Appendix 2.
Figure A2.1. Relationships between Red Grouse demographic variables (on a logarithmic scale) and heather cover assessed during ground surveys (a-e) and aerial surveys (f-j). Note that the relationships between survival estimates and heather cover depicted here are not corrected for density dependence as in the respective models.
1 10 100
0 20 40 60 80 100
pre-breeding density
heather cover (%)
2007 2012 2015
1 10 100 1000
0 20 40 60 80 100
post-breeding density
heather cover (%)
1 10 100
0 20 40 60 80 100
pre-breeding density
heather cover (%)
2009 2015
1 10 100 1000
0 20 40 60 80 100
post-breeding density
heather cover (%)
0.1 1.0 10.0
0 20 40 60 80 100
productivity
heather cover (%)
0.1 1.0 10.0
0 20 40 60 80 100
productivity
heather cover (%)
0.0 0.1 1.0 10.0
0 20 40 60 80 100
winter survival
heather cover (%)
0.0 0.1 1.0 10.0
0 20 40 60 80 100
winter survival
heather cover (%) 0.1
1.0 10.0
0 20 40 60 80 100
summer survival
heather cover (%)
0.1 1.0 10.0
0 20 40 60 80 100
summer survival
heather cover (%) a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
