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Decline and conservation of bumble bees.
Declines in bumble bee species in the past 60 years are well documented in Europe, where they are driven primarily by habitat loss and declines in floral abundance and diversity resulting fromExpand
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Causes of rarity in bumblebees
Many bumblebee (Bombus) species are thought to have declined in abundance in the last 50 years, while a small number of species remain abundant. Here we examine which factors render some BritishExpand
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Use of genetic markers to quantify bumblebee foraging range and nest density
Bumblebees (Hymenoptera: Apidae) are important pollinators of crops and wildflowers, but many species have suffered dramatic declines in recent decades. Strategies for their conservation requireExpand
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Extremely low effective population sizes, genetic structuring and reduced genetic diversity in a threatened bumblebee species, Bombus sylvarum (Hymenoptera: Apidae).
Habitat fragmentation may severely affect survival of social insect populations as the number of nests per population, not the number of individuals, represents population size, hence they may beExpand
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Effects of land use at a landscape scale on bumblebee nest density and survival
1. We have little idea how landscape-scale factors influence the success of wild bumblebee nests over time. Here for the first time we use molecular markers to estimate within-season changes in theExpand
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Estimation of bumblebee queen dispersal distances using sibship reconstruction method.
Dispersal ability is a key determinant of the propensity of an organism to cope with habitat fragmentation and climate change. Here we quantify queen dispersal in two common bumblebee species in anExpand
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Diet breadth, coexistence and rarity in bumblebees
Factors that determine the relative abundance of bumblebee species remain poorly understood, rendering management of rare and declining species difficult. Studies of bumblebee communities in theExpand
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The Trojan hives: pollinator pathogens, imported and distributed in bumblebee colonies
Summary 1. Over a million commercially produced bumblebee colonies are imported annually on a global scale for the pollination of greenhouse crops. After importation, they interact with otherExpand
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Population structure and inbreeding in a rare and declining bumblebee, Bombus muscorum (Hymenoptera: Apidae).
Owing to habitat loss populations of many organisms have declined and become fragmented. Vertebrate conservation strategies routinely consider genetic factors, but their importance in invertebrateExpand
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Niche overlap and diet breadth in bumblebees; are rare species more specialized in their choice of flowers?
The ecology of all bumblebees (Bombus spp.) is similar, yet some species have declined greatly while others remain abundant. We examine whether abundance is related to diet breadth. The floral visitsExpand
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