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Table 3 Inter-annual comparison of mean (± SD) reproductive parameters of short-tailed shearwaters

From: Breeding short-tailed shearwaters buffer local environmental variability in south-eastern Australia by foraging in Antarctic waters

Colony Study year 2012 2013 2014 F df P-value
Gabo Island Nests 50 70 81    
Hatching success (%) 80.0* 52.9** 70.4* 9.82 2 <0.001
Fledging success (%) 55.0* 13.5** 31.6*** 22.46 2 <0.001
Breeding success (%) 44.0* 7.1** 22.2*** 22.45 2 <0.001
Griffith Island Nests 106 109 97    
Hatching success (%) 65.1* 39.4** 57.7* 15.08 2 <0.001
Fledging success (%) 50.7* 37.2** 41.1*,** 9.98 2 0.006
Breeding success (%) 33.0* 14.7** 23.7*,** 9.99 2 0.007
  1. Parameters were recorded over three consecutive breeding seasons. Nests is the total number of nests monitored each year. The number of adults measured to calculate body condition index is indicated in brackets. Significant results are indicated in bold and homogeneous subsets (P > 0.05) are indicated by asterisks