA
46. School of Molecular and Life Sciences Curtin University Bentley Western Australia Australia
47. Lundbeck Foundation GeoGenetics Centre Globe Institute, University of Copenhagen Copenhagen Denmark
48. Institute of Geography Johannes Gutenberg‐University Mainz Mainz Germany