Climeto-Cylic Immigrations with Declining Population of Wild Honeybee, Apis Dorsata F. In Chitwan Valley, Nepal

Pokhrel, Saroj

doi:10.3126/aej.v11i0.3652

Cited by 3 publications

(3 citation statements)

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“…For the utilization of this honeybee as a pollinator and honey gatherer; knowledge about its seasonal migration schedules is important. Some earlier researchers studied the latter ecological phenomenon of the giant honeybee in the tropical climates of South and Southeast Asia [2][3][4][5][6][7]. The reports reveal that seasonal migration in this honeybee varied from place to place depending on the local climatic and floral conditions.…”

Section: Introductionmentioning

confidence: 99%

“…After environmental conditions deteriorated, all the bees with their queens absconded and migrated to alternate seasonal nesting sites. In the Chitwan district of Nepal too, the giant honeybee showed seasonal migration [5,6]; the mean number of colonies declined steadily from May to August. There was no colony in September and October, got the highest peak in January, and started again declining from March onward [6].…”

Section: Introductionmentioning

confidence: 99%

“…In the Chitwan district of Nepal too, the giant honeybee showed seasonal migration [5,6]; the mean number of colonies declined steadily from May to August. There was no colony in September and October, got the highest peak in January, and started again declining from March onward [6]. In a rain forest habitat in Northeastern Thailand, migration of the giant honeybee allowed colonies to track seasonally varying floral resources in different regions [7].…”

Section: Introductionmentioning

confidence: 99%

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Phenology of Migration and Decline in Colony Numbers and Crop Hosts of Giant Honeybee (Apis dorsataF.) in Semiarid Environment of Northwest India

Sihag

2014

Journal of Insects

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The colonies of the giant honeybee (Apis dorsata) immigrate in the semiarid environment of Northwest India in October-November with the onset of flowering on pigeon pea (Cajanus cajan)/toria (Brassica campestrisvar. toria), stay here during the rich pollen and nectar flow period from December to mid-May, and emigrate in late May/early June when floral dearth is witnessed. This honeybee was free from any conspicuous viral, bacterial, and fungal diseases and also did not have any serious predators and enemies. However, about 20 percent of the old colonies were infested withTropilaelaps clareaeand 100 percent of the old colonies withGalleria mellonella; none of the swarm colonies had these pests. While the migration schedule of this honeybee remained similar year after year, the number of colonies immigrating in this region declined markedly over the years; the number in 2012 was even less than half of that recorded in 1984. During its stay in this region, this honeybee acted as an important pollinator of more than 30 crop plants of this region. The causes of seasonal migration and decline in the number of colonies of this honeybee and its importance in crop pollination have been discussed.

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