Table 3.
Stress profile | Colony stressors | Increased colony losses reported | Identified populations | Commercial-scale beekeepers | |||
---|---|---|---|---|---|---|---|
Varroa destructor | DWV complex | Other pathogens | Abiotic stressors | ||||
1 | No | No | Most | Most | No | Australia | Yes |
2 | No | No | Few | Few | No | Uganda, Norfolk Island | No |
3 | No | Yes | Few | Few | No | Newfoundland Island | No |
4 | Yes | Yes | Some/Most | Some/Most | No | Europe (some countries). New Zealand, South America, Africa, Asia | Yes (most countries) |
5 | Yes | Yes | Most | Most | Yes | North America, Europe (some countries) | Yes |
Profiles are characterised by the presence or absence of known or hypothesized causes of increased honeybee colony losses. In relation to Fig. 4, populations with profiles 1–3 are on the lower end of the stress spectrum, populations with profile 4 range across the middle of the stress spectrum and populations with profile 5 are on the high end of the stress spectrum.