Lower Bird Evenness and Diversity Are Associated With Higher Usutu Prevalence in Culex pipiens Mosquitoes

IF 2.4 2区农林科学 Q3 INFECTIOUS DISEASES

Zoonoses and Public Health Pub Date : 2025-02-18 DOI:10.1111/zph.13213

Victor Rodriguez-Valencia, Marie-Marie Olive, Gilbert Le Goff, Marine Faisse, Christophe Paupy, David Roiz

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引用次数: 0

Abstract

Introduction

The mosquito-transmitted Usutu virus has spread in the last few years, becoming endemic in several areas of Europe, such as in the southern French region of the Camargue. Our aim was to study the relationships between the presence of the viral agent in Culex mosquitoes and the structure of bird communities in the context of the dilution effect.

Methods

We carried out mosquito and bird censuses in several selected localities across a land-use gradient and screened mosquito pools for flaviviruses. We focused on exploring how host bird diversity, richness, abundance and evenness were associated with Usutu detection in Cx. pipiens.

Results

Usutu virus was detected in seven pools of Cx. pipiens, and phylogenetic analysis identified Usutu lineage Africa 3, confirming its circulation. The probability of detection in mosquitoes is associated with areas with lower bird evenness and diversity but higher bird abundance and richness and higher Cx. pipiens abundances.

Conclusions

Bird evenness was the variable with the greatest explanatory power, being negatively related to the probability of detecting Usutu in Cx. pipiens, supporting a dilution effect. These results will help us better understand the relationships between bird community structure and the risk of Usutu mosquito-borne disease.

Abstract Image

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较低的鸟类均匀度和多样性与较高的常住流行率有关。

导言：蚊子传播的Usutu病毒在过去几年中已经传播，在欧洲的几个地区，如法国南部的卡马格地区，成为地方病。我们的目的是在稀释效应的背景下，研究库蚊中病毒剂的存在与鸟类群落结构的关系。方法：在不同土地利用梯度的几个选定地点进行蚊子和鸟类普查，并筛选蚊子池中的黄病毒。我们重点探讨寄主鸟类多样性、丰富度、丰度和均匀度与Cx的Usutu检测之间的关系。侵害。结果：在Cx的7个池中检测到Usutu病毒。系统发育分析鉴定出乌苏图非洲3系，证实其传播。蚊子的检测概率与鸟类均匀度和多样性较低但鸟类丰度和丰富度较高和Cx较高的地区有关。侵害丰度。结论：鸟类均匀度是最具解释力的变量，与Cx中发现Usutu的概率呈负相关。这是一种稀释效应。这些结果将有助于我们更好地了解鸟类群落结构与乌苏图蚊媒疾病风险之间的关系。

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

Zoonoses and Public Health 医学-传染病学

CiteScore

5.30

自引率

4.20%

发文量

115

审稿时长

6-12 weeks

期刊介绍： Zoonoses and Public Health brings together veterinary and human health researchers and policy-makers by providing a venue for publishing integrated and global approaches to zoonoses and public health. The Editors will consider papers that focus on timely collaborative and multi-disciplinary research in zoonoses and public health. This journal provides rapid publication of original papers, reviews, and potential discussion papers embracing this collaborative spirit. Papers should advance the scientific knowledge of the sources, transmission, prevention and control of zoonoses and be authored by scientists with expertise in areas such as microbiology, virology, parasitology and epidemiology. Articles that incorporate recent data into new methods, applications, or approaches (e.g. statistical modeling) which enhance public health are strongly encouraged.