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85 results for “tick data”
Data from: Molecular and niche modeling approaches to identify potential amplifying hosts for an emerging tick-borne pathogen, Rickettsia rickettsii subsp. californica, the causative agent of Pacific Coast tick fever
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Data from: The dataset of ticks in South America
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Data from: Tracking seasonal activity of the western blacklegged tick across California
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Data from: Climate differentially impacts ticks infected and uninfected with Borrelia burgdorferi
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Data from: Population structure, ancestral admixture, gene flow, and landscape association of blacklegged ticks during range expansion in the Midwestern U.S.
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Data from: Tick-borne disease risk in a forest food web
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Data from: Unraveling the biochemical aspects of the interaction between ticks and <em>Leishmania</em> using a tick cell line
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Data from: Inferring the feeding history of the castor bean tick, Ixodes ricinus from lipid and body measurements
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Data from: Range expansion and increasing Borrelia burgdorferi infection of the tick Ixodes scapularis (Acari: Ixodidae) in Iowa, 1990-2013
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Personality, space use, network, and tick infestation data from a field study of sleepy lizards, 2010 and 2014 - 2017
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Data from: Climatic stress decreases tick survival but increases rate of host-seeking behavior
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Data from: Whole genome sequencing reveals clade-specific genetic variation in blacklegged ticks
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Data from: Prevalence of and potential risk factors for multiple resistance to acaricides in <em>Rhipicephalus (Boophilus) microplus</em> ticks: A survey in the state of Rio Grande do Sul, Brazil
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Data from: Functional vertebrate group diversity, tick-borne pathogen ecology and genetic diversity
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Data from: But the clock, tick-tock: The preeminence of relaxed clock models in total-evidence dated phylogenetics
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Data from: Species interactions in occurrence data for a community of tick-transmitted pathogens
Interactions between species of ticks, their realised range of hosts, the pathogens they carry and transmit, as well as the geographical distribution of species in the Western Palearctic, have been obtained based on evidence published between 1970–2014. These relationships were linked to remotely-sensed features of temperature and vegetation and used to extract the network of interactions among the organisms. The resulting datasets were focussed on niche overlap among ticks and hosts, species interactions and the fraction of the environmental niche where tick-borne pathogens may circulate, as a result of interactions and environmental trait overlap. The presented datasets provide a valuable resource for researchers of tick-borne pathogens, as they conciliate the abiotic and biotic sides of their niche, allowing exploration of the importance of each species of vertebrate reservoir in the circulation of tick-transmitted pathogens at intervals of the environmental niche.
Data from: Geographic distribution of the invasive cattle tick Rhipicephalus microplus, a country-wide survey in Benin
The cattle tick Rhipicephalus microplus is currently invading the West African region, and little information is available on the spread of this exotic tick in this region. We set out a country-wide field survey to determine its current distribution in Benin. Ticks were collected on cattle from 106 farms selected by random sampling covering all regions of the country. Rhipicephalus annulatus was found on 70 % of all farms, R. decoloratus on 42 %, R. geigyi on 58 %, and R. microplus on 49 %. There is a clear geographic separation between the indigenous Rhipicephalus species and R. microplus. Rhipicephalus annulatus occurs mainly in the northern departments, but it was also observed in lower numbers in locations in the south. The presence of R. decoloratus is limited to the northern region, and in most locations, this tick makes up a small proportion of the collected ticks. The tick R. geigyi tends to be dominant, but occurs only in the four northern departments. The observations concerning R. microplus are entirely different, this species occurs in the southern and central region. The results of this survey confirm the invasive character and displacement properties of R. microplus, since in less than a decade it has colonized more than half of the country and has displaced indigenous ticks of the same genus in many of the sampled locations.
Data from: Abiotic and habitat drivers of tick vector abundance, diversity, phenology and human encounter risk in southern California
The distribution, abundance and seasonal activity of vector species, such as ticks and mosquitoes, are key determinants of vector-borne disease risk, and are strongly influenced by abiotic and habitat conditions. Despite the numerous species of tick vectors in the heavily populated North American West Coast, all but Ixodes pacificus, the primary vector of the Lyme disease spirochete, is poorly characterized with regard to seasonal activity patterns and fine scale drivers of distribution and abundance, particularly in heavily populated regions of southern California. This lack of knowledge inhibits both scientific understanding and public health efforts to minimize vector exposure and risk of pathogen transmission to humans. Here we address this gap by characterizing the abiotic and habitat drivers of the distribution, abundance, and diversity of the vector tick community using fine scale temporal surveys over two seasons (2014 and 2015) across coastal and inland regions of Santa Barbara County, CA. We also characterize patterns of seasonal activity of the more common vector species to understand seasonality in risk of vector exposure, and specifically focus on human encounter risk using standardized tick drags as our method of collection. Leveraging plot-level habitat and abiotic variables in partial least squares regression analysis, we find the seven different vector species collected in this study have divergent drivers of activity and abundance. For example, I. pacificus is strongly associated with dense forest habitats and cool and moist microclimates, while Dermacentor occidentalis and Dermacentor variabilis, competent vectors of Rocky Mountain Spotted Fever, were found to be more tolerant of higher average temperatures and more open habitats. These results suggest that I. pacificus may be expected to experience reductions in geographic distribution and seasonal activity under projected land cover and climate change in coastal southern California, while D. occidentalis may experience more limited effects. We discuss implications for changing tick-borne disease risk associated with pathogens transmitted by Ixodes as well as Dermacentor species ticks in the western US, and contrast these predictions with eastern North America.
Data from: Tick infestation of chicks in a seabird colony varies with local breeding synchrony, local nest density and habitat structure
Parasites are a major risk for group-living animals and seabirds are notoriously susceptible to ectoparasite infestations because they commonly nest in dense colonies. Ticks parasitize seabirds across all biogeographical regions and they can be particularly harmful to nestlings, but the ecological factors that affect their transmission to chicks are little studied and poorly understood. Here we show that abundance of tick larvae in blue-footed booby (Sula nebouxii) broods varies with local nest synchrony and density, and also with habitat structure: abundance increased with local breeding synchrony, was linearly and quadratically related to local nest density, and was highest toward the southern end of the study area which has suitable (boulder-rich) habitat for ticks. Also, with increasing chick age infestation first increased and then declined. The results of this study highlight how local physical and social environmental factors influence infestation of seabird nestlings by ticks.
Data from: Infection intensity and infectivity of the tick-borne pathogen Borrelia afzelii
The 'trade-off' hypothesis for virulence evolution assumes that between-host transmission rate is a positive and saturating function of pathogen exploitation and virulence, but there are as yet few tests of this assumption, in particular for vector-borne pathogens. Here, I show that the infectivity (probability of transmission) of the tick-borne bacterium Borrelia afzelii from two of its natural rodent hosts (bank vole and yellow-necked mouse) to its main tick vector increases asymptotically with increasing exploitation (measured as bacterial load in skin biopsies). Hence, this result provides support for one of the basic assumptions of the 'trade-off hypothesis'. Moreover, there was no difference in infectivity between bank voles and yellow-necked mice despite bacterial loads being on average an order of magnitude higher in bank voles, most likely because ticks took larger blood meals from mice. This shows that interspecific variation in host resistance does not necessarily translate into a difference in infectivity.
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Allen Brain Atlas
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
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