Table 1 Colony density estimates for bumble bee (Bombus spp.) subpopulations throughout the greater Saint Louis region in 2018. Ni is the total number of sampled females, Ng is the number of successfully genotyped females, Nnr is the number of colonies detected from genotyping, Nns is the number of colonies standardized for genotyping success, and Nc is colony density. Colony numbers were not calculated for populations with 15 or fewer successfully genotyped females. CC Calvary Cemetery, CW Castlewood State Park, ED EarthDance Farms, SNR Shaw Nature Reserve.
From: Bumble bees exhibit body size clines across an urban gradient despite low genetic differentiation
Species and colony estimates | Sites | |||
---|---|---|---|---|
CC | CW | ED | SNR | |
B. auricomus | ||||
Ni | 56 | – | 39 | 44 |
Ng | 54 | – | 38 | 38 |
Nnr | 54 | – | 36 | 36 |
Nns | 56.0 | – | 36.9 | 41.7 |
Nc | 84.0 | – | 55.4 | 62.5 |
B. bimaculatus | ||||
Ni | 1 | 72 | 49 | 38 |
Ng | 1 | 70 | 49 | 34 |
Nnr | – | 64 | 46 | 33 |
Nns | – | 65.8 | 46.0 | 36.9 |
Nc | – | 98.7 | 69.0 | 55.3 |
B. griseocollis | ||||
Ni | 45 | 12 | 61 | 34 |
Ng | 45 | 12 | 56 | 32 |
Nnr | 45 | – | 54 | 32 |
Nns | 45.0 | – | 58.8 | 34.0 |
Nc | 67.5 | – | 88.2 | 51.0 |
B. impatiens | ||||
Ni | 53 | 42 | 71 | 41 |
Ng | 48 | 42 | 64 | 39 |
Nnr | 45 | 41 | 58 | 35 |
Nns | 49.7 | 41.0 | 64.3 | 36.8 |
Nc | 74.5 | 61.5 | 96.5 | 55.2 |
B. pensylvanicus | ||||
Ni | 39 | 5 | 19 | 53 |
Ng | 38 | 5 | 16 | 52 |
Nnr | 28 | – | 11 | 44 |
Nns | 28.7 | – | 13.1 | 44.8 |
Nc | 43.1 | – | 19.6 | 67.3 |