scholarly journals Spatiotemporal dynamics of Puumala hantavirus associated with its rodent host,Myodes glareolus

2015 ◽  
Vol 8 (6) ◽  
pp. 545-559 ◽  
Author(s):  
Vanessa Weber de Melo ◽  
Hanan Sheikh Ali ◽  
Jona Freise ◽  
Denise Kühnert ◽  
Sandra Essbauer ◽  
...  
Keyword(s):  
Spatiotemporal Dynamics ◽  
Myodes Glareolus ◽  
Rodent Host

The occurrence of Borrelia burgdorferi sensu lato in certain ectoparasites (Mesostigmata, Siphonaptera) of Apodemus flavicollis and Myodes glareolus in chosen localities in the Czech Republic

2013 ◽  
Vol 58 (3) ◽  
Author(s):  
Jakub Netušil ◽  
Alena Žákovská ◽  
Karel Vostal ◽  
Adam Norek ◽  
Michal Stanko
Keyword(s):  
Czech Republic ◽  
Borrelia Burgdorferi ◽  
Myodes Glareolus ◽  
Borrelia Burgdorferi Sensu Lato ◽  
Apodemus Flavicollis ◽  
Rodent Host ◽  
The Czech Republic ◽  
Pcr Method ◽  
Yellow Necked Mouse

AbstractTicks represent the primary vectors of several serious diseases, including the Lyme disease caused by Borrelia burgdorferi sensu lato (Bbsl). In this study two dominant ectoparasitic groups of arthropods (Mesostigmata, Siphonaptera) were investigated for the presence of borrelian DNA in order to determine their potential role of vectors (or carriers) of this bacterium. All individuals (235) were collected from wild-living rodents obtained in three localities in the Czech Republic (Bažantula, Baba and Křižovice). The majority of parasites were members of the families Parasitidae and Dermanyssidae (Mesostigmata) and families Hystrichopsyllidae and Ceratophyllidae (Siphonaptera). The rodent host species was almost exclusively the yellow-necked mouse (Apodemus flavicollis). Bbsl was detected by the PCR method in the following ectoparasite species: Euryparasitus emarginatus (1), Eulaelaps stabularis (1), Haemogamassus nidi (1), Laelaps agilis (5), Myonyssus gigas (1) (Mesostigmata) and Ctenophthalmus agyrtes (1), C. solutus (3) (Siphonaptera).

scholarly journals Borrelia afzelii alters reproductive success in a rodent host

2018 ◽  
Vol 285 (1884) ◽  
pp. 20181056 ◽  
Author(s):  
Claire Cayol ◽  
Anna Giermek ◽  
Andrea Gomez-Chamorro ◽  
Jukka Hytönen ◽  
Eva Riikka Kallio ◽  
...  
Keyword(s):  
Reproductive Success ◽  
Host Population ◽  
Natural Host ◽  
Myodes Glareolus ◽  
Offspring Size ◽  
Rodent Host ◽  
Mating Partner ◽  
Borrelia Afzelii ◽  
Bank Voles ◽  
The Impact

The impact of a pathogen on the fitness and behaviour of its natural host depends upon the host–parasite relationship in a given set of environmental conditions. Here, we experimentally investigated the effects of Borrelia afzelii, one of the aetiological agents of Lyme disease in humans, on the fitness of its natural rodent host, the bank vole ( Myodes glareolus ), in semi-natural conditions with two contrasting host population densities. Our results show that B. afzelii can modify the reproductive success and spacing behaviour of its rodent host, whereas host survival was not affected. Infection impaired the breeding probability of large bank voles. Reproduction was hastened in infected females without alteration of the offspring size at birth. At low density, infected males produced fewer offspring, fertilized fewer females and had lower mobility than uninfected individuals. Meanwhile, the infection did not affect the proportion of offspring produced or the proportion of mating partner in female bank voles. Our study is the first to show that B. afzelii infection alters the reproductive success of the natural host. The effects observed could reflect the sickness behaviour due to the infection or they could be a consequence of a manipulation of the host behaviour by the bacteria.

scholarly journals Generalist Eimeria species in rodents: multilocus analyses indicate inadequate resolution of established markers

2019 ◽  
Author(s):  
Víctor Hugo Jarquín-Díaz ◽  
Alice Balard ◽  
Anna Mácová ◽  
Jenny Jost ◽  
Tabea Roth von Szepesbéla ◽  
...  
Keyword(s):  
Host Range ◽  
Host Species ◽  
Eimeria Species ◽  
Myodes Glareolus ◽  
House Mice ◽  
Rodent Host ◽  
High Resolution Data ◽  
Open Questions ◽  
Intracellular Parasites ◽  
Host Parasite

AbstractIntracellular parasites of the genus Eimeria are described as tissue/host specific. Phylogenetic classification of rodent Eimeria suggested that some species have a broader host range than previously assumed. We explore if Eimeria spp. infecting house mice are misclassified by the most widely used molecular markers due to a lack of resolution, or if, instead, these parasite species are indeed infecting multiple host species.With the commonly used markers (18S/COI), we recovered monophyletic clades of E. falciformis and E. vermiformis from Mus that included E. apionodes identified in other rodent host species (Apodemus spp., Myodes glareolus, and Microtus arvalis). A lack of internal resolution in these clades could suggest the existence of a species complex with a wide host range infecting murid and cricetid rodents. We question, however, the power of COI and 18S markers to provide adequate resolution for assessing host specificity. In addition to the rarely used marker ORF470 from the apicoplast genome, we present multilocus genotyping as an alternative approach. Phylogenetic analysis of 35 nuclear markers differentiated E. falciformis from house mice from isolates from Apodemus hosts. Isolates of E. vermiformis from Mus are still found in clusters interleaved with non-Mus isolates, even with this high resolution data.In conclusion, we show that species-level resolution should not be assumed for COI and 18S markers in Coccidia. Host-parasite co-speciation at shallow phylogenetic nodes, as well as contemporary coccidian host ranges more generally, are still open questions that need to be addressed using novel genetic markers with higher resolution.

ASSESSMENT OF THE SPATIOTEMPORAL DYNAMICS OF THE MACROPHYTE THICKET ECOSYSTEMS IN THE NEVA BAY AND THE ADJACENT WATERS OF THE EASTERN GULF OF FINLAND

2017 ◽  
Author(s):  
Ekaterina Maksimova ◽  
Ekaterina Maksimova ◽  
Vladimir Zhigulsky ◽  
Vladimir Zhigulsky ◽  
Vladimir Shuisky ◽  
...  
Keyword(s):  
Aquatic Vegetation ◽  
Temporal Dynamics ◽  
Negative Impact ◽  
Spatiotemporal Dynamics ◽  
Gulf Of Finland ◽  
Active Growth ◽  
Nesting Sites ◽  
Significant Negative Impact ◽  
And Migration ◽  
Neva Bay

The macrophyte thicket ecosystems of higher aquatic vegetation in the Neva Bay (NB) and Eastern Gulf of Finland (EGoF) perform many important roles, including acting as the habitats, nesting sites and migration sites for aquatic and semi-aquatic birds, creating the specific conditions necessary for the spawning and growth of many species of fish, and taking part in the self-purification of the aquatic ecosystems. Many anthropogenic disturbances, hydraulic works in particular, have a significant negative impact on these macrophyte thicket ecosystems. In recent years, the active growth of a new type of macrophyte thicket has been observed in the NB. This is due to the aftereffects of the construction of the Saint Petersburg Flood Prevention Facility Complex (FPFC). It is quite likely that the total macrophyte thicket area in these waters is currently increasing. In the future, it will be necessary to assess the environmental impacts of the hydraulic works on the macrophyte thicket of the NB and EGoF, taking into account the background processes of the spatiotemporal dynamics of the reed beds in the waters in question. To do this, it will be necessary to carry out a comprehensive study of these ecosystems and identify patterns in their spatial and temporal dynamics. The program of the study has been developed and is currently being implemented by Eco-Express-Service, a St. Petersburg eco-design company.

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