Amphibia-Reptilia最新文献_第4页

The gator grapnel: pedal anchoring in the American alligator (Alligator mississippiensis) 短吻鳄抓钩：美洲短吻鳄的脚踏锚定（密西西比短吻鳄）

IF 1.6 4区生物学

Amphibia-Reptilia Pub Date : 2023-05-23 DOI: 10.1163/15685381-bja10141

Collin Walter, M. Cramberg, B. Young

{"title":"The gator grapnel: pedal anchoring in the American alligator (Alligator mississippiensis)","authors":"Collin Walter, M. Cramberg, B. Young","doi":"10.1163/15685381-bja10141","DOIUrl":"https://doi.org/10.1163/15685381-bja10141","url":null,"abstract":"\u0000To resist forward displacement of their body during non-locomotor behaviors such as feeding, American alligators (Alligator mississippiensis) hold their hindfeet vertical, then push the foot into the substrate so that the dorsum of the foot forms a contact area with the substrate. Herein this form of bracing is termed pedal anchoring. The purpose of the present study was to describe pedal anchoring and to demonstrate whether it entailed interaction between the hindfoot (pes) of Alligator and the substrate that differed from the interactions seen during locomotion. Alligator tracks were studied in the wild, during controlled field trials, and on a mud trackway in the laboratory; in each setting locomotor and pedal anchoring tracks were photographed, cast in Plaster of Paris, then features of the casts quantified. Statistical analysis demonstrated greater variation in the wild tracks, presumably reflecting the larger size and velocity ranges of the alligators involved, and suggested that the mud trackway used during the locomotor trials did not create significant artifact. Tracks produced during locomotion and pedal anchoring by the same alligators, on the same substrate, yielded significantly different quantitative features, different matrices of Pearson correlation coefficients, and different patterns of character distribution following Principal Component Analysis. These results all support the conclusion that pedal anchoring involves fundamentally different interaction between the pes and the substrate than occurs during locomotion.","PeriodicalId":50799,"journal":{"name":"Amphibia-Reptilia","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47828491","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

An overview of parental care in the foam-nesting frogs of the genus Leptodactylus (Anura: Leptodactylidae): current knowledge and future directions 细趾蛙属泡沫巢蛙的父母照料概述（无尾目：细趾蛙科）：当前知识和未来方向

IF 1.6 4区生物学

Amphibia-Reptilia Pub Date : 2023-05-17 DOI: 10.1163/15685381-bja10140

J. C. Carrillo, D. Santana, C. Prado

引用次数: 0

Geographic peculiarities of structure and hemicloning reproduction of Pelophylax esculentus water frog complex (Anura, Ranidae) populations in the East European Plain within Ukraine 乌克兰境内东欧平原水蛙群结构和半克隆繁殖的地理特征

IF 1.6 4区生物学

Amphibia-Reptilia Pub Date : 2023-05-03 DOI: 10.1163/15685381-bja10136

S. Mezhzherin, S. Morozov-Leonov, O. Nekrasova, O. Rostovskaya

{"title":"Geographic peculiarities of structure and hemicloning reproduction of Pelophylax esculentus water frog complex (Anura, Ranidae) populations in the East European Plain within Ukraine","authors":"S. Mezhzherin, S. Morozov-Leonov, O. Nekrasova, O. Rostovskaya","doi":"10.1163/15685381-bja10136","DOIUrl":"https://doi.org/10.1163/15685381-bja10136","url":null,"abstract":"\u0000Geographic peculiarities of population structure and hemicloning reproduction of the water frog Pelophylax esculentus complex of 904 samples within southern East European Plain were analyzed. The proportion of populations of P. ridibundus is 0.667 against those 0.042 of P. lessonae. The RE-type populations are the most common among mixed ones (0.153). The colonies of the two parental species and P. kl. esculentus (REL-type), as well as those of P. lessonae with P. kl. esculentus (LE-type), have the frequencies 0.072 and 0.046, respectively. All-hybrid populations (E-type) are not numerous across the region (0.017). In the populations of Central, Northern and Western Ukraine, the P. lessonae genome is eliminated during gametogenesis within hybrids while in the Lower Dnieper and Lower Danube drainages, genome of P. ridibundus is eliminated. In the Eastern Ukraine populations, hybrids usually produce diploid gametes or haploid gametes with the P. ridibundus genome, less often with the chromosome set of P. lessonae only, and even more rarely a mixture of different types of gametes. The predominance of P. ridibundus in hybrid communities and the elimination of the P. lessonae genome in hybrids inevitably leads to the transformation of hybrid populations into “pure” R-type populations. This circumstance makes hybridization with P. ridibundus a factor in the shrinking of P. lessonae populations. That trend is especially expressed in the Forest steppe zone, where hybridization proceeds most intensively, the P. lessonae genome is eliminated in hybrids, and unstable populations with a numerical superiority of P. ridibundus predominate.","PeriodicalId":50799,"journal":{"name":"Amphibia-Reptilia","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47082392","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

Phylogenetic analysis of the critically endangered Karpathos water frog (Anura, Amphibia): conservation insights from complete mitochondrial genome sequencing 极度濒危的卡帕索斯水蛙（Anura，两栖纲）的系统发育分析：线粒体全基因组测序对保护的启示

IF 1.6 4区生物学

Amphibia-Reptilia Pub Date : 2023-05-02 DOI: 10.1163/15685381-bja10138

Elisavet-Aspasia Toli, Anastasios Bounas, A. Christopoulos, P. Pafilis, K. Sotiropoulos

{"title":"Phylogenetic analysis of the critically endangered Karpathos water frog (Anura, Amphibia): conservation insights from complete mitochondrial genome sequencing","authors":"Elisavet-Aspasia Toli, Anastasios Bounas, A. Christopoulos, P. Pafilis, K. Sotiropoulos","doi":"10.1163/15685381-bja10138","DOIUrl":"https://doi.org/10.1163/15685381-bja10138","url":null,"abstract":"\u0000The Karpathos water frog (Pelophylax cerigensis) is classified as Critically Endangered according to the IUCN Red List and its distribution is restricted on the island of Karpathos, South Aegean Sea. Utilizing a next generation sequencing approach, we obtained whole mitochondrial genomes of P. cerigensis to determine the species phylogenetic position within the genus Pelophylax and to clarify the phylogenetic relationship between the species’ population on Karpathos Island and the population of P. cf. bedriagae from the neighboring Rhodes Island. High-throughput sequencing generated mean ± SD = 227 945 ± 18 306 reads averaged per sample. High quality reads were assembled resulting in the complete mitogenome of P. cerigensis of a total size of 17 922 bp. Mitogenome organization was similar to other Pelophylax species, comprising of 13 Protein Coding Genes (PCGs), 22 tRNAs, two rRNAs and one Control Region. Overall mean genetic distance for the 13 PCGs, within the Ranidae family, ranged from 8.01% (COIII) to 11.6% (ATP8), while ratios of synonymous and non-synonymous substitutions were <1 in all the 13 PCGs, indicating purifying selection. Maximum Likelihood and Bayesian Inference analyses based on the concatenated sequences of 13 PCGs and two rRNAs (12S and 16S), showed that individuals from Karpathos and Rhodes form a well-supported monophyletic group with low genetic distance between them (p-distance = 0.1%). Hence, the Rhodes populations seem to belong to P. cerigensis and not to P. bedriagae as formerly thought, highlighting the need for revision of P. cerigensis current conservation status as well as further examination of the P. bedriagae species group.","PeriodicalId":50799,"journal":{"name":"Amphibia-Reptilia","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44542771","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

Defensive tail displays in dice snakes (Natrix tessellata) are influenced by colour morph and sex 骰子蛇(Natrix tessellata)的防御性尾巴显示受颜色变化和性别的影响

IF 1.6 4区生物学

Amphibia-Reptilia Pub Date : 2023-04-25 DOI: 10.1163/15685381-bja10135

Vukašin Bjelica, M. Milićević, Ana Lazić, Katarina Ðoković, A. Golubović

引用次数: 0

Knowledge gaps and conservation priorities for west African chelonians 西非车龙人的知识差距和保护重点

IF 1.6 4区生物学

Amphibia-Reptilia Pub Date : 2023-04-24 DOI: 10.1163/15685381-bja10137

P. McGovern, L. Luiselli

{"title":"Knowledge gaps and conservation priorities for west African chelonians","authors":"P. McGovern, L. Luiselli","doi":"10.1163/15685381-bja10137","DOIUrl":"https://doi.org/10.1163/15685381-bja10137","url":null,"abstract":"\u0000Defining priorities is important both in research and in conservation, especially when knowledge gaps are hindering successful management. In this review, we quantify the knowledge gaps for all non-marine West African chelonians based on 21 criteria. Additionally, we combine these knowledge gaps with each species’ maximum size, range size, presence in nationally protected areas, and IUCN Red List or TFTSG provisional status to introduce a ranking of species conservation priority in the region. Our analyses revealed a divergence between which species are lacking research studies and which would benefit most from conservation actions, though Cyclanorbis elegans is the species that is both the least-known and most-in-need of conservation. Broadly, Pelomedusidae are in the greatest need of research, yet they are also collectively the least threatened. Conversely, Trionychidae and Testudinidae have received greater research attention in most cases, however, these two families represent the greatest conservation priorities amongst West African chelonians. Our analyses also enabled us to evaluate which criteria representing aspects of chelonian biology have been most overlooked by the scientific community. Priorities for future research include reproductive and long-term population studies, each of which are critical for informing conservation actions and evaluating the results of those actions.","PeriodicalId":50799,"journal":{"name":"Amphibia-Reptilia","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48692714","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: 3

Remote sensing and citizen science to characterize the ecological niche of an endemic and endangered Costa Rican poison frog 遥感和公民科学表征一种地方病和濒危哥斯达黎加毒蛙的生态位

IF 1.6 4区生物学

Amphibia-Reptilia Pub Date : 2023-04-18 DOI: 10.1163/15685381-bja10134

Marina Garrido-Priego, David Aaragonés, H. C. Liedtke, A. Whitworth, I. Gomez‐Mestre

{"title":"Remote sensing and citizen science to characterize the ecological niche of an endemic and endangered Costa Rican poison frog","authors":"Marina Garrido-Priego, David Aaragonés, H. C. Liedtke, A. Whitworth, I. Gomez‐Mestre","doi":"10.1163/15685381-bja10134","DOIUrl":"https://doi.org/10.1163/15685381-bja10134","url":null,"abstract":"\u0000Habitat encroachment can have devastating effects upon biodiversity, especially amphibians. Phyllobates vittatus is an endemic frog from Costa Rica, where land cover has seen significant changes over recent decades. Here we use remote sensing to create a land cover map of the region and carry out ecological niche modelling to identify the main abiotic factors associated to the distribution of this species. We have informed our models based on our own field observations, those from other researchers, and citizen science participants to obtain a comprehensive database of P. vittatus occurrences. Elevation, forest percentage, distance to lakes and rivers, annual temperature range and precipitation variables were found to shape the ecological niche of P. vittatus, which is mostly located within protected areas. Prior knowledge of the habitat of the species was key to interpret the model output. We identify populations that might be isolated, and areas where presence has not yet been verified or that have not been occupied by the species, thus, identifying potential areas for reintroductions. We also calculated the area of occupancy and recommend that P. vittatus’ status be adjusted to “Endangered”. Future surveys and evaluation of population health and connectivity would help to better ensure the protection of the species in the long-term.","PeriodicalId":50799,"journal":{"name":"Amphibia-Reptilia","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42110701","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

Introduced Mediterranean painted frogs (Discoglossus pictus) are possible supershedders of the fungus Batrachochytrium dendrobatidis in Catalonia (NE Spain) 引入的地中海彩绘蛙（Discoglossus pictus）可能是加泰罗尼亚（西班牙东北部）树木蜡染菌Batrachochytrium dendrobatidis的超级宿主

IF 1.6 4区生物学

Amphibia-Reptilia Pub Date : 2023-04-03 DOI: 10.1163/15685381-bja10133

A. Martínez-Silvestre, Fernando Loras-Ortí, Alejandro Garcia-Salmeron, E. Pujol-Buxó, Iago Pérez-Novo, Joan Maluquer-Margalef, Santiago Poch, Barbora Thumsová, Jaime Bosch

引用次数: 0

Lack of refuge as a bottleneck for reptiles in intensive woody crops 缺乏避难所是爬行动物在密集木本作物中生存的瓶颈

IF 1.6 4区生物学

Amphibia-Reptilia Pub Date : 2023-03-31 DOI: 10.1163/15685381-bja10132

Marta Canós-Burguete, Mizar Torrijo-Salesa, F. S. Tortosa, J. Guerrero-Casado

{"title":"Lack of refuge as a bottleneck for reptiles in intensive woody crops","authors":"Marta Canós-Burguete, Mizar Torrijo-Salesa, F. S. Tortosa, J. Guerrero-Casado","doi":"10.1163/15685381-bja10132","DOIUrl":"https://doi.org/10.1163/15685381-bja10132","url":null,"abstract":"The lack of refuge has been suggested as one of the main factors affecting reptiles in intensive crops, but this theory has not been explored to any great extent. The aim of this work is to compare the reptile abundance and species richness between traditional and intensive vineyards and olive groves, and to test the acceptance of artificial shelter due to its scarcity in the new intensive woody crop. A total of 288 transects were carried out (144 in olive groves and 144 in vineyards) in six different types of plots: traditional olive groves, traditional vineyards, intensive olive groves with and without artificial refuge, and trellis vineyards with and without artificial refuge. The results showed a greater species richness and abundance of reptiles in the traditional plots than in the intensive plots (independently of the experimental refuges added). An important number of animals were observed using the artificial refuges in olive groves. Furthermore, most of the individuals were located on or escaped to old trees in traditional systems, including an important proportion of reptiles hidden in olive trunk cavities, whereas more individuals were observed on the ground in intensive systems. Our finding suggests the importance for reptile communities of the traditional agricultural systems due to the high availability of the refuge provided by old olive tree trunks and free-standing gobelet vineyards. Our results show that providing refuge may mitigate the negative effects of woody crops intensification on reptile communities.","PeriodicalId":50799,"journal":{"name":"Amphibia-Reptilia","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42211104","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

Evolutionary history drives the geographical distribution of dorsal patterns in the common wall lizard (Podarcis muralis) 进化历史推动了普通壁虎(Podarcis muralis)背部图案的地理分布

IF 1.6 4区生物学

Amphibia-Reptilia Pub Date : 2023-03-29 DOI: 10.1163/15685381-bja10131

Thomas Dadda, Federico Storniolo, M. Mangiacotti, S. Scali, M. Zuffi, R. Sacchi

{"title":"Evolutionary history drives the geographical distribution of dorsal patterns in the common wall lizard (Podarcis muralis)","authors":"Thomas Dadda, Federico Storniolo, M. Mangiacotti, S. Scali, M. Zuffi, R. Sacchi","doi":"10.1163/15685381-bja10131","DOIUrl":"https://doi.org/10.1163/15685381-bja10131","url":null,"abstract":"\u0000Melanin-based dorsal pattern polymorphisms are common in reptiles and generally evolve under the interaction between opposite selective pressures, notably thermal advantage in cold environments and background matching to avoid predation. When those pressures change over space and time, the relative frequencies of morphs can vary across the species range. However, no previous study has analysed the spatial patterns of variation of morphs under a phylogenetic perspective in addition to the adaptive responses to natural selection. In this study, we focused on the distributional patterns of the three dorsal morphs of Podarcis muralis at wide-range scale to assess how they associate with geography, climate, microhabitat, phylogeny and sexual dimorphism. By using open access data from iNaturalist, we assembled a dataset of 4096 georeferenced points with information on sex and morph. Data were analysed through Bayesian GLMs, and four alternative models were formulated depending on the specific factors affecting morphs’ frequency. The dorsal morphs are not randomly distributed in Europe, but follow clear geographic patterns, vary with altitude and habitats, show sex-specific trends, and correlate with the phylogenetic history of the species. When comparing models, the phylogenetic model always obtained the best performance, and no overlap with other models occurred, thus best explaining the distributional patterns of dorsal morphs. The evolutionary processes, in addition to present environmental pressures, can significantly affect local-scale microevolutionary adaptations, influencing the current distribution of dorsal phenotypes across the species range. More generally, results point out the importance of considering the evolutionary processes when analysing distributional patterns of polymorphisms.","PeriodicalId":50799,"journal":{"name":"Amphibia-Reptilia","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44382516","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