Assessing current and future areas of ecological suitability for Lutzomyia shannoni in North America.

IF 3 2区医学 Q1 PARASITOLOGY

Parasites & Vectors Pub Date : 2025-04-25 DOI:10.1186/s13071-025-06781-4

Sydney DeWinter, Grace K Nichol, Christopher Fernandez-Prada, Amy L Greer, J Scott Weese, Katie M Clow

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引用次数: 0

Abstract

Background: In the Americas, sand flies of the Lutzomyia genus are the vectors of pathogens of human and animal health significance. Lutzomyia shannoni is suspected to transmit vesicular stomatitis virus, along with Leishmania mexicana and Leishmania infantum (causative agents of leishmaniases). Despite the suspected vector potential of Lu. shannoni, significant knowledge gaps remain, including how ongoing climate changes could facilitate their range expansion. The objectives of this study were to predict the current and future ecological suitability of regions across North America for Lu. shannoni and to identify variables driving ecological suitability.

Methods: Occurrence records were obtained from the Global Biodiversity Information Facility, Disease Vectors Database, the National Museum of Natural History (Smithsonian Institution) and published literature on Lu. shannoni surveillance and capture. Historical climate data from 1991-2020, along with projection data for Shared Socioeconomic Pathways 2-4.5 and 3-7.0 were obtained. An additional terrestrial ecoregions layer was applied. The ecological niche model was created using maximum entropy (MaxEnt) algorithms to identify regions which currently are or may become ecologically suitable for Lu. shannoni.

Results: Currently, regions in eastern, western and southern Mexico, along with the Midwest, southeastern and eastern regions of the USA are ecologically suitable for Lu. shannoni. In the future, ecological suitability for Lu. shannoni is expected to increase slightly in the northeastern regions of the USA and in Atlantic Canada, and to decrease in the southeastern reaches of Mexico. Degree-days below 0 °C (spring and autumn), precipitation as snow (summer and winter), terrestrial ecoregions, number of frost-free days (summer), Hargreaves climatic moisture deficit (summer), degree-days above 5 °C (autumn) and Hogg's climatic moisture index (summer) were all identified as predictors of ecological suitability.

Conclusions: The findings from this study identified climate and environmental variables driving the ecological suitability of regions for Lu. shannoni and can be used to inform public health professionals of high-risk regions for exposure at present and into the future.

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评估目前和未来在北美地区的生态适宜性。

背景：在美洲，Lutzomyia属的沙蝇是对人类和动物健康有重要意义的病原体的媒介。怀疑山氏卢茨米亚原虫与墨西哥利什曼原虫和幼利什曼原虫（利什曼病的病原体）一起传播水疱性口炎病毒。尽管怀疑卢的向量势。Shannoni说，重大的知识差距仍然存在，包括持续的气候变化如何促进它们的活动范围扩大。本研究的目的是预测北美地区目前和未来的生态适宜性。并确定驱动生态适宜性的变量。方法：从全球生物多样性信息设施、疾病媒介数据库、美国国家自然博物馆（史密森学会）和已发表的有关鹿群的文献中获取发生记录。夏诺尼监视和捕获。获得了1991-2020年的历史气候数据，以及共享社会经济路径2-4.5和3-7.0的预测数据。增加了一个陆地生态区层。利用最大熵（MaxEnt）算法建立生态位模型，识别目前或可能成为鹿群生态适宜区域。shannoni。结果：目前，墨西哥东部、西部和南部地区以及美国中西部、东南部和东部地区的生态适宜鹿群生长。shannoni。未来，生态适宜性为卢。在美国东北部地区和加拿大大西洋沿岸地区，“山诺尼”预计将略有增加，而在墨西哥东南部地区则会减少。0℃以下（春季和秋季）、降雪（夏季和冬季）、陆地生态区域、无霜期（夏季）、Hargreaves气候水分亏缺（夏季）、5℃以上（秋季）和Hogg气候水分指数（夏季）均可作为生态适宜性的预测因子。结论：本研究发现气候和环境变量决定了鲁族地区的生态适宜性。Shannoni和Shannoni可用于向公共卫生专业人员通报目前和将来暴露的高危地区。

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

Parasites & Vectors 医学-寄生虫学

CiteScore

6.30

自引率

9.40%

发文量

433

审稿时长

1.4 months

期刊介绍： Parasites & Vectors is an open access, peer-reviewed online journal dealing with the biology of parasites, parasitic diseases, intermediate hosts, vectors and vector-borne pathogens. Manuscripts published in this journal will be available to all worldwide, with no barriers to access, immediately following acceptance. However, authors retain the copyright of their material and may use it, or distribute it, as they wish. Manuscripts on all aspects of the basic and applied biology of parasites, intermediate hosts, vectors and vector-borne pathogens will be considered. In addition to the traditional and well-established areas of science in these fields, we also aim to provide a vehicle for publication of the rapidly developing resources and technology in parasite, intermediate host and vector genomics and their impacts on biological research. We are able to publish large datasets and extensive results, frequently associated with genomic and post-genomic technologies, which are not readily accommodated in traditional journals. Manuscripts addressing broader issues, for example economics, social sciences and global climate change in relation to parasites, vectors and disease control, are also welcomed.