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. 2016 Jul 8;11(7):e0158937. doi: 10.1371/journal.pone.0158937

Table 4. Economic value of pollinator contributions to yield in British Columbia and Michigan blueberry fields, and potential for economic gains.

Region BC MI
Yield estimate per field (kg/ha) 12203 ± 1161 14057 ± 1112
Yield due to pollination per field (kg/ha) 6259 ± 812 9345 ± 1115
Unrealized yield based on hand-supplementation experiment (kg/ha) 4538 ± 692 967 ± 358
Proportion of estimated max yield currently measured 0.74 ± 0.03 0.94 ± 0.02
Mean farm gate price for 2013 ($/kg) 3.30 2.84
Estimated crop value ($/ha) 40270 ± 3832 39920 ± 3157
Estimated value of pollination per field ($/ha) 20655 ± 2679 26541 ± 3167
Potential increase in crop value with maximum pollination ($/ha) 14977 ± 2286 2745 ± 1016
Proportion of potential increase in total value 0.38 ± 0.06 0.06 ± 0.02