Table 1.
Total colony losses of honey bees predicted per country and year with a 95% Confidence Interval (based on GLMs).
| Year | % colonies | N | No. colonies | % Summer loss (95% CI) | N | No. colonies | % Winter loss (95% CI) | N | No. colonies | % Annual loss (95% CI) |
|---|---|---|---|---|---|---|---|---|---|---|
| Argentina | ||||||||||
| 2016–2017 | 1.76 | 135 | 50,805 | 22.1 (18.6–26) | 121 | 46,778 | 20.9 (17.2–25.3) | 111 | 44,578 | 34.8 (30.3–39.7) |
| 2017–2018 | 1.58 | 107 | 41,731 | 13.8 (10.9–17.3) | 110 | 46,610 | 11.9 (9.2–15.4) | 91 | 40,499 | 21.4 (17.5–25.9) |
| Bolivia | ||||||||||
| 2016–2017 | – | 76 | 2266 | 27.1 (14.5–44.8) | 67 | 2246 | 20.5 (10–37.5) | 61 | 1901 | 36.3 (21.4–54.4) |
| Brazil | ||||||||||
| 2016–2017 | 0.89 | 114 | 8639 | 27 (20.2–35.2) | 112 | 5085 | 23.2 (14.7–34.7) | 95 | 4719 | 44.7 (34–56) |
| 2017–2018 | 2.63 | 88 | 25,345 | 13 (10–16.7) | 66 | 20,765 | 31.9 (26.2–38.2) | 60 | 19,384 | 27 (21.8–32.8) |
| Chile | ||||||||||
| 2016–2017 | 6.42 | 120 | 27,877 | 28.7 (24.5–33.4) | 90 | 17,487 | 21 (15.9–27.2) | 74 | 16,511 | 42.1 (36–48.5) |
| 2017–2018 | 6.08 | 97 | 21,595 | 15.3 (11.9–19.6) | 97 | 25,101 | 26.1 (21.5–31.4) | 85 | 19,507 | 25.6 (20.9–30.9) |
| Colombia | ||||||||||
| 2016–2017 | 7.5 | 41 | 8005 | 29.6 (22.1–38.4) | 38 | 8335 | 21.9 (14.8–31.3) | 37 | 7910 | 42.8 (34.3–51.8) |
| 2017–2018 | 30.46 | 70 | 30,827 | 40.2 (33.9–46.8) | 63 | 31,882 | 28.5 (22.8–35.1) | 52 | 28,384 | 52.5 (45.8–59.1) |
| Cuba | ||||||||||
| 2017–2018 | 3.77 | 14 | 6224 | 22.6 (15.7–31.3) | 13 | 5142 | 7 (2.9–15.8) | 12 | 4140 | 18.8 (11.2–29.8) |
| Mexico | ||||||||||
| 2016–2017 | 1.1 | 86 | 16,963 | 3.4 (1.8–6.3) | 91 | 20,110 | 20.9 (16.5–26) | 83 | 16,644 | 17.3 (13.2–22.4) |
| 2017–2018 | 1.42 | 226 | 29,590 | 6.1 (4.3–8.6) | 227 | 30,623 | 11.6 (8.9–15.1) | 220 | 29,308 | 15.2 (12–18.9) |
| Panama | ||||||||||
| 2017–2018 | – | 25 | 1768 | 8.2 (2.3–25.4) | 28 | 1969 | 12 (4.5–28.5) | 25 | 1768 | 17.1 (7.2–35.2) |
| Peru | ||||||||||
| 2016–2017 | – | 66 | 2920 | 12.3 (5.6–24.8) | 33 | 8374 | 23.8 (16.5–33.1) | 30 | 755 | 12.7 (2.6–44.4) |
| 2017–2018 | – | 94 | 16,722 | 31.4 (25.6–37.8) | 105 | 19,148 | 23.2 (18.1–29.2) | 70 | 13,446 | 41.5 (34.6–48.7) |
| Puerto Rico | ||||||||||
| 2017–2018 | 31.65 | 10 | 575 | 7.8 (0.6–53.5) | 10 | 810 | 15.5 (3.9–45.1) | 9 | 460 | 27.9 (7.2–65.9) |
| Uruguay | ||||||||||
| 2016–2017 | 7.52 | 109 | 43,888 | 14.1 (11.6–17.1) | 43 | 14,781 | 29.2 (23.1–36.2) | 42 | 14,629 | 38.2 (31.8–45) |
| 2017–2018 | 6.12 | 88 | 29,108 | 16.3 (13.1–20) | 92 | 30,398 | 22 (18.1–26.5) | 79 | 25,487 | 32 (27.4–37.1) |
N is the number of respondents. No. colonies is the sum of colonies per period (i.e. summer, winter, annual). % Colonies is the proportion of the colonies included in the study regarding the total number of managed colonies registered in the country based on the FAO dataset (FAOSTAT 2023).