. British journal of entomology and natural history. Natural history; Entomology. 174 BR. J. ENT. NAT. HIST., 3: 1990 Table 1. The number and percentages of each sex/caste of bumblebees trapped at Bernwood Forest between 1 April and 30 September from 1980 until 1982. Species B. pratorum B. terrestris B. lucorum B. hortorum B. pascuorum Queens 34 38 109 32 112 % Workers 38 49 418 91 367 % Males 70 31 127 113 70 % Total 142 118 654 236 549 so that for these species the weekly data have been combined into biweekly readings


. British journal of entomology and natural history. Natural history; Entomology. 174 BR. J. ENT. NAT. HIST., 3: 1990 Table 1. The number and percentages of each sex/caste of bumblebees trapped at Bernwood Forest between 1 April and 30 September from 1980 until 1982. Species B. pratorum B. terrestris B. lucorum B. hortorum B. pascuorum Queens 34 38 109 32 112 % Workers 38 49 418 91 367 % Males 70 31 127 113 70 % Total 142 118 654 236 549 so that for these species the weekly data have been combined into biweekly readings so that the patterns of seasonal activity are more clearly discernable. The queens were already active when the trapping started during April and were recorded throughout, or for most of, the trapping period. During June numbers of queens 75 20 ro 5. 0 •. PRATORUM 50 21 A I M I J I J I A I S I LUCORUM M I J I J 1 A 1 5 I. HORTORUM. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Entomological and Natural History Society. [London] : British Entomological and Natural History Society


Size: 2172px × 1150px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, booksubjectentomology, booksubjectnaturalhistor