a decreasing trendp = 0.168
californicus , while a decreasing trend was observed, this was not statistically significant (R 2 = 0.22, F(1,8) = 2.3, p = 0.168), and again, no significant effect of the year on the area was observed (β Year = −87.9 ± 58, p = 0.168) ( Figure 5 ).