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Ecological Processes

Table 3 Coefficients of the Negative Binomial Hurdle model (hurdle and count parts) for each independent variable across the three study regions

From: Modeling fire ignition probability and frequency using Hurdle models: a cross-regional study in Southern Europe

 

Hurdle part

Count part

Catalonia

Sardinia

Apulia

Catalonia

Sardinia

Apulia

DEM

− 0.90***

0.14***

− 0.23***

− 1.00***

0.19***

− 0.21***

Slope

− 0.12**

− 0.05

0.29***

− 0.37**

0.18***

− 0.01

Dry days

0.08

0.25***

0.08**

− 0.20*

0.17***

− 0.01

Max_temp

− 0.37***

0.11***

− 0.66***

− 0.07

0.20***

− 0.18***

Pop_density

− 0.05*

0.04

− 0.02

0.15***

0.02

− 0.09

Urb. area_dist

− 0.17***

− 0.54***

− 0.48***

− 0.36***

− 0.41***

− 0.05

Road_dist

− 0.52***

− 0.77***

− 0.58***

− 0.30***

− 0.86***

− 0.82***

Agric

12.79***

5.81*

0.14*

6.02

0.86

− 0.08

Forest

13.69***

3.83*

0.44***

6.59

0.34

0.23***

Grassland

5.04***

2.10*

0.50***

2.70

0.23

0.16**

Other lands

3.85***

1.07

0.12***

2.31

− 0.12

− 0.03

Shrubland

7.80***

4.34*

0.49***

3.80

0.30

0.15***

Urban

5.74***

1.80*

− 0.004

2.83

0.32

− 0.10

Waterland

1.71***

0.95*

0.18***

0.91

0.10

− 0.10

Wetland

1.34***

0.77*

0.13

0.62

0.10

0.15

  1. DEM Digital Elevation Model, Max_temp maximum temperature, Pop_density population density, Urb. Area_dist distance from urban areas, Road_dist distance from roads, Agric agriculture
  2. ***p < 0.001, **p < 0.005, *p < 0.05
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