Detection of tick-borne pathogens in roe deer (Capreolus capreolus), in questing ticks (Ixodes ricinus), and in ticks infesting roe deer in southern Germany

2013 ◽  
Vol 4 (4) ◽  
pp. 320-328 ◽  
Author(s):  
Evelyn Overzier ◽  
Kurt Pfister ◽  
Ingrid Herb ◽  
Monia Mahling ◽  
Georg Böck ◽  
...  
Keyword(s):  
Ixodes Ricinus ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Southern Germany ◽  
Questing Ticks

scholarly journals Field evidence that roe deer (Capreolus capreolus) are a natural host for Ehrlichia phagocytophila

2000 ◽  
Vol 124 (2) ◽  
pp. 315-323 ◽  
Author(s):  
M. P. ALBERDI ◽  
A. R. WALKER ◽  
K. A. URQUHART
Keyword(s):  
Ixodes Ricinus ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Chain Reaction ◽  
Serum Samples ◽  
Blood Samples ◽  
Ehrlichia Phagocytophila ◽  
The United Kingdom ◽  
Field Evidence ◽  
Polymerase Chain

Samples of blood, spleen and legs from 112 culled roe deer (Capreolus capreolus) were collected from nine sites widespread in the United Kingdom. The prevalence of infection with Ehrlichia phagocytophila was determined by serology and polymerase chain reaction. Means of 58% of 102 plasma or serum samples were seroreactive by IFA, 38% of 84 blood samples and 29% of 82 spleen samples were positive by PCR. Ticks on legs of 71 roe deer were Ixodes ricinus larvae, nymphs and adults and 83% of legs were infested. Numbers of ticks corresponded positively to the percentage of samples positive for E. phagocytophila by serology and PCR for different sampling sites. Ixodes ricinus nymphs collected from the vegetation at one site with infected deer were analysed for infection with E. phagocytophila by examination of Feulgen stained salivary glands. Of 135 nymphs 5% were infected. These results confirm that roe deer are commonly parasitized by both E. phagocytophila and its vector tick in such a way that it is likely to be an important natural mammalian reservoir of E. phagocytophila.

scholarly journals Borrelia burgdorferi Sensu Lato in Questing and Engorged Ticks from Different Habitat Types in Southern Germany

2021 ◽  
Vol 9 (6) ◽  
pp. 1266
Author(s):  
Cristian Răileanu ◽  
Cornelia Silaghi ◽  
Volker Fingerle ◽  
Gabriele Margos ◽  
Claudia Thiel ◽  
...  
Keyword(s):  
Borrelia Burgdorferi ◽  
Roe Deer ◽  
Habitat Type ◽  
Borrelia Burgdorferi Sensu Lato ◽  
Species Differentiation ◽  
Infection Rates ◽  
Habitat Types ◽  
Natural Habitats ◽  
Southern Germany ◽  
Questing Ticks

Borrelia burgdorferi sensu lato (s.l.) causes the most common tick-borne infection in Europe, with Germany being amongst the countries with the highest incidences in humans. This study aimed at (1) comparing infection rates of B. burgdorferi s.l. in questing Ixodes ricinus ticks from different habitat types in Southern Germany, (2) analysing genospecies distribution by habitat type, and (3) testing tissue and ticks from hosts for B. burgdorferi s.l. Questing ticks from urban, pasture, and natural habitats together with feeding ticks from cattle (pasture) and ticks and tissue samples from wild boars and roe deer (natural site) were tested by PCR and RFLP for species differentiation. B. burgdorferi s.l. was found in 29.8% questing adults and 15% nymphs. Prevalence was lower at the urban sites with occurrence of roe deer than where these were absent. Borrelia burgdorferi s.l. DNA was found in 4.8% ticks from roe deer, 6.3% from wild boar, and 7.8% from cattle. Six genospecies were identified in unfed ticks: Borrelia afzelii (48.6%), Borrelia burgdorferi sensu stricto (16%), Borrelia garinii (13.2%), Borrelia valaisiana (7.5%), Borrelia spielmanii (6.2%), and Borrelia bavariensis (0.9%). This study shows high infection levels and a great diversity of Borrelia in questing ticks. The presence of roe deer seems to reduce B. burgdorferi s.l. infection rates in tick populations.

Fivefold higher abundance of ticks (Acari: Ixodida) on the European roe deer (Capreolus capreolus L.) forest than field ecotypes

2021 ◽  
Author(s):  
Patrycja Opalińska ◽  
Anna Wierzbicka ◽  
Marek Asman ◽  
Grzegorz Rączka ◽  
Marcin K. Dyderski ◽  
...  
Keyword(s):  
Species Composition ◽  
Central Europe ◽  
Ixodes Ricinus ◽  
Roe Deer ◽  
Life Stage ◽  
Capreolus Capreolus ◽  
Body Parts ◽  
Deer Species ◽  
The Mean ◽  
Tick Load

Abstract The European roe deer (Capreolus capreolus) is the most common deer species in Europe. The species can be a reservoir of some tick-borne diseases (TBD) but it is primarily recognized for its contribution as an amplifier host. In Central Europe, two roe deer ecotypes are living in adjacent areas: field and forest. We investigated differences in tick load and species composition on these two ecotypes. We collected ticks from 160 (80 the forest ecotype and 80 the field ecotype) roe deer culled in Wielkopolska Region (West-Central Poland). The most common was Ixodes ricinus (n = 1610; 99%) followed by Ixodes hexagonus (n = 22; 1%). The dominant life stage of the ticks was female. Prevalence was higher for forest roe deer. Mean number of ticks found on the forest ecotype was almost fivefold higher than on the field ecotype (3.75±0.83 vs. 0.77±0.20 ticks). The mean probability of tick occurrence was threefold higher in the forest (0.915±0.050) than the field ecotype (0.279±0.125). 'The most infested body parts of roe deer from both ecotypes were the neck and the head.

scholarly journals Fivefold higher abundance of ticks (Acari: Ixodida) on the European roe deer (Capreolus capreolus L.) forest than field ecotypes

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Patrycja Opalińska ◽  
Anna Wierzbicka ◽  
Marek Asman ◽  
Grzegorz Rączka ◽  
Marcin K. Dyderski ◽  
...  
Keyword(s):  
Species Composition ◽  
Central Europe ◽  
Ixodes Ricinus ◽  
Roe Deer ◽  
Life Stage ◽  
Capreolus Capreolus ◽  
Body Parts ◽  
Deer Species ◽  
The Mean ◽  
Tick Load

AbstractThe European roe deer (Capreolus capreolus) is the most common deer species in Europe. The species can be a reservoir of some tick-borne diseases but it is primarily recognized for its contribution as an amplifier host. In Central Europe, two roe deer ecotypes are living in adjacent areas: field and forest. We investigated differences in tick load and species composition on these two ecotypes. We collected ticks from 160 (80 the forest ecotype and 80 the field ecotype) roe deer culled in Wielkopolska Region (West-Central Poland). The most common was Ixodes ricinus (n = 1610; 99%) followed by Ixodes hexagonus (n = 22; 1%). The dominant life stage of the ticks was female. Prevalence was higher for forest roe deer. Mean number of ticks found on the forest ecotype was almost fivefold higher than on the field ecotype (3.75 ± 0.83 vs. 0.77 ± 0.20 ticks). The mean probability of tick occurrence was threefold higher in the forest (0.915 ± 0.050) than the field ecotype (0.279 ± 0.125). The most infested body parts of roe deer from both ecotypes were the neck and the head.

Enamel Thickness Differs between Field and Forest European Roe Deer Capreolus capreolus

2020 ◽  
Vol 68 (1) ◽  
pp. 100
Author(s):  
Jan Demesko ◽  
Marta Kurek ◽  
Patrycja Podlaszczuk ◽  
Janusz Markowski
Keyword(s):  
Roe Deer ◽  
Capreolus Capreolus ◽  
Enamel Thickness

scholarly journals The modular organization of roe deer (Capreolus capreolus) body during ontogeny: the effects of sex and habitat

2018 ◽  
Vol 15 (1) ◽  
Author(s):  
Svetlana Milošević-Zlatanović ◽  
Tanja Vukov ◽  
Srđan Stamenković ◽  
Marija Jovanović ◽  
Nataša Tomašević Kolarov
Keyword(s):  
Roe Deer ◽  
Capreolus Capreolus ◽  
Modular Organization

scholarly journals Testicular Melatonin and Its Pathway in Roe Deer Bucks (Capreolus capreolus) during Pre- and Post-Rut Periods: Correlation with Testicular Involution

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1874
Author(s):  
Alberto Elmi ◽  
Nadia Govoni ◽  
Augusta Zannoni ◽  
Martina Bertocchi ◽  
Chiara Bernardini ◽  
...  
Keyword(s):  
Gene Expression ◽  
Correlation Analysis ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Reproductive Activity ◽  
Melatonin Receptors ◽  
Local Synthesis ◽  
Testicular Weight ◽  
And Function ◽  
Gene Expression Levels

Roe deer are seasonal breeders with a complete yearly testicular cycle. The peak in reproductive activity is recorded during summer, the rutting period, with the highest levels of androgens and testicular weight. Melatonin plays a pivotal role in seasonal breeders by stimulating the hypothalamus–pituitary–gonads axis and acting locally; in different species, its synthesis within testes has been reported. The aim of this study was to evaluate the physiological melatonin pattern within roe deer testes by comparing data obtained from animals sampled during pre- and post-rut periods. Melatonin was quantified in testicular parenchyma, along with the genetic expression of enzymes involved in its local synthesis (AANAT and ASMT) and function (UCP1). Melatonin receptors, MT1-2, were quantified both at protein and gene expression levels. Finally, to assess changes in reproductive hormonal profiles, testicular dehydroepiandrosterone (DHEA) was quantified and used for a correlation analysis. Melatonin and AANAT were detected in all samples, without significant differences between pre- and post-rut periods. Despite DHEA levels confirming testicular involution during the post-rut period, no correlations appeared between such involution and melatonin pathways. This study represents the first report regarding melatonin synthesis in roe deer testes, opening the way for future prospective studies in the physiology of this species.

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