Abstract
Recent debate has focused on whether variation in personality primarily
reflects variation in resource allocation or resource acquisition of
individuals. These two mechanisms differ in their expected patterns
between personality and survival. If personality mainly reflects
variation in resource allocation, then bold (i.e. risk-taking)
individuals are expected to live shorter, whereas the opposite pattern
is expected with resource acquisition. Here we studied the relationship
between neonate personality and early-life survival in 269 juveniles of
a population of fallow deer (Dama dama). We found that bolder
individuals were more likely to survive, and therefore, paid no apparent
survival cost. Interestingly, the physiological but not the behavioural
dimension of neonate boldness was directly linked to survival,
suggesting that these individuals may be of higher state than their
shyer counterparts. As the first study linking neonate personality to
survival in a free-ranging mammal, we provide novel insights into
drivers behind early-life individual variation.