Table 1.

Results of logistic regressions examining selectivity among marine teleost genera during the end-Cretaceous extinction, conducted on raw (phylogenetically uncorrected) data

Excluded sets	n	Mode	Prandom	AWS	AWMA	AWS+MA	PS,MA (best fit)	Odds ratioS,MA (best fit)
None	92 (33)	G	<0.01	0.60	0.050	0.35	0.0071, –	−0.2904, –
		P	<0.05	0.53	0.14	0.33	0.031, –	−0.2223, –
Nardò	74 (15)	G	<0.001	0.020	2.2·10−5	0.98*	0.00027, 0.015	−0.8382, 8.757
		P	<0.001	0.035	7.1·10−5	0.96*	0.00036, 0.019	−0.7859, 7.176
Recent	78 (33)	G	<0.05	0.28	0.33	0.38	0.14, 0.12	−0.1740, 2.230
		P	<0.05	0.40	0.25	0.35	0.034, –	−0.2174, –
Nardò, Recent	60 (15)	G	<0.001	0.012	0.0022	0.99*	0.0025, 0.011	−0.6956, 9.550
		P	<0.001	0.015	0.0018	0.98*	0.0019, 0.020	−0.6588, 9.514

For sample sizes (n), the figure in parentheses indicates the number of the total representing victims. Mode refers to model of evolutionary change; gradual (G) or punctuated (P). Significance values given in P_random indicate the probability that the distribution of victims and survivors is random. Columns marked AW give Akaike weights for the regression models indicated in subscript (abbreviations for models: S, body size; MA, jaw closing MA). These values indicate relative support for their corresponding models. AW of the best fitting model for a given dataset partition appears in boldface, and is marked with an asterisk when its model is a substantially better fit than the alternatives. Only values for the factors of the best-fitting model are given for P_S,MA and the odds ratio. The first value in these 2 columns applies to S and the second (where present) to MA.