Publications

interspecific differences in hematozoan infection in sonoran desert aimophila sparrows.	numerous studies have identified factors that control avian hematozoan infections, but the mechanisms that account for host differences in parasitemia remain largely speculative. to address this issue, we compared the prevalence of these parasites in stained blood smears from four conspecific sonoran desert aimophila sparrow species sampled during their breeding season: rufous-winged (aimophila carpalis; rwsp), rufous-crowned (aimophila ruficeps; rcsp), cassin's (aimophila cassinii, casp), and b ...	2005	16244063
glutamatergic stimulation of luteinising hormone secretion in relatively refractory male songbirds.	seasonal breeding in two sonoran desert passerines, the cassin's (aimophila cassinii) and rufous-crowned (aimophila ruficeps) sparrows is thought to be terminated by the development of a decrease in responsiveness to photostimulation, a condition known as relative photorefractoriness. it was predicted that the development of relative refractoriness is a consequence of a decrease in gonadotrophin-releasing hormone (gnrh) synthesis and associated stores of releasable gnrh. this hypothesis was test ...	2008	18673412