showed a trendP<0.0001
Pelicans showed a trend (r 2 = 0.41, P<0.0001) toward earlier arrival between 1965 and 2008, with arrival dates advancing approximately 16 days ( Fig. 2 ; 21 April in 1965 vs. 5 April in 2008).
Pelicans showed a trend (r 2 = 0.41, P<0.0001) toward earlier arrival between 1965 and 2008, with arrival dates advancing approximately 16 days ( Fig. 2 ; 21 April in 1965 vs. 5 April in 2008).