| temporal predictability in food availability: effects upon the reproductive axis in scrub-jays. | florida scrub-jays (aphelocoma coerulescens) in a suburban environment with year-round access to multiple sources of abundant, human-source foods consistently breed earlier each year and have lower baseline levels of circulating corticosterone (cort) than jays in a nearby wildland setting. these findings suggest that food supplies influence cort levels, which in turn may partially determine the timing of reproduction. however, wildland birds with access to high-quality supplemental foods did not ... | 2009 | 18756528 |