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Table 1 Results of multiple regression on distance matrices and additional parameters derived from commonality analysis

From: High dispersal capacity of Culicoides obsoletus (Diptera: Ceratopogonidae), vector of bluetongue and Schmallenberg viruses, revealed by landscape genetic analyses

 

k a

r

β

U

C

FCA

 Cattle density [C]b

1000

0.1733

0.1551

0.0221

0.0079

 Grassland [R]c

1000

0.1080

0.0637

0.0037

0.0079

a R

 Elevation [R]c

100

0.0254

− 0.9945

0.00044

0.0002

 Elevation [R]c

1000

0.0291

0.9860

0.00048

0.0004

 Grassland [R]c

100

0.0448

0.2279

0.00005

0.0020

 Grassland [R]c

1000

0.0539

− 0.1483

0.00002

0.0029

 Urban areas [R]c

100

0.0725

− 0.1279

0.00014

0.0051

 Urban areas [R]c

1000

0.0879

0.2156

0.00049

0.0072

  1. Pearson’s correlation coefficient (r), significant regression coefficient (β), as well as unique (U) and common (C) contributions of environmental distances to the variance in the dependent variable are shown; FCA factorial correspondence analysis, aR Rousset’s distance
  2. aRe-scaling parameter used to transform the initial raster file
  3. bThe considered environmental raster was treated as a conductance [C] factor
  4. cThe considered environmental raster was treated as a resistance [R] factor