著者

西川 完途

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2008, no.2, pp.104-104, 2008-09-30 (Released:2011-09-20)

著者

芹沢 孝子

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学雑誌 (ISSN:02853191)

巻号頁・発行日

vol.11, no.1, pp.11-19, 1985 (Released:2009-03-27)

参考文献数

3

被引用文献数

10

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前回の報告(芹沢,1983)では,冬眠からさめた直後に水があり,したがって産卵の開始が水の有無に影響されない場所でのダルマガエルとトノサマガエルの成長と産卵について,体長組成と卵巣の発達過程から推定した結果を述べた。しかしながら,今日では多くの水田は,農地改良によって乾田化が進み,機械植えが普及し,田植え時まで水が乏しい状態になっている。そこで今回は,このような場所でのダルマガエルRana brevipoda brevipodaとトノサマガエルR.nigromaculataの産卵様式を推定し,産卵開始時期に対する乾田化の影響について検討してみた。

著者

松井 正文

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2007, no.2, pp.156-158, 2007-09-30 (Released:2010-09-27)

参考文献数

6

著者

鳥羽 通久

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2002, no.2, pp.68-69, 2002-09-30 (Released:2010-06-28)

参考文献数

3

著者

小林 頼太 長谷川 雅美

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2005, no.2, pp.169-173, 2005-09-30 (Released:2010-06-28)

参考文献数

17

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Xenopus laevis, a frog commercially traded as a laboratory and pet animal, was first recorded in the wild at four localities in the Kanto plain, central Japan. Frogs found in the Tonegawa River might be a feral population established in the past decade because several X. laevis have been collected intermittently since the late 1990's. It is uncertain, however, whether Xenopus found at three other localities (Hasuike Pond in Fujisawa City, Inbanuma Pond in Shisui Town, and A ditch in Nagara Town) have established feral populations because there are few or no subsequent capture records since the first record at each locality.

著者

大野 正男

出版者

日本爬虫両棲類学会

雑誌

爬蟲兩棲類學雑誌 (ISSN:02853191)

巻号頁・発行日

vol.3, no.1, pp.5-7, 1968-06-20 (Released:2009-03-27)

参考文献数

5

---

In 1967, the author conducted a herpetolog cal survey of the islands of Niijima, Shikinejima, and Kozushima, which belong to the Izu island chain of Japan.The harpetological fauna of thes islands is very poor, and no amphibians occur, but the author confirmed the occurrence of 4 species of reptiles belonging to 3 families, as listed below.Colubridae1. Elaphe quadrivirgata (Boie, 1826) (Niijima, Kozushima).2. Elaphe climacophora (Boie, 1826) (Niijima, Kozushima).Scincdae3. Eumeces okadae Stejneger, 1907 (Niijima, Shikinejima, Kozushima).Lacertidae4. Takydromus tachydromoides (Schlegel, 1838) (Kozushima).

著者

森 哲 大庭 伸也

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2004, no.2, pp.78-81, 2004-09-30 (Released:2010-06-28)

参考文献数

9

著者

佐々木 清 白倉 史子 佐々木 義徳

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2007, no.2, pp.132-135, 2007-09-30 (Released:2010-09-27)

参考文献数

3

著者

千石 正一

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2002, no.2, pp.93-97, 2002-09-30 (Released:2010-06-28)

参考文献数

6

著者

倉本 満 石川 英孝

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2000, no.1, pp.7-18, 2000-03-31 (Released:2010-06-28)

参考文献数

16

著者

中川 光 草野 保

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2007, no.1, pp.1-5, 2007-03-31 (Released:2010-06-28)

参考文献数

9

被引用文献数

1

著者

太田 英利 藤井 亮 岡本 卓 疋田 努

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2004, no.2, pp.128-137, 2004-09-30 (Released:2010-06-28)

参考文献数

29

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Two reptiles, Mauremys mutica kami and Hemiphyllodactylus typus typus, are newly recorded from Haterumajima, the southernmost island of the Yaeyama Group, southern Ryukyus, on the basis of voucher specimens. Of these, M. m. kami was found in large number, and this strongly suggests that this freshwater turtle has already established a breeding population on this island. With respect to H. t. typus, only one individual, juvenile female, was found. However, considering possible parthenogenetic nature of its East Asian assemblages, this gecko may have also established on this island already. Besides these new records, our survey yielded additional specimens of Lepidodactylus lugubris, another parthenogenetic gecko non-native to Haterumajim Island. Characteristics of the dorsal pattern in these specimens indicate that the Haterumajima assemblage belongs to so-called “clone C” like assemblages of this gecko from all other islands of the Ryukyus exclusive of the Daito Group. Records of reptile species from this island are reviewed and problems requiring future investigations are clarified.

著者

岩澤 久彰 二上 順子

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学雑誌 (ISSN:02853191)

巻号頁・発行日

vol.14, no.3, pp.129-142, 1992-06-30 (Released:2009-03-27)

参考文献数

18

被引用文献数

11

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Male and female specimens of Hyla japonica were collected from a paddy field in a suburb of Niigata City in the breeding season (May), and naturally spawned eggs were obtained in the laboratory. The eggs were ca. 1.3mm in diameter. The eggs and embryos were reared under a constant temperature of 24C, which is the average water temperature in the paddy field in this period. 4.4 days after fertilization, the formation of the operculum was completed, and the larvae began feeding. Thereafter the larvae were reared at room temperature (24-29C). They were fed a commercial diet for goldfish. The larvae of this species are a nektonic type in external appearance, and the labial teeth formula is 1:1+1/3. Under the present rearing conditions, the total length of full-grown larvae was 47mm on the average. The larvae metamorphosed at the age of 32 days, and the body length of newly metamorphosed frogs was 14.5mm on the average. According to Gosner's table (1960), the process of development from just after spawning till the completion of metamorphosis is divided into 46 stages. The external characteristics in each stage are described in tabular form in English, and illustrated with sketches.

著者

伊藤 寿茂

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2007, no.2, pp.127-128, 2007-09-30 (Released:2010-09-27)

参考文献数

4

被引用文献数

2

---

Rana porosa porosa wintering in a U-shaped concrete ditch along a paddy field were observated at Oba, Fujisawa City, Kanagawa Pref., central Japan. There was a little mud and dry grass in the ditch. When a concrete block in the ditch was lifted, the frog dug into the substrate and crouched there.

著者

田中 幸治 森 哲

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2000, no.2, pp.88-98, 2000-10-10 (Released:2010-06-28)

参考文献数

1

著者

LOVICH JEFFREY E. PUFFER SHELLIE R. AGHA MICKEY ENNEN JOSHUA R. MEYER-WILKINS KATHIE TENNANT LAURA A. SMITH AMANDA L. ARUNDEL TERENCE R. BRUNDIGE KATHLEEN D. VAMSTAD MICHAEL S.

出版者

日本爬虫両棲類学会

雑誌

Current herpetology (ISSN:13455834)

巻号頁・発行日

vol.37, no.1, pp.40-57, 2018

被引用文献数

3

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<p>Agassiz's desert tortoise (<i>Gopherus agassizii</i>) reaches the southern edge of its range in the Sonoran Desert of California. The reproductive ecology of this wide-ranging species is understudied here compared to populations in the adjacent Mojave Desert. Understanding potential geographic variation in reproductive ecology is important for effective management of conservation-reliant species like <i>G. agassizii</i>. We studied the fecundity and clutch phenology of female <i>G. agassizii</i> at two study sites in the Sonoran Desert region of Joshua Tree National Park over five years (1997–1999–2015–2016) spanning two of the strongest El Niño events on record and an epic drought. Across all years, mean clutch size was 4.3±1.5 eggs, mean clutch frequency was 1.78 clutches/female/year, and mean X-ray egg width was 36.51±1.56 mm, all of which are comparable to other published studies both in the Sonoran and Mojave deserts of California. Our results generally support earlier published findings that <i>G. agassizii</i> utilize a bet-hedging strategy of consistently producing small clutches almost every year, even during times of low annual primary productivity. A regionally warmer climate in the Sonoran Desert of California appears to have an effect on the timing of egg production, as the earliest dates of egg visibility in our study (April 6) were approximately two weeks earlier than the earliest dates reported for <i>G. agassizii</i> in the Mojave Desert. Shelled eggs were no longer visible in tortoises after mid-June in all years but the El Niño year 1998, when eggs were visible until mid-July.</p>

著者

深田 祝 石原 重厚

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学雑誌 (ISSN:02853191)

巻号頁・発行日

vol.5, no.1, pp.14-14, 1972-07-30 (Released:2009-03-27)

著者

Natsuhiko YOSHIKAWA

出版者

日本爬虫両棲類学会

雑誌

Current Herpetology (ISSN:13455834)

巻号頁・発行日

vol.35, no.1, pp.69-72, 2016 (Released:2016-02-26)

参考文献数

8

被引用文献数

1

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Antipredator behavior of Cynops pyrrhogaster was observed in the field. A male, found in a temporal pool (11.7C), tightly coiled his body around the observer’s finger (putative model of predator) when he was touched from lateral side. The body-coiling was formed both dextrally and sinistrally, depending on direction from which the newt’s body was touched. Undulation of tail and noxious secretion accompanied the behavior. The coiling-around behavior was aborted immediately when the newt lost physical contact with finger. Apart from this, pushing on the head with a finger caused Unken reflex, which is commonly known as defensive behavior of newts. It is suggested that C. pyrrhogaster varies their defensive behavior depending on the situation of encounter with the predator.

著者

小林 朋道

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学会報 (ISSN:13455826)

巻号頁・発行日

vol.2007, no.2, pp.120-126, 2007-09-30 (Released:2010-09-27)

参考文献数

24

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2005年8月および9月に, 鳥取県と兵庫県にまたがる氷ノ山 (標高1510m) の頂上付近の登山道で, 雌のアカハライモリ Cynpos pyrrrhogaste 2匹発見した.発見場所の近くには水場はなく, 最も近い水場 (谷川の水源地および湿地沼) でも, 1km近く離れていた.いずれのイモリも, 四肢や指の形態, 体表の状況, 行動などに, 平地の水場で見られるイモリとは異なった, 陸上活動への影響と推察される特徴が見られた.例数は少ないが, アカハライモリは, ブナ林のような腐植層が発達した陸地であれば長期間生きていけるという可能性, また, 雌は繁殖水場を離れ, かなり遠くまで移動する性質があるという可能性を示唆する事例である.

著者

五十川 清 守屋 明 三井 貞明

出版者

日本爬虫両棲類学会

雑誌

爬虫両棲類学雑誌 (ISSN:02853191)

巻号頁・発行日

vol.15, no.3, pp.101-111, 1994-06-30 (Released:2009-03-27)

参考文献数

25

被引用文献数

6

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長崎県対馬のマムシの形態を精査し,日本本土産のニホンマムシ(Agkistrodon blomhoffii blomhoffii),中国産のタイリクマムシ(A. blomhoffii brevicaudus)及び韓国産のウスリーマムシ(A.ussuriensis)と比較した.その結果,対馬のマムシはそれらとは形態的に著しく異なることがわかり,新種(Agkistrodon tsushimaensis sp. nov.ツシママムシ)として記載された.また,この新種を含めた近縁種間の検索表を付記した.