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1

The helminth fauna study of European common brown frog (Rana temporaria Linnaeus, 1758) in the Volga basin

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Chikhlyaev I., Ruchin A.
Acta Parasitologica
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2014
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tom 59
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nr 3
In this paper we considered information on the helminth fauna of the European common brown frog (Rana temporaria Linnaeus, 1758) from 10 regions of the Volga basin. This study includes consolidated data of different authors over the last 30 years, supplemented by the results of our own research. There are reliably known finds of 29 species of helminths: Monogenea — 1, Trematoda — 21, Nematoda — 7. Trematodes Gorgodera asiatica Pigulevsky, 1945, Paralepoderma cloacicola (Luhe, 1909), mtc. and nematodes Icosiella neglecta (Diesing, 1851) were observed for the first time in a given host on the territory of Russia and the Volga Basin. Six species of worms make the basis of helminth fauna: nematodes Rhabdias bufonis, Oswaldocruzia filiformis, Neoxysomatium brevicaudatum and Cosmocerca ornata, trematode Haplometra cylindracea and monogenea Polystoma integerrimum. These six species are the most common and widespread parasites of the brown frog. For each species of helminths there is the following information included: taxonomic position, localization, area of detection, biology, definitive hosts, geographic distribution, the degree of host-specificity.
2

Co-occurrence of agile frog [Rana dalmatina Fitz. in Bonaparte] with common frog [Rana temporaria L.] in breeding sites in Southern Poland

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Barton K., Rafinski J.
Polish Journal of Ecology
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2006
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tom 54
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nr 1
A location (area 10 km²) of the agile frog (Rana dalmatina Fitz. in Bonaparte) in a southwest part of the Sandomierz Valley (southern Poland), was surveyed during 4 breeding seasons (1999–2002). Eighteen breeding sites of brown frogs were inspected for their characteristics, presence and numbers of egg-batches, and time of egg deposition. Breeding sites were typically temporary, small, and shallow waters (area 5–30 m², depth <50 cm). The agile frog was found to co-occur only with the common frog (Rana temporaria L.) in most of the sites. Based on the number of egg-batches, the agile frog was more numerous (total of 315 batches in year 2002) than the common frog (163). Over the four years of the study, there were no significant fluctuations in the numbers of eggs. The two species did not differ significantly in their choice of the habitats, except for the sites with low water pH, used predominantly by the agile frog. Habitat niche overlap was high (Pianka’s O = 0.86). In the acid peat bogs (water pH about 4.5) most of the eggs degenerated.
3

Rates of gonad differentiation in green and brown frogs [Amphibia, Anura]

100%
Doruch A., Ogielska M.
Acta Biologica Cracoviensia. Series Botanica et Zoologia. Supplement
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1997
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tom 39
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nr 1
4

Effect of road on the distribution of amphibians in wetland area - test with model-averaged prediction

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Dai Q., Wang Y.
Polish Journal of Ecology
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2011
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tom 59
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nr 4
We studied the effects of roads on presence of Plateau brown frogs (Rana kukunoris Nikolsky, 1918) and Tibetan frogs (Nanorana pleskei Gunther, 1896) in temporary pools of Sedges dominated wetland area in eastern Qinghai- Tibetan Plateau. The road is seven meter-wide, asphalt-paved with daily traffic rate about 400 vehicles. The temporary pools hold water only in summer with surface area of about 2 m2. We used logistic regression models, a theoretic information approach, and model averaging to test the effects of distance from road and depth, area and pH of pools on distribution of frogs in terms of presence/absence in 180 small pools located at 10 to 150 m from the road edge. Observed data showed that presence probabilities of both species declined in the vicinity of roads, starting at approximately 100 m away from the road edge. Model averaging based on AICc (Σωi = 95% confidence) indicated that both distance from road edge and its quadratic term were important predictors for explaining presence of both amphibians. Model-averaged prediction based on 95% confidence model set also revealed non-monotonic increasing curve relationships between presence probability of both amphibians and distance from road edge, even when other habitat variables were held constant. These results indicated that the road-effect zone for both amphibians extended 100 m on side of the wetland roads along which we sampled. Additionally, the results showed that water depth and water pH of pools positively influenced presence of Tibetan frogs and had highest contribution to the models. In contrast, water depth influenced presence of Plateau brown frogs negatively. It was indicated that environmental variables influence the presence of the two species of amphibians in different ways.
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The oldest representative of a brown frog [Ranidae] from the Early Miocene of Germany

80%
Bohme M.
Acta Palaeontologica Polonica
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2001
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tom 46
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nr 1
The brown frogs (Rana temporaria-group) are a monophyletic group in the family Ranidae, which have a scarce fossil record in Europe that begins only in the Late Pliocene. A new fossil from the Dietrichsberg locality (Germany, Thuringia) extends their stratigraphic range back to the Early Miocene, and suggests that their origin lies outside the Western Palaearctic, most probably in Asia, with subsequent immigration in the Burdigalian.
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