da Silva Pessoa Vieira Carla Julia, Steiner São Bernardo Christine, Ferreira da Silva David José, Rigotti Kubiszeski Janaína, Serpa Barreto Eriana, de Oliveira Monteiro Hamilton Antônio, Canale Gustavo Rodrigues, Peres Carlos Augusto, Massey Aimee Leigh, Levi Taal, Vieira de Morais Bronzoni Roberta
Instituto de Ciências da Saúde, Universidade Federal de Mato Grosso, Sinop, Brazil.
Departamento de Ciências Biológicas, Universidade do Estado de Mato Grosso, Caceres, Brazil.
Transbound Emerg Dis. 2022 Jul;69(4):1770-1781. doi: 10.1111/tbed.14154. Epub 2021 Jun 16.
The Amazon rainforest is considered the largest reservoir of culicids and arboviruses in the world. It has been under intense human-driven alteration, especially in the so-called 'Arc of Deforestation', located in the eastern and southern regions. The emergence and transmission of infectious diseases are increasing, potentially due to land-use change. We used landscape-scale mosquito surveillance across a forest fragmentation gradient in the southern Amazon to evaluate the relationship between forest disturbance and the composition and structure of mosquito communities with a particular focus on the potential for arbovirus emergence in the region. Generalized linear models and logistic regression were used to associate the degree of landscape disturbance with arbovirus vectors' richness and abundance. A total of 1,960 culicids, belonging to 50 species, were collected from 2015 to 2016. Among these species, 20 have been associated with the transmission of arboviruses. Our results show an association of land use, more specifically small size of forest remnants with more irregular shape and higher edge density, with the increase of arbovirus vectors' richness and abundance. Six species of mosquito vectors exhibited a higher probability of occurrence in landscapes with medium or high degrees of disturbance. Our results indicate that land-use change influences mosquito communities with potential implications for the emergence of arboviruses.
亚马逊雨林被认为是世界上最大的蚊科昆虫和虫媒病毒库。它一直受到强烈的人为驱动的改变，特别是在位于东部和南部地区的所谓“森林砍伐弧带”。传染病的出现和传播正在增加，这可能是由于土地利用变化所致。我们在亚马逊南部的森林破碎化梯度上进行了景观尺度的蚊虫监测，以评估森林干扰与蚊虫群落组成和结构之间的关系，特别关注该地区虫媒病毒出现的可能性。使用广义线性模型和逻辑回归将景观干扰程度与虫媒病毒载体的丰富度和丰度联系起来。2015年至2016年共收集了1960只蚊科昆虫，分属50个物种。在这些物种中，有20种与虫媒病毒的传播有关。我们的结果表明，土地利用，更具体地说是形状更不规则、边缘密度更高的小面积森林残余地，与虫媒病毒载体的丰富度和丰度增加有关。六种蚊媒在中度或高度干扰的景观中出现的概率更高。我们的结果表明，土地利用变化会影响蚊虫群落，对虫媒病毒的出现可能产生影响。
