Effect of Human Disturbance on Bee Communities in a Forested Ecosystem

Winfree, Rachael; Griswold, Terry; Kremen, Claire

doi:10.1111/j.1523-1739.2006.00574.x

Cited by 358 publications

(275 citation statements)

References 46 publications

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“…The observation could be explained by a combination of bee‐friendly habitats found at the study site. The Bontioli area was embedded in agriculture‐bound landscapes with a heterogeneous small‐scale matrix of fields, savanna fragments and home gardens that offered abundant and diverse floral resources to bees (Winfree, Griswold, & Kremen, 2007). In contrast, low (Nazinga area) and highly (Dano area) disturbed savannas were characterized by lower bee species abundance.…”

Section: Discussionmentioning

confidence: 99%

Impact of human disturbance on bee pollinator communities in savanna and agricultural sites in Burkina Faso, West Africa

Stein

Stenchly

Coulibaly

et al. 2018

Ecology and Evolution

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All over the world, pollinators are threatened by land‐use change involving degradation of seminatural habitats or conversion into agricultural land. Such disturbance often leads to lowered pollinator abundance and/or diversity, which might reduce crop yield in adjacent agricultural areas. For West Africa, changes in bee communities across disturbance gradients from savanna to agricultural land are mainly unknown. In this study, we monitored for the impact of human disturbance on bee communities in savanna and crop fields. We chose three savanna areas of varying disturbance intensity (low, medium, and high) in the South Sudanian zone of Burkina Faso, based on land‐use/land cover data via Landsat images, and selected nearby cotton and sesame fields. During 21 months covering two rainy and two dry seasons in 2014 and 2015, we captured bees using pan traps. Spatial and temporal patterns of bee species abundance, richness, evenness and community structure were assessed. In total, 35,469 bee specimens were caught on 12 savanna sites and 22 fields, comprising 97 species of 32 genera. Bee abundance was highest at intermediate disturbance in the rainy season. Species richness and evenness did not differ significantly. Bee communities at medium and highly disturbed savanna sites comprised only subsets of those at low disturbed sites. An across‐habitat spillover of bees (mostly abundant social bee species) from savanna into crop fields was observed during the rainy season when crops are mass‐flowering, whereas most savanna plants are not in bloom. Despite disturbance intensification, our findings suggest that wild bee communities can persist in anthropogenic landscapes and that some species even benefitted disproportionally. West African areas of crop production such as for cotton and sesame may serve as important food resources for bee species in times when resources in the savanna are scarce and receive at the same time considerable pollination service.

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Section: Discussionmentioning

confidence: 99%

Impact of human disturbance on bee pollinator communities in savanna and agricultural sites in Burkina Faso, West Africa

Stein

Stenchly

Coulibaly

et al. 2018

Ecology and Evolution

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“…Pollination is an ecosystem service because wild pollinators, in particular wild bees, contribute significantly to the pollination of a large array of crops (Morandin and Winston, 2005;Greenleaf and Kremen, 2006;Winfree et al, 2007). Commercially managed bees are also available for pollination services and are used in large commercial fields, small gardens, or enclosures such as greenhouses and screen houses (Free, 1993;Dag and Kammer, 2001).…”

Section: Introductionmentioning

confidence: 99%

Interspecific Hybridization of the Korean Native Bumblebee Bombus hypocrita sapporoensia and the European Bumblebee B. terrestris

Yoon¹,

InGyunPark²,

KyeongYongLee³

et al. 2011

International Journal of Industrial Entomology

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The large bumblebee Bombus terrestris, indigenous to Europe and adjacent areas and used extensively for high-value crop pollination, has been artificially introduced to several parts of the world. Here we show the occurrence of interspecific hybridization between the bumblebee species B. hypocrita sapporoensis and B. terrestris under laboratory conditions. The mating and oviposition percentages resulting from the interspecific hybridization of a B. terrestris queen with a B. h. sapporoensis male were higher than those resulting from the intraspecific mating of B. h. sapporoensis. Furthermore, a competitive copulation experiment indicated that the mating of B. h. sapporoensis males with B. terrestris queens was 1.2-fold more frequent than the mating of these males with B. h. sapporoensis queens. The interspecific hybridization of a B. terrestris queen with a B. h. sapporoensis male produced either B. terrestris workers or the B. terrestris male phenotype, and the hybridization of a B. h. sapporoensis queen with a B. terrestris male produced B. h. sapporoensis males. Our results indicated that interspecific hybridization occurred between B. h. sapporoensis and B. terrestris. These results suggest that such hybridization will have a negative competitive impact and will cause genetic contamination of native bumblebees.

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“…Pollination is an ecosystem service in that wild pollinators, in particular wild bees, contribute significantly to the pollination of a large array of crops (Morandin and Winston, 2005;Greenleaf and Kremen, 2006;Winfree et al, 2007). Commercially managed bees are also available for pollination services and are used in large commercial fields, small gardens, or enclosures such as greenhouses and screen houses.…”

Section: Introductionmentioning

confidence: 99%

Agricultural Utilization and Year-Round Rearing Techniques of Bumblebees in Korea

Yoon¹,

Lee²,

Kim³

et al. 2011

International Journal of Industrial Entomology

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Commercially managed bees are available for pollination services and are used in large commercial fields, small gardens, or enclosures such as greenhouses and screen houses. This paper describes the current status and agricultural utilization of commercially managed bumblebees as well as bumblebee rearing techniques in Korea. We surveyed the use rate and number of bumblebees for the pollination of 10 major horticultural crops and fruit trees in Korea; in 2009, the use rates were approximately 7.9% and 2.8%, respectively. The use number of bumblebees as pollinators was more than 64,345 colonies, which included 51,400 colonies for 10 major horticultural crops and 12,945 colonies for 10 major fruit trees in 2009. The value of bumblebees as pollinators in 2009 in Korea was estimated at more than 5,100,000,000 won. We also describe feeding, rearing room conditions, colony initiation, mating and diapause breaks to establish year-round mass rearing techniques of the bumblebee Bombus ignitus.

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Effect of Human Disturbance on Bee Communities in a Forested Ecosystem

Cited by 358 publications

References 46 publications

Impact of human disturbance on bee pollinator communities in savanna and agricultural sites in Burkina Faso, West Africa

Impact of human disturbance on bee pollinator communities in savanna and agricultural sites in Burkina Faso, West Africa

Interspecific Hybridization of the Korean Native Bumblebee Bombus hypocrita sapporoensia and the European Bumblebee B. terrestris

Agricultural Utilization and Year-Round Rearing Techniques of Bumblebees in Korea

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