PDF(Pubmed)
Abstract：
In the Americas, wild yellow fever (WYF) is an infectious disease that is highly lethal for some non-human primate species and non-vaccinated people. Specifically, in the Brazilian Atlantic Forest, Haemagogus leucocelaenus and Haemagogus janthinomys mosquitoes act as the major vectors. Despite transmission risk being related to vector densities, little is known about how landscape structure affects vector abundance and movement. To fill these gaps, we used vector abundance data and a model-selection approach to assess how landscape structure affects vector abundance, aiming to identify connecting elements for virus dispersion in the state of São Paulo, Brazil. Our findings show that Hg. leucocelaenus and Hg. janthinomys abundances, in highly degraded and fragmented landscapes, are mainly affected by increases in forest cover at scales of 2.0 and 2.5 km, respectively. Fragmented landscapes provide ecological corridors for vector dispersion, which, along with high vector abundance, promotes the creation of risk areas for WYF virus spread, especially along the border with Minas Gerais state, the upper edges of the Serra do Mar, in the Serra da Cantareira, and in areas of the metropolitan regions of São Paulo and Campinas.
摘要：
在美洲,野生黄热病（WYF）是一种传染病，对一些非人类灵长类动物物种和未接种疫苗的人来说是高度致命的。具体来说,在巴西大西洋森林，Haemagogusleucocelaenus和Haemagogusjanthinomys蚊子是主要媒介。尽管传播风险与矢量密度有关，对景观结构如何影响矢量丰度和运动知之甚少。为了填补这些空白，我们使用矢量丰度数据和模型选择方法来评估景观结构如何影响矢量丰度，旨在确定圣保罗州病毒传播的连接元件，巴西。我们的研究结果表明，Hg。白细胞和汞。janthinomys丰富，在高度退化和支离破碎的景观中，主要受2.0和2.5公里尺度的森林覆盖率增加的影响，分别。破碎的景观为矢量分散提供了生态走廊，which,以及高载体丰度，促进创建WYF病毒传播的风险区域，尤其是沿着米纳斯吉拉斯州的边界，SerradoMar的上边缘，在SerradaCantareira,以及圣保罗和坎皮纳斯等大都市地区。
