Table 1 Summary of top GAM models showing the relationship between coastal debris and the COVID-19 Pandemic from May 2020 to May 2021, where rows represent candidate explanatory variables and columns represent response variables.

From: The impact of the anthropause caused by the COVID-19 pandemic on beach debris accumulation in Maui, Hawaiʻi

 

Site 1 Kam'aole Beach

Site 2 Ulua Beach

Intercept

3.57***

3.48***

Julian day

s(5.00)***

s(4.63)***

Lockdown level 1

–

–

Lockdown level 2

0.33

–

Lockdown level 3

− 3.10**

–

Lockdown level 4

− 1.48

–

Lockdown level 5

− 3.84**

–

Relative Exposure Index (REI)

–

s(6.46)

Relative Tidal Range (RTR)

–

s(7.77)

Deviance explained (%)

72.4

79.1

Number of observations

51

48

  1. The parametric coefficient estimates for factors and the degree of smoothing, s(EDF), for smooth terms included in the final model are presented in the cells.
  2. Significance of each model term is indicated by an * where: *P = 0.01–0.05; **P = 0.001–0.01; ***P = 0–0.001; P = 0.05–0.1
  3. Cells with a “–” represent terms dropped from the final model.
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