Basic and Applied Herpetology最新文献

The Mesoamerican giant toad (Rhinella horribilis) as bioindicator of vegetation degradation in a tropical forest 中美洲大蟾蜍（Rhinella horribilis）作为热带森林植被退化的生物指标

Basic and Applied Herpetology Pub Date : 2024-06-12 DOI: 10.11160/bah.273

Carmen Duque Amado, Rodrigo Megía-Palma

{"title":"The Mesoamerican giant toad (Rhinella horribilis) as bioindicator of vegetation degradation in a tropical forest","authors":"Carmen Duque Amado, Rodrigo Megía-Palma","doi":"10.11160/bah.273","DOIUrl":"https://doi.org/10.11160/bah.273","url":null,"abstract":"Identifying species that can serve as bioindicators of environmental quality is essential for monitoring the anthropogenic impact. Common and widespread species can be ideal bioindicators due to their abundance and easy monitoring, but a confirmation of their differential responses as a function of habitat perturbation is needed. Because amphibians are known as good bioindicators of environmental perturbation, we conducted this work to identify whether a common, generalist amphibian species, the Mesoamerican giant toad (Rhinella horribilis), could serve as a bioindicator of environmental degradation in a tropical forest. We sampled toads in two areas of tropical forest that differed in anthropogenic degradation (primary vs. secondary forest), establishing in each of these areas two sections of the same surface area but differing in substrate (grass vs. sand). We analyzed toad abundance, sex ratio, body length and condition, and the amount and distribution across the body of ectoparasites (ticks). We analyzed 59 toads that were infested with 503 ticks. Based on a multi-model inference approach, the results suggested that toads were more abundant and had lower body condition in the secondary than in the primary forest. In the secondary forest, females were proportionally less abundant than males. The tick loads responded to an interaction of the body area with either the forest type or the substrate, with increased occurrence of ticks in toads from secondary forests and from grass sections. The differences found between the primary and secondary forests in sex ratio, toad abundance, body condition, and tick load across body regions are consistent with previous studies in other less common species of amphibians and thus posit R. horribilis as a good bioindicator of anthropic disturbance in this tropical forest.","PeriodicalId":53521,"journal":{"name":"Basic and Applied Herpetology","volume":"2 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141354053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Barred, blotched or intermediate? A photographic-based survey on the spatial distribution of Vipera aspis phenotypes from central-southern Italy 条纹、斑点还是中间型？对意大利中南部蝰蛇表型空间分布的摄影调查

Basic and Applied Herpetology Pub Date : 2024-06-12 DOI: 10.11160/bah.288

Matteo Riccardo Di Nicola, Federico Storniolo, Anna Cerullo, F. Faraone

{"title":"Barred, blotched or intermediate? A photographic-based survey on the spatial distribution of Vipera aspis phenotypes from central-southern Italy","authors":"Matteo Riccardo Di Nicola, Federico Storniolo, Anna Cerullo, F. Faraone","doi":"10.11160/bah.288","DOIUrl":"https://doi.org/10.11160/bah.288","url":null,"abstract":"Variation in animal colouration, which holds ecological and evolutionary significance, is evident in snakes, including the polytypic and highly polymorphic asp viper Vipera aspis. This species, currently acknowledged with four subspecies, features three of them (V. a. aspis, V. a. francisciredi and V. a. hugyi) within the Italian territory, each displaying distinct dorsal patterns. Analysing 143 georeferenced photos from personal surveys and citizen science, the present study explores transition areas between V. a. francisciredi and V. a. hugyi, revealing the coexistence of three dorsal pattern phenotypes (i.e. francisciredi, hugyi, and intermediate) across central-southern Italy. The outcome of the work reveals occurrences of francisciredi phenotypes considerably beyond the southern limit indicated in recent literature. Remarkably, intermediate phenotypes cover a significant portion of southern Italy, including Apulia (three records), Basilicata (six records) and Campania (three records) regions, and overlapping with both hugyi and francisciredi ranges. These findings suggest asymmetrical gene flow from northern to southern populations, resembling patterns observed in other reptiles. The intricate distribution of colour phenotypes underscores the necessity for molecular investigations to comprehend the genetic context and evolutionary history of V. aspis populations from central-southern Italy.","PeriodicalId":53521,"journal":{"name":"Basic and Applied Herpetology","volume":"140 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141350913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reduction of amphibian roadkill by one-side barriers 通过单侧路障减少两栖动物在路上死亡的数量

Basic and Applied Herpetology Pub Date : 2024-04-05 DOI: 10.11160/bah.283

João Rato, Paulo Sá-Sousa

{"title":"Reduction of amphibian roadkill by one-side barriers","authors":"João Rato, Paulo Sá-Sousa","doi":"10.11160/bah.283","DOIUrl":"https://doi.org/10.11160/bah.283","url":null,"abstract":"Amphibians are the most affected vertebrates by roadkill. Often, to minimise this problem mitigation barriers are installed. While two-side barriers effectiveness is well described in the literature, one-side barriers are poorly studied. The present study aimed to evaluate the effectiveness of one-side barriers installed by LIFE LINES project along the EM535 road in south-east Portugal. Two types of one-side barriers (one permanent and another temporary one made from tarp) were monitored through road surveys. For each barrier, the influence of interaction between the period (before and after the barrier installation) and road sector (control-no barrier, permanent or temporary barrier installed) on the number of amphibians was evaluated. The result showed that, contrary to the temporary barrier, the permanent one-side barrier appeared to be effective. Thus, the ineffectiveness of the temporary barrier may be related to (i) the tarp material that allows some amphibians to escape, (ii) the presence of vegetation that goes over the top of the barrier, or (iii) increased fence-end effects due to its short length. Even though less effective than two-side barriers, one-side barriers could be installed when there is budget limitation in conservation projects or if land use conflicts exist. Given that our study was the first to evaluate the effectiveness of one-side barriers, we discuss the potential constrains that may have affected our results.","PeriodicalId":53521,"journal":{"name":"Basic and Applied Herpetology","volume":"66 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140736145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative acute toxicity of pesticides to tadpoles of a tropical anuran (Epipedobates anthonyi), a North American native anuran (Lithobates sphenocephalus) and a standard fish species 农药对热带无尾类（Epipedobates anthonyi）、北美本地无尾类（Lithobates sphenocephalus）和标准鱼种蝌蚪急性毒性的比较

Basic and Applied Herpetology Pub Date : 2024-02-19 DOI: 10.11160/bah.278

Scott Weir, Lennart Weltje

{"title":"Comparative acute toxicity of pesticides to tadpoles of a tropical anuran (Epipedobates anthonyi), a North American native anuran (Lithobates sphenocephalus) and a standard fish species","authors":"Scott Weir, Lennart Weltje","doi":"10.11160/bah.278","DOIUrl":"https://doi.org/10.11160/bah.278","url":null,"abstract":"Global amphibian declines have the highest incidence in tropical regions, but most of the ecotoxicological data on amphibians is collected on temperate northern hemisphere anuran species. We tested the hypothesis that tropical anuran larvae (Epipedobates anthonyi) would be more sensitive to pesticides than a North American native species (Lithobates sphenocephalus). For 12 pesticides, 96-hr range-finding acute toxicity tests were conducted to determine if mortality occurred at environmentally relevant levels. Based on those studies, two substances were selected for additional time-to-event analyses in both species as well as median lethal concentration (LC50) calculations. Time-to-event results indicated that the two species appear to be roughly equivalent in their sensitivity to the two tested pesticides. Significant differences between species were not consistent across concentrations for either the insecticide terbufos or the herbicide pendimethalin. The utility of LC50 data was mixed with one LC50 providing an arbitrarily large standard error around the LC50 precluding informative comparisons across species. However, standard LC50 methods allowed data collection that continues to contribute to our understanding of the protectiveness of fish as surrogates for anuran larvae. While our data set is limited, it appears that testing temperate species would be protective for tropical species in ecological risk assessments. Our data also support the continued use of fish as surrogates for amphibian larvae as none of the species were more sensitive to the tested pesticides than rainbow trout (Oncorhynchus mykiss), the standard sensitive fish species used for acute toxicity testing.","PeriodicalId":53521,"journal":{"name":"Basic and Applied Herpetology","volume":"11 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140450388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Is the Pyrenean newt (Calotriton asper) a thermoconformer? Cloacal and water temperature in two different thermal periods in a Pre-Pyrenean stream population 比利牛斯蝾螈（Calotriton asper）是恒温动物吗？一个前比利牛斯溪流种群在两个不同热时期的泄殖腔温度和水温

Basic and Applied Herpetology Pub Date : 2024-02-14 DOI: 10.11160/bah.274

Albert Montori

{"title":"Is the Pyrenean newt (Calotriton asper) a thermoconformer? Cloacal and water temperature in two different thermal periods in a Pre-Pyrenean stream population","authors":"Albert Montori","doi":"10.11160/bah.274","DOIUrl":"https://doi.org/10.11160/bah.274","url":null,"abstract":"In ectothermic animals, heat seems to be a determining factor because it influences many vital activities such as locomotion, the ability to escape, feeding, and reproduction, among others. In aquatic environments, physical characteristics of water prevent small ectotherms from thermoregulating and therefore it is expected that their body temperature remains similar to water temperature. Throughout its distribution and annual cycle, the Pyrenean newt (Calotriton asper) is exposed to a wide range of water temperatures that affect its biological and ecological traits like the standard metabolic rate, oxygen consumption, activity period and growth pattern. This study analyses the relationship between the cloacal and water temperatures in a Pre-Pyrenean population of C. asper in two periods with well differentiated water temperatures (July and September). The aims are to establish if there are differences between sexes in cloacal temperature, whether reproductive activity modifies cloacal temperature, and to analyse the degree of thermoconformity of the species. The results indicate that cloacal temperature depends on the water temperature, corroborating the idea that C. asper is mainly a thermoconformer, as it corresponds to an aquatic ectotherm. However, the cloacal temperature of newts was slightly higher than water temperature. In individuals in amplexus, cloacal temperature was significantly higher than in specimens that are not in this mating position, and in July, females showed much greater dispersion in cloacal temperature than males, which is probably related to spawning behaviour.","PeriodicalId":53521,"journal":{"name":"Basic and Applied Herpetology","volume":"1089 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140456580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Basic and Applied Herpetology Pub Date : 2023-02-06 DOI: 10.11160/bah.242

Vic F. Clement, Julia Edanackaparampil, Lisa Maria Schmitz, Rieke Schluckebier, Dennis RÃ¶dder

{"title":"Weather related detection probability of Lacerta agilis LINNAEUS, 1758 within the core range in Western Germany","authors":"Vic F. Clement, Julia Edanackaparampil, Lisa Maria Schmitz, Rieke Schluckebier, Dennis RÃ¶dder","doi":"10.11160/bah.242","DOIUrl":"https://doi.org/10.11160/bah.242","url":null,"abstract":"Weather conditions are important factors determining the activity, and consequently detection probability, of animals. Especially in ectotherms from temperate habitats, activity can vary strongly depending on weather. The sand lizard Lacerta agilis is a wide-ranging lizard that is often subject to environmental impact assessments due to its proximity to humans and prevalence as a candidate for compensatory measures according to the Flora and Fauna Habitat Directive of the European Union. Lacerta agilis has been studied extensively at certain edges of its distribution, but studies focusing on the core range have been rare. We use Bayesian models in order to identify the best explaining weather variables out of a large variety of available variables for a population of Lacerta agilis in western Germany. We furthermore depict their interactions with an easy-to-understand regression tree model. Sand lizards have shown to be more active during dry conditions with low windspeeds. They further are best found after sunny weather with temperatures around 20Â°C. Rainfall in the previous 24 hours also increases the detection probability. An unpruned regression tree reaffirms the results while giving concrete variable values and exploring how the values influence each other. Overall the method delivers a decision tree based on easy to obtain weather variables that allows for post- survey analysis and for determination of the best survey conditions.","PeriodicalId":53521,"journal":{"name":"Basic and Applied Herpetology","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72639266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The resilience of amphibians to wildfire is habitat dependent 两栖动物对野火的适应能力取决于栖息地

Basic and Applied Herpetology Pub Date : 2022-12-09 DOI: 10.11160/bah.244

B. Chergui, C. Ayres, X. Santos

{"title":"The resilience of amphibians to wildfire is habitat dependent","authors":"B. Chergui, C. Ayres, X. Santos","doi":"10.11160/bah.244","DOIUrl":"https://doi.org/10.11160/bah.244","url":null,"abstract":"Climate and socioeconomic factors are modifying fire regimes. In this scenario, some taxa such as amphibians may be increasingly vulnerable. However, knowledge concerning how amphibian species respond to wildfires is limited and information is puzzling, with studies reporting positive, negative or neutral responses. We examined amphibian species occurrence after a 1600-ha fire in a fire-active region located in the north-western Iberian Peninsula. This area is a biogeographical crossroad where Atlantic and Mediterranean amphibian species can coexist in the same ponds. We sampled 33 water points in native (mainly oak) and non-native (eucalyptus) forests. Water points were sampled in two different periods: just after the fire to report direct mortality (resistance to fire), and two years after the fire to evidence resilience. We examined the influence of forest type and fire occurrence on the number of amphibian species detected per point (species richness). Species richness per point varied both depending on forest type (i.e. higher richness in the native forest) and fire occurrence (i.e. more species at burnt points). The occurrence of Atlantic species did not change with fire at native forest points but declined in exotic forest points affected by fire. Mediterranean species richness was higher at native than exotic points, as the number of species increased in native burnt forests, benefiting from the open spaces cleared by the fire. This study identified the negative effect of eucalyptus plantations on amphibians and showed that the response of this taxon to fire is shaped by species-specific bioregion affinity.","PeriodicalId":53521,"journal":{"name":"Basic and Applied Herpetology","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82608709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The common midwife toad, Alytes obstetricans, is able to learn a simple task under an appetitive stimulus 普通的助产士蟾蜍，Alytes产科医生，能够在食欲刺激下学习简单的任务

Basic and Applied Herpetology Pub Date : 2022-12-07 DOI: 10.11160/bah.236

MÃriam Moreno-Orosa, J. Bosch

{"title":"The common midwife toad, Alytes obstetricans, is able to learn a simple task under an appetitive stimulus","authors":"MÃriam Moreno-Orosa, J. Bosch","doi":"10.11160/bah.236","DOIUrl":"https://doi.org/10.11160/bah.236","url":null,"abstract":"Studies of response learning of amphibians are scarce compared to other vertebrates. We conducted a simple experiment to evaluate response learning in a primitive anuran species, the common midwife toad (Alytes obstetricans) under an appetitive stimulus. We hypothesized that, despite the primitive character of the studied species, the animals would be able to rapidly associate a particular arm of a basic T-shaped experimental arena with the reward, and that the existing male parental care of the species would provide males greater cognitive abilities than females. The response obtained by 12 males and 13 females was statistically different than such expected by chance, suggesting a learning process. The sex of the animal, as well as the average time spent to select the correct choice, were key during the learning process. Contrary to expectations, females showed higher learning capacities than males, perhaps as a consequence of the elaborate mate selection process and the competition between females to access males in this group of amphibians. The obtained results indicate that a rapid learning capacity is highly conservative in the phylogeny, having evolved from early tetrapods to those existing today in reptiles, birds, and mammals.","PeriodicalId":53521,"journal":{"name":"Basic and Applied Herpetology","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87577180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Herpetology in Spain: a current overview through doctoral theses 西班牙爬虫学:通过博士论文的当前概述

Basic and Applied Herpetology Pub Date : 2022-06-28 DOI: 10.11160/bah.235

{"title":"Herpetology in Spain: a current overview through doctoral theses","authors":"Gisela MarÃn-Capuz, Javier MenÃ©ndez-BlÃ¡zquez","doi":"10.11160/bah.235","DOIUrl":"https://doi.org/10.11160/bah.235","url":null,"abstract":"This study summarizes the temporal variation, the relative contribution of each university, the research topics addressed, the taxonomic groups studied and the differences in author and its advisorsâ€™ gender in the 303 PhD theses on herpetology defended in Spain and gathered in TeseoÂ© and DialnetÂ© between 1977 and 2020. The number of theses defended per year is around 7 with an upward trend. Complutense and Autonomous University of Madrid universities hosted the highest number of theses, followed by Barcelona and Valencia universities. The most addressed topic was morphology, biometry and anatomy, followed by physiology and histology, genetics and habitat selection. The most studied herpetofauna orders were Squamata and Anura and the families most tackled were Lacertidae, followed by Ranidae and Salamandridae. The most addressed species were native to Spain and without protection status, as opposed to those that were non-native or with protection status. The study of invasive species is very poorly represented. The number of PhD theses defended by men is higher compared to those by women (1.43:1), however, both genders show an upward trend in the number of theses. The results represent an approximation of the development, trends and interests pursued by herpetological research in Spain.","PeriodicalId":53521,"journal":{"name":"Basic and Applied Herpetology","volume":"393 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80055767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An updated dichotomous key to the snakes of Europe 欧洲蛇的最新二分法

Basic and Applied Herpetology Pub Date : 2022-06-06 DOI: 10.11160/bah.238

M. D. Di Nicola, F. Faraone, Thomas Zabbia

引用次数: 2