Zoological Journal of the Linnean Society最新文献

A genome-skimming phylogeny of ctenostome bryozoans 栉齿苔藓虫的基因组扫描系统发育

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-10 DOI: 10.1093/zoolinnean/zlaf060

Andrea Waeschenbach, Zichen Zhou, Thomas Schwaha, Beth Okamura, Dennis P Gordon, Timothy S Wood, Andrew N Ostrovsky, Jonathan A Todd, Sebastian H Decker, Mildred Johnson, Marwa Mohammed Al-Ghanem, Hans De Blauwe, Wayne K Florence, Rachael Graham, Andrea Hall, Hanna Hartikainen, Helen L Jenkins, Piotr Kukliński, Joanne S Porter, Abigail M Smith, Mary E Spencer Jones

{"title":"A genome-skimming phylogeny of ctenostome bryozoans","authors":"Andrea Waeschenbach, Zichen Zhou, Thomas Schwaha, Beth Okamura, Dennis P Gordon, Timothy S Wood, Andrew N Ostrovsky, Jonathan A Todd, Sebastian H Decker, Mildred Johnson, Marwa Mohammed Al-Ghanem, Hans De Blauwe, Wayne K Florence, Rachael Graham, Andrea Hall, Hanna Hartikainen, Helen L Jenkins, Piotr Kukliński, Joanne S Porter, Abigail M Smith, Mary E Spencer Jones","doi":"10.1093/zoolinnean/zlaf060","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf060","url":null,"abstract":"Ctenostome bryozoans pose ongoing challenges for taxonomists and systematists, owing to their lack of character-rich mineralized skeletons. We present the largest (super)family-level phylogeny of Ctenostomatida to date. We resolved the three major clades (A–C) that were recognized previously. Clade A included endolithic taxa Penetrantiidae, Immergentiidae, and Terebripora ramosa, the latter two being sister taxa. Other taxa in this clade were Nolella, Arachnidium, Pottsiella, and Paludicella. Clade B was composed of Alcyonidioidea and Multiporata. The genus Alcyonidium was revealed as non-monophyletic, with the two recovered clades likely to be characterized by contrasting reproductive modes (brooding and zygote spawning). Members of the presumptive brooding clade had insertions of possible exogenous origin in their 18S and 28S ribosomal RNA genes, which might be the result of horizontal gene transfer. Clade C was sister to the Cheilostomatida and was composed of Vesicularioidea, Hislopioidea, Walkerioidea, and three clades of Victorellidae. Anguinella and Hypophorella were consistently sister taxa, but their position was unstable. Results are discussed in light of morphology, reproduction, and previous phylogenetic hypotheses. A revised classification is proposed. Timwoodiellina natans is transferred to Hislopia, Vesicularia spinosa to Amathia, and Monobryozoon ambulans to Alcyonidium. Members of the putative zygote-spawning Alcyonidium clade are transferred to Alcyonidioides in the family Alcyonidioididae.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"11 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144603161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 of the Altai grey vole, Microtus obscurus (Rodentia: Cricetidae), reconstructed using modern and ancient genomes 利用现代和古代基因组重建阿尔泰灰田鼠的进化历史，Microtus obscurus（啮齿目：蟋蟀科）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-09 DOI: 10.1093/zoolinnean/zlaf059

Alicja Anna Kaźmierkiewicz, Ahmad Mahmoudi, Boris Kryštufek, Miriam Belmaker, Danijela Popović, Barbara Bujalska, Anna Lemanik, Tatiana Strukova, Adam Nadachowski, Mateusz Baca

{"title":"Evolutionary history of the Altai grey vole, Microtus obscurus (Rodentia: Cricetidae), reconstructed using modern and ancient genomes","authors":"Alicja Anna Kaźmierkiewicz, Ahmad Mahmoudi, Boris Kryštufek, Miriam Belmaker, Danijela Popović, Barbara Bujalska, Anna Lemanik, Tatiana Strukova, Adam Nadachowski, Mateusz Baca","doi":"10.1093/zoolinnean/zlaf059","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf059","url":null,"abstract":"The Altai grey vole (Microtus obscurus) is a rodent species present in Western Asia, Eastern Europe, and the Near East. The taxonomic relationship of M. obscurus and its sister-species, Microtus arvalis, is a matter of ongoing debate and there is a lack of agreement regarding the date of their divergence. To further understand the evolutionary history of M. obscurus, we generated nuclear and mitochondrial data from five modern and 11 ancient specimens from Eastern Europe and the Near East. We reconstructed a tip-dated phylogeny using a 4.3-kilobase fragment of mitochondrial DNA. We estimated the time to the most recent common ancestor of M. arvalis and M. obscurus to be 130 thousand years ago (kya), correlating with the Eemian interglacial, a period characterized by the reduction of open habitats suitable for microtine species. In the Lesser Caucasus, we recorded a turnover of two lineages probably related to environmental changes at the end of the Pleistocene. Using three published and three newly generated nuclear genomes, we confirmed the general population structure and divergence times inferred from the mtDNA. We reconstructed the demographic history of the Altai grey vole, which revealed contrasting trajectories for the two main lineages.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"21 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144594124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 enduring palaeontological riddle: how many hippopotamid species roamed Sicily? The case study of Amoroso Cave 一个经久不衰的古生物之谜：西西里岛上有多少种河马？阿莫罗索洞穴的案例研究

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-09 DOI: 10.1093/zoolinnean/zlaf063

Roberta Martino, Carolina Di Patti, María Ríos, Lorenzo Rook, Mirko Di Febbraro, Pasquale Raia, Luca Pandolfi

{"title":"An enduring palaeontological riddle: how many hippopotamid species roamed Sicily? The case study of Amoroso Cave","authors":"Roberta Martino, Carolina Di Patti, María Ríos, Lorenzo Rook, Mirko Di Febbraro, Pasquale Raia, Luca Pandolfi","doi":"10.1093/zoolinnean/zlaf063","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf063","url":null,"abstract":"Hippopotamus pentlandi, although lacking a comprehensive description, is regarded as one of the best known dwarfed hippopotamid species within the Mediterranean region. This study provides a detailed analysis of a hippopotamus mandible from Amoroso Cave (Palermo, Sicily). Morphological and morphometric comparisons with insular and continental species reveal a significant similarity between the Amoroso mandible and some specimens from San Ciro Cave (Palermo, Sicily), as well as with Hippopotamus amphibius. Conversely, material from Cannita Cave (Palermo, Sicily) attributed to H. pentlandi is less robust, more elongated and smaller. 3D geometric morphometric analysis performed on the symphyseal sagittal cross-section further support a closer morphological affinity of the Amoroso mandible to San Ciro Cave specimens and H. amphibius, suggesting an attribution to the latter. Our research reveals the presence of at least two different, potentially coeval, taxa in the Pleistocene of Sicily: the dwarfed Hippopotamus pentlandi primarily known from Cannita Cave, and H. amphibius. While Cannita Cave material has been thoroughly studied over the years, abundant remains from other localities, e.g. San Ciro Cave, require re-evaluation. A thorough analysis of Sicilian hippopotamids is crucial to improve our understanding of their systematics and to provide new insights into the palaeobiogeography, palaeobiology, and palaeoenvironment of Sicily during the Pleistocene.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"4 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144594125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Phylogeny and species delimitation in an iconic snake genus: the African mambas (Serpentes: Elapidae: Dendroaspis) 一个标志性蛇属的系统发育和物种划分：非洲曼巴（蛇纲：蛇科：树齿蛇）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-07 DOI: 10.1093/zoolinnean/zlaf062

Krystal A Tolley, Graham J Alexander, Isabelle C Winder, Claire Dobson, Cara Hall, Axel Barlow, Elysha McBride, Jens Reissig, Jean-François Trape, Zoltan T Nagy, Catharine Wüster, Wolfgang Wüster

{"title":"Phylogeny and species delimitation in an iconic snake genus: the African mambas (Serpentes: Elapidae: Dendroaspis)","authors":"Krystal A Tolley, Graham J Alexander, Isabelle C Winder, Claire Dobson, Cara Hall, Axel Barlow, Elysha McBride, Jens Reissig, Jean-François Trape, Zoltan T Nagy, Catharine Wüster, Wolfgang Wüster","doi":"10.1093/zoolinnean/zlaf062","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf062","url":null,"abstract":"The African mambas (Dendroaspis) comprise an iconic genus of four large-bodied, highly venomous elapid snakes: the black mamba (D. polylepis) from open formations across sub-Saharan Africa is comprised of two allopatric populations, and three species of green mamba (D. angusticeps, D. jamesoni, and D. viridis) from tropical and sub-tropical forests. Dendroaspis angusticeps occurs in multiple isolated forest patches, and the presence of cryptic species within D. angusticeps has been suggested. The striking coloration of the three green species, a trait unique among elapids, suggests their monophyly to the exclusion of D. polylepis. We generated a dated, multilocus phylogeny of the mambas and assessed species boundaries. Species distribution modelling (SDM) was used to assess the past and present potential connectivity between allopatric populations of D. angusticeps and D. polylepis. The phylogeny suggests that diversification of the crown clade began c. 6 Mya and, contrary to previous suggestions, we found no convincing signal of species-level diversification within D. polylepis or D. angusticeps. The hypothesis of green mamba monophyly was rejected, with D. angusticeps being sister to D. polylepis. The SDMs suggested that allopatric populations of D. polylepis and D. angusticeps were historically connected, and that their vicariance is recent.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"5 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144577911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Hybridogenetic reproduction of Pelophylax water frogs from different hemiclonal population systems from Eastern Ukraine: selective mortality, and clonal and ploidy diversity 乌克兰东部不同半克隆种群系统水蛙的杂交生殖：选择性死亡率、克隆性和倍性多样性

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-07 DOI: 10.1093/zoolinnean/zlaf066

Anna Fedorova, Eleonora Pustovalova, Mykola Drohvalenko, Olha Biriuk, Marie Doležálková-Kaštánková, Maryna Kravchenko, Olexii Korshunov, Peter Mikulíček, Lukáš Choleva, Dmytro Holovnia, Dmitrij Dedukh, Dmytro Shabanov

{"title":"Hybridogenetic reproduction of Pelophylax water frogs from different hemiclonal population systems from Eastern Ukraine: selective mortality, and clonal and ploidy diversity","authors":"Anna Fedorova, Eleonora Pustovalova, Mykola Drohvalenko, Olha Biriuk, Marie Doležálková-Kaštánková, Maryna Kravchenko, Olexii Korshunov, Peter Mikulíček, Lukáš Choleva, Dmytro Holovnia, Dmitrij Dedukh, Dmytro Shabanov","doi":"10.1093/zoolinnean/zlaf066","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf066","url":null,"abstract":"European water frogs from the Pelophylax esculentus complex include two sexual species, Pelophylax ridibundus (genome RR) and Pelophylax lessonae (genome LL), and their hybrids (genome LR), which usually clonally transmit one of the parental species’ genomes. This reproductive strategy, known as hybridogenesis, allows hybrids to reproduce with parental species, creating diverse population systems. Unlike most well-studied populations in Europe, in the Siverskyi Donets River basin (eastern Ukraine), P. lessonae is absent, while diploid and polyploid hybrids coexist with P. ridibundus (R-E system). To reveal diverse system compositions, genetic divergence, and tadpole selective mortality, we combined novel data from over a decade of observations with previous research on population systems in the Siverskyi Donets River. Two key population types of the R-E system were identified: those with diploid hybrids in northern localities and those with both diploid and triploid hybrids, extending from the mainstream of the Siverskyi Donets River to its tributaries. Both sexes were found among both P. ridibundus and hybrids. Additionally, we found higher genetic diversity in R-genomes compared to L-genomes and discuss the cause of variation differences between the genomes. We highlighted the importance of continuous monitoring to unravel water frog population dynamics and complexity.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"72 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144578468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Diversity in the squid family Ancistrocheiridae and description of a new family of the order Oegopsida (Cephalopoda) 乌贼科安氏乌贼科的多样性及一新科的描述（头足目）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-04 DOI: 10.1093/zoolinnean/zlaf074

Sam Arnold, David Nos, Raquel Sáez-Liante, Fernando Á Fernández-Álvarez

{"title":"Diversity in the squid family Ancistrocheiridae and description of a new family of the order Oegopsida (Cephalopoda)","authors":"Sam Arnold, David Nos, Raquel Sáez-Liante, Fernando Á Fernández-Álvarez","doi":"10.1093/zoolinnean/zlaf074","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf074","url":null,"abstract":"Cryptic biodiversity poses challenges to the accurate description and assessment of global biodiversity and ecosystem health. In this work, the morphology and DNA sequence of Ancistrocheirus lesueurii, the sole accepted member of the family Ancistrocheiridae, was studied. The primary literature and, where possible, type specimens of all synonyms of Ancistrocheirus were reviewed and re-examined, respectively. Large morphological differences were found among the 46 examined individuals. Ancistrocheirus alessandrinii was resurrected, its morphology was redescribed based on eight mature specimens, it was molecularly characterized, and a neotype was proposed to ensure taxonomic stability. The morphology of two specimens of Ancistrocheirus sp. A did not match any previously known Ancistrocheirus species and could not be linked to a taxonomic name. The remaining 34 individuals exhibited morphological variation, yet the limited number of adult individuals and deteriorated state of these specimens precluded further morphospecies’ classification. Nonetheless, the observed morphological diversity among those individuals suggests the presence of additional undescribed species within this complex. Molecular analyses revealed at least six cryptic Ancistrocheirus species. Future molecular and morphological research might solve this cryptic species complex. Unexpectedly, a specimen previously identified as A. lesueurii could not be assigned to any oegopsid family. Consequently, Mobydickia poseidonii fam. nov., gen. nov., et sp. nov. was described from this single specimen sampled from a sperm whale stomach from Antarctic or sub-Antarctic waters.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"17 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144566074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Integrative taxonomy reveals further hidden diversity of Marphysa (Polychaeta: Eunicidae) in European Atlantic and Mediterranean waters 综合分类进一步揭示了欧洲大西洋和地中海水域Marphysa（多毛目：蠓科）的多样性

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-04 DOI: 10.1093/zoolinnean/zlaf018

Daniel Martin, Marwa Chaibi, Nicolas Lavesque, Guillemine Daffe, Flore Daramy, Pat Hutchings, Jérôme Jourde, Chiara Romano

{"title":"Integrative taxonomy reveals further hidden diversity of Marphysa (Polychaeta: Eunicidae) in European Atlantic and Mediterranean waters","authors":"Daniel Martin, Marwa Chaibi, Nicolas Lavesque, Guillemine Daffe, Flore Daramy, Pat Hutchings, Jérôme Jourde, Chiara Romano","doi":"10.1093/zoolinnean/zlaf018","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf018","url":null,"abstract":"Marphysa (Polychaeta: Eunicidae) is represented in the Mediterranean by M. aegypti, M. birgeri, and M. chirigota. Previous reports of M. sanguinea are doubtful, because it has a confirmed distribution around the southern English coasts (NE European Atlantic). In this study, we combine morphological and molecular (using 16S rDNA and cytochrome c oxidase I) analyses to reveal for the first time the presence of M. gaditana in the NW Mediterranean (Gulf of Tunis, Tunisia) and to substantiate its presence along the Atlantic coasts of France—previously relying solely on molecular data—drawing on specimens collected in Arcachon Bay and Oléron Island. Our findings also allow us to describe a new species of Marphysa from the Mediterranean coasts of southern France, namely Marphysa gili Martin and Romano, sp. nov., based only on morphological data. Our research highlights previously overlooked diversity within Marphysa on Atlantic and Mediterranean European coasts, thus contributing to the growing series of recent rigorous taxonomic studies that are challenging the historical tendency to merely report ‘M. sanguinea’ without a thorough taxonomic examination or when undertaking physiological, reproductive, or resource management studies on ‘M. sanguinea’ without questioning the appropriateness of using this species’ name.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"147 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144566075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Rediscovery of Melanesobasis Donnelly, 1984 (Odonata: Coenagrionidae) in Vanuatu reveals a pattern of vicariance in insular damselflies 1984年在瓦努阿图重新发现Melanesobasis Donnelly（蛾目：豆娘科），揭示了岛形豆娘的一种变异模式

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-03 DOI: 10.1093/zoolinnean/zlaf075

Natalie A Saxton, Gareth S Powell, Bindiya Rashni, Colin R Jensen, Christopher D Beatty, Dan Polhemus, Milen Marinov, Seth M Bybee

{"title":"Rediscovery of Melanesobasis Donnelly, 1984 (Odonata: Coenagrionidae) in Vanuatu reveals a pattern of vicariance in insular damselflies","authors":"Natalie A Saxton, Gareth S Powell, Bindiya Rashni, Colin R Jensen, Christopher D Beatty, Dan Polhemus, Milen Marinov, Seth M Bybee","doi":"10.1093/zoolinnean/zlaf075","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf075","url":null,"abstract":"The Vitiaz Arc provides a compelling opportunity to examine biogeographical patterns in the South Pacific. Previously, however, many groups lacked the appropriate taxon sampling to examine this system fully. Fieldwork aimed at improving our understanding of Vanuatu insect diversity and evolution resulted in the collection of two specimens of Melanesobasis bicellulare Donelly, 1984, a species previously known from a single specimen collected 40 years ago. Using a combination of morphological and molecular methods, we are able to associate the female, update distributional data, and record intraspecific variation, including the number of post-discoidal cells. We also use this genus, Melanesobasis Donnelly, 1984, found across Fiji and Vanuatu, to explore biogeographical patterns across the Vitiaz Arc. Our results provide additional evidence of the importance of the Vitiaz Arc in South Pacific damselfly biogeography and show a pattern of vicariance between the two island archipelagos.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"27 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144566077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Miocene marine transgression and climate variation drove diversification of subtropical Proceratophrys frogs in the Araucaria Forest 中新世海侵和气候变化推动了亚热带阿劳卡亚森林蛇尾蛙的多样化

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-02 DOI: 10.1093/zoolinnean/zlaf072

Karin R Seger, Raoni Rebouças, Diego Baldo, Mariana M Vasconcellos, Paulo C A Garcia, Célio F B Haddad, Ana Carolina Carnaval, Luciana B Lourenço

{"title":"Miocene marine transgression and climate variation drove diversification of subtropical Proceratophrys frogs in the Araucaria Forest","authors":"Karin R Seger, Raoni Rebouças, Diego Baldo, Mariana M Vasconcellos, Paulo C A Garcia, Célio F B Haddad, Ana Carolina Carnaval, Luciana B Lourenço","doi":"10.1093/zoolinnean/zlaf072","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf072","url":null,"abstract":"The Proceratophrys bigibbosa species group has a disjunct distribution in South America, with four out of five species inhabiting the Araucaria Forest. In this study, we investigated whether cycles of expansions/retractions of the Araucaria Forest or marine transgressions leading to the formation of the Paranean Sea may have contributed to the divergence of these frogs. It was inferred through DNA sequences from three mitochondrial and three nuclear genes across 82 individuals. Genetic divergence was assessed with haplotype networks, while demographic trends were explored using extended Bayesian skyline plots (EBSP). An environmental principal component analysis (ePCA) was also implemented to evaluate the degree of similarity of climatic spaces occupied by each species. Our phylogenetic analyses positioned P. palustris as the sister-species to P. brauni, forming a sister-clade to P. bigibbosa and an undescribed species (Proceratophrys sp.). In addition, we propose P. kaingang as a junior synonym of P. palustris. Our coalescent species tree showed divergence-time estimates ranging between 7.67 and 3.51 Mya, indicating that a marine transgression played a key role in this group diversification. Our findings highlight the combined role of Miocene marine transgressions and climatic variation as drivers of diversification in the Proceratophrys bigibbosa group.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"39 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 arboreal rhynchocephalian from the Late Jurassic of Germany, and the importance of the appendicular skeleton for ecomorphology in lepidosaurs 来自德国晚侏罗世的一种树栖喙头类动物，以及鳞翅龙尾端骨骼对生态形态学的重要性

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-02 DOI: 10.1093/zoolinnean/zlaf073

Victor Beccari, Alexandre R D Guillaume, Marc E H Jones, Andrea Villa, Natalie Cooper, Sophie Regnault, Oliver W M Rauhut

{"title":"An arboreal rhynchocephalian from the Late Jurassic of Germany, and the importance of the appendicular skeleton for ecomorphology in lepidosaurs","authors":"Victor Beccari, Alexandre R D Guillaume, Marc E H Jones, Andrea Villa, Natalie Cooper, Sophie Regnault, Oliver W M Rauhut","doi":"10.1093/zoolinnean/zlaf073","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf073","url":null,"abstract":"Here, we describe a new species of Jurassic rhynchocephalian from the Solnhofen Archipelago, Sphenodraco scandentis gen. et sp. nov., and highlight the importance of the postcranial anatomy for ecomorphological studies in the rhynchocephalian clade. The holotype of Sphenodraco scandentis is divided into a main slab, which has been mentioned in the literature and previously assigned to Homoeosaurus maximiliani, and a counterslab containing most of its skeletal remains. This new taxon shows an exclusive combination of osteological features that differs from previously described rhynchocephalians. Sphenodraco was recovered in our phylogenetic analysis as a component of a clade including Homoeosaurus and Kallimodon. To evaluate the ecomorphology of the new taxon, we compare fossil rhynchocephalians with the extant tuatara and squamates. We quantify the diversity of body proportions in lepidosaurs systematically, inferring lifestyle for extinct rhynchocephalians. Our analysis suggests that fossil rhynchocephalians had a diverse array of substrate uses, with some categorized as good climbers, and with Sphenodraco showing the extreme condition of limb elongation found in strictly arboreal lizards. This new taxon is here regarded as the first predominantly or even strictly arboreal rhynchocephalian. Furthermore, our analysis shows that the diversity of fossil rhynchocephalians might still be underestimated.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"92 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144533122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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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