Tsireledzo G Makwarela, Appolinaire Djikeng, Tracy M Masebe, Nyangiwe Nkululeko, Lucky T Nesengani, Ntanganedzeni O Mapholi
{"title":"影响南非六个省蜱虫分布的病媒丰度和相关非生物因素。","authors":"Tsireledzo G Makwarela, Appolinaire Djikeng, Tracy M Masebe, Nyangiwe Nkululeko, Lucky T Nesengani, Ntanganedzeni O Mapholi","doi":"10.14202/vetworld.2024.1765-1777","DOIUrl":null,"url":null,"abstract":"<p><strong>Background and aim: </strong>Climatic conditions significantly impact the life stages and distribution patterns of ticks and tick-borne diseases. South Africa's central plateau and various biomes offer a distinct landscape for studying the geography's effects. The study estimated tick species prevalence and the influential factors on their survival.</p><p><strong>Materials and methods: </strong>Ticks were gathered from communal cattle in South African provinces including Limpopo (LP), Gauteng (GP), Mpumalanga (MP), KwaZulu-Natal (KZN), the Eastern Cape (EC), and the Free State (FS), from September 2020 to November 2022. Using data from South African weathercasts, the annual climate was assessed.</p><p><strong>Results: </strong>A total of 3,409 ticks were collected, with the highest infestation observed in KZN (45%), followed by LP (26%), EC (19%), GP (5%), MP (2%), and the FS (2%). The most prevalent tick species were <i>Amblyomma hebraeum</i> (55.1%), <i>Rhipicephalus evertsi evertsi</i> (13.9%) and <i>Rhipicephalus</i> (<i>Boophilus</i>), <i>and decoloratus</i> (11.9%). Other species included <i>R</i>. (<i>Boophilus</i>) <i>microplus</i> (10.85%), <i>Hyalomma marginatum</i> (4.8%), <i>Rhipicephalus appendiculatus</i> (1.4%), <i>Harpalus rufipes</i> (0.8%), <i>Rhipicephalus exophthalmos</i> (0.2%), <i>Rhipicephalus glabroscutatus</i> (0.2%), <i>Rhipicephalus sanguineus</i> (0.2%)<i>, Haemaphysalis silacea</i> (0.5%), <i>Ixodes pilosus</i> (0.1%), and <i>Rhipicephalus simus</i> (0.1%). The infestations were most prevalent on farms in Pongola and KZN. The temperature fluctuated between 12°C and 35°C during data gathering, while humidity varied between 40% and 65%.</p><p><strong>Conclusion: </strong>This study showed that ticks survive optimally in warm temperatures and high humidity conditions. Livestock farms with high tick infestations may be associated with several risk factors. These practices could involve suboptimal grazing, insufficient acaricidal treatment, and detrimental effects resulting from traditional animal husbandry. Future research is needed to longitudinally evaluate the effects of climate change on tick populations, pathogen transmission, hosts, habitats, and human behavior, influencing potential exposure risks.</p>","PeriodicalId":23587,"journal":{"name":"Veterinary World","volume":"17 8","pages":"1765-1777"},"PeriodicalIF":1.7000,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11422648/pdf/","citationCount":"0","resultStr":"{\"title\":\"Vector abundance and associated abiotic factors that influence the distribution of ticks in six provinces of South Africa.\",\"authors\":\"Tsireledzo G Makwarela, Appolinaire Djikeng, Tracy M Masebe, Nyangiwe Nkululeko, Lucky T Nesengani, Ntanganedzeni O Mapholi\",\"doi\":\"10.14202/vetworld.2024.1765-1777\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background and aim: </strong>Climatic conditions significantly impact the life stages and distribution patterns of ticks and tick-borne diseases. South Africa's central plateau and various biomes offer a distinct landscape for studying the geography's effects. The study estimated tick species prevalence and the influential factors on their survival.</p><p><strong>Materials and methods: </strong>Ticks were gathered from communal cattle in South African provinces including Limpopo (LP), Gauteng (GP), Mpumalanga (MP), KwaZulu-Natal (KZN), the Eastern Cape (EC), and the Free State (FS), from September 2020 to November 2022. Using data from South African weathercasts, the annual climate was assessed.</p><p><strong>Results: </strong>A total of 3,409 ticks were collected, with the highest infestation observed in KZN (45%), followed by LP (26%), EC (19%), GP (5%), MP (2%), and the FS (2%). The most prevalent tick species were <i>Amblyomma hebraeum</i> (55.1%), <i>Rhipicephalus evertsi evertsi</i> (13.9%) and <i>Rhipicephalus</i> (<i>Boophilus</i>), <i>and decoloratus</i> (11.9%). Other species included <i>R</i>. (<i>Boophilus</i>) <i>microplus</i> (10.85%), <i>Hyalomma marginatum</i> (4.8%), <i>Rhipicephalus appendiculatus</i> (1.4%), <i>Harpalus rufipes</i> (0.8%), <i>Rhipicephalus exophthalmos</i> (0.2%), <i>Rhipicephalus glabroscutatus</i> (0.2%), <i>Rhipicephalus sanguineus</i> (0.2%)<i>, Haemaphysalis silacea</i> (0.5%), <i>Ixodes pilosus</i> (0.1%), and <i>Rhipicephalus simus</i> (0.1%). The infestations were most prevalent on farms in Pongola and KZN. The temperature fluctuated between 12°C and 35°C during data gathering, while humidity varied between 40% and 65%.</p><p><strong>Conclusion: </strong>This study showed that ticks survive optimally in warm temperatures and high humidity conditions. Livestock farms with high tick infestations may be associated with several risk factors. These practices could involve suboptimal grazing, insufficient acaricidal treatment, and detrimental effects resulting from traditional animal husbandry. Future research is needed to longitudinally evaluate the effects of climate change on tick populations, pathogen transmission, hosts, habitats, and human behavior, influencing potential exposure risks.</p>\",\"PeriodicalId\":23587,\"journal\":{\"name\":\"Veterinary World\",\"volume\":\"17 8\",\"pages\":\"1765-1777\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2024-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11422648/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Veterinary World\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.14202/vetworld.2024.1765-1777\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/8/13 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"AGRICULTURE, DAIRY & ANIMAL SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Veterinary World","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.14202/vetworld.2024.1765-1777","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/8/13 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
Vector abundance and associated abiotic factors that influence the distribution of ticks in six provinces of South Africa.
Background and aim: Climatic conditions significantly impact the life stages and distribution patterns of ticks and tick-borne diseases. South Africa's central plateau and various biomes offer a distinct landscape for studying the geography's effects. The study estimated tick species prevalence and the influential factors on their survival.
Materials and methods: Ticks were gathered from communal cattle in South African provinces including Limpopo (LP), Gauteng (GP), Mpumalanga (MP), KwaZulu-Natal (KZN), the Eastern Cape (EC), and the Free State (FS), from September 2020 to November 2022. Using data from South African weathercasts, the annual climate was assessed.
Results: A total of 3,409 ticks were collected, with the highest infestation observed in KZN (45%), followed by LP (26%), EC (19%), GP (5%), MP (2%), and the FS (2%). The most prevalent tick species were Amblyomma hebraeum (55.1%), Rhipicephalus evertsi evertsi (13.9%) and Rhipicephalus (Boophilus), and decoloratus (11.9%). Other species included R. (Boophilus) microplus (10.85%), Hyalomma marginatum (4.8%), Rhipicephalus appendiculatus (1.4%), Harpalus rufipes (0.8%), Rhipicephalus exophthalmos (0.2%), Rhipicephalus glabroscutatus (0.2%), Rhipicephalus sanguineus (0.2%), Haemaphysalis silacea (0.5%), Ixodes pilosus (0.1%), and Rhipicephalus simus (0.1%). The infestations were most prevalent on farms in Pongola and KZN. The temperature fluctuated between 12°C and 35°C during data gathering, while humidity varied between 40% and 65%.
Conclusion: This study showed that ticks survive optimally in warm temperatures and high humidity conditions. Livestock farms with high tick infestations may be associated with several risk factors. These practices could involve suboptimal grazing, insufficient acaricidal treatment, and detrimental effects resulting from traditional animal husbandry. Future research is needed to longitudinally evaluate the effects of climate change on tick populations, pathogen transmission, hosts, habitats, and human behavior, influencing potential exposure risks.
期刊介绍:
Veterinary World publishes high quality papers focusing on Veterinary and Animal Science. The fields of study are bacteriology, parasitology, pathology, virology, immunology, mycology, public health, biotechnology, meat science, fish diseases, nutrition, gynecology, genetics, wildlife, laboratory animals, animal models of human infections, prion diseases and epidemiology. Studies on zoonotic and emerging infections are highly appreciated. Review articles are highly appreciated. All articles published by Veterinary World are made freely and permanently accessible online. All articles to Veterinary World are posted online immediately as they are ready for publication.