Quartiles of annual mortality rates for different study types: repeat inventory of mixed-aged existing trees vs. planting cohort. Planting cohort studies are further broken down into all studies, those reporting establishment mortality (≤ 5 years after planting) and those reporting post-establishment mortality (> 6 years post-planting). When a given study reported a range of years or a range of mortality values, we used the lower annual mortality value in the “lower” row and the higher annual mortality value in the “higher” row.
| Study type | Number of studies | Lower or higher annual mortality results used | Annual mortality (%) range and quartile | ||||
|---|---|---|---|---|---|---|---|
| Min. | 1st | Median | 3rd | Max. | |||
| Repeat inventory | 18 | lower | 0.00 | 1.57 | 2.28 | 3.02 | 30.00 |
| higher | 0.00 | 1.59 | 2.59 | 3.30 | 30.00 | ||
| Planting cohort | |||||||
| all | 21 | lower | 0.60 | 2.81 | 4.40 | 7.08 | 68.47 |
| higher | 0.60 | 3.76 | 6.48 | 9.33 | 68.47 | ||
| establishment | 16 | lower | 1.25 | 3.96 | 6.60 | 9.33 | 68.47 |
| higher | 2.74 | 5.02 | 7.00 | 10.43 | 68.47 | ||
| post-establishment | 8 | lower | 0.60 | 1.50 | 2.76 | 3.81 | 4.60 |
| higher | 0.60 | 1.53 | 3.76 | 4.73 | 11.22 | ||