Literature
- Bossert, S. 2014. The high alpine bee fauna (Hymenoptera: Apoidea) of the Zillertal Alps, Austria. Biodivers Data J. 2014; (2): e1115.
- Franzén, M. and Molander, M. 2012. How threatened are alpine environments? a cross taxonomic study. Biodiversity Conservation 21: 517-526.
- Franzén, M. and Ockinger, E. 2011. Climate-driven changes in pollinator assemblages during the last 60 years in an Arctic mountain region in Northern Scandinavia. Journal of insect conservation 16: 227-238.
- Goulson, D., Lye, G.C. and Darvil, B. 2008. Decline and conservation of bumble bees. Annual Review of Entomology 53: 11.1–11.18.
- Konovaleva, I. 2007. The first record of the rare oligolectic bumblebee Bombus gerstaeckeri Morawitz (Hymenoptera: Apidae: Bombini) from Ukraine. Ann. soc. entomol. Fr. (n.s.), 2007, 43 (4) : 441-443.
- Mudri-Stoinić, S., Andrić, A., Józan, Z., Vujić, A. 2012. Pollinator diversity (Hymenoptera and Diptera) in semi-natural habitats in Serbia during summer. Arch. Biol. Sci., Belgrade, 64 (2), 777-786.
- Nieto, A., Roberts, S.P.M., Kemp, J., Rasmont, P., Kuhlmann, M., García Criado, M., Biesmeijer, J.C., Bogusch, P., Dathe, H.H., De la Rúa, P., De Meulemeester, T., Dehon, M., Dewulf, A., Ortiz-Sánchez, F.J., Lhomme, P., Pauly, A., Potts, S.G., Praz, C., Quaranta, M., Radchenko, V.G., Scheuchl, E., Smit, J., Straka, J., Terzo, M., Tomozii, B., Window, J. and Michez, D. 2014. European Red List of bees. Luxembourg: Publication Office of the European Union.
- Ponchau, O., Iserbyt, S., Verhaeghe, J.C. and Rasmont, P. 2006. Is the caste-ratio of the oligolectic bumblebee Bombus gerstaeckeri Morawitz biased to queens (Hymenoptera: Apidae)? Annales de la Société entomologique de France (n.s.) 42(2): 207-214.
- Rasmont, P. and Iserbyt, I. 2010. 2012. Atlas of the European Bees: genus Bombus. STEP Project. Atlas Hymenoptera. Mons Available at: http://www.zoologie.umh.ac.be//hymenoptera/page.asp?ID=169.
- Rasmont, P. and Iserbyt, S. 2012. The Bumblebees Scarcity Syndrome: Are heat waves leading to local extinctions of bumblebees (Hymenoptera: Apidae: Bombus)? Annales de la Société entomologique de France (N.S.) 48(3-4): 275-280.
- Rasmont, P., Franzen, M., Lecocq, T., Harpke, A., Castro, L., Cederberg, B., Dvořák, L., Fitzpatrick, U., Gonseth, Y., Haubruge, E., Mahé, G., Manino, A., Neumayer, J., Ødegaard, F., Paukkunen, J., Pawlikowski, T., Reemer, M. .
- Rasmont, P., Roberts, S., Cederberg, B., Radchenko, V. & Michez, D. 2015. Bombus gerstaeckeri. The IUCN Red List of Threatened Species 2015: e.T13340374A57347749. Downloaded on 13 October 2017.
- Roberts, S.P.M., Straka, J. and Schweiger, O. 2014. Climatic Risk Atlas of European Bumblebees. Pensoft publishing, Sofia (in prep.).
- Westrich, P., Frommer, U., Mandery, K., Riemann, H., Ruhnke, H., Saure, C. and Voith, J. 2008. Rote Liste der Bienen Deutschlands (Hymenoptera, Apidae) - (4. Fassung, Dezember 2007). Eucera 3: 33-87.
- Williams, P.H., Colla, S.R. and Xie, Z. 2009. Bumblebee vulnerability: common correlates of winners and losers across three continents. Conservation Biology 23: 931-940.