{"title":"Cover and Masthead","authors":"","doi":"10.2994/sajh-30-00000.1","DOIUrl":"https://doi.org/10.2994/sajh-30-00000.1","url":null,"abstract":"","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141003539","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}
Pub Date : 2024-03-22DOI: 10.2994/sajh-d-22-00009.1
Wagner Chaves-Acuña, Emilia Moreno, J. A. Salazar-Zúñiga, Federico Bolaños
{"title":"Acoustics Associated with Paternal Care and Territorial Behaviors in a Glassfrog with Prolonged Egg-Attendance","authors":"Wagner Chaves-Acuña, Emilia Moreno, J. A. Salazar-Zúñiga, Federico Bolaños","doi":"10.2994/sajh-d-22-00009.1","DOIUrl":"https://doi.org/10.2994/sajh-d-22-00009.1","url":null,"abstract":"","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140387795","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}
Pub Date : 2024-03-22DOI: 10.2994/sajh-d-21-00051.1
E. Palumbo, Andrea Servián, M. Cassano, Julia Inés Diaz
{"title":"Camallanine Nematodes Parasitizing Endangered Freshwater Turtles from South America, with the Description of Two New Species","authors":"E. Palumbo, Andrea Servián, M. Cassano, Julia Inés Diaz","doi":"10.2994/sajh-d-21-00051.1","DOIUrl":"https://doi.org/10.2994/sajh-d-21-00051.1","url":null,"abstract":"","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140387680","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}
Pub Date : 2024-03-01DOI: 10.2994/sajh-d-22-00014.1
A. Laspiur, Jesús E. Pizarro, André L.G. Carvalho, Cristian S. Abdala
{"title":"Multiple Sources of Evidence Reveal That Liolaemus cinereus Monguillot et al., 2006 is a Synonym of L. montanezi Cabrera and Monguillot, 2006","authors":"A. Laspiur, Jesús E. Pizarro, André L.G. Carvalho, Cristian S. Abdala","doi":"10.2994/sajh-d-22-00014.1","DOIUrl":"https://doi.org/10.2994/sajh-d-22-00014.1","url":null,"abstract":"","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140278809","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}
Pub Date : 2024-03-01DOI: 10.2994/sajh-d-21-00029.1
Mario Penna, Nelson A Velásquez, Rafael Márquez, Jaime Bosch
{"title":"Auditory Sensitivity in Primitive Anurans of the Genus Discoglossus","authors":"Mario Penna, Nelson A Velásquez, Rafael Márquez, Jaime Bosch","doi":"10.2994/sajh-d-21-00029.1","DOIUrl":"https://doi.org/10.2994/sajh-d-21-00029.1","url":null,"abstract":"","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140278851","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}
{"title":"Cover and Masthead","authors":"","doi":"10.2994/sajh-29-00000.1","DOIUrl":"https://doi.org/10.2994/sajh-29-00000.1","url":null,"abstract":"","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139347346","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}
Pub Date : 2023-12-20DOI: 10.2994/sajh-d-21-00003.1
M. V. Yermokhin, V. Tabachishin
{"title":"Environmental Predictors of the Onset of Spawning Migration in Pelobates vespertinus (Anura: Pelobatidae)","authors":"M. V. Yermokhin, V. Tabachishin","doi":"10.2994/sajh-d-21-00003.1","DOIUrl":"https://doi.org/10.2994/sajh-d-21-00003.1","url":null,"abstract":"","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138954507","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}
{"title":"Cover and Masthead","authors":"","doi":"10.2994/sajh-28-00000.1","DOIUrl":"https://doi.org/10.2994/sajh-28-00000.1","url":null,"abstract":"","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48798038","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}
Pub Date : 2023-08-31DOI: 10.2994/SAJH-D-21-00046.1
D. O. Di Pietro, I. Berkunsky, D. G. Vera, M. A. Velasco, G. Tettamanti, Mario R. Cabrera, J. Williams, F. Kacoliris
Abstract. We analyzed the spatial distribution of the narrow-range and threatened reptiles from the Pampas grassland, a region with high human influence in east-central Argentina. We used field-collected and museum specimens combined with high-resolution environmental variables to recognize common distributional patterns and the variables that best explain them, estimate the suitable habitat for each species, identify conservation priority areas, and finally propose management and conservation priorities related to the current protected areas. Distribution models diverged into two distributional patterns for the narrow-range species: suitable habitat for most species in highland grasslands of the montane environment, and suitable habitat for Liolaemus multimaculatus in the grassland of the coastal dunes. Growing degree-days was the most informative environmental variable for constructing the distribution models, followed by annual potential evapotranspiration, and temperature seasonality. We proposed priority areas on the basis of two different conservation algorithms: the additive benefit function, which favors the montane and sandy environments, prioritizing areas with high richness of narrow-range species, and the core-area zonation, which prioritizes the occurrence of all biodiversity features, further indicating fragmented areas in the surroundings with low human influence index, but lacking the studied species. Regardless of the algorithm used, our results showed that the existing protected areas in the region are inadequate to protect the narrow-range reptiles. Protecting at least 5% of the priority areas with higher conservation values and considering the cost of the human influence index, the protected areas represented only 12.75% of these priority areas. Therefore, we identified the main management strategies to increase the representativeness of priority areas. Our findings are largely consistent with previous reports in the Neotropical region, highlighting the need to assign a larger area for conservation purposes. Resumen. Analizamos la distribución espacial de los reptiles amenazados y de distribución reducida del pastizal Pampeano, una región con elevada influencia humana en el centro-este de la Argentina. Usamos ejemplares colectados en campo y de museos combinados con variables ambientales de alta resolución para reconocer patrones de distribución comunes y las variables que mejor los explican, estimar el hábitat adecuado para cada especie, identificar las áreas prioritarias de conservación y finalmente proporcionar una prioridad de conservación y manejo relacionada con las áreas protegidas actuales. Los modelos de distribución divergieron en dos patrones de distribución según las especies de distribución reducida: hábitat adecuado para la mayoría de las especies en los pastizales de altura del ambiente serrano, y hábitat adecuado para Liolaemus multimaculatus en los pastizales de las dunas costeras. El grado-días de desarrollo
摘要本文分析了阿根廷中东部潘帕斯草原窄幅濒危爬行动物的空间分布特征。潘帕斯草原是人类活动影响较大的地区。我们利用野外采集和博物馆标本，结合高分辨率环境变量，识别了常见的分布模式和最能解释这些分布模式的变量，估计了每种物种的适宜栖息地，确定了保护重点区域，最后提出了与当前保护区相关的管理和保护重点。窄范围种的分布模式分化为两种分布模式:山地环境的高原草原适合大多数种的生境，沿海沙丘草原适合多毛柳的生境。生长日数是构建分布模型信息量最大的环境变量，年潜在蒸散量次之，温度季节性次之。我们基于两种不同的保护算法提出了优先区域:加性效益函数，有利于山地和沙质环境，优先考虑窄范围物种丰富度高的区域;核心区域区划，优先考虑所有生物多样性特征的发生，进一步表明环境中人类影响指数低，但缺乏研究物种的破碎区域。无论使用何种算法，我们的结果表明，该地区现有的保护区不足以保护窄范围爬行动物。至少保护5%具有较高保育价值的优先地区，并考虑到人类影响指数的成本，受保护地区只占这些优先地区的12.75%。因此，我们确定了增加优先领域代表性的主要管理策略。我们的发现与之前在新热带地区的报告基本一致，强调了为保护目的分配更大区域的必要性。Resumen。网址:网址:网址:distribución阿根廷爬行动物保护中心和网址:distribución阿根廷野生动物保护中心，网址:región阿根廷人类传染病防治中心。Usamos ejemplares collectados en campo通过museos combinados convariables ambientales de alta resolución para reconocer patronones de distribución comcomes通过variables que major los explica, estimestimel el hábitat adecuado para cada特别是，identified las áreas priorities de conservación通过finfinente proporciar una priorities de conservación通过manejo relatitionada conlas áreas protegidas actuales。Los modelos de distribución divergieron en dos patronones de distribución según las species de distribución reducida: hábitat adecuado para a mayoría de las species es es Los pastizales de altura del ambiente serrano, y hábitat adecuado para Liolaemus multimaculatus en Los pastizales de las dunas costas。El grado-días de desarrollo fute la variable ambiental más informativa para la construcción delos modelos de distribución, seguida de la evapotranspiración潜在的年度气候变化。Propusimos地区prioritarias basadas en dos algoritmos de conservacion不同:脂肪酸de beneficio aditivo,问favorece洛杉矶周围椒y de dunas priorizando领域初步alta riqueza de especies de distribucion reducida, y la zonificacion德尔地区而言,是prioriza la ocurrencia de所有las caracteristicas de la biodiversidad indicando除了地区fragmentadas en洛终于alrededores con指数de influencia胡玛纳,佩罗,carecen de las especies estudiadas。独立的利用算法，新结果显示，当áreas protegidas existentes en la región没有足够的para proteprotees和loloreptiles de distribución reducida时，它们是不存在的。Protegiendo al menos el 5% de las áreas优先考虑事项conservación，考虑到el成本del índice人类流行性疾病，las áreas protegias代表单独el 12,75% de estas áreas优先考虑事项。在此基础上，确定原则、战略、管理、代表和优先事项。Nuestros hallazgos son en gran parte与之前的工作室一致región Neotropical, destacando la necesidad de asignar un área más grande para propósitos de conservación。
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Pub Date : 2023-08-31DOI: 10.2994/SAJH-D-22-00022.1
J. A. Rivas
Abstract. Capital breeders are animals that breed with the stored energy they have gathered prior to the reproductive event. The amount of energy stored by a given individual can be quantified using morphological measurements and estimating a condition index that can help study the reproductive biology of wild-caught animals. Several condition indices have been used to study the biology and natural history of snakes, with the residual of the log-transformed data being one of the most popular. Here, I develop a simple condition index that assumes that the animals do not change shape throughout life except for changes in condition. This condition with isometry assumption (CIA) is unbiased for all size classes and simple to calculate. With data of animals whose breeding condition was known, I determine a cutoff of 0.875. Animals with a higher condition had a high chance of breeding, while those with lower condition did not. This method correctly predicts the breeding status of 94% of the observations. Using the same data set, I tested the residuals of the log-transformed regression and found far worse results. The CIA was also able to predict breeding status in other snakes opportunistically found in the study. The fact that it is possible to reliably predict the breeding status of anacondas based on their condition confirms that anacondas are capital breeders.
{"title":"Determining Breeding Status in Green Anacondas (Eunectes murinus): A Condition Index Assuming Isometry","authors":"J. A. Rivas","doi":"10.2994/SAJH-D-22-00022.1","DOIUrl":"https://doi.org/10.2994/SAJH-D-22-00022.1","url":null,"abstract":"Abstract. Capital breeders are animals that breed with the stored energy they have gathered prior to the reproductive event. The amount of energy stored by a given individual can be quantified using morphological measurements and estimating a condition index that can help study the reproductive biology of wild-caught animals. Several condition indices have been used to study the biology and natural history of snakes, with the residual of the log-transformed data being one of the most popular. Here, I develop a simple condition index that assumes that the animals do not change shape throughout life except for changes in condition. This condition with isometry assumption (CIA) is unbiased for all size classes and simple to calculate. With data of animals whose breeding condition was known, I determine a cutoff of 0.875. Animals with a higher condition had a high chance of breeding, while those with lower condition did not. This method correctly predicts the breeding status of 94% of the observations. Using the same data set, I tested the residuals of the log-transformed regression and found far worse results. The CIA was also able to predict breeding status in other snakes opportunistically found in the study. The fact that it is possible to reliably predict the breeding status of anacondas based on their condition confirms that anacondas are capital breeders.","PeriodicalId":48691,"journal":{"name":"South American Journal of Herpetology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49109506","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}
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