Table 1.

Comparative results

Cooperation measure	Climate PC axis	posterior mean	Bayesian	pMCMC	PGLS
			95% CI Bounds		t	P	r2
All aggregate data (N = 40 species)
Categorical	Env. Harshness	−8.68	−56.92 – 38.17	0.72	−0.28	0.78	0.37
	Temp. Stability	175.66	36.69 – 318.94	0.0013	−5.00	<0.0001
Mean	Env. Harshness	−0.112	−0.30 – 0.065	0.21	−1.19	0.24	0.02
	Temp. Stability	−0.191	−0.52 – 0.15	0.26	−1.11	0.28
Cooperative species only aggregate data (N = 26 species)
Mean	Env. Harshness	−0.186	−0.435 – 0.065	0.12	−1.89	0.07	0.09
	Temp. Stability	0.090	−0.51 – 0.72	0.77	0.41	0.69
All locality data (N = 129 localities, 28 species)
Categorical	Env. Harshness	−7.76	−62.85 – 49.87	0.81	1.37	0.17	0.05
	Temp. Stability	58.06	−2.10 – 136.13	0.041	−2.68	0.008
Mean	Env. Harshness	−0.177	−0.293 – −0.062	0.003	−2.97	0.004	0.05
	Temp. Stability	−0.032	−0.191 – 0.130	0.69	−0.36	0.72
Cooperative species only locality data (N = 86 localities, 19 species)
Mean	Env. Harshness	−0.262	−0.383 – −0.124	0.001	−5.91	<0.001	0.28
	Temp. Stability	0.046	−0.172 – 0.256	0.66	0.81	0.41