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Nava S, Gamietea IJ, Morel N, Guglielmone AA, Estrada-Peña A. Assessment of habitat suitability for the cattle tick Rhipicephalus (Boophilus) microplus in temperate areas. Res Vet Sci 2022; 150:10-21. [DOI: 10.1016/j.rvsc.2022.04.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 11/28/2022]
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One Health Approach to Identify Research Needs on Rhipicephalus microplus Ticks in the Americas. Pathogens 2022; 11:pathogens11101180. [PMID: 36297237 PMCID: PMC9612381 DOI: 10.3390/pathogens11101180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/08/2022] [Accepted: 10/09/2022] [Indexed: 11/16/2022] Open
Abstract
We aim to provide a harmonized view of the factors that affect the survival and promote the spread of R. microplus in the Neotropics, approaching its different facets of biology, ecology, distribution, and control. We review the interactions among environmental niche, landscape fragmentation, vegetal coverage (abiotic traits), and the biotic aspects of its ecology (abundance of domesticated or wild competent hosts), proposing emerging areas of research. We emphasize a holistic view integrating an economically and ecologically sustainable control of infestations and transmitted pathogens by R. microplus in the Neotropics. Examples of research link the trends of climate, the composition of the community of hosts, the landscape features, and a tailored management based on ecological grounds. Our view is that factors driving the spread of R. microplus are complex and deeply interrelated, something that has been seldom considered in control strategies. The effects of climate may affect the dynamics of wildlife or the landscape composition, promoting new patterns of seasonal activity of the tick, or its spread into currently free areas. In this paper we encourage a One Health approach highlighting the main aspects governing the components of the tick’s life cycle and its interactions with livestock and wild animals.
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Yessinou RE, Cazan CD, Bonnet SI, Farougou S, Mihalca AD. Geographical distribution of hard ticks (Acari:Ixodidae) and tick-host associations in Benin, Burkina-Faso, Ivory-Coast and Togo. Acta Trop 2022; 232:106510. [PMID: 35568068 DOI: 10.1016/j.actatropica.2022.106510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 05/03/2022] [Accepted: 05/09/2022] [Indexed: 12/25/2022]
Abstract
Knowledge of ticks and associated pathogens is crucial to assess the risk of exposure of humans and animals to pathogens. For this review, we collected relevant data from published articles and field collections to provide an update on the biodiversity of ticks, and tick-host associations in four countries of West Africa: Benin, Burkina-Faso, Ivory-Coast, and Togo. The literature review was done according to Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. The search was limited to literature published from 1953 to 2021 in English and French sources. Out of 104 articles retrieved, only 41 studies met the eligibility criteria and were included in the review. The final database included a total of 53,619 adults, nymphs and larval ticks belonging to 24 species and five genera (Amblyomma, Haemaphysalis, Hyalomma, Ixodes and Rhipicephalus) that were collected from 23 different species of wild and domestic animals. This is the first record of Ixodes aulacodi and Rhipicephalus simpsoni in Benin, together with two new host records for A. latum. This checklist allows an update on tick-host associations and provides information on the diversity of ticks in West Africa.
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Affiliation(s)
- Roland Eric Yessinou
- Communicable Disease Research Unit (URMaT), University of Abomey-Calavi, Cotonou, Benin, 01 Po. Box: 2009, Cotonou, Benin.
| | - Cristina Daniela Cazan
- Department of Parasitology and Parasitic Diseases, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5 Calea Mănăştur, 400372, Cluj-Napoca, Romania; CDS-9 Molecular Biology and Veterinary Parasitology Unit, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 3-5 Calea Mănăştur, 400372, Cluj-Napoca, Romania
| | - Sarah Irène Bonnet
- Functional Genetics of Infectious Diseases Unit, Institut Pasteur, CNRS UMR 2000, Université de Paris, 75015, Paris, France; Animal Health Department, INRAE, 37380, Nouzilly, France
| | - Souaïbou Farougou
- Communicable Disease Research Unit (URMaT), University of Abomey-Calavi, Cotonou, Benin, 01 Po. Box: 2009, Cotonou, Benin
| | - Andrei Daniel Mihalca
- Department of Parasitology and Parasitic Diseases, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5 Calea Mănăştur, 400372, Cluj-Napoca, Romania
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Kopsco HL, Smith RL, Halsey SJ. A Scoping Review of Species Distribution Modeling Methods for Tick Vectors. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.893016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BackgroundGlobally, tick-borne disease is a pervasive and worsening problem that impacts human and domestic animal health, livelihoods, and numerous economies. Species distribution models are useful tools to help address these issues, but many different modeling approaches and environmental data sources exist.ObjectiveWe conducted a scoping review that examined all available research employing species distribution models to predict occurrence and map tick species to understand the diversity of model strategies, environmental predictors, tick data sources, frequency of climate projects of tick ranges, and types of model validation methods.DesignFollowing the PRISMA-ScR checklist, we searched scientific databases for eligible articles, their references, and explored related publications through a graphical tool (www.connectedpapers.com). Two independent reviewers performed article selection and characterization using a priori criteria.ResultsWe describe data collected from 107 peer-reviewed articles that met our inclusion criteria. The literature reflects that tick species distributions have been modeled predominantly in North America and Europe and have mostly modeled the habitat suitability for Ixodes ricinus (n = 23; 21.5%). A wide range of bioclimatic databases and other environmental correlates were utilized among models, but the WorldClim database and its bioclimatic variables 1–19 appeared in 60 (56%) papers. The most frequently chosen modeling approach was MaxEnt, which also appeared in 60 (56%) of papers. Despite the importance of ensemble modeling to reduce bias, only 23 papers (21.5%) employed more than one algorithm, and just six (5.6%) used an ensemble approach that incorporated at least five different modeling methods for comparison. Area under the curve/receiver operating characteristic was the most frequently reported model validation method, utilized in nearly all (98.9%) included studies. Only 21% of papers used future climate scenarios to predict tick range expansion or contraction. Regardless of the representative concentration pathway, six of seven genera were expected to both expand and retract depending on location, while Ornithodoros was predicted to only expand beyond its current range.ConclusionSpecies distribution modeling techniques are useful and widely employed tools for predicting tick habitat suitability and range movement. However, the vast array of methods, data sources, and validation strategies within the SDM literature support the need for standardized protocols for species distribution and ecological niche modeling for tick vectors.
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Viglietta M, Bellone R, Blisnick AA, Failloux AB. Vector Specificity of Arbovirus Transmission. Front Microbiol 2021; 12:773211. [PMID: 34956136 PMCID: PMC8696169 DOI: 10.3389/fmicb.2021.773211] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/19/2021] [Indexed: 12/20/2022] Open
Abstract
More than 25% of human infectious diseases are vector-borne diseases (VBDs). These diseases, caused by pathogens shared between animals and humans, are a growing threat to global health with more than 2.5 million annual deaths. Mosquitoes and ticks are the main vectors of arboviruses including flaviviruses, which greatly affect humans. However, all tick or mosquito species are not able to transmit all viruses, suggesting important molecular mechanisms regulating viral infection, dissemination, and transmission by vectors. Despite the large distribution of arthropods (mosquitoes and ticks) and arboviruses, only a few pairings of arthropods (family, genus, and population) and viruses (family, genus, and genotype) successfully transmit. Here, we review the factors that might limit pathogen transmission: internal (vector genetics, immune responses, microbiome including insect-specific viruses, and coinfections) and external, either biotic (adult and larvae nutrition) or abiotic (temperature, chemicals, and altitude). This review will demonstrate the dynamic nature and complexity of virus–vector interactions to help in designing appropriate practices in surveillance and prevention to reduce VBD threats.
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Affiliation(s)
- Marine Viglietta
- Unit of Arboviruses and Insect Vectors, Institut Pasteur, Sorbonne Université, Paris, France
| | - Rachel Bellone
- Unit of Arboviruses and Insect Vectors, Institut Pasteur, Sorbonne Université, Paris, France
| | - Adrien Albert Blisnick
- Unit of Arboviruses and Insect Vectors, Institut Pasteur, Sorbonne Université, Paris, France
| | - Anna-Bella Failloux
- Unit of Arboviruses and Insect Vectors, Institut Pasteur, Sorbonne Université, Paris, France
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Abstract
Ticks exist on all continents and carry more zoonotic pathogens than any other type of vector. Ticks spend most of their lives in the external environment away from the host and are thus expected to be affected by changes in climate. Most empirical and theoretical studies demonstrate or predict range shifts or increases in ticks and tick-borne diseases, but there can be a lot of heterogeneity in such predictions. Tick-borne disease systems are complex, and determining whether changes are due to climate change or other drivers can be difficult. Modeling studies can help tease apart and understand the roles of different drivers of change. Predictive models can also be invaluable in projecting changes according to different climate change scenarios. However, validating these models remains challenging, and estimating uncertainty in predictions is essential. Another focus for future research should be assessing the resilience of ticks and tick-borne pathogens to climate change.
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Affiliation(s)
- Lucy Gilbert
- Institute for Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, United Kingdom;
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Cotes-Perdomo AP, Oviedo Á, Castro LR. Molecular detection of pathogens in ticks associated with domestic animals from the Colombian Caribbean region. EXPERIMENTAL & APPLIED ACAROLOGY 2020; 82:137-150. [PMID: 32809186 DOI: 10.1007/s10493-020-00531-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Tick-borne diseases constitute a problem for livestock and public health. Given the socio-economic and environmental conditions of the Colombian Caribbean, ticks are particularly abundant, in turn exposing domestic animals and people in contact with them to such diseases. This study evaluates the presence of Babesia spp., Anaplasma spp., Coxiella spp. and Borrelia spp. in domestic animal ticks (Amblyomma mixtum, A. dissimile, Dermacentor nitens, Rhipicephalus sanguineus and R. microplus) by conventional PCR. Findings show a prevalence of 12.5% of Babesia, 0% of Borrelia, 39.4% of Anaplasma and 52.9% of Coxiella, whereas 6.2% of a total sample of 104 tick pools presented coinfections between Babesia and Anaplasma. Among the molecularly identified species are Ba. vogeli, Ba. bigemina and A. marginale, in addition to two Coxiella species-one being C. mudrowiae and the other similar to an undescribed endosymbiont of Rhipicephalus sp. It is necessary to evaluate the vector capacity of ticks such as A. mixtum, D. nitens and R. sanguineus in the transmission of A. marginale. Moreover, it is necessary to explore the role that bacteria of the genus Coxiella might have both in the health of humans and animals, and in the metabolism and reproduction of ticks. This is the first report on Babesia vogeli and B. bigemina in ticks from the Colombian Caribbean, representing a risk to animal and human health.
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Affiliation(s)
- Andrea P Cotes-Perdomo
- Grupo de Investigación Evolución, Sistemática Y Ecología Molecular (GIESEMOL), Universidad del Magdalena, Santa Marta, Colombia.
| | - Ángel Oviedo
- Grupo de Investigación Evolución, Sistemática Y Ecología Molecular (GIESEMOL), Universidad del Magdalena, Santa Marta, Colombia
| | - Lyda R Castro
- Grupo de Investigación Evolución, Sistemática Y Ecología Molecular (GIESEMOL), Universidad del Magdalena, Santa Marta, Colombia
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Marques R, Krüger RF, Peterson AT, de Melo LF, Vicenzi N, Jiménez-García D. Climate change implications for the distribution of the babesiosis and anaplasmosis tick vector, Rhipicephalus (Boophilus) microplus. Vet Res 2020; 51:81. [PMID: 32546223 PMCID: PMC7298856 DOI: 10.1186/s13567-020-00802-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 04/29/2020] [Indexed: 11/10/2022] Open
Abstract
Climate change ranks among the most important issues globally, affecting geographic distributions of vectors and pathogens, and inducing losses in livestock production among many other damaging effects. We characterized the potential geographic distribution of the ticks Rhipicephalus (Boophilus) microplus, an important vector of babesiosis and anaplasmosis globally. We evaluated potential geographic shifts in suitability patterns for this species in two periods (2050 and 2070) and under two emissions scenarios (RCPs 4.5 and 8.5). Our results anticipate increases in suitability worldwide, particularly in the highest production areas for cattle. The Indo-Malayan region resulted in the highest cattle exposure under both climate change projections (2050), with increases in suitability of > 30%. This study illustrates how ecological niche modeling can be used to explore probable effects of climate change on disease vectors, and the possible consequences on economic dimensions.
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Affiliation(s)
- Roberta Marques
- Laboratório de Ecologia de Parasitos e Vetores, Programa de Pós Graduação em Microbiologia e Parasitologia, Departamento de Microbiologia e Parasitologia, Instituto de Biologia, Universidade Federal de Pelotas, Pelotas, RS Brazil
| | - Rodrigo F. Krüger
- Laboratório de Ecologia de Parasitos e Vetores, Programa de Pós Graduação em Microbiologia e Parasitologia, Departamento de Microbiologia e Parasitologia, Instituto de Biologia, Universidade Federal de Pelotas, Pelotas, RS Brazil
| | | | - Larissa F. de Melo
- Laboratório de Ecologia de Parasitos e Vetores, Programa de Pós Graduação em Microbiologia e Parasitologia, Departamento de Microbiologia e Parasitologia, Instituto de Biologia, Universidade Federal de Pelotas, Pelotas, RS Brazil
| | - Natália Vicenzi
- Laboratório de Ecologia de Parasitos e Vetores, Programa de Pós Graduação em Microbiologia e Parasitologia, Departamento de Microbiologia e Parasitologia, Instituto de Biologia, Universidade Federal de Pelotas, Pelotas, RS Brazil
| | - Daniel Jiménez-García
- Centro de Agroecología y Ambiente, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla México
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Lehane A, Parise C, Evans C, Beati L, Nicholson WL, Eisen RJ. Reported County-Level Distribution of the American Dog Tick (Acari: Ixodidae) in the Contiguous United States. JOURNAL OF MEDICAL ENTOMOLOGY 2020; 57:131-155. [PMID: 31368492 PMCID: PMC8911316 DOI: 10.1093/jme/tjz119] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Indexed: 05/03/2023]
Abstract
In the United States, tick-borne diseases are increasing in incidence and cases are reported over an expanding geographical area. Avoiding tick bites is a key strategy in tick-borne disease prevention, and this requires current and accurate information on where humans are at risk for exposure to ticks. Based on a review of published literature and records in the U.S. National Tick Collection and National Ecological Observatory Network databases, we compiled an updated county-level map showing the reported distribution of the American dog tick, Dermacentor variabilis (Say). We show that this vector of the bacterial agents causing Rocky Mountain spotted fever and tularemia is widely distributed, with records derived from 45 states across the contiguous United States. However, within these states, county-level records of established tick populations are limited. Relative to the range of suitable habitat for this tick, our data imply that D. variabilis is currently underreported in the peer-reviewed literature, highlighting a need for improved surveillance and documentation of existing tick records.
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Affiliation(s)
- Aine Lehane
- Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 3156 Rampart Road, Fort Collins, CO 80521
| | - Christina Parise
- Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 3156 Rampart Road, Fort Collins, CO 80521
| | - Colleen Evans
- U.S. National Tick Collection, Institute for Coastal Plain Science, Georgia Southern University, 202 Georgia Avenue, Statesboro, GA 30460
| | - Lorenza Beati
- U.S. National Tick Collection, Institute for Coastal Plain Science, Georgia Southern University, 202 Georgia Avenue, Statesboro, GA 30460
| | - William L. Nicholson
- Rickettsial Zoonoses Branch, 1600 Clifton Road, NE, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333
| | - Rebecca J. Eisen
- Bacterial Diseases Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 3156 Rampart Road, Fort Collins, CO 80521
- Corresponding author,
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Estrada-Peña A, Nava S, Tarragona E, Bermúdez S, de la Fuente J, Domingos A, Labruna M, Mosqueda J, Merino O, Szabó M, Venzal JM, Guglielmone AA. Species occurrence of ticks in South America, and interactions with biotic and abiotic traits. Sci Data 2019; 6:299. [PMID: 31796749 PMCID: PMC6890768 DOI: 10.1038/s41597-019-0314-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 10/25/2019] [Indexed: 11/23/2022] Open
Abstract
The datasets of records of the distribution of ticks and their hosts are invaluable tools to understand the phylogenetic patterns of evolution of ticks and the abiotic traits to which they are associated. Such datasets require an exhaustive collection of bibliographical references. In most cases, it is necessary the confirmation of reliable identification of ticks, together with an update of the scientific names of the vertebrate hosts. These data are not easily available, because many records were published in the so-called “grey literature”. Herein, we introduced the Dataset of Ticks in South America, a repository that collates data on 4,764 records of ticks (4,124 geo-referenced) with a special reference to an extra 2,370 records of ticks on cattle, together with a set of abiotic traits, curated from satellite-derived information over the complete target region. The dataset includes details of the phylogenetic relationships of the species of hosts, providing researchers with both biotic and abiotic traits that drive the distribution and evolution of ticks in South America. Measurement(s) | climate • tick infestation • Host-Parasite Relationship • phylogenetic data | Technology Type(s) | satellite imaging • digital curation | Factor Type(s) | time • species of vertebrate host | Sample Characteristic - Organism | Ixodidae | Sample Characteristic - Environment | terrestrial environmental zone | Sample Characteristic - Location | South America • Neotropics |
Machine-accessible metadata file describing the reported data: 10.6084/m9.figshare.10108703
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Affiliation(s)
- Agustin Estrada-Peña
- Department of Animal Pathology, Faculty of Veterinary Medicine, Zaragoza, Spain.
| | | | | | - Sergio Bermúdez
- Instituto Conmemorativo Gorgas de Estudios de la Salud, Panama City, Panama
| | - José de la Fuente
- SaBio, Instituto de Investigación en Recursos Cinegéticos (IREC-CSIC-UCLM-JCCM), Ronda de Toledo s/n, 13005, Ciudad Real, Spain.,Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Ana Domingos
- Global Healyh and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisboa, Portugal
| | | | - Juan Mosqueda
- Universidad Autónoma de Querétaro, Querétaro, México
| | | | - Matias Szabó
- Universidade Federal de Überlandia, Überlandia, MG, Brazil
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Wang HH, Corson MS, Grant WE, Teel PD. Quantitative models of Rhipicephalus
(Boophilus
) ticks: historical review and synthesis. Ecosphere 2017. [DOI: 10.1002/ecs2.1942] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Hsiao-Hsuan Wang
- Department of Wildlife and Fisheries Sciences; Texas A&M University; College Station Texas 77843 USA
| | | | - William E. Grant
- Department of Wildlife and Fisheries Sciences; Texas A&M University; College Station Texas 77843 USA
| | - Pete D. Teel
- Department of Entomology; Texas A&M AgriLife Research; College Station Texas 77843 USA
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Picinin L, Toaldo I, Hoff R, Souza F, Leite M, Fonseca L, Diniz S, Silva M, Haddad J, Cerqueira M, Luiz M. Climate conditions associated with the occurrence of pyrethroid residues in bulk milk tank. ARQ BRAS MED VET ZOO 2016. [DOI: 10.1590/1678-4162-8880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT The present study attempted to identify climate conditions that are associated with the occurrence of pyrethroid residues using a multivariate principal component analysis (PCA). A total of 132 raw milk samples were collected from dairy farms in Minas Gerais State - Brazil and analyzed for seven analytes using gas chromatography with electron capture detection. Of the 132 milk samples, pyrethroid residues were identified in 14 (10.6%) milk samples, of which 12 (9.1%) and two (1.5%) milk samples had the identification of cypermethrin and deltamethrin, respectively. From those samples, nine (6.8%) milk samples were regarded as non-compliant for cypermethrin with this analyte concentration above the maximum residue limits set by Brazilian legislation. A PCA assessing pyrethroid residues in bulk tank milk demonstrated that the average temperature and the Temperature-Humidity Index were associated with pyrethroids residues in bulk milk tank, although the relative humidity was inversely correlated. Thus, the data analysis indicated that the pyrethrid residues associated with some climate conditions can predict the moments with higher risk of occurrence of pyrethroid residues in bulk tank milk.
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Affiliation(s)
- L.C.A. Picinin
- Universidade Federal de Santa Catarina, Brazil; Universidade do Estado de Santa Catarina, Brazil
| | - I.M. Toaldo
- Universidade Federal de Santa Catarina, Brazil
| | - R.B. Hoff
- Ministério da Agricultura Pecuária e Abastecimento, Brazil
| | - F.N. Souza
- Universidade Federal de Minas Gerais, Brazil
| | - M.O. Leite
- Universidade Federal de Minas Gerais, Brazil
| | | | - S.A. Diniz
- Universidade Federal de Minas Gerais, Brazil
| | - M.X. Silva
- Universidade Federal de Minas Gerais, Brazil
| | | | | | - M.T.B. Luiz
- Universidade Federal de Santa Catarina, Brazil
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James AM, Burdett C, McCool MJ, Fox A, Riggs P. The geographic distribution and ecological preferences of the American dog tick, Dermacentor variabilis (Say), in the U.S.A. MEDICAL AND VETERINARY ENTOMOLOGY 2015; 29:178-188. [PMID: 25684582 DOI: 10.1111/mve.12099] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 07/03/2014] [Accepted: 07/11/2014] [Indexed: 06/04/2023]
Abstract
Equine piroplasmosis (EP), caused by two parasitic organisms, Theileria equi and Babesia caballi, is a tick-borne disease of recent concern in horses in the U.S.A. Outbreaks of EP have been detected in Florida, Missouri, Kansas and Texas. In 2009, EP transmission in Texas occurred through the adults of two tick species, Amblyomma mixtum [formerly known as Amblyomma cajennense (Fabricius, 1787)] Koch (Ixodida: Ixodidae) and Dermacentor variabilis (Say) (Ixodida: Ixodidae), the American dog tick (ADT). In this study, we developed a continent-scale map for the distribution of the EP vector species D. variabilis, using a presence-only modelling approach to assess the habitat preferences of this tick. We used identification records from our tick geodatabase of locations in which the presence of the ADT had been noted. The potential distribution of the ADT in the U.S.A. was estimated from environmental factors using the maximum entropy approach based on localities in which there is a high probability of occurrence according to habitat suitability. Elevation and temperature were found to be biologically significant environmental variables influencing the presence of this tick species. Properly designed and constructed probability surfaces using maximum entropy offer one useful approach to the mapping of distribution ranges of tick species based on suitable habitat in the U.S.A.
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Affiliation(s)
- A M James
- U.S. Department of Agriculture, Animal and Plant Health Inspection Service, Veterinary Services, Fort Collins, CO, U.S.A
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Effect of deforestation and introduction of exotic grasses as livestock forage on the population dynamics of the cattle tick Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) in northern Argentina. Res Vet Sci 2013; 95:1046-54. [DOI: 10.1016/j.rvsc.2013.09.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 09/10/2013] [Accepted: 09/20/2013] [Indexed: 11/20/2022]
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Leta S, De Clercq EM, Madder M. High-resolution predictive mapping for Rhipicephalus appendiculatus (Acari: Ixodidae) in the Horn of Africa. EXPERIMENTAL & APPLIED ACAROLOGY 2013; 60:531-542. [PMID: 23413173 DOI: 10.1007/s10493-013-9670-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 02/01/2013] [Indexed: 06/01/2023]
Abstract
The brown ear tick Rhipicephalus appendiculatus, vector of East Coast fever (ECF) and related cattle diseases caused by Theileria parva has never been reported from the Horn of Africa. Habitat suitability for this tick species was predicted using Maxent modelling technique based on R. appendiculatus records in Sub-Saharan Africa. Two models were developed: the first is based on the tropical R. appendiculatus distribution and the one is based on the distribution records in the temperate region of Sub-Saharan Africa. The tropical model shows favourable habitat in much of the Ethiopian highlands. The whole Djibouti, the south eastern Ethiopian lowlands, majority of Somalia and Eritrea were found to be not suitable for the survival and development of this tick species. Highly suitable areas occur in areas which have moderate temperature and high precipitation. Introductions of R. appendiculatus into the Horn of Africa probably have been prevented by the natural barrier between the known R. appendiculatus distribution range in East Africa and the Horn of Africa. The effect of an introduction of R. appendiculatus and thereby ECF into the Horn of Africa could be catastrophic since the cattle in this area have no immunity against ECF, and mortality might be considerable in all age groups of cattle.
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Affiliation(s)
- Samson Leta
- Adami Tullu Agricultural Research Center, P.O. Box 35, Ziway, Ethiopia.
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Lempereur L, Geysen D, Madder M. Development and validation of a PCR-RFLP test to identify African Rhipicephalus (Boophilus) ticks. Acta Trop 2010; 114:55-8. [PMID: 20080073 DOI: 10.1016/j.actatropica.2010.01.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2009] [Revised: 01/08/2010] [Accepted: 01/09/2010] [Indexed: 11/16/2022]
Abstract
The cattle tick Rhipicephalus (Boophilus) microplus has recently invaded West Africa and caused anxiety amongst farmers in Ivory Coast, as livestock production was severely affected. The introduction of this tick species has remained unnoticed for several years, as all the members of this genus are very similar in appearance. To overcome the cumbersome morphological identification of the four closely related R. (Boophilus) spp. in the region, a PCR-RFLP test, based on a part of the second internal transcribed spacer ribosomal DNA (ITS2), was developed. The molecular tool was successfully validated with a large number of ticks recently collected from West Africa and that were identified both morphologically and genetically. The tool developed is simple, fast, reliable and reproducible; hence it can be routinely applied for species identification.
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Affiliation(s)
- Laetitia Lempereur
- Institute of Tropical Medicine, Department of Animal Health, Nationalestraat 155, B-2000 Antwerp, Belgium.
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Estrada-Peña A, Naranjo V, Acevedo-Whitehouse K, Mangold AJ, Kocan KM, de la Fuente J. Phylogeographic analysis reveals association of tick-borne pathogen, Anaplasma marginale, MSP1a sequences with ecological traits affecting tick vector performance. BMC Biol 2009; 7:57. [PMID: 19723295 PMCID: PMC2741432 DOI: 10.1186/1741-7007-7-57] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2009] [Accepted: 09/01/2009] [Indexed: 11/24/2022] Open
Abstract
Background The tick-borne pathogen Anaplasma marginale, which is endemic worldwide, is the type species of the genus Anaplasma (Rickettsiales: Anaplasmataceae). Rhipicephalus (Boophilus) microplus is the most important tick vector of A. marginale in tropical and subtropical regions of the world. Despite extensive characterization of the genetic diversity in A. marginale geographic strains using major surface protein sequences, little is known about the biogeography and evolution of A. marginale and other Anaplasma species. For A. marginale, MSP1a was shown to be involved in vector-pathogen and host-pathogen interactions and to have evolved under positive selection pressure. The MSP1a of A. marginale strains differs in molecular weight because of a variable number of tandem 23-31 amino acid repeats and has proven to be a stable marker of strain identity. While phylogenetic studies of MSP1a repeat sequences have shown evidence of A. marginale-tick co-evolution, these studies have not provided phylogeographic information on a global scale because of the high level of MSP1a genetic diversity among geographic strains. Results In this study we showed that the phylogeography of A. marginale MSP1a sequences is associated with world ecological regions (ecoregions) resulting in different evolutionary pressures and thence MSP1a sequences. The results demonstrated that the MSP1a first (R1) and last (RL) repeats and microsatellite sequences were associated with world ecoregion clusters with specific and different environmental envelopes. The evolution of R1 repeat sequences was found to be under positive selection. It is hypothesized that the driving environmental factors regulating tick populations could act on the selection of different A. marginale MSP1a sequence lineages, associated to each ecoregion. Conclusion The results reported herein provided the first evidence that the evolution of A. marginale was linked to ecological traits affecting tick vector performance. These results suggested that some A. marginale strains have evolved under conditions that support pathogen biological transmission by R. microplus, under different ecological traits which affect performance of R. microplus populations. The evolution of other A. marginale strains may be linked to transmission by other tick species or to mechanical transmission in regions where R. microplus is currently eradicated. The information derived from this study is fundamental toward understanding the evolution of other vector-borne pathogens.
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Eisen L. Climate change and tick-borne diseases: A research field in need of long-term empirical field studies. Int J Med Microbiol 2008. [DOI: 10.1016/j.ijmm.2007.10.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Modelling non-equilibrium distributions of invasive species: a tale of two modelling paradigms. Biol Invasions 2008. [DOI: 10.1007/s10530-008-9335-x] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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