Chaverri Luis Guillermo, Dillenbeck Claire, Lewis Devon, Rivera Cindy, Romero Luis Mario, Chaves Luis Fernando
Departamento de Ciencias Naturales, Escuela de Enseñanza de las Ciencias, Universidad Estadal a Distancia, San Pedro de Montes de Oca, San José, Costa Rica.
Department of Biology, Emory University, Atlanta, GA, USA.
J Med Entomol. 2018 May 4;55(3):646-653. doi: 10.1093/jme/tjx254.
Mosquito sampling using efficient traps that can assess species diversity and/or presence of dominant vectors is important for understanding the entomological risk of mosquito-borne disease transmission. Here, we present results from a survey of mosquito species sampled with ovitraps in a neotropical rainforest of Costa Rica. We found the method to be an efficient sampling tool. With a total sampling effort of 29 traps, we collected 157 fourth-instar larvae and three pupae belonging to eight mosquito taxonomic units (seven species and individuals from a homogenous taxonomic unit identified to the genus level). In our samples, we found two medically important species, Sabethes chloropterus (Humboldt) and Trichoprosopon digitatum (Rondani). The former is a proven vector of Yellow Fever in sylvatic environments and the later has been found infected with several arboviruses. We also found that mosquito species abundance and diversity increased with canopy cover and in environments where leaf litter dominated the ground cover. Finally, our results suggest that ovitraps have a great potential for systematic sampling in longitudinal and cross-sectional ecological "semi-field" studies in neotropical settings.
使用能够评估物种多样性和/或优势病媒存在情况的高效诱捕器进行蚊虫采样，对于了解蚊媒疾病传播的昆虫学风险至关重要。在此，我们展示了在哥斯达黎加新热带雨林中使用诱蚊产卵器对蚊虫种类进行调查的结果。我们发现该方法是一种高效的采样工具。在总共29个诱捕器的采样工作中，我们收集到了157只四龄幼虫和3只蛹，它们分属于八个蚊虫分类单元（七个物种以及一个鉴定到属级别的同质性分类单元中的个体）。在我们的样本中，我们发现了两种具有医学重要性的物种，即绿腹萨氏蚊（洪堡）和指状毛蠓（龙达尼）。前者是丛林环境中已证实的黄热病病媒，后者已被发现感染了多种虫媒病毒。我们还发现，蚊虫种类的丰富度和多样性随着树冠覆盖度的增加以及在落叶层占地面覆盖主导的环境中而增加。最后，我们的结果表明，诱蚊产卵器在新热带地区的纵向和横断面生态“半野外”研究中具有系统采样的巨大潜力。
