Herpetozoa最新文献_第4页

Sexual dimorphism in postcloacal scales in the northern caiman lizard (Dracaena guianensis) 北凯门蜥蜴(Dracaena guianensis)腔后鳞片的Sexual二态性

4区生物学

Herpetozoa Pub Date : 2023-09-28 DOI: 10.3897/herpetozoa.36.e109056

Riccardo Antonini, Rupert Kainradl, Michaela Gumpenberger, Anton Weissenbacher, Doris Preininger

{"title":"Sexual dimorphism in postcloacal scales in the northern caiman lizard (Dracaena guianensis)","authors":"Riccardo Antonini, Rupert Kainradl, Michaela Gumpenberger, Anton Weissenbacher, Doris Preininger","doi":"10.3897/herpetozoa.36.e109056","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e109056","url":null,"abstract":"Morphological differences between males and females are common among reptiles. A particularly interesting sexually dimorphic feature whose function is largely unknown is the number and pattern of specific scales. Several lizard species possess an arrangement of centered scales near the cloacal region that differ between the sexes and can be used for sex determination. The presence of postcloacal buttons, sexually dimorphic postcloacal scales on both sides of the body, is an exclusive trait in the subfamily Tupinambinae and is only poorly documented. Here, we investigate postcloacal scales in northern caiman lizards ( Dracaena guianensis ) housed at the Vienna Zoo. For a period of two years, we documented scale patterns and performed morphometric measurements of individuals of different age classes. Caiman lizards were CT scanned to confirm the sexes. Males exhibit three raised postcloacal scales in a row behind the left and right leg, while females possess one or two large scales surrounded by several smaller scales. The study provides the first evidence that these scales can function as a reliable trait to distinguish the sexes regardless of age or reproductive status. The sexually dimorphic bilateral scale pattern is present immediately after hatching and does not change during development. Scales only increase in thickness and length during growth. We further demonstrate that sexual size dimorphism (SSD) exists in juveniles during ontogenetic development. Juvenile females had a larger SVL, body length, tail length and higher weight compared to juvenile males. This SSD could not be confirmed in adults, and sex determination based on SSD seems unreliable.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135388630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Snake shed skin consumed by Kinosternon vogti: a case of interspecific keratophagy 蛇的蜕皮吞噬Kinosternon vogti:种间角膜噬噬的一个案例

4区生物学

Herpetozoa Pub Date : 2023-09-19 DOI: 10.3897/herpetozoa.36.e109138

Fabio G. Cupul-Magaña, Nadin E. López-González, Ilse K. Barraza-Soltero, Torsten Blanck, Peter Praschag, Shannon Diruzzo, Taggert G. Butterfield, Armando H. Escobedo-Galván

引用次数: 0

Occurrence and tentative population status of the Balkan Terrapin (Mauremys rivulata, Valenciennes, 1833) on Greek islands 希腊岛屿上巴尔干龟(Mauremys rivulata, valencienne, 1833)的发生和种群现状

IF 0.9 4区生物学

Herpetozoa Pub Date : 2023-08-23 DOI: 10.3897/herpetozoa.36.e100533

M. Broggi

引用次数: 2

Occurrence and status of the European Pond Turtle, Emys orbicularis hellenica (Valenciennes, 1833), on Aegean and Ionian Islands (Greece, Turkey) Occurrence和欧洲池龟，Emys orbicularis hellenica(瓦伦西亚，1833年)在爱琴海和爱奥尼亚群岛(希腊，土耳其)的地位

IF 0.9 4区生物学

Herpetozoa Pub Date : 2023-08-23 DOI: 10.3897/herpetozoa.36.e106864

M. Broggi

引用次数: 0

Expanded description of Hemiphyllodactylus hongkongensis (Squamata, Gekkonidae)

IF 0.9 4区生物学

Herpetozoa Pub Date : 2023-08-17 DOI: 10.3897/herpetozoa.36.e106566

Xiang-Yi Li, Shi-Shi Lin, Zhao-Chi Zeng, Yan-Jun Sun, Jian Wang

引用次数: 0

A new cryptic species of Tylototriton (Amphibia, Caudata, Salamandridae) from mysterious mountain lakes in Manipur, north-eastern India A印度东北部曼尼普尔神秘山地湖泊中Tylototriton(两栖纲，尾纲，蝾螈科)的新隐种

IF 0.9 4区生物学

Herpetozoa Pub Date : 2023-08-14 DOI: 10.3897/herpetozoa.36.e106614

H. Decemson, H. Lalremsanga, Premjit Singh Elangbam, M. Vabeiryureilai, Parag Shinde, Jayaditya Purkayastha, D. V. Arkhipov, Andrey M. Bragin, N. Poyarkov

{"title":"A new cryptic species of Tylototriton (Amphibia, Caudata, Salamandridae) from mysterious mountain lakes in Manipur, north-eastern India","authors":"H. Decemson, H. Lalremsanga, Premjit Singh Elangbam, M. Vabeiryureilai, Parag Shinde, Jayaditya Purkayastha, D. V. Arkhipov, Andrey M. Bragin, N. Poyarkov","doi":"10.3897/herpetozoa.36.e106614","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e106614","url":null,"abstract":"An integrative taxonomic analysis combining molecular and morphological lines of evidence revealed a new cryptic species in the Tylototriton verrucosus species group from Manipur, north-eastern India. The new species was previously confused with T. himalayanus and T. verrucosus. Tylototriton zaimengsp. nov. can be distinguished from its congeners by medium body size, head massive and wide with rounded snout and very wide and protruding supratemporal bony ridges and a well-developed sagittal ridge, short limbs not overlapping when adpressed along body, wide and not segmented vertebral ridge distinct, 13–14 pairs of rib nodules, brown colouration with dull orange to yellowish-brown markings on head, vertebral ridge, rib nodules, palms, soles, vent and ventral tail ridge and by vomerine teeth organised in two distinctly curved bell-shaped series. Phylogenetic analysis of the ND2 and 16S rRNA mtDNA genes confirmed the placement of the new species to the Clade I of the subgenus Tylototriton and suggested it is a sister species of T. panwaensis and T. houi (p-distance 3.0% in ND2 gene). The range of the new species is restricted to the Khongtheng Mountain Range and is isolated from the range of T. panwaensis and T. houi in northern Myanmar and southern China, respectively. We suggest the new species to be considered as Vulnerable (VU) in the IUCN Red List.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41422078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Daily activities of water monitors (Varanus salvator macromaculatus Deraniyagala, 1944) in urban wetland, Bangkok, Thailand Daily泰国曼谷城市湿地水监测仪(Varanus salvator macromaculatus Deraniyagala, 1944)的活动

IF 0.9 4区生物学

Herpetozoa Pub Date : 2023-08-11 DOI: 10.3897/herpetozoa.36.e93492

P. Trivalairat, Sompod Srikosamatara

引用次数: 0

Resurrection and distribution extension of Odorrana heatwolei (Stuart & Bain, 2005) (Anura, Ranidae) Resurrection及其分布扩展(Stuart & Bain, 2005)(无尾目，蛙科)

IF 0.9 4区生物学

Herpetozoa Pub Date : 2023-07-19 DOI: 10.3897/herpetozoa.36.e106373

Shuo Liu, M. Hou, Qiaoyan Wang, D. Rao, Song Li

引用次数: 0

The current distribution and status of the Hermann’s tortoise, Testudo hermanni boettgeri (Reptilia, Testudines, Testudinidae) in Croatia Hermann’s龟，Testudo hermanni boettgeri（爬行纲，Testudines，Testudidae）在克罗地亚的分布和现状

IF 0.9 4区生物学

Herpetozoa Pub Date : 2023-07-06 DOI: 10.3897/herpetozoa.36.e103510

Katarina Koller Šarić, Boris Lauš, I. Burić, Ana Štih Koren, T. Koren

{"title":"The current distribution and status of the Hermann’s tortoise, Testudo hermanni boettgeri (Reptilia, Testudines, Testudinidae) in Croatia","authors":"Katarina Koller Šarić, Boris Lauš, I. Burić, Ana Štih Koren, T. Koren","doi":"10.3897/herpetozoa.36.e103510","DOIUrl":"https://doi.org/10.3897/herpetozoa.36.e103510","url":null,"abstract":"Hermann’s tortoise (Testudo hermanni) is listed as “Near threatened” in the IUCN Red list of endangered species. The importance of protecting the Hermann’s tortoise populations and its habitats have led to the inclusion of the species within CITES Convention (Annex II), Annex A of EU Wildlife Trade Regulation, Annex II of the Bern Convention and Annexes II and IV of the EU Habitats Directive. To assess the distribution and status of the eastern Hermann’s tortoise (Testudo hermanni boettgeri) in Croatia, historical and recent records were gathered and analyzed. The species was recorded in all three biogeographical regions in the country, but it’s native to the Mediterranean and a small part of the Alpine region. With the increase of recent surveys and the use of citizen science platforms, the known range of the species in Croatia was increased by 35.8% and is now encompassing 123 10 × 10 km EEA reference grid cells. Most records (66%) originate from lower elevations (up to 199 m), and the highest was recorded at 570 m. Sparse forests are the most preferred habitats, followed by semi-open habitats, such as grasslands and shrubs. The most serious threat to the species is natural succession due to the increased abandonment of traditional farming and grazing. Other threats include touristic infrastructure and urban development, transportation, illegal collecting, and invasive species. The Area of Occupancy calculated using 2 × 2 km grids resulted in an AOO of 1,372.00 km2, while Extent of Occurrence (EOO) is calculated to be 18,145.07 km2. The current network of National protected areas includes 14% of the species’ AOO while the designated Natura 2000 areas include 29.30% of its AOO. We propose to designate an additional 10 Natura 2000 areas to help with the long-term protection of the species.","PeriodicalId":49314,"journal":{"name":"Herpetozoa","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46163225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selection of substrate type, substrate color, and vegetation by tadpoles of Dryophytes plicatus 褶皱苔藓植物蝌蚪对基质类型、基质颜色和植被的选择

IF 0.9 4区生物学

Herpetozoa Pub Date : 2023-07-05 DOI: 10.3897/herpetozoa.36.e105332

Renato Sánchez-Sánchez, Olga Méndez-Méndez, Jazmín Hernández-Luría, Geoffrey R. Smith, J. Lemos‐Espinal

引用次数: 1