• Proceedings of the Zoological Society Korea Conference
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• 1999.04a
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• pp.56.1-56
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• 1999

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 1997.10b
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• pp.119.1-119
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• 1997

No Abstract, See Full Text

• The Korean Journal of Zoology
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• v.31 no.1
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• pp.1-10
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• 1988

A syrnpatnc sample of Rana nigrnmaculata sand R plancyi (Anura) from Kwangu, Korea was investigated to clarify their taxonornic status and to estimate the degree of genic variation, genetic relatedness, and reproductive isolation between them, based on electrophoretic analysis, marphometric data, mating call, mating season, and habitat. All the characters measured including morphometric, genetic, behavioral, and ecological suggest that they are distinct species and R nigrnmaculata might have originated from R plancyi (tropical form about three and a half million years ago. An adult female was found to be Fl hybrid between two species The hybrid female possessed fettile eggs and morphologically intermediate to the parental species in head parts, hind limb, and web characters. The differences in mating call, mating behavior, breeding season, and habitat strongly suggest that postmating isolating mechanism is operating, even though very rare hybrid is found.

• The Korean Journal of Zoology
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• v.15 no.3
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• pp.105-110
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• 1972

A cellulosse acetate electrophoretic survey of Korean Anura has revealed the presence of diverse lactate and malate dehydrogenase (LDH and MDH) isozymes. The pattern of LDH and MDH isozymes in the tissues of the central nervous system of the six species of Anura examined are species specific and differ from those of mammals and birds. Both Rana nigromaculata nigromaculata and Rana nigromaculata coreana have two molecular forms of LDH and MDH, respectively, with almost the same pattern. Whole brain homogenate of Rana temporaria shows also a maximum of only two LDH isozymes. Both Bufo bufo asiaticus and Bombina orientalis have five molecular forms of LDH with an entirely different spacing on the zymograms, whereas Rana rugosa has three. Two molecular forms of MDH are present in all animals examined and one band is shown in olfactory lobe and mixture of cerebellum and medulla oblongata of Rana nigromaculata nigromaculata.

• The Korean Journal of Zoology
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• v.16 no.3
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• pp.193-201
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• 1973

A cellulose acetate electrophoretic survey of Korean Anura has revealed the presence of diverse lactate and malate dehydrogenase isozymes. The LDH and MDH isozymes in the tissues of the brain, heart, stomach, skeletal muscle and liver of the six species of Anura examined show the species specific patterns which differ from those of mammals and birds. Two isozymic forms of LDH and MDH exist in both Rana nigromaculata and Rana nigromaculata coreana, respectively, with almost the same pattern. LDH of Bombina orientalis has five isozymic forms, and that of Rana temporaria ornativentris contains four isozymes. Bufo sp. has 3 to 5, and Rana rugosa has 3 to 4 isozymic bands according to the tissues. MDH's of all animals have two isozymic forms with different spacing on the zymograms.

• Proceedings of the Zoological Society Korea Conference
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• 1999.10b
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• pp.45.1-45
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• 1999

No Abstract, See Full Text

• Korean Journal of Environment and Ecology
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• v.18 no.2
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• pp.205-209
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• 2004

For the purpose of this study was accumulating histological data of skin some amphibia near Chiri Mt. and Moodeung Mt. Analyzed Anura and Caudata were Rana nigromaculata, Rana rugosa, Rana catesbeiana, Hynobius leechii. The histological prepared skin of frogs were compared, of which were selected from dorsal and belly. Excretory glands were identified granular glands, mucous glands, serous glands, vacuoles and excretory ducts in epidermal and dermal tissue. And developing excretory glands, well developed excretory glands and post developing excretory glands were identified also. These results were significantly as basal data on the comparative epidermal skin histology on some Korean Amphibia. Probably these glands of amphibian skin could be infered which were adaptable structure to ecological suffered condition. Following study of these results were more considerable data for comparative histology, comparative anatomy and comparative physiology and ecology of Amphibia.

• Animal cells and systems
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• v.16 no.5
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• pp.425-430
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• 2012

The southwestern Australian frog Crinia georgiana (Anura; Myobatrachidae) inhabits ephemeral pools in which the tadpoles often face desiccation. Under these conditions selection on tadpoles can be severe and can directly affect fitness during the aquatic as well as the terrestrial developmental stages. A quantitative genetic study using a half-sib breeding design was conducted to understand the genetic effects on larval life-history traits. We found no significant additive genetic variance in any of larval traits. Except for hatching period, heritability estimates based on females were high in egg size, larval period, snout-vent length, and weight at metamorphosis, suggesting non-additive genetic effects. These results indicate that any response to selection during hatching and larval periods should be predominately governed by non-additive genetic effects in C. georgiana.

• The Korean Journal of Zoology
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• v.31 no.2
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• pp.104-110
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• 1988

The comparative karyological analysis of the Korean treefrog, Hyla japonica and Hyla suweonensis performed by conventional giemsa-staining and NOR-staining method. The karyotypes of both species were the same (2n=24). However, according to the Karyological analysis, the 6th chromosomes of the two species distinctly different. Eventhough the 6th chromosomes of the two species shown the same % length, construction of the 6th chromosome of H.japonica was subtelocentric chromosome while H. suweonensis was submetacentric chromosome. This phenomena could explain that the morphological differences in the 6th chromosomes might be caused by pericentric inversion. The two species have 1 pair of NOR site in the 6th chromosome.

• The Korean Journal of Zoology
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• v.5 no.1
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• pp.35-38
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• 1962

Two subspecies are known to Family Hylidae(Order Anura) in Korea : namely , Hylaarborea japonica GUENTHER and H.a.stepheni BOULENGER, and they have been hitherto distinguished as different subspecies from four characteristics : the rate of interorbital to incternasal length, the rate of diameter of tympanum to diameter of 3 rd finger disc, the rate of the length of inner metatarsal tubercle to diameter of 3 rd finger disc, and the rate of inner metatarsal tubercle to the length of lst toe. The author has compared the above to subspecies for the characteristics with 123 individuals collected from ten different localities in Korea and has found that their fluctation curves overlap each other. The author considers, therefore, that the four characteristics could not be assumed as keys for the classification of the two subspecies and has reached the conclusion that these two subspecies should be regarded as one subspecies and Hyla arborea japonica GUENTHER should be given to both of them as the subspecies name.