| independent effects of food and predator-mediated processes on annual fecundity in a songbird. | we investigated the relative importance and interaction of ecological processes affecting annual fecundity in birds by simultaneously manipulating food availability and nest predation risk in a small songbird, the wrentit (chamaea fasciata). from 2000 to 2002 we provided supplemental food to individual wrentit territories, and during 2002 we altered nest predation risk by providing supplemental food to their principal predators, western scrub-jays (aphelocoma californica). these experiments were ... | 2006 | 16634307 |
| population-level history of the wrentit (chamaea fasciata): implications for comparative phylogeography in the california floristic province. | the phylogeography of a variety of species has been studied within the california floristic province; however, few studies have examined genetic variation in bird species across the entire region. this study uses mitochondrial dna data to investigate the phylogeography of the wrentit (chamaea fasciata), a sedentary bird native to scrub and chaparral habitats of this region. analysis of molecular variance shows geographic structure, and maximum likelihood, bayesian, and parsimony analyses consist ... | 2006 | 16129629 |