Table 1 Results of linear and multiple linear regression showing the relationship between two avian life history predictors (mean clutch initiation date and clutch size) and subsequent Atlantic basin Accumulated Cyclone Energy.

From: A Nearctic-Neotropical Migratory Songbird’s Nesting Phenology and Clutch Size are Predictors of Accumulated Cyclone Energy

Model

β

CI

R 2

F

DF

P-value

Clutch initiation

−8.2

−11.7, −0.03

0.28

6.2

1, 16

0.02

Mean clutch size

144.5

28.4, 173.4

0.79

59.3

1, 16

<0.0001

Clutch initiation × Mean clutch size

289938

16452, 563424

0.84

39.2

2, 15

<0.0001

  Clutch initiation

−7.7

−10.7, −0.02

    

  Mean clutch size

132

33.1, 180.2

    
  1. For each model, the slope parameter (β), confidence interval (CI), coefficient of determination (R2), F-statistic (F), degrees of freedom (DF), and probability values are given. Confidence intervals (95%) are the result of bootstrapping using 1000 replicates. P-values represent the probability of obtaining the F-ratio given the distribution of the F-statistic and the degrees of freedom if the null hypothesis of no relationship is true. Individual terms for the multiple regression model are italicized. Data are from a Delaware, USA, Veery population.
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