Apidologie 37:517 to 532. Chronic impairment of bumblebee natural foraging behaviour induced by sublethal pesticide exposure. Alford, D.V. 2014). These authors indicate that bees are likely exposed to aluminum that is present in pollen (Morgano et al. These two sites are located in conservation areas and have not been surveyed since. Bee World 67:50 to 61. For example, Mullin et al. 2013). Bulletin of Insectology 1:35–40. Seventeen of these sites were chosen based on previous records of B. affinis in various insect collections. All Canadians are invited to join in supporting and implementing this strategy for the benefit of the Rusty-patched Bumble Bee and Canadian society as a whole. ), has expanded its range (Sheffield et al. Critical habitat for the Rusty-patched Bumble Bee corresponds to any habitat with the biophysical attributes described in section 7.1.2 that is located within a 1,000 m radius of any record of the species meeting occupancy criterion 7.1.1. Conservation Biology 23:931 to 940. 40 p. [accessed August 2014]. 2002; Morandin and Winston 2003). Plowright. Queen and forager sizes of Bombus affinis Cresson (Hymenoptera: Apidae). A Landowners Guide to Conserving Native Pollinators in Ontario. Solidago canadensis - P Develop and implement a habitat management plan taking into account all local populations of the species. Figure 1 shows the historical and recent global distribution of the species. Frazier. Many specimens of the species were collected in Oka (Ouellet-Robert entomological collection, University of Montreal) and Sainte-Anne-de-Bellevue (Lyman Museum, McGill University). The Rusty–patched Bumble Bee is in flight for a longer period than are most other Bumble Bees and it visits numerous plant genera in many habitat types. Gill, R.J., O. Ramos-Rodriguez, and N.E. Biological Conservation 109:37 to 45. Detection of Deformed wing virus, a honey bee viral pathogen, in bumblebees (Bombus terrestris and Bombus pascuorum) with wing deformities. National Research Council (NRC). Matter. COSEWIC assessment and status report on the Rusty–patched Bumble Bee Bombus affinis in Canada. In French it is called bourdon à tache rousse. MacDougall, A., personal communication 2015. Very little is known about mating behaviour and colony dynamics in B. affinis. Pesticide residues and bees — a risk assessment. 2005). Foraging behavior of bumblebees (Bombus impatiens, Bombus vagans, Bombus affinis) on false foxglove (Aureolaria pedicularia). Tiedeken, K.L. Ensuring the viability of any other local population that might be discovered in the future is also necessary in order to ensure redundancyFootnote 25 of the Canadian population. In Canada, only three specimens were observed (one in 2005 and two in 2009) despite extensive targeted searches from 2005–2009. Population restoration  comprises two activities: reinforcement and reintroduction (IUCN 2013). They indicated that these values likely represent an underestimation, since they did not include insects that were ricocheted off the road, adhered to vehicles during the collision or were scavenged after the collision on the road. By extrapolating this finding to southern Ontario, the authors estimated that more than 133 million Hymenopterans are accidentally killed by vehicles every summer. 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