Table 2.

Transformations from Hill numbers to total population niche width T and within-individual niche width W, in the data on gulls [17].

species	n	α	Γ	s.e.	T = ln γ	W = ln α − n SE2/(2α2)
Larus argentatus	236	4.61	5.56	0.16	1.72	1.39
Larus canus	75	4.05	5.36	0.26	1.68	1.24
Larus fuscus	49	2.66	3.74	0.19	1.32	0.85
Larus marinus	214	3.34	4.81	0.14	1.57	1.02