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Leszek Rychlik - One of the best experts on this subject based on the ideXlab platform.
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Additional file 1: Table S1. of Evaluation of the physiological activity of venom from the Eurasian water shrew Neomys fodiens
2017Co-Authors: Krzysztof Kowalski, Paweł Marciniak, Grzegorz Rosiński, Leszek RychlikAbstract:Cardiotropic effects of compounds from Neomys fodiens venom and Sorex araneus saliva on the Tenebrio molitor heartbeat frequency (* results are presented as percentage change in the heartbeat frequency ± SEM; n - number of replicates, W - Wilcoxon test value, p’ - p-value after Bonferroni correction). (DOCX 19 kb
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Acta Theriologica 39 (3): 329-332,1994. PL ISSN 0001-7051 FRAGMENTA THERIOLOGICA Aggressiveness of a Neomys fodiens parous female towards conspecific and N. anomalus intruders
2016Co-Authors: Natalia L Krushinska, Leszek Rychlik, Krushinska N. LAbstract:female towards conspecific and N. anomalus intruders. Acta theriol. 39: 329-332. Reactions of a Neomys fodiens (Pennant, 1771) parous female [FP] to 4 conspecific and 3 N. anomalus Cabrera, 1907 intruders were studied quantitatively in enclosure (135 x 135 cm) experiments. Total time of observations was 30 hr. FP initiated 5.6 intraspecific conflicts per 1 hr (1.95/hr of these were pouncings and fightings) with adult males, 0.8 conflicts/hr with a juvenile female, and 4.7 conflicts/hr with a N. ano malus adult male. Reactions of N. fodiens parous female were several times more aggressive than interactions between non-breeding ‘residents ’ and ‘immigrants ’ of both water shrew species tested under the same conditions in earlier studies
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Trypanosoma (Megatrypanum) ornata sp. n., a Parasite of the Eurasian Water Shrew
2016Co-Authors: Grzegorz Karbowiak, Irena Wita, Leszek RychlikAbstract:Summary. Infection with the new trypanosome species Trypanosoma ornata sp. n. was detected in water shrews Neomys fodiens examined for presence of blood parasites in September 2003 and 2004 in Białowieża Forest (eastern Poland). The prevalence of infection was about 36.3%. The trypanosomes occurred as trypomastigote forms only, the epimastigote, dividing forms or other developmental stages were not observed. The morphological features of the species (big body size, small kinetoplast located close to the cell margin, the presence of vermiform posterior end, the surface of the cell markedly striated with longitudinal ‘myonemes”, short free flagellum) support its affiliation to Megatrypanum subgenus. The detail morphometric characterization is given. Key words: Neomys fodiens; Trypanosoma ornata; Białowieża Forest żywa pagina: G. Karbowiak et al. Trypanosoma ornata sp. n., a Parasite of the Eurasian Water Shrew Neomys fodiens
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differences in swimming and diving abilities between two sympatric species of water shrews Neomys anomalus and Neomys fodiens soricidae
Journal of Ethology, 2009Co-Authors: Leszek Rychlik, Helena MendessoaresAbstract:Swimming and diving abilities of two syntopic species of water shrews, Neomys anomalus and Neomys fodiens, were tested in aquaria using video recordings taken from three views (lateral distant, lateral close and dorsal). The frequency and total duration of diving, as well as the mean duration of diving and floating bouts, were significantly higher in N. fodiens than in N. anomalus. Frequency of paddling during surface swimming was lower in N. fodiens than in N. anomalus. N. fodiens dived mainly for long distances at the bottom of the aquarium and performed a wider range of dive profiles than N. anomalus, which preferred rather short and shallow dives. The two species differed also significantly in their fineness ratios (describing how streamlined their bodies are) when diving. When swimming, N. fodiens had a relatively wider body and performed narrower movements with its tail than N. anomalus. These results show quantitatively and qualitatively for the first time that N. fodiens is more proficient at swimming and diving than N. anomalus. The results also help to explain the inter-specific differences in efficiency of underwater foraging, and support the idea of segregation of ecological niches of these species based on their different foraging modes (diving vs. wading).
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response to environmental factors and competition skull mandible and tooth shapes in polish water shrews Neomys soricidae mammalia
Journal of Zoological Systematics and Evolutionary Research, 2006Co-Authors: Leszek Rychlik, G Ramalhinho, P D PollyAbstract:Environmental factors and competition in closely related sympatric species may result in character displacement or phenotypic convergence. We studied the effects of sympatry on size and shape of the skulls, mandibles and molars in two species of water shrew, Neomys anomalus and Neomys fodiens. We studied populations from six localities in Poland, three where the species are sympatric (Pomorze, Bialowieza, and Bieszczady Mts) and three where only N. fodiens is found. We studied shape and size using geometrical landmarks. The three morphological structures that we studied are expected to respond differently to environment and competition, because they are controlled by different numbers of gene loci, have different developmental patterns and different functional roles. We found strong evidence that shape in all three structures was influenced by local environment and that both species responded to geoclimatic factors in the same way. Indirect evidence suggests that the parallel response of the two species is likely to be ecophenotypic in the case of skulls and mandibles but selective in molars. We found no evidence for character displacement in either size or shape, although significant differences were found between the two species as a whole, and within species between localities. Not only was there any evidence for displacement but also the species were actually more similar when they occurred in sympatry, probably because of the similar ecophenotypic responses to their shared environment. Resume La respuesta morfologica a la competencia y a factores ambientales comunes en dos especies simpatricas y estrechamente emparentadas puede dar lugar a un desplazamiento de caracteres o a una convergencia fenotipica. Se estudiaron los efectos de la asociacion simpatrica en la forma y tamano del craneo, mandibula y molares en dos especies de musganos Neomys anomalus y N. fodiens. Se examinaron seis localidades en Polonia, tres de ellas habitadas por ambas especies, (Pomorze, Bialowieza, y las montanas de Bieszczady), y tres habitadas exclusivamente por N. fodiens. Se caracterizo la forma y el tamano de cada uno de los tres elementos oseos usando marcas geometricas. Estas tres estructuras, que son controladas por un numero distinto de genes, presentan distintos patrones de desarrollo y funciones. Cada una es, pues, susceptible a distintas influencias ambientales. No se encontraron evidencias de desplazamiento de caracteres ni en tamano ni en forma, aunque se observaron diferencias significativas entre ambas especies en general, y dentro de cada especie entre las distintas localidades. Se encontro una clara evidencia de que las tres formas tipo estaban influenciadas por las diferencias ambientales entre las distintas localidades y de que los fenotipos de ambas especies respondieron del mismo modo a dichas diferencias. La causa de la respuesta ambiental es probable que sea ecofenotipica en el caso de craneos y mandibulas, pero genetica en molares. La respuesta ambiental parece ser la responsable del aumento en la similaridad fenotipica entre poblaciones simpatricas de dos especies. Indicios indirectos sugieren que los fenotipos del craneo, mandibula y molares de las dos especies estan especializados para explotar recursos ligeramente diferentes.
Richard Yanagihara - One of the best experts on this subject based on the ideXlab platform.
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co circulation of soricid and talpid borne hantaviruses in poland
Infection Genetics and Evolution, 2014Co-Authors: Janusz Hejduk, Hae Ji Kang, Janusz Markowski, Marcin Markowski, Pawel P Liberski, Beata Sikorska, Malgorzata Polatynska, Richard YanagiharaAbstract:Abstract Previously, we reported the discovery of a genetically distinct hantavirus, designated Boginia virus (BOGV), in the Eurasian water shrew (Neomys fodiens), as well as the detection of Seewis virus (SWSV) in the Eurasian common shrew (Sorex araneus), in central Poland. In this expanded study of 133 shrews and 69 moles captured during 2010–2013 in central and southeastern Poland, we demonstrate the co-circulation of BOGV in the Eurasian water shrew and SWSV in the Eurasian common shrew, Eurasian pygmy shrew (Sorex minutus) and Mediterranean water shrew (Neomys anomalus). In addition, we found high prevalence of Nova virus (NVAV) infection in the European mole (Talpa europaea), with evidence of NVAV RNA in heart, lung, liver, kidney, spleen and intestine. The nucleotide and amino acid sequence variation of the L segment among the SWSV strains was 0–18.8% and 0–5.4%, respectively. And for the 38 NVAV strains from European moles captured in Huta Dlutowska, the L-segment genetic similarity ranged from 94.1%–100% at the nucleotide level and 96.3%–100% at the amino acid level. Phylogenetic analyses showed geographic-specific lineages of SWSV and NVAV in Poland, not unlike that of rodent-borne hantaviruses, suggesting long-standing host-specific adaptation. The co-circulation and distribution of BOGV, SWSV and NVAV in Poland parallels findings of multiple hantavirus species co-existing in their respective rodent reservoir species elsewhere in Europe. Also, the detection of SWSV in three syntopic shrew species resembles spill over events observed among some rodent-borne hantaviruses.
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the Eurasian water shrew (Neomys fodiens) in
2014Co-Authors: Janusz Markowski, Hae Ji Kang, Janusz Hejduk, Pawel P Liberski, Beata Sikorska, Richard YanagiharaAbstract:Background: Guided by decades-old reports of hantaviral antigens in the Eurasian common shrew (Sorex araneus) and the Eurasian water shrew (Neomys fodiens) in European Russia, we employed RT-PCR to analyze lung tissues of soricine shrews, captured in Boginia, Huta Dłutowska and Kurowice in central Poland during September 2010, 2011 and 2012. Findings: In addition to Seewis virus (SWSV), which had been previously found in Eurasian common shrews elsewhere in Europe, a genetically distinct hantavirus, designated Boginia virus (BOGV), was detected in Eurasian water shrews captured in each of the three villages. Phylogenetic analysis, using maximum likelihood and Bayesian methods, showed that BOGV formed a separate lineage distantly related to SWSV. Conclusions: Although the pathogenic potential of BOGV and other recently identified shrew-borne hantaviruses is still unknown, clinicians should be vigilant for unusual febrile diseases and clinical syndromes occurring among individuals reporting exposures to shrews
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boginia virus a newfound hantavirus harbored by the eurasian water shrew Neomys fodiens in poland
Virology Journal, 2013Co-Authors: Janusz Markowski, Hae Ji Kang, Janusz Hejduk, Pawel P Liberski, Beata Sikorska, Richard YanagiharaAbstract:Background Guided by decades-old reports of hantaviral antigens in the Eurasian common shrew (Sorex araneus) and the Eurasian water shrew (Neomys fodiens) in European Russia, we employed RT-PCR to analyze lung tissues of soricine shrews, captured in Boginia, Huta Dlutowska and Kurowice in central Poland during September 2010, 2011 and 2012.
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seewis virus a genetically distinct hantavirus in the eurasian common shrew sorex araneus
Virology Journal, 2007Co-Authors: Jin-won Song, Satoru Arai, Shannon N. Bennett, M Puorger, Monika Hilbe, Richard YanagiharaAbstract:More than 20 years ago, hantaviral antigens were reported in tissues of the Eurasian common shrew (Sorex araneus), Eurasian water shrew (Neomys fodiens) and common mole (Talpa europea), suggesting that insectivores, or soricomorphs, might serve as reservoirs of unique hantaviruses. Using RT-PCR, sequences of a genetically distinct hantavirus, designated Seewis virus (SWSV), were amplified from lung tissue of a Eurasian common shrew, captured in October 2006 in Graubunden, Switzerland. Pair-wise analysis of the full-length S and partial M and L segments of SWSV indicated approximately 55%–72% similarity with hantaviruses harbored by Murinae, Arvicolinae, Neotominae and Sigmodontinae rodents. Phylogenetically, SWSV grouped with other recently identified shrew-borne hantaviruses. Intensified efforts are underway to clarify the genetic diversity of SWSV throughout the geographic range of the Eurasian common shrew, as well as to determine its relevance to human health.
Vasyl V. Tkach - One of the best experts on this subject based on the ideXlab platform.
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Description and Phylogenetic Relationships of Pojmanskatrema balcanica n. gen., n. sp. (Digenea: Dicrocoeliidae) from the Eurasian Water Shrew Neomys fodiens (Mammalia: Soricidae) in Bulgaria.
Acta parasitologica, 2019Co-Authors: Joanna Hildebrand, Vasyl V. TkachAbstract:We describe a new dicrocoeliid collected from the Eurasian water shrew Neomys fodiens in Bulgaria based on the combination of morphological characteristics and molecular data. Pojmanskatrema balcanica n. sp., n. gen. is distinguished from all other species of family Dicrocoeliidae Looss, 1900 in having a postovarian vitellarium situated in the posterior half of the body, postacetabular, nearly tandem, lobed testes, and relatively short body. Molecular phylogenetic analysis based on 28S rDNA sequences of the new species and previously sequenced dicrocoeliid taxa has demonstrated close relationship of Pojmanskatrema n. gen. with the genus Eurytrema. Considering the non-monophyletic nature of previously recognized dicrocoeliid sub-families we support the recently proposed dissolution of the sub-families within this family.
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correction to description and phylogenetic relationships of pojmanskatrema balcanica n gen n sp digenea dicrocoeliidae from the eurasian water shrew Neomys fodiens mammalia soricidae in bulgaria
Acta Parasitologica, 2019Co-Authors: Joanna Hildebrand, Vasyl V. TkachAbstract:We describe a new dicrocoeliid collected from the Eurasian water shrew Neomys fodiens in Bulgaria based on the combination of morphological characteristics and molecular data. Pojmanskatrema balcanica n. sp., n. gen. is distinguished from all other species of family Dicrocoeliidae Looss, 1900 in having a postovarian vitellarium situated in the posterior half of the body, postacetabular, nearly tandem, lobed testes, and relatively short body. Molecular phylogenetic analysis based on 28S rDNA sequences of the new species and previously sequenced dicrocoeliid taxa has demonstrated close relationship of Pojmanskatrema n. gen. with the genus Eurytrema. Considering the non-monophyletic nature of previously recognized dicrocoeliid sub-families we support the recently proposed dissolution of the sub-families within this family.
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from water shrews Neomys fodiens Pennant
2015Co-Authors: Gergana P Vasileva, Vasyl V. Tkach, T GenovAbstract:Two new hymenolepidid species, Coronacanthus magnihamatus sp. nov. and Triodontolepis boyanensis sp. nov. are described from the European water shrew, Neomys fodiens, in Bulgaria. The most important differentiating features of C. magnihama-tus are the length of the rostellar hooks (2628 µm, mean 27 µm) and the thick-walled uterus, which does not form capsules in gravid proglottids. T. boyanensis is distinguished from other members in the genus by the number (16) and size (4748 µm, mean 48 µm) of the rostellar hooks, the non-capsulate gravid uterus, containing relatively large number of eggs (3570, mean 49) and the embryophore, possessing polar filaments. The types of uterine development in hymenolepidids of Neomys spp. are discussed
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soricinia genovi n sp from Neomys fodiens in bulgaria with redescription of soricinia globosa baer 1931 cyclophyllidea hymenolepididae
Parasitology Research, 2015Co-Authors: Rasa Binkienė, Svetlana A Kornienko, Vasyl V. TkachAbstract:Examination of specimens collected from water shrews Neomys fodiens in the Rhodope Mountains, Bulgaria, revealed a new species of Soricinia. Soricinia genovi n. sp., is described and the syntype of Soricinia globosa (the only other Soricinia species known from Neomys) is redescribed. The new species differs from S. globosa in the number of proglottids, relative length of the cirrus-sac, number of eggs in gravid proglottids, absence of vaginal sphincter and other characters. Among Soricinia, parasitic in shrews of the genus Sorex, the new species is most similar to Soricinia quarta. Soricinia genovi can be distinguished from S. quarta by the length of the cirrus-sac, larger testes and ovary, position of vitellarium and armament of cirrus. Comparison of nuclear ribosomal 28S DNA sequences and mitochondrial nad1 sequences clearly distinguishes S. genovi sp. n. from S. quarta, Soricinia bargusinica and Soricinia infirma. The levels of interspecific sequence divergence among Soricinia species exceed those reported for some other hymenolepidids of mammals. Phylogenetic analysis places S. quarta and S. genovi sp. n. as the closest taxa which is in agreement with morphological evidence. Our data suggest that the specimens of Soricinia from the Altai Mountains that were morphologically closest to S. infirma represent a new species. Pairwise sequence comparisons and phylogenetic analysis also indicate that “S. infirma” group may constitute a genus separate from the remaining Soricinia.
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two new hymenolepidid species cestoda hymenolepididae from water shrews Neomys fodiens pennant insectivora soricidae in bulgaria
Acta Parasitologica, 2005Co-Authors: Gergana P Vasileva, Vasyl V. Tkach, T GenovAbstract:Two new hymenolepidid species, Coronacanthus magnihamatus sp. nov. and Triodontolepis boyanensis sp. nov. are described from the European water shrew, Neomys fodiens, in Bulgaria. The most important differentiating features of C. magnihamatus are the length of the rostellar hooks (26–28 µm, mean 27 µm) and the thick-walled uterus, which does not form capsules in gravid proglottids. T. boyanensis is distinguished from other members in the genus by the number (16) and size (47–48 µm, mean 48 µm) of the rostellar hooks, the non-capsulate gravid uterus, containing relatively large number of eggs (35–70, mean 49) and the embryophore, possessing polar filaments. The types of uterine development in hymenolepidids of Neomys spp. are discussed.
Noblet Jean-françois - One of the best experts on this subject based on the ideXlab platform.
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Présence de la musaraigne de Miller Neomys anomalus Cabrera 1907 (Soricomorpha, Soricidae) dans l'isle Crémieu (Isère, France)
'PERSEE Program', 2012Co-Authors: Brunet-lecomte Patrick, Noblet Jean-françoisAbstract:Presence of Miller's water shrew Neomys anomalus Cabrera, 1907 (Soricomorpha, Soricidae) in Isle Crémieu (Isère, France). - This note reports and comments on the presence of Miller's water shrew Neomys anomalus Cabrera, 1907 in Isle Crémieu (Isère, France).Cette note mentionne et commente la présence de la musaraigne de Miller Neomys anomalus Cabrera, 1907 dans l'Isle Crémieu (Isère, France).Brunet-Lecomte Patrick, Noblet Jean-françois. Présence de la musaraigne de Miller Neomys anomalus Cabrera 1907 (Soricomorpha, Soricidae) dans l'isle Crémieu (Isère, France). In: Bulletin mensuel de la Société linnéenne de Lyon, 81ᵉ année, n°5-6, Mai-juin 2012. pp. 129-131
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Présence de la musaraigne de Miller Neomys anomalus Cabrera, 1907 (Soricomorpha, Soricidae) dans l'Isle Crémieu (Isère, France).
HAL CCSD, 2012Co-Authors: Brunet-lecomte Patrick, Noblet Jean-françoisAbstract:3 pagesCette note mentionne et commente la présence de la musaraigne de Miller Neomys anomalus Cabrera, 1907 dans l'Isle Crémieu (Isère, France)
Yunxiang Zhang - One of the best experts on this subject based on the ideXlab platform.
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distribution of several insectivora and the drying trend since the pleistocene in north china
Quaternary International, 2013Co-Authors: Yunxiang Zhang, Yongxiang Li, Ji LiAbstract:Abstract This paper describes the changes of distribution in geography and geohistory of five genera of fossil insectivora of the Shanyangzhai fauna in China, and compares these with their modern geographical and ecological distribution. The comparison showed that since the Pleistocene, the diffusion of the common hedgehog Erinaceus, the migration of the shrew Sorex, the water shrew Neomys, and the genera Crocidura and Scaptochirus, all indicate displacement of warm-dry environments in north China.
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new Neomys fossils soricidae insectivora from the middle pleistocene of china
Quaternary International, 2013Co-Authors: Yongxiang Li, Yunxiang ZhangAbstract:Three fossil Neomys specimens from the middle Pleistocene Shanyangzhai cave sediments of Qinhuangdao city, Hebei Province, China were assigned to the fossil species of Water Shrew, Neomys bohlini. The specimens show some characteristics, such as large size, condylar joint separation, and ascending ramus tilt, which are obviously different from Crocidura and Sorex. Remains of fossil Neomys are very rare. This is the first report of the species from the Zhoukoudian since 1936.
