Table 1: Annual migratory and colony decline patterns of the giant honeybee in semiarid environment of Northwest India.

YearNumber of colonies of giant honeybee in different months and years of observations
Oct Nov DecJanFebMarAprMay

1984-8541a 41 + 63a  = 104 104104104 + 43b  = 147147 + 56b  = 20320352
1987-8839a 39 + 71a  = 110 110110110 + 48b  = 158158 + 51b  = 20920946
1990-9136a 36 + 65a  = 101 101101101 + 42b  = 143143 + 51b  = 19419449
1993-9432a 32 + 59a  = 91 919191 + 38b  = 129129 + 47b  = 17617654
1996-9729a 29 + 53a  = 82 828282 + 51b  = 133133 + 41b  = 17417441
1999-200033a 33 + 42a  = 75 757575 + 46b  = 121121 + 42b  = 16316353
2002-0327a 27 + 41a  = 68 686868 + 38b  = 106106 + 43b  = 14914938
2005-0632a 32 + 31a  = 63 636363 + 33b  = 9696 + 37b  = 13313341
2008-0928a 28 + 30a  = 58 585858 + 34b  = 9292 + 29b  = 12112119
2011-1223a 23 + 21a  = 44 444444 + 21b  = 6565 + 17b  = 828222

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