2.6. Breeding bird temporal effects

2.6. Breeding bird temporal effects
For temporal comparisons between the two studies, we compared
bird metrics in the old harvests and unharvested stands
between two time periods: 1994–1996 vs. 2005–2006. The twoage
and clearcut stands were 8–15 years post-harvest in 1994
and 19–26 years post-harvest in 2005. Dependent variables
were species richness, Shannon diversity, and relative abundance
of each species detected in >30% of stands and each
habitat guild based on 5 min counts within 100-m radius
(McDermott, 2007). We used ANOVA with planned contrasts
to compare bird metrics between time periods for each
treatmen