Table 5.

B. bufo and B. calamita.

	Estimate	Std. Error	z value	P
(Intercept)	−0.2758076	0.4732180	−0.583	0.56001
d500	−0.0034426	0.0005547	−6.207	5.41e-10***
Dhi	0.0074735	0.0014794	5.052	4.38e-07***
Aet	0.0036445	0.0003296	11.057	<2e-16***
Prec	−0.0009242	0.0001282	−7.211	5.56e-13***
Alti	0.0002249	0.0001106	2.034	0.04197*
Rmp	2.2063901	0.3935660	5.606	2.07e-08***
Pet	−0.0018473	0.0004894	−3.775	0.00016***
d100	−0.0032504	0.0010754	−3.022	0.00251**
Perm	−0.0969069	0.0381119	−2.543	0.01100*