Age Determination by Skeletochronology of the Japanese Salamander Hynobius kimurae (Amphibia, Urodela)
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چکیده
منابع مشابه
Estimation of age structure by skeletochronology of a population of Hynobius nebulosus in a breeding season (Amphibia, Urodela).
Using skeletochronology, we determined the age structure of adult Hynobius nebulosus from Kyoto in the breeding season of 1998. From previously marked individuals, the lines of arrested growth proved to be formed once per year, indicating the number of winters each salamander experienced. The age at first reproduction was estimated to be 2.8-2.9 yrs of age in males and 3.8-3.9 yrs in females. T...
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We describe a small salamander from south Central Honshu, Japan, as a new species, Hynobius katoi. The genetic distances between this species and several named species, including sympatric H. kimurae, derived from allozyme data from a starch gel electrophoresis, proved to be sufficiently large to differentiate it at a specific rank. Distribution of this species is confined to the montane region...
متن کاملA new species of lentic breeding Korean salamander of the genus Hynobius (Amphibia, Urodela).
A new species of salamander, Hynobius yangi, is described from Kori (=Hyoam-ri), Busan-shi, southeastern Korea. It is a lentic breeder belonging to the H. nebulosus species group, and has long been confused with another Korean species H. leechii. The new species, however, is genetically substantially differentiated from Korean and Japanese relatives. Hynobius yangi is morphologically very simil...
متن کاملThree new species of the salamander genus Hynobius (Amphibia, Urodela, Hynobiidae) from Kyushu, Japan.
Three new species of lotic breeding Hynobius, formerly assigned to H. boulengeri, are described from the Kyushu region, southwestern Japan. They differ from all the known congeners by a unique combination of body size, character ratios, coloration, mtDNA, and allozymic characteristics. Together with H. stejnegeri they form a clade, which is not a sister group of H. boulengeri, and their speciat...
متن کاملMorphological discrimination of two genetic groups of a Japanese salamander, Hynobius naevius (Amphibia, Caudata).
Hynobius naevius, distributed on western Honshu, Shikoku, and Kyushu Islands of Japan, includes two genetically distinct groups (Groups A and B) that have never been delimited morphologically. Using specimens from the entire species range, we investigated the possibility of distinguishing these groups morphologically. Multivariate analyses of morphometric characters resulted in recognition of t...
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ژورنال
عنوان ژورنال: Zoological Science
سال: 1999
ISSN: 0289-0003
DOI: 10.2108/zsj.16.845