The role of seasonality in the dynamics of deer tick populations

Awerbuch-Friedlander, Tamara; Levins, Richard; Predescu, Mihaela

doi:10.1016/j.bulm.2004.08.003

Cited by 12 publications

(6 citation statements)

References 18 publications

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“…Thus, the densities of larval ticks at our study sites in August should correlate strongly with the density of deer at these same sites in the previous spring. The importance of seasonality in determining the spatial distribution and abundance of ticks is well supported by both mathematical theory (Awerbuch-Friedlander et al, 2005) and empirical examples (Manelli et al, 1994). Many factors may influence seasonal and annual changes in habitat use by white-tailed deer, including shifting foraging opportunities and habitat requirements (Cote et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

Fear of Parasites: Lone Star Ticks Increase Giving-up Densities in White-Tailed Deer

2010

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Nonconsumptive effects of predators on their prey are extensive and diverse, with significant consequences for community structure and ecosystem function. However, despite many theoretical similarities between predator-prey and host-parasite interactions, nonconsumptive effects of parasites on their hosts remain poorly understood. Further, such effects may be of consequence to human and wildlife health, when host-parasite interactions involve hematophagous arthropods that vector infectious diseases. We used giving-up density estimation techniques to measure the response of white-tailed deer(Odocoileus virginianus)to the risk of parasitism by lone star ticks(Amblyomma americanum), an important vector of several infectious diseases in the southeastern United States. We also deployed carnivore scent stations to estimate activity levels of potential deer predators, conducted deer dung count surveys to control for effects of deer abundance, and controlled for topographic aspect, a primary determinant of vegetative biomass and community composition. We found a significant, positive correlation between giving-up densities in deer and the densities ofA. americanum, but no effect of canid predators, deer abundance, or topographic aspect. Our results are consistent with the few other empirical examples that demonstrate nonconsumptive effects of parasites on their hosts. Considering that host-parasite interactions have enormous potential to influence the prevalence of vector-borne diseases that affect human health, incorporating indirect effects of parasites on their hosts into infectious disease ecology may be necessary to effectively mitigate disease risk.

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Section: Discussionmentioning

confidence: 99%

Fear of Parasites: Lone Star Ticks Increase Giving-up Densities in White-Tailed Deer

2010

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“…Climate effect on tick population growth was also investigated in ( Awerbuch-Friedlander et al., 2005 , Ghosh and Pugliese, 2004 , Randolph, 1999 ). In particular, a simple semi-discrete (ticks feeding is assumed to occur only during the summers of each year) model for tick population dynamics was presented in ( Ghosh & Pugliese, 2004 ).…”

Section: Stage Structure and Seasonality Of Tick Population Growthmentioning

confidence: 99%

Modeling Lyme disease transmission

Lou

2017

Infectious Disease Modelling

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Lyme disease, a typical tick-borne disease, imposes increasing global public health challenges. A growing body of theoretical models have been proposed to better understand various factors determining the disease risk, which not only enrich our understanding on the ecological cycle of disease transmission but also promote new theoretical developments on model formulation, analysis and simulation. In this paper, we provide a review about the models and results we have obtained recently on modeling and analyzing Lyme disease transmission, with the purpose to highlight various aspects in the ecological cycle of disease transmission to be incorporated, including the growth of ticks with different stages in the life cycle, the seasonality, host diversity, spatial disease pattern due to host short distance movement and bird migration, co-infection with other tick-borne pathogens, and climate change impact.

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“…Among many factors for the Lyme risk 17 are host diversity 21,13,14,20 , stage structure of ticks 6,19,18,15,14,12,2,26 and climate effects 18,15,14,7,1 . Modelling disease transmission incorporating multiple life stages, tick seasonality and host community composition is crucial to understanding the pathogen transmission.…”

Section: Introductionmentioning

confidence: 99%

Lyme Pathogen Transmission in Tick Populations With Multiple Host Species

Lou¹,

Wu²,

Wu³

2013

Biomat 2012

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The vectors of Lyme disease can feed on a wide range of host species with variable reservoir competence, and the transmission dynamics of Lyme pathogen is also influenced by seasonal temperature. Here we summarize some recent results based on a stage-structured time-periodic deterministic model integrating seasonal tick development and activity, multiple host species and complex transmission routes between ticks and hosts. Of particular focus is on qualitative conditions for successful tick invasion and disease persistence, numerical simulations on the impact of climate warming on the pathogen transmission dynamics, and analysis how host diversity will dilute or amplify the Lyme disease risk to public health.

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The role of seasonality in the dynamics of deer tick populations

Cited by 12 publications

References 18 publications

Fear of Parasites: Lone Star Ticks Increase Giving-up Densities in White-Tailed Deer

Fear of Parasites: Lone Star Ticks Increase Giving-up Densities in White-Tailed Deer

Modeling Lyme disease transmission

Lyme Pathogen Transmission in Tick Populations With Multiple Host Species

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