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Bumblebees: their behaviour and ecology.
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TLDR
This book discusses social organisation and conflict in bumblebee communities, foraging economics, and the effects of introduced bees on native ecosystems.Abstract:
1. Introduction 2. Thermoregulation 3. Social organisation and conflict 4. Finding a mate 5. Natural enemies 6. Foraging Economics 7. Foraging range 8. Exploitation of patchy resources 9. Choice of flower species 10. Intraspecific floral choices 11. Communication during foraging 12. Competition in bumblebee communities 13. Bumblebees as pollinators 14. Conservation 15. Bumblebees abroad effects of introduced bees on native ecosystemsread more
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Journal ArticleDOI
A century of advances in bumblebee domestication and the economic and environmental aspects of its commercialization for pollination
TL;DR: L'acceptation rapide des bourdons et leur vaste introduction en tant que pollinisateurs peut s'expliquer par les avantages economiques par rapport aux techniques plus anciennes, souvent artificielles are presente l'evolution dans l'expansion mondiale.
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Bumblebee vulnerability and conservation world-wide
TL;DR: There is evidence that some bumblebee species are declining in Europe, North America, and Asia and it is recommended that live bumblebees should not be moved across continents or oceans for commercial pollination until proven safe.
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Causes of rarity in bumblebees
TL;DR: Overall, Fabaceae appear to be the major pollen source for most bumblebee species, but long-tongued, late emerging species such as Bombus ruderatus, Bombus humilis and Bombus subterraneus specialize heavily in gathering pollen from Fabaceae, and this group of bumblebees species have all declined.
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Semi‐natural grasslands as population sources for pollinating insects in agricultural landscapes
Erik Öckinger,Henrik G. Smith +1 more
TL;DR: It is suggested that preservation of the remaining semi-natural grasslands or re-creation of flower-rich grasslands is essential to sustain the abundance and diversity of insect pollinators in intensively farmed agricultural landscapes.
Journal ArticleDOI
Decline of bumble bees (Bombus) in the North American Midwest
TL;DR: It is demonstrated that half of the bumble bee species found historically in Illinois have been locally extirpated or have suffered declines, supporting observations of broader declines in North America.