The Glasgow Naturalist (online 2020) Volume 27, Part 2 https://doi.org/10.37208/tgn27202 First records of tardigrades (Tardigrada) from Irish and Scottish leaf litter B. Blagden1+, *E. DeMilio2+, J.G. Hansen3 & R.M. Kristensen3 1Scottish Environment Protection Agency, Inverdee House, Baxter Street, Aberdeen AB11 9QA 2Department of Zoology, Ryan Institute, National University of Ireland Galway, University Road, Galway, Republic of Ireland 3Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark *E-mail:
[email protected] + Authors contributed equally to this work. ABSTRACT among more numerous mosses or lichens (Greaves, The findings of an investigation of the tardigrade fauna 1991; Greaves & Marley, 1994; Nattress et al., 2014). associated with beech (Fagus sylvatica) leaf litter in the To date no studies on tardigrades associated with the leaf Republic of Ireland and Scotland are reported. The litter habitat have been undertaken in Ireland or present study is the first to specifically target this Scotland. The present study therefore represents the first microhabitat in either country. Tardigrades were attempt to collect data on the tardigrade species extracted from 16 samples of leaf litter obtained from inhabiting leaf litter in either country. seven locations (one in Ireland and six in Scotland). Twenty five tardigrade taxa were encountered including Although it has long been known that tardigrades occur seven that represent new records for the Republic of in leaf litter (Mihelčič, 1949), globally there have been Ireland (Pseudechiniscus sp. nov., Diphascon pingue relatively few studies reporting on the abundance and group sp., Hypsibius cf. convergens, Hypsibius cf. species richness of tardigrades in this habitat (e.g.