Diversity of Hard Tick Populations and Their Geographical Variations in Northwestern Iran.

IF 0.6 4区医学 Q4 PARASITOLOGY

Journal of Arthropod-Borne Diseases Pub Date : 2021-06-30 eCollection Date: 2021-06-01 DOI:10.18502/jad.v15i2.7487

Rohollah Moradi, Eslam Moradi-Asl, Zakkyeh Telmadarraiy, Seyedeh Zahra Parkhideh, Yavar Rassi

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引用次数: 0

Abstract

Background: Ticks are forced vertebrate ectoparasites, including humans, and are vectors of serious diseases such as Crimean Congo Hemorrhagic Fever, Relapsing Fever, and various forms of encephalitis. Spatial assessment of the prevalence of ticks and detection of high risk areas for tick-borne disease transmission and evaluation of ecological measures are key aims of this research.

Methods: Ticks were collected using standard methods from 27 villages in the region of Sarab County in north-eastern Iran during the four seasons of 2018-2019 and identified using valid keys. The calculations of indices for biodiversity were based on the Margalef index, Shannon-Weiner index and Simpson index. R2.15 Statistical software was used for statistical analysis of indices of biodiversity, and ArcMap10.4.1 software, IDW and GeneralG methods were used. Analysis were used to investigate spatial distribution and to determine important tick hotspots.

Results: A total of 2500 animals surveyed, 35% of them were infected. In total, 1416 ticks were caught, 74.6 %, 23.9% and 1.4 % were adult, nymph and larvae respectively. 94% of the ticks were hard ticks including 6 genera. According to the Margalef diversity index, the highest species biodiversity was related to summer (1.4234), and the lowest was related to winter (0.7379).

Conclusion: Large hotspot area was found in the central part of the study area. The area of study was very prone to tick-borne disease transmission in terms of tick diversity and tick species richness. Tick-borne disease control is an important measure.

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伊朗西北部硬蜱种群多样性及其地理变异。

背景:蜱是包括人类在内的脊椎动物体外寄生虫，是严重疾病的媒介，如克里米亚刚果出血热、回归热和各种形式的脑炎。蜱流行的空间评价、蜱传疾病传播的高发区检测和生态措施评价是本研究的主要目的。方法:2018-2019年4个季节，采用标准方法在伊朗东北部萨拉布县27个村庄采集蜱虫，并使用有效密钥进行鉴定。生物多样性指数的计算基于Margalef指数、Shannon-Weiner指数和Simpson指数。生物多样性指数采用R2.15统计软件，ArcMap10.4.1软件，IDW和GeneralG方法进行统计分析。利用分析方法调查蜱虫的空间分布，确定重要的蜱虫热点。结果:共调查动物2500只，检出率35%。共捕获蜱1416只，成蜱占74.6%，若虫占23.9%，幼虫占1.4%。其中硬蜱占94%，包括6属。根据Margalef多样性指数，物种多样性最高的是夏季(1.4234)，最低的是冬季(0.7379)。结论:研究区中部存在较大的热点区。从蜱的多样性和种类丰富度来看，研究区很容易发生蜱传疾病的传播。防治蜱传疾病是一项重要措施。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Arthropod-Borne Diseases PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH-PARASITOLOGY

CiteScore

2.00

自引率

11.10%

发文量

审稿时长

8 weeks

期刊介绍： The journal publishes original research paper, short communication, scientific note, case report, letter to the editor, and review article in English. The scope of papers comprises all aspects of arthropod borne diseases including: ● Systematics ● Vector ecology ● Epidemiology ● Immunology ● Parasitology ● Molecular biology ● Genetics ● Population dynamics ● Toxicology ● Vector control ● Diagnosis and treatment and other related subjects.