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

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

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

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

ISSN: 2051-3933