Montagner F R G, Silva O S, Jahnke S M
Programa de Pós-graduação em Biologia Animal, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
Braz J Biol. 2018 May;78(2):233-239. doi: 10.1590/1519-6984.04416. Epub 2017 Jul 27.
Aedes aegypti prefers densely populated habitats, but has been shown to explore less anthropogenic environments. We investigated composition of the abundance of mosquitoes in forested areas and assessed relationships between species occurrences and different types of land use and land cover at three spatial scales (100m, 500m and 1000m). Mosquitoes were collected from October 2012 to March 2013 using oviposition traps. We collected 4,179 mosquitoes in total including at least 10 species. Aedes albopictus and Limatus durhami were eudominant species, representing 90% of all collected individuals. We found intraspecific differences in response to land use and land cover, and species response patterns were similar at all spatial scales. Ae. albopictus relative abundance was associated with urbanized areas, while Li. durhami, Haemagogus leucocelaenus and Toxorhynchites sp., abundances were associated with native forest. Aedes aegypti were found in five of the eight areas studied, including in an Atlantic forest fragment at a considerable distance from the forest edge (370 m). Aedes aegypti occurrence was not influenced by type of land use or land cover.
埃及伊蚊更喜欢人口密集的栖息地，但已被证明会探索较少的人为环境。我们调查了森林地区蚊子的丰度组成，并在三个空间尺度（100米、500米和1000米）上评估了物种出现与不同类型土地利用和土地覆盖之间的关系。2012年10月至2013年3月期间，使用产卵诱捕器收集蚊子。我们总共收集了4179只蚊子，至少包括10个物种。白纹伊蚊和杜氏伊蚊是优势种，占所有收集个体的90%。我们发现了对土地利用和土地覆盖反应的种内差异，并且在所有空间尺度上物种反应模式相似。白纹伊蚊的相对丰度与城市化地区相关，而杜氏伊蚊、白纹哈氏蚊和巨蚊属的丰度与原生森林相关。在所研究的八个区域中的五个区域发现了埃及伊蚊，包括在距森林边缘相当远（370米）的一片大西洋森林碎片中。埃及伊蚊的出现不受土地利用或土地覆盖类型的影响。
