期刊论文详细信息
Avian Conservation and Ecology
Prevalence of haemosporidians in a Neotropical endemic bird area
CatalinaGonzalez-Quevedo,1 
[1] Grupo Ecolog
关键词: avian malaria;    endemic bird area;    haemosporidian;    Sierra Nevada de Santa Marta;   
DOI  :  10.5751/ACE-00834-110107
学科分类:社会科学、人文和艺术(综合)
来源: Resilience Alliance Publications
PDF
【 摘 要 】

Haemosporidians are vector-transmitted intracellular parasites that occur in many bird species worldwide and may have important implications for wild bird populations. Surveys of haemosporidians have traditionally focused on Europe and North America, and only recently have they been carried out in the Neotropics, where the prevalence and impacts of the disease have been less studied and are not well understood. In this study we carried out a survey in the endemic bird area of the Sierra Nevada de Santa Marta (SNSM), an isolated coastal massif in northern Colombia that contains a large number of biomes and that is experiencing high rates of habitat loss. We sampled birds from 25 species at 2 different altitudes (1640 and 2100 m asl) and determined avian haemosporidian infection by polymerase chain reaction and sequencing a portion of the cytochrome b (cyt b) gene of the parasite. From the sampled birds, 32.1% were infected by at least 1 of 12 unique cyt b lineages of haemosporidian genera: Plasmodium, Leucocytozoon, Haemoproteus, and subgenus Parahaemoproteus. We found a higher prevalence of avian haemosporidians at low altitudes (1640 m asl). All endemic bird species we sampled had at least one individual infected with avian haemosporidians. We also found evidence of higher overall prevalence among endemic rather than nonendemic birds, suggesting higher susceptibility in endemic birds. Overall, our findings suggest a high haemosporidian species richness in the bird community of the SNSM. Considering the rate of habitat loss that this area is experiencing, it is important to understand how avian haemosporidians affect bird populations; furthermore, more exhaustive sampling is required to fully comprehend the extent of avian haemosporidian infection in the area.

【 授权许可】

Others   

【 预 览 】
附件列表
Files Size Format View
RO201902010414866ZK.pdf 1283KB PDF download
  文献评价指标  
  下载次数:13次 浏览次数:20次