Results 341 to 350 of about 1,917,789 (379)

Economic Valuation of Bee Pollination Services for Passion Fruit (Malpighiales: Passifloraceae) Cultivation on Smallholding Farms in São Paulo, Brazil, Using the Avoided Cost Method

Journal of Economic Entomology, 2019
This paper estimates the economic value of ecosystem services provided by Brazilian native bee, Xylocopa spp. Latreille (Hymenoptera: Apidae), pollination on a scale relevant to individual smallholder farmers that produce yellow passion fruit (Passiflora
Allan E Popak, Scott H. Markwith
semanticscholar   +1 more source

Wild Bee Visitation Rates Exceed Pollination Thresholds in Commercial Cucurbita Agroecosystems

Journal of Economic Entomology, 2019
Wild bees supply sufficient pollination in Cucurbita agroecosystems in certain settings; however, some growers continue to stock fields with managed pollinators due to uncertainties of temporal and spatial variation on pollination services supplied by ...
C. M. McGrady, R. Troyer, S. Fleischer
semanticscholar   +1 more source

Effects of Pollination by the Indo-Malaya Stingless Bee (Hymenoptera: Apidae) on the Quality of Greenhouse-Produced Rockmelon

Journal of Economic Entomology, 2018
Rockmelon (Cucumis melo Linnaeus (Cucurbitales: Cucurbitaceae)) is a novel commercialized fruit in Malaysia and has great potential to become an important horticultural crop for the international market.
W. Azmi, W. Sembok, N. Yusuf, M. Hatta, A. Salleh, M. Hamzah, S. N. Ramli   +6 more
semanticscholar   +1 more source

The plight of pollinating bees

Bee World, 2005
Pollinating animals (mostly bats, bees, beetles, birds, butterflies, flies, moths and wasps) provide almost incalculable economic and ecological benefits to humans, flowering plants and wildlife. Bees are the world's dominant pollinators, as the approximately 17 000 known bee species 7 collectively interact with most of the planet's quarter million ...
Stephen Buchmann, John S Ascher
openaire   +1 more source

Pollination by Bees

2011
This chapter considers pollination by bees, or melittophily. The bee flower syndrome involves flowers that have medium to long corolla tubes, often pendant, usually zygomorphic (i.e., bilaterally symmetrical rather than radial), commonly with a landing platform with complex texture or ridging so that a bee can hang on easily, and often arranged in ...
openaire   +1 more source

Crop Pollination by Stingless Bees

2018
The stingless bees are very diverse in the tropics and subtropics of the world, consisting of nearly 600 species. Their morphological, biological, and behavioral traits make many of them efficient crop pollinators. Currently, field research has documented stingless bees as field crop pollinators in 12 tropical countries worldwide.
Virginia Meléndez Ramírez, Ricardo Ayala, Hugo Delfín González   +2 more
openaire   +1 more source

BEES AS KEY POLLINATORS

Bees are ecologically and agriculturally important. However, their populations are in decline due to a combination of factors, including parasitic infestations, pesticide exposure, and habitat loss. This dissertation seeks to improve wild bee conservation through an extension publication, which alerts the public to local scale factors driving ...
openaire   +1 more source

Bee-pollination inHibbertia fasciculata (Dilleniaceae)

Plant Systematics and Evolution, 1986
In direct contrast to mostHibbertia spp., the flowers ofH. fasciculataR. Br. ex D. C. bear only a single whorl of stamens and these stamens are arranged separately (not in typical “bundles”). The short filaments are appressed to the three carpels so that the inflated, porose and introrsive anthers form a centralized cluster obscuring the three ovaries.
openaire   +1 more source

Wild Bees and Crop Pollination

2011
Bees represent a great diversity. According to Michener (The bees of the world. The John Hopkins University Press, Baltimore/London, 913 pp, 2000) more than 16,325 species of bees have been recognized, belonging to 425 genera, reorganized under 7 families. Though much has been known still much more needs to be investigated.
openaire   +1 more source

Non Bee Pollinators-Plant Interaction

2011
Global inventories of biodiversity indicate that more than 100,000 different animal species – and perhaps as many as 200,000 – play roles in pollinating the 250,000 kinds of wild flowering plants on this planet. Only 15% of these crops are serviced by domestic honey bees, while at least 80% are pollinated by wild bees and other wildlife. In addition to
openaire   +1 more source