Habitat characterization and spatial distribution of Anopheles sp. mosquito larvae in Dar es Salaam (Tanzania) during an extended dry period
Habitat characterization and spatial distribution of Anopheles sp. mosquito larvae in Dar es Salaam (Tanzania) during an extended dry period
复制标题
按蚊的栖息地特征和空间分布。
作者：
M. A. Sattler;D. Mtasiwa;M. Kiama;Z. Premji;M. Tanner;G. Killeen;C. Lengeler
到2030年，超过50%的非洲人口将生活在城市地区。控制疟疾可减轻疾病负担，进一步促进经济发展。作为处理过的蚊帐的补充和及时获得治疗，针对按蚊幼虫阶段的措施是城市地区一项有希望的战略。然而，对繁殖地点的地理位置和潜在的生态特征的精确了解对于此类干预措施至关重要。方法系统搜索坦桑尼亚最大城市达累斯萨拉姆中部151 km2的蚊虫孳生场所。记录各样点的生态参数、蚊幼虫密度和地理位置。采用Logistic回归分析确定影响不同蚊幼虫密度的关键生态因子。结果共发现潜在开放繁殖地405处。大排水沟、沼泽和水坑与按蚊幼虫密度无或低相关。当水被确定为“浑浊”时，按蚊幼虫出现的可能性降低。小型孳生地以按蚊幼虫居多。冈比亚按蚊（Anopheles gambiae s.l.）幼虫在高度有机污染的生境中被发现。结论在该环境下，未发现明确的按蚊幼虫孳生需求的生态学特征。因此，每一个停滞的开放水体，包括污染严重的水体，都必须被视为潜在的疟疾病媒滋生地。
IntroductionBy 2030, more than 50% of the African population will live in urban areas. Controlling malaria reduces the disease burden and further improves economic development. As a complement to treated nets and prompt access to treatment, measures targeted against the larval stage of Anopheles sp. mosquitoes are a promising strategy for urban areas. However, a precise knowledge of the geographic location and potentially of ecological characteristics of breeding sites is of major importance for such interventions.MethodsIn total 151 km2 of central Dar es Salaam, the biggest city of Tanzania, were systematically searched for open mosquito breeding sites. Ecologic parameters, mosquito larvae density and geographic location were recorded for each site. Logistic regression analysis was used to determine the key ecological factors explaining the different densities of mosquito larvae.ResultsA total of 405 potential open breeding sites were examined. Large drains, swamps and puddles were associated with no or low Anopheles sp. larvae density. The probability of Anopheles sp. larvae to be present was reduced when water was identified as "turbid". Small breeding sites were more commonly colonized by Anopheles sp. larvae. Further, Anopheles gambiae s.l. larvae were found in highly organically polluted habitats.ConclusionsClear ecological characteristics of the breeding requirements of Anopheles sp. larvae could not be identified in this setting. Hence, every stagnant open water body, including very polluted ones, have to be considered as potential malaria vector breeding sites.
影响因子：
11.1
作者：
A. Knudsen;R. Slooff
通讯作者：
A. Knudsen;R. Slooff
研究非洲城市人类活动与疟疾媒介之间关系的地理抽样策略。
DOI：
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发表时间：
2003
期刊：
The American journal of tropical medicine and hygiene
影响因子：
--
作者：
Keating,Joseph;MacIntyre,Kate;Mbogo,Charles;Githeko,Andrew;Regens,JamesL;Swalm,Chris;Ndenga,Bryson;Steinberg,LauraJ;Kibe,Lydiah;Githure,JohnI;Beier,JohnC
通讯作者：
Beier,JohnC