Table 1.

Parameter estimates from ERGMs in each year, with standard errors in brackets. CMP stands for Conway-Maxwell-Poisson distribution; see main text for description of terms

Parameter	2006	2007	2008	2011	2012	2013
CMP	0.923 (0.013)	0.783 (0.010)	0.914 (0.058)	0.743 (0.012)	0.958 (0.012)	0.600 (0.082)
Non-zero	−7.109 (0.436)	−6.389 (0.192)	−4.287 (0.282)	−6.622 (0.231)	−5.805 (0.476)	−6.377 (0.176)
Transitive ties	1.954 (0.208)	1.373 (0.090)	0.654 (0.136)	1.571 (0.113)	1.508 (0.230)	1.323 (0.077)
Sex	−0.096 (0.024)	0.059 (0.017)	−0.092 (0.109)	−0.019 (0.015)	−0.107 (0.028)	−0.073 (0.042)
Node-match by sex	−0.411 (0.030)	−0.399 (0.036)	−0.685 (0.162)	−0.339 (0.023)	−0.430 (0.035)	−0.020 (0.081)
Emergence location	0.390 (0.036)	0.391 (0.066)	0.269 (0.113)	0.594 (0.0425)	0.143 (0.055)	0.679 (0.199)