Hartup Barry K, Oberc Allison, Stott-Messick Briana, Davis Andrew K, Swarthout Elliott C H
School of Veterinary Medicine, University of Wisconsin, 2015 Linden Drive, Madison, Wisconsin 53706, USA.
J Wildl Dis. 2008 Apr;44(2):469-74. doi: 10.7589/0090-3558-44.2.469.
This study investigated the ecology of hematozoan parasites in two eastern populations of House Finch (Carpodacus mexicanus). Blood smears were obtained from birds captured in Georgia during 2001-2003 (n = 757) and New York during 2001 (n = 282) and evaluated for the presence of hematozoans. Low-density infections of Haemoproteus fringillae and Plasmodium relictum were confirmed at each location. Infections were observed year-round in Georgia, but primarily between June and November in New York. Overall, hematozoa were more prevalent in House Finches from Georgia than New York (P </= 0.01). The prevalence of infection was similar between finches of different age, sex, and reproductive status in Georgia. The low density of the infections observed suggests there is limited influence on host mortality.
本研究调查了东部两个家朱雀（Carpodacus mexicanus）种群中血内寄生原生动物的生态情况。2001年至2003年期间从佐治亚州捕获的鸟类（n = 757）以及2001年从纽约捕获的鸟类（n = 282）采集了血涂片，并评估血内寄生原生动物的存在情况。在每个地点均确认存在低水平的细纹血变原虫（Haemoproteus fringillae）和残疟原虫（Plasmodium relictum）感染。在佐治亚州全年都观察到感染情况，但在纽约主要发生在6月至11月之间。总体而言，佐治亚州家朱雀的血内寄生原生动物感染率高于纽约（P ≤ 0.01）。佐治亚州不同年龄、性别和繁殖状态的朱雀感染率相似。观察到的低感染密度表明对宿主死亡率的影响有限。
