Individual study: Impact of supplementary feeding on breeding behaviour of Florida scrub-jays Aphelocoma coerulescens at Archbold Biological Station, Florida, USA
Schoech S.J (1996) The effect of supplemental food on body condition and the timing of reproduction in a cooperative breeder, the Florida scrub-jay. The Condor, 98, 234-244
As part of an investigation into the role of food availability in the decision (whether and) when to breed, this study investigated the impact of supplementary food provision on the reproductive behaviour of the cooperatively breeding Florida scrub-jay Aphelocoma coerulescens at Archbold Biological Station (27°10'N, 81°21'W), Florida, south-eastern USA.
Nests of supplemented and control groups were checked every two to three days to determine the clutch initiation date and clutch size. Following their capture in Potter traps and mist-nets, adult scrub-jays were weighed, and their level of body lipids (a measure of body condition) was estimated based on their lean body mass (estimated using total body electrical conductivity with a Dickeyjohn DjME100 Ground Meat Tester).