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

Table 1

Annual migratory and colony decline patterns of the giant honeybee in semiarid environment of Northwest India.

Year	Number of colonies of giant honeybee in different months and years of observations
		Oct	Nov	Dec	Jan	Feb	Mar	Apr	May
1984-85		41a	41 + 63a  = 104	104	104	104 + 43b  = 147	147 + 56b  = 203	203	52
1987-88		39a	39 + 71a  = 110	110	110	110 + 48b  = 158	158 + 51b  = 209	209	46
1990-91		36a	36 + 65a  = 101	101	101	101 + 42b  = 143	143 + 51b  = 194	194	49
1993-94		32a	32 + 59a  = 91	91	91	91 + 38b  = 129	129 + 47b  = 176	176	54
1996-97		29a	29 + 53a  = 82	82	82	82 + 51b  = 133	133 + 41b  = 174	174	41
1999-2000		33a	33 + 42a  = 75	75	75	75 + 46b  = 121	121 + 42b  = 163	163	53
2002-03		27a	27 + 41a  = 68	68	68	68 + 38b  = 106	106 + 43b  = 149	149	38
2005-06		32a	32 + 31a  = 63	63	63	63 + 33b  = 96	96 + 37b  = 133	133	41
2008-09		28a	28 + 30a  = 58	58	58	58 + 34b  = 92	92 + 29b  = 121	121	19
2011-12		23a	23 + 21a  = 44	44	44	44 + 21b  = 65	65 + 17b  = 82	82	22

a = immigrated colonies; b = swarm colonies, italic font  =  immigration period, bold font =  swarming period, and = dearth period.