The Moravian Gate as route of migration of thermophilous bee species to Poland: fact or myth? A case study in the “Góra Gipsowa” steppe reserve and other habitats near Kietrz Journal title: Polish Journal of Entomology; Polskie Pismo Entomologiczne Authors: JÓZEF BANASZAK, LUCYNA TWERD, ANNA SOBIERAJ-BETLIŃSKA, BARBARA KILIŃSKA Subject(s):