Takashi Matsuki, Masafumi Matsui, Takashi Matsuki, Masafumi Matsui,
We assessed the accuracy of skeletochronology in estimating ages of Japanese clouded salamanders (Hynobius nebulosus) using the individuals whose ages (1–4 yr) are known by their cohort markings and the individuals that were consecutively captured at intervals of 4–7 yr. Skeletochronology correctly estimated the actual ages of 87.5% of individuals with known age. The errors in estimation ranged from -1 to 1 yr with an average of 0.03±0.11 (2SE) yr. In the consecutively captured samples, 77.3% of individuals ...
Tópico(s): Wildlife Ecology and Conservation
2009 - | Current Herpetology
Kanto Nishikawa, Masafumi Matsui, Kanto Nishikawa, Masafumi Matsui,
We compared larval life history between two populations of Hynobius boulengeri from Kyushu, Japan, one from Takachiho on the Sobo-Katamuki Mountains and the other from Kinko on the Osumi Peninsula. They showed variation in life history which seems to be induced partially by differences in water temperature and food availability, but may also reflect differences at the genetic level. Larvae from Takachiho, where the water temperature was lower in winter, developed more slowly but grew more quickly ...
Tópico(s): Species Distribution and Climate Change
2008 - | Current Herpetology
... of three new species (Amphibia: Ranidae) Get access MASAFUMI MATSUI MASAFUMI MATSUI 1Graduate School of Human and Environmental Studies, Kyoto ...
Tópico(s): Animal Behavior and Reproduction
1994 - Oxford University Press | Zoological Journal of the Linnean Society
... S0305-0491(00)00203-0Mamoru Toda, Mutsumi Nishida, Masafumi Matsui, Gan-Fu Wu, Hidetoshi Ota Allozyme variation among ...
Tópico(s): Bat Biology and Ecology Studies
1950 - University of Chicago Press | The American Naturalist
Tópico(s): Lepidoptera: Biology and Taxonomy
1979 - Kyoto University | Contributions from the Biological Laboratory, Kyoto University
Masafumi Matsui, Taeko Utsunomiya,
ABSTRACr.-Call characteristics of Rana (Babina) holsti, R. (B.) subaspera, and Rana adenopleura, were analyzed with sound spectrographs. The calls of the two species of the subgenus Babina were basically similar, consisting of one short note with several harmonic bands. Call characteristics of the two species of Babina suggested their close phylogenetic relationship, whereas Rana adenopleura was judged to be remote from the species of Babina, notwithstanding the similarities in some morphological ...
Tópico(s): Bat Biology and Ecology Studies
1983 - The Society for the Study of Amphibians and Reptiles | Journal of Herpetology
Masafumi Matsui, Kouji Miyazaki,
Tópico(s): Species Distribution and Climate Change
1984 - Zoological Society of Japan | ZOOLOGICAL SCIENCE
Tópico(s): Bat Biology and Ecology Studies
1984 - Kyoto University | Contributions from the Biological Laboratory, Kyoto University
Masafumi Matsui, Takeshi Seto, Yoshiko Kohsaka, Leo J. Borkin,
Abstract Distribution of NORs and C-spots in the karyotypes was compared among six forms of the Bufo bufo complex, i.e. B. j. japonicus, B. j. formosus, B. torrenticola and B. gargarizans miyakonis from Japan, and B. b. bufo and B. b. verrucosissimus from USSR. All forms invariably possessed NORs on 6q. All the 11 pairs of homologous chromosomes had constitutive heterochromatin on the centromere region in every form of toad examined. Further, each form had pericentric heterochromatin on 1p and telomeric ...
Tópico(s): Evolution and Genetic Dynamics
1985 - Brill | Amphibia-Reptilia
Robert F. Inger, Norio Maeda, Masafumi Matsui,
Tópico(s): Marine and environmental studies
1990 - American Society of Ichthyologists and Herpetologists | Copeia
Robert F. Inger, Masafumi Matsui, Tsutomu Hikida, Richard C. Goris,
Tópico(s): Rangeland Management and Livestock Ecology
1990 - American Society of Ichthyologists and Herpetologists | Copeia
近畿地方以北に分布するカスミサンショウウオ-トウホクサンショウウオ複合群244個体のアイソザイムについて,デンプンゲル電気泳動法を用い,17遺伝子座における変異を調べた。これまでに命名されていた6種(トウホク,クロ,ホクリク,アベ,トウキョウ,カスミ)は比較的小さなNeiの遺伝的距離(2種個体群間距離の平均の最小値=0.22)によって,たがいに明瞭に区別された。しかし,これらの種間にみられた遺伝的な関係と,これまで認められてきた系統関係との間には大きな不一致があった。白馬村産のサンショウウオ個体群は,他のすでに命名されている種と比較した場合に,独立種として認めるに足るほどの大きな遺伝的相違を示した。この結果にもとづいて,白馬村産の個体群を新種ハクバサンショウウオとして記載する。この種は中部地方飛騨山脈に含まれる,長野県の山地帯に分布する。カスミサンショウウオ-トウホクサンショウウオ複合群に属し,鋤骨歯列が浅いこと,鋤骨歯数が少ないこと,トウホクとカスミの中間的体型をもつこと,卵嚢外被に縦条を欠くこと,独特のアイソザイム泳動パターンをもつこと,で特徴づけられる。
Tópico(s): Animal Behavior and Reproduction
1987 - | Japanese journal of herpetology
Masafumi Matsui, Takeshi Seto, Taeko Utsunomiya,
The Taiwanese population of Polypedates leucomystax megacephalus is distinct from the Bornean population of P. L leucomystax in adult morphology, mating call, and karyotype. Clear differences in the latter two characteristics suggest the presence of a high degree of genetic differ- entiation between the two populations. The Taiwanese population is therefore regarded as a full species, P. megacephalus Hallowell, 1860. Populations from continental China require further taxo- nomic investigation.
Tópico(s): Evolution and Genetic Dynamics
1986 - The Society for the Study of Amphibians and Reptiles | Journal of Herpetology
Three new species of torrent-dwelling ranid frogs of the Amolops jerboa group from Borneo are described. A. macrophthalmus from Sarawak is a member of a group of species having the posterior side of thigh blotched; it differs from other members by having a wide head and large eyes. A. orphnocnemis, like A. phaeomerus and A. jerboa, has a small body; it differs from those species by having a mottled thigh and dusky ventral surface of the lower leg. A. amoropalamus differs from other named species ...
Tópico(s): Antimicrobial Peptides and Activities
1986 - American Society of Ichthyologists and Herpetologists | Copeia
gargarizans. Populations from eastern central China (Fukien) and western China (Szechwan), once synonymized with B. bankorensis, are described as B. g. popei. B. andrewsi Schmidt and B. b. wrighti Schmidt and Liu are tentatively treated as a distinct species, B. andrewsi. B. bankorensis Barbour from Taiwan is regarded as a valid species; it resembles the geographically remote B. andrewsi, but is completely distinct from adjacent populations of B. g. popei. B. minshanicus Stejneger and B. tibetanus ...
Tópico(s): Plant and animal studies
1986 - American Society of Ichthyologists and Herpetologists | Copeia
Terutake Hayashi, Masafumi Matsui,
Tópico(s): Morphological variations and asymmetry
1988 - Zoological Society of Japan | ZOOLOGICAL SCIENCE
A new microhylid, Kalophrynus yongi, is described from the Cameron Highlands of Peninsular Malaysia. Morphologically, the new species differs from all known congeners by having a very stout forelimb with a humeral spine in males. Acoustically, it resembles K. baluensis and K. heterochirus and sharply differs from K. interlineatus, K. pleurostigma, K. palmatissimus, and K. nubicola.
Tópico(s): Turtle Biology and Conservation
2009 - Zoological Society of Japan | ZOOLOGICAL SCIENCE
Masafumi Matsui, A Tominaga, Wanzhao Liu, Wichase Khonsue, L. Lee Grismer, Arvin C. Diesmos, Indraneil Das, Ahmad Sudin, Paul Yambun, Hoi-Sen Yong, Jeet Sukumaran, Rafe M. Brown,
We investigated the phylogenetic relationships and estimated the history of species diversification and biogeography in the bufonid genus Ansonia from Southeast Asia, a unique organism with tadpoles adapted to life in strong currents chiefly in montane regions and also in lowland rainforests. We estimated phylogenetic relationships among 32 named and unnamed taxa using 2461 bp sequences of the mitochondrial 12S rRNA, tRNAval, and 16S rRNA genes with equally-weighted parsimony, maximum likelihood, ...
Tópico(s): Genetic diversity and population structure
2009 - Elsevier BV | Molecular Phylogenetics and Evolution
Norihiro Kuraishi, Masafumi Matsui, Hidetoshi Ota,
We attempted to estimate the origin of the exotic frog Polypedates leucomystax in the Ryukyu Archipelago. This species was first found in 1964 just in front of the U.S. military base at Kadena on Okinawajima Island and currently has established feral populations on more than 20 islands. We conducted phylogenetic analyses using mitochondrial DNA sequences of the cytochrome b gene. Samples of P. leucomystax from five islands of the Ryukyus had a single haplotype, which was identical to that of a Philippine ...
Tópico(s): Genetic diversity and population structure
2009 - University of Hawaii Press | Pacific Science
A Tominaga, Hidetoshi Ota, Masafumi Matsui,
We investigated the phylogenetic relationships and phylogeography among individuals of the endemic newt (Cynops ensicauda) of the Central Ryukyus, Japan based on the mitochondrial cytochrome b gene. The results of phylogenetic analyses showed the presence of remarkable differentiation between assemblages from the Amami and Okinawa Island Groups, supporting the validity of the subspecies C. e. popei described from the latter on morphological grounds. The group of individuals from Okinawa Island Group ...
Tópico(s): Genomics and Phylogenetic Studies
2009 - Elsevier BV | Molecular Phylogenetics and Evolution
Masafumi Matsui, Daicus M. Belabut, Norhayati Ahmad, Hoi-Sen Yong,
A new megophryid species, Leptolalax kecil, is described from the Cameron Highlands of Peninsular Malaysia on the basis of acoustic and morphological characteristics.It has an advertisement call dissimilar to that of other, congeneric species, and is the smallest of the known Leptolalax.It is similar to L. pluvialis from Vietnam in small body size, but differs from it in ventral color, and in the size and color of the pectoral gland.The distributional pattern of the new species is discussed.
Tópico(s): Species Distribution and Climate Change
2009 - Zoological Society of Japan | ZOOLOGICAL SCIENCE
2n=24本の染色体をもつエゾアカガエル(北海道産)、ヤマアカガエル(本州、九州産)、チョウセンヤマアカガエル(対馬、ウスリー産)の系統分類学的関係を、形態学的・遺伝生化学的手法を用いて調査した。その結果、エゾアカガエルは形態的にも遺伝生化学的にも他の2種から明瞭に区別され、遺伝学的調査の結果を総合すると、3種のアカガエル類は共通祖先から3分岐したものと推定された。この結果と文献中にみられる交雑実験の結果とを考慮すると、エゾアカガエルは、ヤマアカガエル、チョウセンヤマアカガエルと別種として扱われるべきと判断される。さらに、しばしばエゾアカガエルと同一種とされる中国陜西省産のアカガエルは、文献資料からみる限り、形態的にエゾアカガエルと明瞭に区別され、分布の面からも両者が同一種である可能性は低いと考えられる。これらの事実に立脚して、北海道札幌産の雄個体に基づくエゾアカガエルを正式に記載し、新種名を与えた。本種は短い後肢をもつことで形態的に特徴づけられる。東アジア産で2n=24本の染色体をもつアカガエル類の関係について論じ、チョウセンヤマアカガエルの対馬産とウスリー産との間で、遺伝的分化がかなり進行していることも示唆した。
Tópico(s): Molecular Biology Techniques and Applications
1991 - | Japanese journal of herpetology
Hidetoshi Ota, Tsutomu Hikida, Masafumi Matsui, Akira Mori, Addison H. Wynn,
Abstract Morphological variation, the karyotype, and reproduction in the parthenogenetic blind snake (Ramphotyphlops braminus) were studied on the basis of a large sample from the Ryukyu Archipelago, Taiwan, and Saipan. Meristic and morphometric characters showed little geographic variation. The numbers of transverse scale rings and vertebrae, each somewhat variable within the sample, were significantly correlated with each other. The karyotype of specimens from the Ryukyu Archipelago and Taiwan ...
Tópico(s): Animal Behavior and Reproduction
1991 - Brill | Amphibia-Reptilia
Hidetoshi Ota, Tsutomu Hikida, Masafumi Matsui, Akira Mori,
SUMMARYCyrtodactylus consobrinus and C. pubisulcus collected from Sarawak, Malaysia, were karyotyped. These species showed distinct intrageneric differentiation in the diploid chromosome number (2n = 48 and 42, respectively). Chromosomal variation was also recognized within C. pubisulcus: animals collected from the eastern part of Sarawak had a pair of subtelocentric chromosomes among telocentric elements. Specimens from the western part lacked the subtelocentric pair, but had a pair of metacentric ...
Tópico(s): Genetic diversity and population structure
1992 - University of Florence | Caryologia
Jong‐Bum Kim, Mi‐Sook Min, Suh‐Yung Yang, Masafumi Matsui,
Allozyme analysis for 41 populations of brown frog species, Rana dybowskii, R. huanrenensis, and R. amurensis from Korea and three reference species (Chinese R. chensinensis and Japanese R. dybowskii and R. tsushimensis), were performed to clarify taxonomic status of Korean brown frogs. The level of average genetic differentiation (Nei's D) among local populations of each species in Korea was very low (D 0.370). In the genetic relationships among five species examined, the 24 chromosome brown frogs ( ...
Tópico(s): Molecular Biology Techniques and Applications
2002 - Zoological Society of Japan | ZOOLOGICAL SCIENCE
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. The oldest males and females were 9.8–9.9 and 5.8–5.9 yrs of age, respectively, and, therefore the longevity ...
Tópico(s): Animal Behavior and Reproduction
2002 - Zoological Society of Japan | ZOOLOGICAL SCIENCE
Hidetoshi Ota, Masanao Honda, Szu-Lung Chen, Tsutomu Hikida, Somsak Panha, Hong-Shik Oh, Masafumi Matsui,
Historical relationships were inferred for the oriental lizards of the genus Takydromus Daudin 1802 (Lacertidae) on the basis of DNA sequences. Of the 17 species currently recognized for the genus, 13 species represented by 42 specimens from 29 localities were examined. Maximum-likelihood and maximum-parsimony analyses of data for 829 aligned sites from parts of the mitochondrial 12S and 16S rRNA genes yielded relationships that, while showing no substantial discrepancy with each other, were strikingly ...
Tópico(s): Vector-borne infectious diseases
2002 - Oxford University Press | Biological Journal of the Linnean Society
Toshiaki Hirai, Masafumi Matsui,
tions of an insecticide with larval density and predation in experimental amphibian communities. Conservation Biology 15:228-238. . 2002. Interactions of an insecticide with competition and pond drying in amphibian communities. Ecological Applications 12:307-316. BOONE, M. D., C. M. BRIDGES, AND B. B. ROTHERMEL. 2001. Growth and development of larval green frogs (Rana clamitans) exposed to multiple doses of an insecticide. Oecologia 129:518-524. BRIDGES, C. M. 1997. Tadpole swimming performance and ...
Tópico(s): Species Distribution and Climate Change
2002 - The Society for the Study of Amphibians and Reptiles | Journal of Herpetology
Hiroshi Tsuji, Masafumi Matsui,
Annual Review of Ecology and Systematics 2:369404. . 1989. Should hindgut contents be included in lizard dietary compilations? Journal of Herpetology 23:455-458. SCHOLTZ, C. H., AND E. HOLM. 1986. Insects of southern Africa. Butterworths, Durban, South Africa. SKAIFE, S. H. 1979. African insect life. Rev. ed. Struik, Cape Town, South Africa. SOKAL, R. R., AND E J. ROHLF. 1981. Statistical tables. 2nd ed. Freeman and Co., San Francisco, CA. VITT, L. J., AND H. J. PRICE. 1982. Ecological and evolutionary ...
Tópico(s): Bat Biology and Ecology Studies
2002 - The Society for the Study of Amphibians and Reptiles | Journal of Herpetology
Yasuchika Misawa, Wichase Khonsue, Masafumi Matsui,
Abstract The age of a vulnerable frog, Rana porosa brevipoda from Japan was estimated using the now classical technique of skeletochronology. The mean age did not differ between the sexes but males were smaller in body size than females. Sexual maturity was attained in the fall of the year of metamorphosis in males and in the breeding season of the next year in females, and both sexes began to breed in the next year of metamorphosis. Both sexes similarly had minimum longevity of four years. The ...
Tópico(s): Animal Behavior and Reproduction
2002 - Brill | Amphibia-Reptilia