Figure captions
Figure 1: Behavioural reaction norms testing the relationship
between population density and A) social network strength and B) habitat
specialization for caribou (Rangifer tarandus ; n = 127) in
Newfoundland. Each line represents an individual behavioural response to
changes in population density and crossing of lines represents
individual differences in plasticity (i.e., an individual-environment
interaction).
Figure 2: phenotypic covariance between social strength and
habitat specialization in caribou (Rangifer tarandus , n = 127) in
Newfoundland.
Figure 3: phenotypic covariance between reproductive success
and habitat specialization at relatively high (orange points) and
relatively low (blue points) population density for caribou
(Rangifer tarandus , n = 127) in Newfoundland. At high density,
more specialized individuals also tended to have an overall higher
fitness value, whereas there was no effect of habitat specialization on
fitness at low density. Note, both variables are extracted from best
linear unbiased predictors (BLUPs) extracted from mixed models for
visualization.