| Sample sizea | Datesb | Nest fatea | Apparent survivalc |
---|
Year
|
Females
|
Nests
|
First
|
Last
|
Hatched
|
Depredated
|
Other
|
Hen-killed
| Â |
2008 | 17 | 18 | 26 April | 11 June | 5 | 13 | 0 | 0 | 0.28 |
2009 | 23 | 26 | 22 April | 14 June | 8 | 15 | 1 | 2 | 0.31 |
2010 | 27 | 39 | 21 April | 12 July | 11 | 22 | 0 | 6 | 0.28 |
Total | 67 | 83 | - | - | 24 | 50 | 1 | 8 | = 0.29 |
- aAnnual sample sizes of female greater sage-grouse and nests, and corresponding nest fates, on the 5,625-km2 study area in the Wind River Basin in central Wyoming, USA. bDates listed are for the initiation of the first nest (i.e., First) and the hatching or depredation of the last nest (i.e., Last). Nests of female greater sage-grouse that died during incubation were considered failed nests. cApparent annual nest survival (i.e., successful hatch) was calculated as 'Hatched'/'Nests.'