South American Journal of Herpetology最新文献_第6页

Detectability of Caiman latirostris (Crocodylia: Alligatoridae) in Night Count Surveys 夜间调查中鳄鱼科凯门鳄的可检出性

IF 0.9 4区生物学

South American Journal of Herpetology Pub Date : 2022-04-18 DOI: 10.2994/SAJH-D-19-00092.1

T. C. Portelinha, L. Verdade, C. Piña

{"title":"Detectability of Caiman latirostris (Crocodylia: Alligatoridae) in Night Count Surveys","authors":"T. C. Portelinha, L. Verdade, C. Piña","doi":"10.2994/SAJH-D-19-00092.1","DOIUrl":"https://doi.org/10.2994/SAJH-D-19-00092.1","url":null,"abstract":"Abstract. Night count surveys are one of the most used methods to study distribution and population parameters in crocodilians. However, there are some methodological constraints that prevent the visualization of animals submerged or hidden behind vegetation. We studied the proportion of caimans that were detectable to observers during night count surveys based on the monitoring of seven adult Caiman latirostris females with radio transmitters (VHF, GPS, and UHF). Fieldwork was carried out in a protected area with a natural stream and a lagoon (30°11′26″S, 61°00′27″W) between 12 January and 29 April 2011 in Santa Fe, Argentina. Only locations acquired at night (18:00–05:00) were considered for analysis, and those acquired within vegetation were considered potentially undetectable. As the lagoon is mostly covered with vegetation (e.g., cattail), most of the animals were not visible to observers (62.5–100%, average > 80%). In contrast, virtually all individuals (100%) were potentially visible in the stream. The use of data collected in telemetry studies can be useful to estimate detectability of cryptic species such as the broad-snouted caiman. An understanding of animal detectability is necessary, as counts of individuals is often used in decision-making for crocodilian conservation, sustainable use, and control.","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":"23 1","pages":"25 - 31"},"PeriodicalIF":0.9,"publicationDate":"2022-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44095409","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

The Advertisement Call of Pristimantis zophus (Lynch and Ardila-Robayo, 1999), an Endemic Rainfrog from Colombia (Anura, Strabomantidae) 哥伦比亚特有雨蛙(无尾目，雨蛙科)的广告呼唤(Lynch and Ardila-Robayo, 1999)

IF 0.9 4区生物学

South American Journal of Herpetology Pub Date : 2022-04-15 DOI: 10.2994/SAJH-D-20-00014.1

Eliza Patiño-Ocampo, Luisa María González-Garzón, Lina María Martinez-Toro, M. Rivera-Correa

引用次数: 0

Color Variation and Habitat Use in Liolaemus silvai 银油漆树的颜色变异及生境利用

IF 0.9 4区生物学

South American Journal of Herpetology Pub Date : 2021-12-31 DOI: 10.2994/SAJH-D-20-00015.1

Kaera L Utsumi, C. Staley, M. Eifler, H. Núñez, D. Eifler

{"title":"Color Variation and Habitat Use in Liolaemus silvai","authors":"Kaera L Utsumi, C. Staley, M. Eifler, H. Núñez, D. Eifler","doi":"10.2994/SAJH-D-20-00015.1","DOIUrl":"https://doi.org/10.2994/SAJH-D-20-00015.1","url":null,"abstract":"Abstract. Liolaemus is a species-rich genus endemic to South America with relatively little known about the biology of most of the > 200 included species. One species, L. silvai is common in the coastal Atacama Desert and is sexually dimorphic. We studied their phenotypic variation in color and body size, as well as habitat use by capturing lizards active on the surface. To assess phenotypic variation, we categorized the color morph of each lizard based on visible coloration in their ventral throat region and their ventral body from the shoulder girdle to the hips. We also sexed each lizard, measured snout–vent length and body mass, and recorded incidences of tail breakage. For habitat use we measured perch height, distance from the rock edge to nearest vegetation, and the height of the rocks on which lizards were initially sighted. We assessed habitat selection by comparing perch characteristics to features available in the habitat by pairing capture rocks with the nearest rock in a random direction from the initial perch site. Male L. silvai were significantly larger than females, but color morph and tail break frequency were independent of sex. Lizards used rocks that were significantly closer to vegetation than random rocks available in the environment independently of sex or color morph. We document the same pattern for perch height. Future studies are needed to examine the exact role of vegetation for L. silvai.","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":"21 1","pages":"80 - 84"},"PeriodicalIF":0.9,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41816175","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: 1

Two New Cryptic Pristimantis (Anura, Craugastoridae) from the Southern Amazon Basin of Peru with Taxonomic Comments on Pristimantis imitatrix (Duellman, 1978) 秘鲁亚马孙盆地南部两种新的隐生Pristimantis(无尾目，Craugastoridae)及对Pristimantis imitatrix的分类评论(Duellman, 1978)

IF 0.9 4区生物学

South American Journal of Herpetology Pub Date : 2021-12-31 DOI: 10.2994/SAJH-D-17-00068.1

H. M. Ortega-Andrade, J. Deichmann, J. C. Chaparro

{"title":"Two New Cryptic Pristimantis (Anura, Craugastoridae) from the Southern Amazon Basin of Peru with Taxonomic Comments on Pristimantis imitatrix (Duellman, 1978)","authors":"H. M. Ortega-Andrade, J. Deichmann, J. C. Chaparro","doi":"10.2994/SAJH-D-17-00068.1","DOIUrl":"https://doi.org/10.2994/SAJH-D-17-00068.1","url":null,"abstract":"Abstract. Fieldwork in premontane and lowland Amazonian forest (385–1,075 m above sea level) in and around the Amarakaeri Communal Reserve in southeastern Peru led us to describe two new species of the genus Pristimantis. We used integrative evidence from several external morphological characters, morphometric and molecular data, geographic distributions, and multivariate analyses to support the identification of these new species. Pristimantis gagliardi sp. nov. is characterized by lacking a visible tympanic annulus and membrane on skin, having basal webbing between toes, yellow blotches in groin and hidden surfaces of shanks, W-shaped scapular mark, snout subacuminate bearing a very small papilla at tip of snout, and snout–vent length (SVL) = 17.7–21.3 mm in adult males and SVL = 26.7–29.2 mm in females. Pristimantis okmoi sp. nov. is characterized by having a visible tympanic annulus and membrane on skin, basal webbing between toes, yellow blotches in groin and hidden surfaces of shanks, W-shaped scapular mark, snout rounded with small rostral papilla, and SVL = 13.63–17.04 mm in adult males; females unknown. Both species were initially misidentified as P. carvalhoi or P. imitatrix. Additionally, we provide new morphological and phylogenetic data on adult specimens of Pristimantis imitatrix, a rare Amazonian species described based on a single subadult female.","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":"21 1","pages":"41 - 64"},"PeriodicalIF":0.9,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69931667","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: 4

Cover and Masthead 盖子和刊头

IF 0.9 4区生物学

South American Journal of Herpetology Pub Date : 2021-12-31 DOI: 10.2994/sajh-21.1-00000.1

引用次数: 0

Natural History of the Mocha Island Ground Frog Eupsophus insularis, a Critically Endangered Species 极度濒危物种摩卡岛地蛙Eupsophus islandis的自然历史

IF 0.9 4区生物学

South American Journal of Herpetology Pub Date : 2021-12-31 DOI: 10.2994/SAJH-D-19-00102.1

G. Lobos, Nicolás Rebolledo, A. Charrier, Claudio Correa, Felipe E. Rabanal, Marcela A Vidal

引用次数: 1

The Brazilian Torrent Frog Controls Its Paired Vocal Sacs Independently: Implications for Acoustic Parameters 巴西激流蛙控制其成对的声囊独立:声学参数的含义

IF 0.9 4区生物学

South American Journal of Herpetology Pub Date : 2021-12-31 DOI: 10.2994/SAJH-D-19-00103.1

M. M. Struett, André E Confetti, Peterson T. Leivas

引用次数: 1

Cover and Masthead 盖子和刊头

IF 0.9 4区生物学

South American Journal of Herpetology Pub Date : 2021-12-15 DOI: 10.2994/sajh-22-00000.1

引用次数: 0

The Tadpoles of the Iron Quadrangle, Southeastern Brazil: A Baseline for Larval Knowledge and Anuran Conservation in a Diverse and Threatened Region 巴西东南部铁四边形的蝌蚪:在一个多样化和受威胁地区的幼虫知识和无尾蛙保护的基线

IF 0.9 4区生物学

South American Journal of Herpetology Pub Date : 2021-12-15 DOI: 10.2994/sajh-d-20-00042.1

T. Pezzuti, Felipe Sá Fortes Leite, D. Rossa-Feres, Paulo Christiano Anchietta Garcia

{"title":"The Tadpoles of the Iron Quadrangle, Southeastern Brazil: A Baseline for Larval Knowledge and Anuran Conservation in a Diverse and Threatened Region","authors":"T. Pezzuti, Felipe Sá Fortes Leite, D. Rossa-Feres, Paulo Christiano Anchietta Garcia","doi":"10.2994/sajh-d-20-00042.1","DOIUrl":"https://doi.org/10.2994/sajh-d-20-00042.1","url":null,"abstract":"Abstract. Knowledge of tadpole morphology and natural history is essential to understand and protect anuran diversity. We provide a regional taxonomic catalog of the tadpoles that occur in the Iron Quadrangle (IQ, Quadrilátero Ferrífero), a hotspot of amphibian diversity and highly threatened region in southeastern Brazil. Using a standardized methodology, free-living larvae of 67 species belonging to 25 genera and 11 families are described and illustrated, including photographs of most species in life, natural history notes, and taxonomic comments. Larvae of seven species and/or candidate species (viz., Fritziana aff. fissilis, Bokermannohyla gr. circumdata, Bokermannohyla aff. nanuzae, Pithecopus aff. rohdei, Scinax aff. machadoi, Scinax aff. perereca, and Scinax rogerioi) are described for the first time and compared to congeners. Most tadpoles of candidate species exhibited remarkable differences in morphology compared to closely related congeners, which could provide diagnostic characters for further formal descriptions. The observed material of many of the previously known tadpoles deviated from published descriptions, which might be useful in future taxonomic studies (e.g., providing characters for the taxonomic delimitation of either small-range species or widespread cryptic species complexes). Illustrated dichotomous and multi-access identification keys are presented, allowing most species to be readily identified using reliable characters. Considering the high-level threat and huge impacts on IQ's biodiversity and ecosystem services, particularly from mining, the results presented here provide an important foundation for research and conservation of anuran in this region. Finally, we stress that IQ harbors one of the most ecomorphologically diverse Brazilian tadpole assemblages.","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":"22 1","pages":"1 - 107"},"PeriodicalIF":0.9,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46842793","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: 5

Oldest Record of the Pit-Viper Bothrops (Squamata, Viperidae), from the Lower Pliocene of Buenos Aires Province, Argentina 阿根廷布宜诺斯艾利斯省下上新世坑蝰Bothrops最古老记录

IF 0.9 4区生物学

South American Journal of Herpetology Pub Date : 2021-11-16 DOI: 10.2994/SAJH-D-19-00109.1

A. Aranciaga-Rolando, F. Agnolín, A. Martinelli, Viviana E. Buide

引用次数: 0