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Table 2 Sampling details of the ten studied H. axyridis populations

From: Cannibalism in invasive, native and biocontrol populations of the harlequin ladybird

Biogeographic status

Sampling site locality

Sample code

Coordinates

Distance from outbreak core (Km)

Date of first observation

Invasive

Brussels (Belgium)

X1

50.839°N

0

2001

4.368°E

 

Fondettes (France)

X2

47.402°N

469

2006

0.637°E

 

Chizé (France)

X3

46.148°N

629

2009

0.424°W

 
 

Walhain (Belgium)

Y1

50.612°N

0

2001

4.668°E

 
 

Quincieux (France)

Y2

45.909°N

522

2007

4.758°E

 
 

Prade-le-lez (France)

Y3

43.698°N

770

2008

3.863°E

 

Native

Krasnoyarsk (Russia)

Z1

56.001°N

N/A

N/A

92.885°E

 
 

Fuchu (Japan)

Z2

34.57°N

N/A

N/A

133.24°E

 

Biocontrol

Valbonne (France)

W1

N/A

N/A

N/A

 

Westerlo (Belgium)

W2

N/A

N/A

N/A

  1. Note: Two populations were sampled in the native area (Z1 and Z2), six in the European invaded area (X1 to X3 and Y1 to Y3) and two populations originated from commercial biocontrol stocks (W1 and W2). For the European invasive populations, samples were collected along two transects starting from the outbreak core and ending near the invasion front (see Figure 3). N/A – not assessed.