The number of hedgehogs in rural areas has fallen by half over the past two decades

Population index, 2002 = value of 100

Trend

Annual estimates

120

100

80

60

40

20

2001

2004

2007

2010

2013

2016

Trend

Annual estimates

120

100

80

60

40

20

2001

2004

2007

2010

2013

2016