Hendy Adam, Fé Nelson Ferreira, Pedrosa Igor, Girão André, Dos Santos Taly Nayandra Figueira, Mendonça Claudia Reis, Andes Júnior José Tenaçol, Assunção Flamarion Prado, Costa Edson Rodrigues, Sluydts Vincent, Gordo Marcelo, Scarpassa Vera Margarete, Buenemann Michaela, de Lacerda Marcus Vinícius Guimarães, Mourão Maria Paula Gomes, Vasilakis Nikos, Hanley Kathryn A
Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA.
Department of Biology, New Mexico State University, Las Cruces, New Mexico, USA.
bioRxiv. 2024 May 3:2024.04.30.591911. doi: 10.1101/2024.04.30.591911.
Forest edges, where humans, mosquitoes, and wildlife interact, may serve as a nexus for zoonotic arbovirus exchange. Although often treated as uniform interfaces, the landscape context of edge habitats can greatly impact ecological interactions. Here, we investigated how the landscape context of forest edges shapes mosquito community structure in an Amazon rainforest reserve near the city of Manaus, Brazil, using hand-nets to sample mosquitoes at three distinct forest edge types. Sampling sites were situated at edges bordering urban land cover, rural land cover, and natural treefall gaps, while sites in continuous forest served as controls. Community composition differed substantially among edge types, with rural edges supporting the highest species diversity. Rural edges also provided suitable habitat for forest specialists, including key sylvatic vectors, of which was the most abundant species sampled overall. Our findings emphasize the importance of landscape context in assessing pathogen emergence risk at forest edges.
森林边缘地带是人类、蚊子和野生动物相互作用的区域，可能成为人畜共患虫媒病毒传播的枢纽。尽管森林边缘通常被视为统一的界面，但边缘栖息地的景观背景会极大地影响生态相互作用。在此，我们研究了巴西玛瑙斯市附近一个亚马逊雨林保护区内森林边缘的景观背景如何塑造蚊子群落结构，通过用手网在三种不同类型的森林边缘采集蚊子样本。采样地点分别位于与城市土地覆盖、农村土地覆盖接壤的边缘以及天然树木倒伏形成的林窗处，而连续森林中的地点作为对照。不同边缘类型的群落组成差异很大，农村边缘的物种多样性最高。农村边缘还为森林特化物种提供了适宜的栖息地，包括关键的野生媒介，其中[物种名称未给出]是总体采样中数量最多的物种。我们的研究结果强调了景观背景在评估森林边缘病原体出现风险方面的重要性。
