"Taxonomic group";Criteria;Year;Reference;nSpecies "Mammals (Mammalia)";"Expert judgement";1994;"Criel (1994)";69 "Waterbugs (Hemiptera – Gerromorpha, Nepomorpha)";"Expert judgement";1994;"Bosmans (1994)";58 "Waterbeetles (Coleoptera – Dytiscidae, Gyrinidae, Haliplidae, Noteridae, Paelobiidae)";"Expert judgement";1994;"Bosmans (1994)";139 "Carabid beetles (Coleoptera – Carabidae)";Local;1995;"Desender et al. (1995)";368 "Amphibians (Amphibia)";Local;1996;"Bauwens and Claus (1996)";14 "Dragonflies (Odonata)";Local;1996;"De Knijf and Anselin (1996)";58 "Reptiles (Reptilia)";Local;1996;"Bauwens and Claus (1996)";5 "Fishes (Pisces)";Local;1998;"Vandelannoote and Coeck (1998)";55 "Hoverflies (Diptera – Syrphidae)";Local;1998;"Meerhaeghe and Grootaert (1998)";265 "Spiders (Araneae)";"Expert judgement";1998;"Maelfait et al. (1998)";604 "Breeding birds (Aves)";"Expert judgement";1999;"Devos and Anselin (1999)";71 "Macrofungi (Ascomycota, Basidiomycota)";Local;1999;"Walleyn and Verbeken (1999)";552 "Dolichopodid flies (Diptera – Dolichopodidae)";Local;2000;"Pollet (2000)";260 "Empidid flies (Diptera – Empididae, Hybotidae, Atelestidae, Brachystomatidae)";Local;2001;"Grootaert et al. (2001)";259 "Waterbugs (Hemiptera – Gerromorpha, Nepomorpha)";Local;2001;"Bonte et al. (2001)";58 "Ants (Hymenoptera – Formicidae)";Local;2003;"Dekoninck et al. (2003)";55 "Land snails (Mollusca)";Local;2006;"van Loen et al. (2006)";120 "Waterbeetles (Coleoptera – Dytiscidae)";Local;2012;"Scheers (2012)";106 "Grasshoppers (Orthoptera)";IUCN;2013;"Lock et al. (2011)";45