Species richness and abundance of wild tsetse flies collected from selected human-wildlife-livestock interface in Tanzania

IF 2 Q3 INFECTIOUS DISEASES
Filbert E. Mdee , Venance T. Msoffe , Eliakunda M. Mafie , Ladslaus L. Mnyone
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引用次数: 0

Abstract

The successful control of tsetse flies largely depends on understanding of the species available and abundance. This study assessed the species richness, abundance and apparent density of wild collected tsetse flies from selected human-wildlife-livestock interface in Tanzania. Seasonal trapping using baited NZI, Pyramidal and Biconical traps was done across selected wards. Traps were set at 200 m apart, emptied after every 24 h then rotated to the next sites after 72 h. Collected flies were identified morphologically and letter confirmed using the Polymerase Chain Reaction (PCR). Only two Glossina species; Glossina pallidipes (n = 371; 47.32 %) and Glossina morsitans morsitans (n = 413; 52.68 %) were identified. Among them, 96 flies (80 Female, 16 Male) were blood fed; 57(48 Female and 9 Male) G. pallidipes and 39(32 Female and 7 Male) G.m. morsitans. Tsetse fly abundance varied across wards (χ2 = 4.597, df = 1, p = 0.032), villages (χ2 = 9.491, df = 3, p = 0.023), habitats (χ2 = 17.239, df = 2, p < 0.001), months (χ2 = 13.507, df = 3, p = 0.004) and deployed traps (χ2 = 6.348, df = 2, p = 0.04). About 78.82 % of the total catch occurred in Kisaki ward (n = 618; p < 0.001) and 21.17 % (n = 166; p = 0.032) in Bwakila chini. Similarly, 62.37 % of the catch occurred in Mbojoge village. NZI traps (n = 422; 54 %; 4.98 FTD) were most successful traps. Moreover, 78.06 % of the catch occurred in bushed grassland habitat (n = 612; 55.41 FTD) while 5.48 % in farmland (n = 43; 7.17 FTD). This study recommends NZI and Pyramidal traps for tsetse flies control at the interface and proposes wet season as appropriate time for successful trapping of the flies. Finally, it attracts a need for assessing tsetse flies' blood meal sources and the infection status to establish the prevalence to inform existing trypanosome control programs.
从坦桑尼亚选定的人类-野生动物-家畜界面采集的野生采采蝇的物种丰富度和丰度
采采蝇的成功控制在很大程度上取决于对其种类和丰度的了解。这项研究评估了从坦桑尼亚选定的人类-野生动物-家畜交界处野生采集的采采蝇的物种丰富度、丰度和表观密度。使用带饵的 NZI、金字塔形和双锥形诱捕器在选定的病房进行季节性诱捕。诱捕器间隔 200 米设置,每隔 24 小时清空一次,然后在 72 小时后轮换到下一个地点。收集到的苍蝇通过聚合酶链式反应(PCR)进行形态鉴定和字母确认。仅鉴定出两种 Glossina:Glossina pallidipes(n = 371;47.32 %)和 Glossina morsitans morsitans(n = 413;52.68 %)。其中,96 只苍蝇(80 只雌蝇,16 只雄蝇)以血液为食;57 只(48 只雌蝇,9 只雄蝇)G. pallidipes 和 39 只(32 只雌蝇,7 只雄蝇)G.m. morsitans。采采蝇丰度在不同病房(χ2 = 4.597,df = 1,p = 0.032)、村庄(χ2 = 9.491,df = 3,p = 0.023)、栖息地(χ2 = 17.239, df = 2, p < 0.001)、月份(χ2 = 13.507, df = 3, p = 0.004)和布设的诱捕器(χ2 = 6.348, df = 2, p = 0.04)。总捕获量的约 78.82% 出现在 Kisaki 区(n = 618;p < 0.001),21.17%(n = 166;p = 0.032)出现在 Bwakila chini。同样,62.37%的捕获量出现在 Mbojoge 村。NZI 诱捕器(n = 422;54 %;4.98 FTD)是最成功的诱捕器。此外,78.06%的捕获量发生在灌木草地栖息地(n = 612;55.41 FTD),5.48%发生在农田(n = 43;7.17 FTD)。这项研究推荐在交界处使用 NZI 和金字塔诱捕器控制采采蝇,并建议将雨季作为成功诱捕采采蝇的适当时间。最后,该研究认为有必要评估采采蝇的血餐来源和感染状况,以确定流行率,为现有的锥虫控制计划提供参考。
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来源期刊
Parasite Epidemiology and Control
Parasite Epidemiology and Control Medicine-Infectious Diseases
CiteScore
5.70
自引率
3.10%
发文量
44
审稿时长
17 weeks
期刊介绍: Parasite Epidemiology and Control is an Open Access journal. There is an increasing amount of research in the parasitology area that analyses the patterns, causes, and effects of health and disease conditions in defined populations. This epidemiology of parasite infectious diseases is predominantly studied in human populations but also spans other major hosts of parasitic infections and as such this journal will have a broad remit. We will focus on the major areas of epidemiological study including disease etiology, disease surveillance, drug resistance and geographical spread and screening, biomonitoring, and comparisons of treatment effects in clinical trials for both human and other animals. We will also look at the epidemiology and control of vector insects. The journal will also cover the use of geographic information systems (Epi-GIS) for epidemiological surveillance which is a rapidly growing area of research in infectious diseases. Molecular epidemiological approaches are also particularly encouraged.
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