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Journal articles on the topic 'Ridibundus'

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Author: Grafiati

Published: 30 May 2022

Last updated: 31 May 2022

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1

Kolenda, Krzysztof, Agnieszka Pietras-Lebioda, Sebastian Hofman, Maria Ogielska, and Maciej Pabijan. "Preliminary genetic data suggest the occurrence of the Balkan water frog, Pelophylax kurtmuelleri, in southwestern Poland." Amphibia-Reptilia 38, no. 2 (2017): 187–96. http://dx.doi.org/10.1163/15685381-00003103.

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Recent molecular studies have detected the occurrence of exotic water frog species (Pelophylaxsp.) in central and western European populations. Here, we report genetic evidence for the occurrence of the Balkan water frog,Pelophylax kurtmuelleri, in southwestern Poland. We found a high frequency of an allele of serum albumin intron-1 and a mitochondrial cytochromebhaplotype specific for this southern taxon in frogs from the Barycz river drainage system. We interpret this finding as evidence of admixture betweenP. kurtmuelleriand the localridibundus-esculentuswater frog population. The origin of the exoticP. kurtmuellerimitochondrial and nuclear alleles in southwestern Poland could be due to (i) hybridization after a human-mediated introduction ofP. kurtmuelleri, (ii) the persistence of ancestral polymorphism in central EuropeanP. ridibundus, or (iii) hybridization betweenP. kurtmuelleriandP. ridibundusin the Balkans followed by the northward expansion of admixedP. ridibundus. Identical mtDNA haplotypes found in southwestern Poland and localities on the borders between Greece, Albania and Macedonia suggest that this region harboured the source population ofP. kurtmuelleriat the studied site.

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2

Socha, Małgorzata, and Maria Ogielska. "Age structure, size and growth rate of water frogs from central European natural Pelophylax ridibundus-Pelophylax esculentus mixed populations estimated by skeletochronology." Amphibia-Reptilia 31, no. 2 (2010): 239–50. http://dx.doi.org/10.1163/156853810791069119.

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AbstractCentral European water frog Pelophylax esculentus (formerly known as Rana esculenta) is a natural hybrid between P. lessonae and P. ridibundus. The hybrids reproduce by hybridogenesis and usually share populations with one of the parental species. Natural ridibundus-esculentus (R-E) mixed populations are rare. The population described herein is composed of 80% P. ridibundus and 20% P. esculentus represented by both sexes. We analyzed 159 adults and 228 juveniles. Age of adults collected from breeding sites ranged from 2 to 6 years in males and from 3 to 7 years in females of both taxa. The percentage of individuals older than 5 years was low. Average age of P. ridibundus was higher than that of P. esculentus. In P. ridibundus the average age of females was higher than that of males. In P. esculentus the difference between ages of females and males was not significant. Measurements of yearly radial growth of long bones revealed that the frogs grew intensively before reaching sexual maturity (3 years for females and 2 years for males). In the group of juveniles before I hibernation, P. esculentus were significantly bigger than P. ridibundus, however, there was no difference in body size between both taxa after I hibernation i.e., before the start of a new growth season. Mean LAG-1 diameters were significantly greater in adults P. ridibundus than in juveniles after I hibernation, but not in P. esculentus.

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3

Düşen, S., and M. Öz. "Helminth fauna of the Eurasian marsh frog, Pelophylax ridibundus (Pallas, 1771) (Anura: Ranidae), collected from Denizli Province, Inner-West Anatolia Region, Turkey." Helminthologia 50, no. 1 (May 1, 2013): 57–66. http://dx.doi.org/10.2478/s11687-013-0108-4.

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AbstractIn this research, a total of 298 Eurasian marsh frogs, Pelophylax ridibundus (Pallas, 1771) were collected from different localities in Denizli province (Inner-west Anatolia Region, the eastern part of Aegean Region) Turkey between 2006 and 2009 and examined for helminths. Of 262 (87.91 %) Pelophylax ridibundus samples were infected with one or more helminths. Pelophylax ridibundus harbored eight species of digeneans (Diplodiscus subclavatus, Gorgoderina vitelliloba, Gorgodera cygnoides, Pleurogenoides medians, Prosotocus confusus, Skrjabinoeces breviansa, Encyclometra colubrimurorum and Ophistoglyhe ranae), one species of cestode (Nematotaenia dispar), two species of acanthocephalans (Acanthocephalus ranae and Pomphorhynchus laevis), and six species of nematodes (Rhabdias bufonis, Oswaldocruzia filiformis, Cosmocerca ornata, Oxysomatium brevicaudatum, Eustrongylides sp. and Abbreviata sp.). P. ridibundus represents a host record for Nematotaenia dispar in Turkey.

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4

Kramshøj., Eric. "LARUS RIDIBUNDUS IN SPITSBERGEN." Ibis 110, no. 1 (June 28, 2008): 106. http://dx.doi.org/10.1111/j.1474-919x.1968.tb07986.x.

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5

Zhelev, Zhivko, Georgi Popgeorgiev, Atanas Arnaudov, Katerina Georgieva, and Nikolay Mehterov. "Fluctuating asymmetry in Pelophylax ridibundus (Amphibia: Ranidae) as a response to anthropogenic pollution in south Bulgaria." Archives of Biological Sciences 67, no. 3 (2015): 1009–23. http://dx.doi.org/10.2298/abs141210064z.

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The aim of this study was to investigate the integral indicator for developmental stability, the fluctuating asymmetry (FA), in the marsh frog Pelophylax ridibundus populations that inhabit biotopes of different types (running rivers and still, dam lakes), when exposed to different types of anthropogenic pollution (domestic sewage pollution and heavy metal pollution) in south Bulgaria. A total of 920 P. ridibundus individuals were used for FA analyses over three years (2009-2011). Fluctuating asymmetry was defined by 10 morphological traits, using the index frequency of asymmetric manifestation of an individual (FAMI). In closed water basins, regardless of the nature of toxicants, the FA values in P. ridibundus populations were statistically lower than those in river populations. The FA values were constantly the highest under conditions of sustained anthropogenic pollution, with high concentrations of toxicants in rivers with domestic sewage pollution and heavy-metal pollution. The results provide better opportunities to use FA in P. ridibundus populations for bioindication and biomonitoring, and for parallel and independent analyses of the physicochemical assessment of the environmental condition.

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6

Jośko, Paulina, and Maciej Pabijan. "Recent shifts in taxonomic compositions of water frog populations (Anura: Pelophylax) inhabiting fish ponds in southern Poland." Amphibia-Reptilia 42, no. 1 (September 29, 2020): 59–72. http://dx.doi.org/10.1163/15685381-bja10031.

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Abstract In Central Europe, water frog species coexist in assemblages consisting of Pelophylax lessonae, P. ridibundus and their hybridogenetic hybrid, P. esculentus. Population compositions are poorly understood, partly because of difficulties in distinguishing hybrids from parentals by means of morphology alone. Environmental change and human-mediated, cryptic introductions of non-native water frog species have modified local assemblages. In this contribution we examined the structure of nine water frog populations inhabiting mostly large fish ponds in the Upper Vistula river valley of southern Poland using morphology and PCR-based genotyping of single loci in the nuclear and mitochondrial genomes. We found four different water frog population compositions: two with only P. ridibundus, one composed of P. lessonae and P. esculentus, three with P. ridibundus and P. esculentus, and three containing all three water frog taxa. Historical data show that the area was previously inhabited by lessonae-esculentus populations. We propose that both ecological and genetic replacement by expanding P. ridibundus may have contributed to the decline of the former. Overall, 18% of P. ridibundus frogs contained introgressed P. lessonae mtDNA, however, the frequency of introgressants was most pronounced in populations with a high proportion of P. esculentus. Exotic water frogs were not detected in the study area. Our results bear significance for water frog population dynamics and conservation in Central Europe and highlight the importance of long-term monitoring for the detection of changes in population composition in these amphibians.

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7

Berger, Leszek, Maciej Pabijan, Mariusz Rybacki, and Elzbieta Czarniewska. "Large eggs and ploidy of green frog populations in Central Europe." Amphibia-Reptilia 32, no. 2 (2011): 149–58. http://dx.doi.org/10.1163/017353710x546495.

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AbstractGreen frogs of Central Europe consist of three taxa: Pelophylax ridibundus, P. lessonae and their natural hybridogenetic hybrid, P. esculentus, which forms as a rule mixed populations with its parental species. We examined 659 095 eggs from P. ridibundus (48 females), P. lessonae (133 females) and P. esculentus (170 females) originating from 39 populations in Austria, Denmark, Germany and Poland. Some females of each taxon laid eggs that fell into discrete size classes (small, medium and large). Large eggs were mostly diploid gametes from which triploids developed. They were found in P. esculentus (25 233 large eggs in 152 spawns), P. lessonae (81 in 10 spawns) and P. ridibundus (7 in 3 spawns). The main purpose of the paper was to demonstrate that the numbers of large eggs were clearly associated with triploid P. esculentus frogs. In pure hybrid (esculentus) populations large eggs comprised between 2.44-40.96% of all ova, while triploid adult frogs constituted between 13.9-73.2% of all individuals, in mixed ridibundus-esculentus populations the large eggs and triploid frogs ranged between 0.85-36.6% and 9.2-56.2%, respectively. However, in mixed lessonae-esculentus populations large eggs comprised only 1.74% of the spawns, whereas triploid frogs represented 2.1% of the adults in the population.

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8

Paunescu, Alina, Irina Fierascu, Radu Claudiu Fierascu, Cristina Maria Ponepal, Cristina Mihaescu, and Liliana Cristina Soare. "Histopathological Alteration on Marsh Frog Skin Induced by the Action of Dual Gold 960EC Herbicide." Proceedings 29, no. 1 (October 21, 2019): 124. http://dx.doi.org/10.3390/proceedings2019029124.

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9

Lukanov, Simeon, Georgi Popgeorgiev, and Nikolay Tzankov. "First bioacoustic and morphological data for the presence of Pelophylax bedriagae in Bulgaria." Acta Scientifica Naturalis 5, no. 1 (March 1, 2018): 54–63. http://dx.doi.org/10.2478/asn-2018-0008.

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AbstractWater frog mating calls from two localities were studied and analyzed. Recordings were made in the summer of 2010 at the Arkutino swamp near the town of Primorsko and at the Vurbitza River near the town of Momchilgrad. A total of 154 calls were analyzed and the results suggested the presence of both the Marsh frog (Pelophylax ridibundus) and the Levant frog (Pelophylax bedriagae) in both sites, with the former being more frequent in Vurbitza River, and the latter – in Arkutino. At Vurbitza, we also captured and measured 2 specimens, which morphological characteristics differed from P. ridibundus and matched those of P. bedriagae. These are the first localities for P. bedriagae in Bulgaria.

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10

Suriadna, N. M., G. I. Mykytynets, M. Pupiņš, and V. Y. Gasso. "Population systems of Eurasian water frogs (Pelophylax) in the south of Ukraine." Biosystems Diversity 28, no. 2 (May 30, 2020): 154–62. http://dx.doi.org/10.15421/012021.

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Ecological and evolutionary consequences of population-genetic processes that occur because of natural cross-species hybridization can show mechanisms of overcoming the reproductive barrier and obtaining the species status by a hybrid taxon. This is clearly seen in the population systems of Eurasian water frogs – Pelophylax esculentus complex. The P. esculentus (E) hybrid usually discards one of the parental genomes of P. lessonae (L) or P. ridibundus (R) and reproduces semi-clonally. The genetic structure and direction of gene flows precisely depend on the type and distribution of mixed or pure population systems of water frogs. Three population systems in the south of Ukraine were identified and confirmed as RR, RE and REL. The populations of P. ridibundus are most common (76.2%). A mixed population systems of P. ridibundus and P. esculentus (20.0%) are concentrated in the floodplains of large rivers where triploids were found and the unisexual hybrids (1.0♂ : 0.1♀) were proved. Parent species populations having different ploidy of P. esculentus such as 3n and for the first time 4n were found. A mixed system of three taxa (REL) is rare (3.8%) and locally concentrated in the lower Danube and Dnieper with the smallest proportion of P. lessonae. We did not find populations of P. lessonae (LL), P. esculentus (EE, very rare system of hybrids only), and two mixed populations of parental species RL and semi-clonal LE in the south of Ukraine, but they are known for northern areas. The high number of P. ridibundus tends to decrease; the scarce P. esculentus and the extremely rare P. lessonae require special conservation measures. P. ridibundus (RR) occupies a wide range of diverse natural, permanent, temporary, coastal, continental, and artificial freshwater bodies, including synanthropic ecosystems. Mixed population systems inhabit willow and poplar forests in the floodplains of large rivers. In the south of Ukraine rare and isolated populations of the water frogs occurring outside the main range can be relict. Biotopic preferences, ratio and number of constituent taxa are crucial for an adequate assessment of biological (taxonomic) diversity and development of an appropriate strategy for the population systems’ conservation. Such characteristics as unisexuality of hybrids, their spreading patterns, specific sex structure and ploidy in different population systems of the P. esculentus complex contribute to the understanding of the hybridogenetic dynamics; produce new tendencies of becoming independent hybridogenous taxa and emergence of new evolutionary relationships.

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11

Nelsen, Ingrid, and Roland Brandl. "Wachstum und Organentwicklung bei Lachmöwennestlingen (Larus ridibundus)." Journal of Ornithology 128, no. 4 (October 1987): 431–39. http://dx.doi.org/10.1007/bf01644659.

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12

Bruni, Giacomo. "Will there be a second extinction? Molecular identification of multiple alien water frogs (Pelophylax ridibundus sensu lato) in Tuscany, Central Italy, reveals genetic pollution within a unique hybridogenetic system." Herpetological Journal, Volume 30, Number 3 (July 1, 2020): 147–58. http://dx.doi.org/10.33256/hj30.3.147158.

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The introduction of alien water frogs is perhaps one of the most underestimated herpetological conservation issues in Europe. The identification of distinct species is highly challenging at the phenotypic level, and artificial syntopy between various taxa and lineages may lead to diverse outcomes, including hybridisation and local extinction. In central Italy the native synklepton of Pelophylax bergeri (the parental taxon) and P. kl. (klepton) hispanicus (the hybridogenetic hybrid, which clonally transmits the genome of an extinct ridibundus-like taxon) is present. Until recently, data regarding the presence of alien water frogs in central Italy was scarce, and no alien taxa have been reported for Tuscany. In this study, four distinct non-native Pelophylax lineages have been identified via molecular analysis in the Cecina and Arno river basins and ascribed to the Marsh frog group (P. ridibundus sensu lato). Alien Pelophylax ridibundus, P. kurtmuelleri, and P. cf. bedriagae sensu stricto currently appear to be widespread in the Cecina basin. Furthermore, evidence of hybridisation with autochthonous taxa has been suggested by genetic analyses in four out of eight sampling localities. With a view to evaluate urgent conservation strategies, a greater sampling effort is required to assess the actual distribution and ecology of the alien lineages, and further research is necessary to measure their impact on the native hybridogenetic system of the central-southern Italian pool frogs.

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13

Muñoz, Francisco J., and Mónica De la Fuente. "Lymphoid distribution in the migratory gull Larus ridibundus." Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 136, no. 3 (November 2003): 749–56. http://dx.doi.org/10.1016/s1095-6433(03)00243-5.

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14

Ляпков, С. М. "Озерная лягушка (Pelophylax ridibundus) в термальных водоемах Камчатки." Зоологический журнал 93, no. 12 (2014): 1427–32. http://dx.doi.org/10.7868/s0044513414120101.

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15

Prévot-Julliard, Anne-Caroline, Roger Pradel, Jean-Dominique Lebreton, and Frank Cézilly. "Evidence for birth-site tenacity in breeding Common Black-headed Gulls, Larus ridibundus." Canadian Journal of Zoology 76, no. 12 (December 1, 1998): 2295–98. http://dx.doi.org/10.1139/z98-176.

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We show that in a large colony of Common Black-headed Gulls (Larus ridibundus) in an unstable aquatic habitat, adults that return to their natal colony tend to breed in close proximity to their natal site. We discuss this finding in relation to potential benefits from colonial nesting.

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16

Beer, C. G. "THE EGG-ROLLING OF BLACK-HEADED GULLS LARUS RIDIBUNDUS." Ibis 104, no. 3 (June 28, 2008): 388–98. http://dx.doi.org/10.1111/j.1474-919x.1962.tb08665.x.

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17

Stepanyuk, Ya V., and M. F. Kovtun. "Morphogenesis of Vomeronasal Organ of Pelophylax ridibundus (Amphibia, Anura)." Vestnik Zoologii 47, no. 4 (August 1, 2013): 357–63. http://dx.doi.org/10.2478/vzoo-2013-0038.

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Abstract The morphogenesis of the lake frog (Pelophylax ridibundus) vomeronasal organ was studied during different ontogenesis stages. The vomeronasal organ is laid after the formation of olfactory sacs, which are lined by olfactory epithelium, and after choan formation. Vomeronasal organ anlage takes place during G24 stage of larval development, which is the result of inflection and cell redistribution of olfactory epithelium rostroventral part. Formation of the vomeronasal organ finished at the beginning of metamorphosis. Apparently, vomeronasal organ appeared in aquatic Amphibia ancestors and after their transition from aquatic to terrestrial environment it developed new adaptive functions

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18

Вершинин, В. Л., И. А. Ситников, С. Д. Вершинина, А. Г. Трофимов, А. А. Лебединский, and И. И. Миура. "Митохондриальная гетероплазмия у озерной лягушки ( Pelophylax ridibundus Pallas, 1771 )." Генетика 55, no. 8 (2019): 972–77. http://dx.doi.org/10.1134/s0016675819080174.

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19

Vershinin, V. L., I. A. Sitnikov, S. D. Vershinina, A. G. Trofimov, A. A. Lebedinsky, and I. J. Miura. "Mitochondrial Heteroplasmy in Marsh Frog (Pelophylax ridibundus Pallas, 1771)." Russian Journal of Genetics 55, no. 8 (August 2019): 1041–45. http://dx.doi.org/10.1134/s1022795419080179.

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20

Iacob, O. C. "Parasitism with Acanthocephalus ranae in frogs (Pelophylax ridibundus Pallas 1771), from North-east Romania." Helminthologia 58, no. 1 (February 10, 2021): 68–73. http://dx.doi.org/10.2478/helm-2021-0008.

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Summary The present study was carried out on 10 frogs, Pelophylax ridibundus (Pallas, 1771), captured near the river Bahlui, Iasi, between April and May, 2019, for the study of digestive helminths and their effect on the digestive tract. Macroscopic examination of the general cavity revealed distension of the small intestine. The sectioning of the intestinal wall revealed a variable number of parasites (1 – 12) with a whitish cylindrical body, anchored in the duodenal mucosa. The morphological study of the parasites confirmed the species as Acantocephalus ranae. The prevalence of the infection was 60 % and the average intensity was 4.83 ± 4.15. Lesions of the small intestine were characterized by catarrhal enteritis, hemorrhagic spots and ulcers on the mucosa, occlusion and obstruction of the intestinal lumen. Histologically, eosinophilic inflammatory infiltrate in the glandular crypts, mucosal and submucosal edema, fibrosis and conjunctival hyperplasia, total mucosal atrophy, were found. The infection with Acanthocephalus ranae in Pelophylax ridibundus caused severe pathological changes, conditioned by the intensity of the infection, aspects revealed for the first time in Romania.

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21

Trofimov, Alexander G. "Interpopulation comparison of skeletal anomalies of Pelophylax ridibundus Pallas, 1771." Vestnik of Saint Petersburg University. Biology, no. 3 (2016): 150–56. http://dx.doi.org/10.21638/11701/spbu03.2016.325.

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22

Jennings, A. R., and E. J. L. Soulsby. "DISEASE IN A COLONY OF BLACK-HEADED GULLS LARUS RIDIBUNDUS." Ibis 100, no. 3 (April 3, 2008): 305–12. http://dx.doi.org/10.1111/j.1474-919x.1958.tb00400.x.

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23

Nelsen, I., and R. Brandl. "Plasma glucose and haematocrit of young black-headed gullsLarus ridibundus." Journal of Zoology 215, no. 1 (May 1988): 183–87. http://dx.doi.org/10.1111/j.1469-7998.1988.tb04892.x.

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24

Shakhparonov, Vladimir V., and Sergei V. Ogurtsov. "Marsh frogs, Pelophylax ridibundus, determine migratory direction by magnetic field." Journal of Comparative Physiology A 203, no. 1 (November 24, 2016): 35–43. http://dx.doi.org/10.1007/s00359-016-1132-x.

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25

Markkola, Juha, Eino Merilä, Annamari Markkola, and Ulla Ahonen. "Structure and composition of severely defective eggshells of larus ridibundus." Micron and Microscopica Acta 21, no. 3 (1990): 164–65. http://dx.doi.org/10.1016/0739-6260(90)90053-i.

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26

Van Muyen, Ben. "First record of Black-headed Gull Larus ridibundus for Benin." Bulletin of the African Bird Club 12, no. 2 (August 2005): 164–65. http://dx.doi.org/10.5962/p.309758.

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27

Drohvalenko, Mykola. "Extended breeding of the Marsh Frog, Pelophylax ridibundus (Pallas 1771)." Reptiles & Amphibians 28, no. 1 (May 13, 2021): 37–39. http://dx.doi.org/10.17161/randa.v28i1.15301.

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Iftime, Alexandru, and Oana Iftime. "Observations on the Herpetofauna of the Builavânturariţa Massif (Southern Carpathians, Romania )." Travaux du Muséum National d'Histoire Naturelle "Grigore Antipa" 56, no. 1 (August 1, 2013): 93–101. http://dx.doi.org/10.2478/travmu-2013-0007.

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Abstract The results of herpetological investigations in the Buila-Vânturariţa massif (Southern Carpathians, Romania) and its surrounding areas are reported here. 19 amphibian and reptile species were identified (Salamandra salamandra, Triturus cristatus, Ichthyosaura alpestris, Lissotriton vulgaris, Bombina variegata, Bufo bufo, B. viridis, Hyla arborea, Rana temporaria, R. dalmatina, Pelophylax ridibundus, P. lessonae, Emys orbicularis, Lacerta agilis, L. viridis, Podarcis muralis, Zootoca vivipara, Zamenis longissimus, Natrix natrix) and are presented together with distribution and ecological data.

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Bogdan, Horia-Vlad, Severus-Daniel Covaciu-Marcov, Cornel Antal, Alfred-Ştefan Cicort-Lucaciu, and Istvan Sas. "New cases of winter-active amphibians in the thermal waters of Banat, Romania." Archives of Biological Sciences 63, no. 4 (2011): 1219–24. http://dx.doi.org/10.2298/abs1104219b.

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In the winter of 2010/2011 we identified 6 new thermal habitats, with winter-active amphibian populations in the Banat region of south-western Romania. The diversity of the amphibian species was small, only 2 species were observed: Bombina bombina and Pelophylax ridibundus. In waters with high flow and temperature, the number of winteractive frogs reached several hundred. All the new thermal habitats are artificial, being subjected to a powerful anthropogenic pressure.

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Dökenel, Gülşah, and Selmin Özer. "Bacterial agents isolated from cultured marsh frog (Pelophylax ridibundus, Pallas 1771)." Ege Journal of Fisheries and Aquatic Sciences 36, no. 2 (June 15, 2019): 115–24. http://dx.doi.org/10.12714/egejfas.2019.36.2.03.

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Marsh frogs (Pelophylax ridibundus) are preferred in European cuisine. In recent years, interest in farming of marsh frogs has increased, but little is known about their bacterial diseases. This research was carried out in a marsh frog farming operation in Mersin, Turkey, in order to determine the bacterial diversity. For this purpose, a total of 339 frog, 30 water, and 8 feed samples were collected. Isolation and identification of bacteria were carried out by conventional techniques and the VITEK-2 compact system. Antimicrobial susceptibility testing was performed by Kirby-Bauer disc diffusion method. A total of 239 isolates of 49 different species, including 31 Gram negative rod-shaped bacteria, 9 Gram positive rod-shaped sporeforming bacteria, and 9 Gram positive cocci-shaped non-sporeforming bacteria have been identified. These bacteria species were detected from 25 (83.3%) water, 5 (62.5%) feed samples, and 64 (84.2%) of 76 frog specimens. Antimicrobial susceptibility and MAR index values ranged between 1.4-95.8% and 0.13-0.73, respectively. In conclusion, the presence of opportunistic pathogenic bacteria in water, feed and frog specimens, which could pose risk for frogs and human health, have been detected in the marsh frog farm in Mersin. This study reveals, that further investigations are necessary for sustainable marsh frog breeding in Turkey.

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Kidov, A. A. "DISTRIBUTION OF THE MARSH FROG, PELOPHYLAX RIDIBUNDUS (PALLAS, 1771) IN SOUTHEASTERN AZERBAIJAN." Tambov University Reports. Series: Natural and Technical Sciences 21, no. 5 (2016): 1775–80. http://dx.doi.org/10.20310/1810-0198-2016-21-5-1775-1780.

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32

Iftime, Alexandru, and Oana Iftime. "Contributions to the Knowledge Regarding the Distribution and Ecology of the Herpetofauna of Ţarcu Massif (Southern Carpathians, Romania)." Travaux du Muséum National d'Histoire Naturelle "Grigore Antipa" 56, no. 1 (August 1, 2013): 81–92. http://dx.doi.org/10.2478/travmu-2013-0006.

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Abstract The results of herpetological investigations in the Ţarcu massif (Southern Carpathians, Romania) and its surrounding areas are reported here. 21 amphibian and reptile forms were identified (Salamandra salamandra, Triturus cristatus, Ichthyosaura alpestris, Lissotriton vulgaris, Bombina variegata, Bufo bufo, B. viridis, Hyla arborea, Rana temporaria, R. dalmatina, Pelophylax ridibundus, P. kl. esculentus, Lacerta agilis, L. viridis, Zootoca vivipara, Podarcis muralis, Anguis colchica, Zamenis longissimus, Natrix natrix, N. tessellata, Vipera ammodytes) and are presented together with distribution and ecological data.

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33

Zalipuha, I. N., A. M. Misyura, and A. A. Marchenkovskaya. "Биохимические показатели амфибий из водоемов с различным уровнем поступления отходов уранодобывающей промышленности." Biosystems Diversity 17, no. 1 (April 12, 2009): 87–94. http://dx.doi.org/10.15421/010913.

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Исследовано влияние отходов предприятий по добыче и переработке урановой руды на параметры метаболизма фонового вида амфибий Приднепровского региона - озерной лягушки (Pelophylax ridibundus). Установлено изменение содержания в органах и тканях животных белка, липидов и углеводов с возрастом, а также уменьшение этих биохимических параметров организма животных в зависимости от степени влияния загрязнения. Значительное увеличение расхода энергии запасных энергетических веществ (липидов и углеводов) - один из механизмов биохимической адаптации, способствует частичной резистентности амфибий в условиях воздействия отходов предприятий этого вида горнодобывающей промышленности.

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Iftime, Alexandru, and Oana Iftime. "Contributions to the Knowledge on the Amphibians and Reptiles of Teleorman County (Southern Romania)." Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” 58, no. 1-2 (April 1, 2016): 63–71. http://dx.doi.org/10.1515/travmu-2016-0009.

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Abstract The results of faunistical surveys of the amphibians in Teleorman county (Southern Romania) are presented here; we have identified nine amphibian species (Triturus cristatus, Lissotriton vulgaris, Bombina bombina, Pelobates syriacus, P. fuscus, Bufo bufo, B. viridis, Hyla arborea, Rana dalmatina, Pelophylax ridibundus), two amphibian hybrids (Triturus cristatus × T. dobrogicus and Pelophylax kl. esculentus) and six reptile species (Emys orbicularis, Lacerta agilis, L. viridis, Podarcis tauricus, Natrix natrix, Dolichophis caspius), with new records for many of these.

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Берзин, Д. Л., М. Я. Чеботина, and В. П. Гусева. "Накопление радионуклидов в озерной лягушке Pelophylax ridibundus в зоне атомного предприятия." Биология внутренних вод, no. 6 (2020): 613–19. http://dx.doi.org/10.31857/s0320965220060042.

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Chang, Hua. "Pathogenicity Analysis of Klebsiella oxytoca Isolated from Larus ridibundus Migratory Birds." Pakistan Veterinary Journal 38, no. 04 (October 1, 2018): 449–551. http://dx.doi.org/10.29261/pakvetj/2018.096.

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Gosling, A. P., T. J. Christmas, A. J. Parr, and S. E. Christmas. "Origins of Black-Headed Gulls (Larus ridibundus) Wintering in Central London." Colonial Waterbirds 13, no. 2 (1990): 129. http://dx.doi.org/10.2307/1521579.

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Korzh, A. P., and T. V. Zahovalko. "Urbanization of fauna on the example of marsh frog (Pelophylax ridibundus)." Ecology and Noospherology 26, no. 3-4 (October 8, 2015): 116–23. http://dx.doi.org/10.15421/031525.

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Recently, the number of published works devoted to the processes of synanthropization of fauna, is growing like an avalanche, which indicates the extreme urgency of this theme. In our view, the process of forming devices to coexist with human and the results of his life reflects the general tandency of the modern nature evolution. Urbanization is characteristic for such a specific group of animals like amphibians, the evidence of which are numerous literature data. Many researchers use this group to assess the bioindicative quality of the environment. For this aim a variety of indicators are used: from the cellular level of life of organization up to the species composition of the group in different territories. At the same time, the interpretation of the results is not always comparable for different areas and often have significantly different interpretations by experts. Urban environment, primarily due to the contamination is extremely aggressive to amphibians. As a consequence, the urban populations of amphibians may be a change in the demographic structure, affecting the reproductive ability of the population, the disappearance of the most sensitive species or individuals, resizing animals, the appearance of abnormalities in the development, etc. At the same time play an important amphibians in the ecosystems of cities, and some species in these conditions even feel relatively comfortable. Therefore, it is interesting to understand the mechanisms of self-sustaining populations of amphibians in urban environments. To assess the impact of natural and anthropogenic factors on the development of amphibian populations were used cognitive modeling using the program Vensim PLE. Cognitive map of the model for urban and suburban habitat conditions were the same. The differences concerned the strength of connections between individual factors (migration, fertility, pollution) and their orientation. In general, factors like pollution, parasites, predators had negative impact on the population, reducing its number. The birth rate, food and migration contributed to raising number of individuals. Some of the factors affected on the strength to of each other as well: the majority of the factors affected the structure of the population, had an influence on the fertility. Thanks to it the model reflects the additive effect of complex of factors on the subsequent status of the population. Proposed and analyzed four scenarios differing strength and duration of exposure. In the first scenario, a one-time contamination occurs and not subsequently repeated. The second and third scenario assumes half board contamination, 1 year (2 scenario) and two years (scenario 3). In the fourth scenario, the pollution affected the population of amphibians constantly. In accordance with the results of simulation, much weaker than the natural populations respond to pollution - have them as an intensive population growth and its disappearance at constant pollution is slow. Changes to other parameters of the model showed that this pollution is the decisive factor -only the constant action leads to a lethal outcome for the populations. All other components of the model have a corrective effect on the population dynamics, without changing its underlying trand. In urban areas due to the heavy impact of pollution maintaining the population is only possible thanks to the migration process – the constant replenishment of diminishing micropopulations of natural reserves. This confirms the assumption that the form of existence metapopulations lake frog in the city. In order to maintain the number of amphibians in urban areas at a high level it is necessary to maintain existing migration routes and the creation of new ones. Insular nature of the placement of suitable habitats in urban areas causes the metapopulation structure of the types of urbanists. Therefore, the process of urbanization is much easier for those species whicht are capable of migration in conditions of city. In the initial stages of settling the city micropopulationis formed by selective mortality of the most susceptible individuals to adverse effects. In future, maintaining the categories of individuals is provided mainly due to migration processes metapopulisation form of the species of existence is supported). It should be noted that the changes in the previous levels are always saved in future. In the case of reorganizations of individuals we of morphology can assume the existence of extremely adverse environmental conditions that threaten the extinction of the micropopulations.

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Debruyne, Lies, Tina Broman, Sven Bergström, Björn Olsen, Stephen L. W. On, and Peter Vandamme. "Campylobacter volucris sp. nov., isolated from black-headed gulls (Larus ridibundus)." International Journal of Systematic and Evolutionary Microbiology 60, no. 8 (August 1, 2010): 1870–75. http://dx.doi.org/10.1099/ijs.0.013748-0.

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During a study of the prevalence of Campylobacter jejuni in black-headed gulls (Larus ridibundus) in Sweden, three isolates, strains LMG 24379, LMG 24380T and LMG 24381, were initially identified as Campylobacter lari. Further characterization by both AFLP and whole-cell protein SDS-PAGE analyses revealed that they formed a distinct group in the genus Campylobacter. This unique position was confirmed by phenotypic characterization, 16S rRNA and hsp60 gene sequence analysis and DNA–DNA hybridizations. The combined data confirm that these isolates represent a novel species within the genus Campylobacter, for which the name Campylobacter volucris sp. nov. is proposed. The type strain is LMG 24380T (=CCUG 57498T).

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Dufresnes, Christophe, Julien Leuenberger, Valentin Amrhein, Christoph Bühler, Jacques Thiébaud, Thierry Bohnenstengel, and Sylvain Dubey. "Invasion genetics of marsh frogs (Pelophylax ridibundus sensu lato) in Switzerland." Biological Journal of the Linnean Society 123, no. 2 (December 30, 2017): 402–10. http://dx.doi.org/10.1093/biolinnean/blx140.

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Akulenko, N. M. "Macrophages and Pigment Cells in the Liver of Pelophylax ridibundus (Anura)." Zoodiversity 54, no. 4 (September 11, 2020): 299–306. http://dx.doi.org/10.15407/zoo2020.04.299.

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Иванова, Н. Л., and Д. Л. Берзин. "Формирование популяционной специфики озерной лягушки ( Pelophylax ridibundus ) в водоемах Среднего Урала." Экология, no. 6 (2019): 471–74. http://dx.doi.org/10.1134/s0367059719060064.

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Ležalová-Piálková, Radka, and Marcel Honza. "Responses of Black-headed Gulls Larus ridibundus to conspecific brood parasitism." Journal of Ornithology 149, no. 3 (February 23, 2008): 415–21. http://dx.doi.org/10.1007/s10336-008-0283-0.

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Rajchard, J., and V. Rajchard. "Defective wing development in black-headed gull (Larus ridibundus) – case report." Veterinární Medicína 48, No. 12 (March 30, 2012): 373–74. http://dx.doi.org/10.17221/5793-vetmed.

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In 2000–2001 juvenile individuals of black-headed gull (Larus ridibundus) were repeatedly found in a Nadeje fishpond system in the Trebon Basin Area that were incapable of flying, with deformed wings. The investigation proved the rotation of metacarpal bones and luxation of the carpal joint. The Roentgen photograph did not show any consequences of any fracture, but this was evidently a post-traumatic state. A possible explanation is traumatisation of developing wings in young birds that got stuck by their wings in viscous mud around the nest colony.

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Fominykh, A. S., A. I. Faizulin, and F. F. Zaripova. "ON DISTRIBUTION OF MARSH FROG PELOPHYLAX RIDIBUNDUS (PALLAS, 1771) IN THE CHELYABINSK PROVINCE." Tambov University Reports. Series: Natural and Technical Sciences 21, no. 5 (2016): 1848–52. http://dx.doi.org/10.20310/1810-0198-2016-21-5-1848-1852.

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Lyapkov, Sergey M., Tatyana E. Kondratova, Roman A. Ivolga, Elena A. Kidova, and Artem A. Kidov. "Growth Layers and Its Complex Structure in a Common Species Under Uncommon Conditions: <i>Pelophylax ridibundus</i> in the Talysh Mountains." Russian Journal of Herpetology 28, no. 5 (October 27, 2021): 242–48. http://dx.doi.org/10.30906/1026-2296-2021-28-5-242-248.

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In the Talysh Mountains, the marsh frog, Pelophylax ridibundus (Pallas, 1771), increases its distribution due to human activity. In the mountain forest belt, frogs inhabit flowing ponds with cold spring water. These reservoirs are characterized by a stable temperature regime: the water in them is kept at the level of 10 – 12°C in winter and does not fall below 6°C, and in summer does not rise above 18°C. Probably, the cold flow water of ponds in the mountain-forest belt of Talysh can cause some features of growth and maturation for P. ridibundus. The aim of our work was to study the features of the structure of growth layers including the variation in degree of expression of lines of arrested growth (LAGs) of the marsh frogs in ponds with cold flow water. Frogs were collected in the upper part of the Tangeru River gorge in Sym village of Astara District of Azerbaijan (480 m a.s.l.) in August 2018. In total, we studied skeletochronologically 8 females and 9 males. In contrast to the results of the tubular bones studies in the marsh frog presented in earlier works, the studied individuals are characterized by a more complex and diverse structure in the cross section of shin bones. All the revealed diversity of this structure can be divided into three groups. To the first group are relatively rare cases in which there are growth layers with wintering LAGs and additional growth layers but without additional LAGs. The second group includes more frequent cases in which there are growth layers not only with wintering LAGs but with additional LAGs differing discretely from wintering LAGs. The third group includes the rarest cases where there are growth layers with wintering LAGs and with additional LAGs without discrete difference from wintering LAGs. The revealed high variable structure of growth layers and distinctiveness of LAGs in P. ridibundus can be explained by unusual temperature regime in habitat of studied population and the existence of several activity period during a year. The most continuous period of low temperatures (February and March) corresponds to formation hibernation LAGs and dark rings in growth layers. Besides, period from early December to late January may be so cold that frog growth retard sufficiently or stop completely. The formation of more dark parts of growth layers or even several additional LAGs can correspond to this period.

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Kozhevnikova, V. N., and G. A. Lada. "ON POLYDACTYLY IN THE MARSH FROG PELOPHYLAX RIDIBUNDUS (PALLAS, 1771) IN TAMBOV PROVINCE." Tambov University Reports. Series: Natural and Technical Sciences 21, no. 1 (2016): 265–68. http://dx.doi.org/10.20310/1810-0198-2016-21-1-265-268.

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Ponepal, Maria Cristina, Monica Marinela Țânțu, Magdalena Diaconu, and Alina Păunescu. "LUNGS HISTOLOGICAL CHANGES IN EXPERIMENTAL INTOXICATION WITH RELDAN 40 EC AT PELOPHYLAX RIDIBUNDUS (PALLAS, 1771)." Current Trends in Natural Sciences 10, no. 20 (December 31, 2021): 122–29. http://dx.doi.org/10.47068/ctns.2021.v10i20.017.

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The objective of this paper is to study the histological changes induced by Reldan 40EC in a dose of 0.01 ml chlorpyrifos/g body weight at the level of the lungs of the amphibian specimens Pelophylax ridibundus (Pallas, 1771). The insecticide was administrated by intraperitoneal injection (1 injection at 2 days in a scheme for 2 weeks). Highly degenerative changes were observed in animals cultured at 22–24°C, compared to those cultured at 4–6°C: thickness of alveolar septa, intraparietal, higher number of hypertrophied goblet cells, disorganization of blood capillaries, fibrosis.

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Dynowska, Maria, Piotr Indykiewicz, and Elżbieta Ejdys. "Black-headed gulls (Chroicocephalus ridibundus) - a natural reservoir of potentially pathogenic microfungi?" Biologia 73, no. 3 (March 2018): 241–46. http://dx.doi.org/10.2478/s11756-018-0030-9.

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Başımoğlu Koca, Y., and S. Koca. "Expressions and localizations of Bax/Bcl-2 proteins during metamorphosis ofPelophylax ridibundus." Biotechnic & Histochemistry 89, no. 1 (August 19, 2013): 41–52. http://dx.doi.org/10.3109/10520295.2013.817607.

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