. 2010 Jun 16;106(4):557–566. doi: 10.1038/hdy.2010.81

Table 6. Parameter estimates and the distances where 50% (O₅₀) and 90% (O₉₀) reduction in frequency of gene flow occurred with their respective standard errors and confidence intervals from the regression analysis at various sites in 2006 and 2007.

Experiment	Parametera	Estimateb	Standard error	Dfc	95% Confidence interval
					Lower	Upper
Edmonton, 2006	a	0.009570	0.03162	60	−0.05368	0.07282
	b	0.3024	1.1767	60	−2.0514	2.6563
	O₅₀	2.29191	8.91769	60	−15.5461	20.1299
	O₉₀	15.2271	59.2478	60	−103.286	133.74
Ellerslie, 2006	a	0.007363	0.02665	63	−0.04589	0.06062
	b	0.2622	1.1557	63	−2.0473	2.5717
	O₅₀	2.64364	11.6528	63	−20.6427	25.9300
	O₉₀	17.5640	77.4198	63	−137.147	172.275
Edmonton, 2007	a	0.01566	0.05022	64	−0.08466	0.1160
	b	0.6588	2.1599	64	−3.6561	4.9737
	O₅₀	1.05209	3.44916	64	−5.83840	7.94258
	O₉₀	6.98994	22.9157	64	−38.7895	52.7694
Ellerslie, 2007	a	0.01518	0.05221	64	−0.08911	0.1195
	b	0.8106	2.8400	64	−4.8630	6.4842
	O₅₀	0.85513	2.99613	64	−5.13032	6.84058
	O₉₀	5.68136	19.9058	64	−34.0851	45.4478

Parameters a and b were estimated using equation (2). The distances (O₅₀ and O₉₀) where gene flow was reduced by 50 and 90% were estimated using equations (3) and (4), respectively.

Estimates of the parameters for intercept (a), slope (b) and the estimates of the distances where gene flow was reduced by 50 and 90%.

Degree of freedom.

Table 6. Parameter estimates and the distances where 50% (O50) and 90% (O90) reduction in frequency of gene flow occurred with their respective standard errors and confidence intervals from the regression analysis at various sites in 2006 and 2007.

Table 6. Parameter estimates and the distances where 50% (O₅₀) and 90% (O₉₀) reduction in frequency of gene flow occurred with their respective standard errors and confidence intervals from the regression analysis at various sites in 2006 and 2007.