Relevant bibliographies by topics / Onychodactylus japonicus

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Academic literature on the topic 'Onychodactylus japonicus'

Author: Grafiati
Published: 4 June 2021
Last updated: 30 July 2024

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Journal articles on the topic "Onychodactylus japonicus"

1

Yartsev, Vadim V., Sophiya S. Evseeva, Irina V. Maslova, and Darya A. Rogashevskaya. "Male and Female Cloacal Anatomy of the Fischer’s Clawed Salamander, <i>Onychodactylus fischeri</i> (Caudata, Hynobiidae)." Russian Journal of Herpetology 28, no. 5 (October 27, 2021): 275–80. http://dx.doi.org/10.30906/1026-2296-2021-28-5-275-280.

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The cloaca of salamanders is a complex organ with exocrine glands involved in the production of sex pheromones, spermatophores, and storage of sperm. Since the cloaca provides reproductive functions, its signs are important for phylogenetic analysis in the evolutionary biology of tailed amphibians. For clarification of intrafamilial variation of cloacal characteristics in hynobiids, we studied the anatomy of male and female cloacae of Onychodactylus fischeri via histological, histochemical, and 3D-reconstruction methods. Males and females had ciliated cloacal linings and with sexual dimorphism in cloacal conformation and cloacal glands. As in other males and females of hynobiids, females of O. fischeri possessed only ventral glands, secreting neutral glycoproteins. In contrast, males of this species had three types of the cloacal glands. Glands «B» were like ventral glands of females and other hynobiids, while glands «A» and «C» had different histochemical and morphological characteristics. As our results are generally consistent with the data for the related species O. japonicus, these characteristics of the male and female cloacal anatomy may be common to all species of the genus Onychodactylus. The presence of three types of unique cloacal glands in males distinguishes Onychodactylus from all other hynobiids and salamanders.
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2

McDowell, William T., and Jan Martan. "Skin Glands of Hynobius nigrescens and Onychodactylus japonicus (Caudata: Hynobiidae)." Journal of Herpetology 28, no. 4 (December 1994): 506. http://dx.doi.org/10.2307/1564968.

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3

AKITA, YOSHINORI, and KOJI MIYAZAKI. "Migration and breeding cycle of Onychodactylus japonicus on Mt. Hodatsu." Japanese journal of herpetology 14, no. 2 (1991): 29–38. http://dx.doi.org/10.5358/hsj1972.14.2_29.

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4

KUSANO, Tamotsu, and Fumio HAYASHI. "Prey Type- and Size-related Handling Time of Larval Salamanders, Onychodactylus japonicus." Japanese journal of herpetology 11, no. 1 (1985): 20–24. http://dx.doi.org/10.5358/hsj1972.11.1_20.

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5

Sato, Iwao, Kazuyuki Shimada, Atsuyuki Yokoi, Tooru Sato, and Tadashi Kitagawa. "Fine Structure and Elemental Analysis of the Enamel in Andrias davidianus (Cryptobranchidae) and Onychodactylus japonicus (Hynobiidae)." Journal of Herpetology 25, no. 2 (June 1991): 141. http://dx.doi.org/10.2307/1564640.

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6

Yoshikawa, Natsuhiko, and Nobuaki Nagata. "Eighteen SSR Markers for the Japanese Clawed Salamander,Onychodactylus japonicus, and Cross-Amplification in its Congeners." Current Herpetology 36, no. 2 (August 2017): 153–58. http://dx.doi.org/10.5358/hsj.36.153.

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7

NOMURA, TAKASHI, and HISAAKI IWASAWA. "Gonadal Development and Germ Cell Kinetics in the Course of Sex Differentiation in the Salamander Onychodactylus japonicus." Japanese journal of herpetology 14, no. 4 (1992): 170–77. http://dx.doi.org/10.5358/hsj1972.14.4_170.

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8

Borzée, Amaël, Spartak N. Litvinchuk, Kyongsim Ri, Desiree Andersen, Tu Yong Nam, Gwang Hyok Jon, Ho Song Man, et al. "Update on Distribution and Conservation Status of Amphibians in the Democratic People’s Republic of Korea: Conclusions Based on Field Surveys, Environmental Modelling, Molecular Analyses and Call Properties." Animals 11, no. 7 (July 9, 2021): 2057. http://dx.doi.org/10.3390/ani11072057.

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Determining the range, status, ecology and behaviour of species from areas where surveys and samplings are uncommon or difficult to conduct is a challenge, such as in the Democratic People’s Republic of Korea (DPR Korea). Here, we used genetic samples, field surveys, call recordings, photographic identification and a literature review to estimate the presence, range and status of amphibians in the DPR Korea. From our combined results and based on the IUCN Red List categories and criteria, we were able to estimate the national threat levels for most species. Our results demonstrated the presence of 18 native species and the suspected presence of Karsenia koreana and two Onychodactylus species. We reported the first record for Rana uenoi in the vicinity of Pyongyang using molecular tools and similarly confirmed the presence of Dryophytes japonicus at the same location. Based on distribution and modelling, we can expect the contact zone between species within the Rana and Onychodactylus genera to be located along the Changbai Massif, a mountain range that marks a shift in ecoregions and acts as a barrier to dispersion. The species richness was higher in the lowlands and at lower latitudes, with such areas populated by up to 11 species, while more northern regions were characterised by species richness of about half of that value. The combination of ecological models and known threats resulted in the recommendation of ten species as threatened at the national level following the IUCN Red List categories and criteria. This high number of threatened species was anticipated based on the high threat level to amphibians in bordering nations and globally. While the ecology of species in the DPR Korea is still understudied, we argue that species relying on agricultural wetlands such as rice paddies are not under imminent threat due to the enduring presence of extensive agricultural landscapes with low rates of chemical use and mechanisation. The maintenance of such landscapes is a clear benefit to amphibian species, in contrast to more industrialised agricultural landscapes in neighbouring nations. In comparison, the status of species dependent on forested habitats is unclear and threat levels are likely to be higher because of deforestation, as in neighbouring nations.
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9

Desnitskiy, Alexey G., and Spartak N. Litvinchuk. "Comparative and phylogenetic perspectives of the cleavage process in tailed amphibians." Zygote 23, no. 5 (September 2, 2014): 722–31. http://dx.doi.org/10.1017/s0967199414000379.

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SummaryThe order Caudata includes about 660 species and displays a variety of important developmental traits such as cleavage pattern and egg size. However, the cleavage process of tailed amphibians has never been analyzed within a phylogenetic framework. We use published data on the embryos of 36 species concerning the character of the third cleavage furrow (latitudinal, longitudinal or variable) and the magnitude of synchronous cleavage period (up to 3–4 synchronous cell divisions in the animal hemisphere or a considerably longer series of synchronous divisions followed by midblastula transition). Several species from basal caudate families Cryptobranchidae (Andrias davidianus and Cryptobranchus alleganiensis) and Hynobiidae (Onychodactylus japonicus) as well as several representatives from derived families Plethodontidae (Desmognathus fuscus and Ensatina eschscholtzii) and Proteidae (Necturus maculosus) are characterized by longitudinal furrows of the third cleavage and the loss of synchrony as early as the 8-cell stage. By contrast, many representatives of derived families Ambystomatidae and Salamandridae have latitudinal furrows of the third cleavage and extensive period of synchronous divisions. Our analysis of these ontogenetic characters mapped onto a phylogenetic tree shows that the cleavage pattern of large, yolky eggs with short series of synchronous divisions is an ancestral trait for the tailed amphibians, while the data on the orientation of third cleavage furrows seem to be ambiguous with respect to phylogeny. Nevertheless, the midblastula transition, which is characteristic of the model species Ambystoma mexicanum (Caudata) and Xenopus laevis (Anura), might have evolved convergently in these two amphibian orders.
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10

Yoshikawa, Natsuhiko, Masafumi Matsui, Kanto Nishikawa, Yasuchika Misawa, and Shingo Tanabe. "Allozymic Variation in the Japanese Clawed Salamander,Onychodactylus japonicus(Amphibia: Caudata: Hynobiidae), with Special Reference to the Presence of Two Sympatric Genetic Types." Zoological Science 27, no. 1 (January 2010): 33–40. http://dx.doi.org/10.2108/zsj.27.33.

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Books on the topic "Onychodactylus japonicus"

1

Kuzʹmin, S. L. The clawed salamanders of Asia (genus Onychodactylus): Biology, distribution, and conservation. Magdeburg: Westarp-Wissenschaften, 1995.

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