Ichthyology and Herpetology最新文献

{"title":"A New Species of Silverside of the Genus Odontesthes (Atheriniformes: Atherinopsidae) with Hypertrophic Lips from a High-Altitude Basin in Southern Brazil","authors":"Juliana M. Wingert, J. Ferrer, M. P. Neves, Dirceu Baumgartner, L. Malabarba","doi":"10.1643/i2021136","DOIUrl":"https://doi.org/10.1643/i2021136","url":null,"abstract":"Odontesthes crossognathos, new species, is described from the Pelotas River basin, upper Uruguay River, southern Brazil. The new species is easily diagnosed by the possession of hypertrophied lips bearing numerous dermal papillae, a character absent in other species of the genus. The new species is also distinguished from congeners, except O. humensis, by having the upper jaw distinctly longer than the lower jaw and a subterminal mouth. These mouth morphology adaptations are probably related to the foraging behavior of the new species, which inhabits rivers with rapids and rocky bottoms in a high-altitude basin. Odontesthes crossognathos, espécie nova, é descrita da bacia do rio Pelotas, alto rio Uruguai, sul do Brasil. A nova espécie é facilmente diagnosticável por possuir lábios hipertrofiados com numerosas papilas dérmicas, caráter ausente em outras espécies do gênero. A nova espécie também se distingue das congêneres, exceto de O. humensis, por ter a mandíbula superior distintamente mais longa do que a inferior e a boca subterminal. Essas adaptações na morfologia da boca provavelmente estão relacionadas ao comportamento de forrageamento da nova espécie, que habita rios de corredeiras e fundos rochosos em uma bacia de altitude elevada.","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46796418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Woodland Box Turtle (Terrapene carolina carolina) Abundance Declines with Increasing Urban Land Use in the Piedmont","authors":"Ashley Graham, Jack T Nguyen, K. Sasaki","doi":"10.1643/h2022001","DOIUrl":"https://doi.org/10.1643/h2022001","url":null,"abstract":"Urbanization increasingly threatens wildlife, as urban extent is expected to triple by 2030. However, the role of urbanization in population declines remains poorly understood for many species. To determine the role of urbanization in the decline of Woodland Box Turtles (Terrapene carolina carolina), we estimated abundances of box turtles via timed visual surveys at 11 forest patches along a gradient of urbanization in the rapidly urbanizing Piedmont ecoregion. We related abundance of female and male box turtles to landcover variables indicative of urbanization intensity (forest cover, impervious surface cover, and road density) quantified at three spatial extents (circular areas with a radius of 500 m, 1,500 m, and 2,500 m around each sampling area) to capture potential effects at the patch and landscape levels. Female abundance declined most strongly with increasing impervious surface area at a 500 m radius, and to a lesser extent with decreasing forest cover and increasing road density at a 500 m radius, with these variables explaining 42%, 31%, and 29% of the variation in abundance, respectively. Male abundance declined most strongly with decreasing forest cover at the 2,500 m and 500 m radii, but only 18% and 14% of the variation was accounted for by each of these variables, respectively. Observed negative associations between urban landcover and box turtle abundance suggest that urbanization contributes to their decline, especially in females. We advise that preserving or restoring large urban forest patches are important to the long-term persistence of Woodland Box Turtles in ever increasing urban landscapes.","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41382986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A New Species of Sternopygus (Gymnotiformes: Sternopygidae) from the Atlantic Coast of the Guiana Shield","authors":"Kevin T. Torgersen, J. Albert","doi":"10.1643/i2022013","DOIUrl":"https://doi.org/10.1643/i2022013","url":null,"abstract":"Sternopygus sabaji, new species, is described from the Atlantic drainages of the Guiana Shield region of South America using traditional methods of morphometrics and meristics and microcomputed tomography (µCT) scans for osteological analysis. The new species is diagnosed from all other species of Sternopygus by the lack of dentition on the anteroventral surface of the endopterygoid and by the possession of a wider mouth. It further differs from its congeners by the following combination of characters: reduced humeral spot with low-contrast and poorly defined margins, possession of a light-colored mid-lateral stripe along posterior portion of lateral line, possession of 1–3 dark saddle-like markings along dorsum of smaller individuals, and a relatively low precaudal vertebrae count. This work provides the first description of a species of Sternopygus that is endemic to the Guiana Shield, joining S. astrabes and S. macrurus in elevating the species richness of the clade in that region to three species and the total number of valid Sternopygus to ten species.","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46768799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phylogeny Reconciles Classification in Antarctic Plunderfishes","authors":"Elyse Parker, T. Near","doi":"10.1643/i2021126","DOIUrl":"https://doi.org/10.1643/i2021126","url":null,"abstract":"The resolution of phylogenetic relationships within rapid radiations poses a significant challenge in systematic biology. However, the integration of genome-scale DNA data with multispecies coalescent-based tree inference methods offers a strategy to resolve historically recalcitrant nodes within radiations of closely related species. Here, we analyze a dataset of over 60,000 loci captured via double digest restriction site-associated DNA sequencing (ddRADseq) using both concatenation- and coalescent-based approaches to infer the phylogenetic relationships of the Antarctic notothenioid lineage Artedidraconinae. Previous studies identify artedidraconines as the most rapidly diversifying subclade of notothenioids, but evolutionary studies of the clade are stymied by pervasive phylogenetic and taxonomic uncertainty. The results of our phylogenomic analyses provide clarity to several long-standing challenges in the systematics of artedidraconines, including the deep paraphyly of Artedidraco. Our findings enable the construction of a classification that reflects phylogenetic relationships, including the description of a new genus and the resurrection of a classification of Notothenioidei that places Artedidraconinae as a subfamily of Harpagiferidae. This work provides a phylogenetic perspective for investigations of the tempo and mode of diversification in artedidraconines, which is likely to provide new insights on the dynamics of the notothenioid adaptive radiation as a whole.","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49048319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"State of the Amphibia 2020: A Review of Five Years of Amphibian Research and Existing Resources","authors":"Molly C. Womack, Emma Steigerwald, David C. Blackburn, D. Cannatella, A. Catenazzi, J. Che, M. Koo, J. McGuire, S. Ron, Carol L. Spencer, V. Vredenburg, Rebecca D. Tarvin","doi":"10.1643/h2022005","DOIUrl":"https://doi.org/10.1643/h2022005","url":null,"abstract":"Amphibians are a clade of over 8,400 species that provide unique research opportunities and challenges. With amphibians undergoing severe global declines, we posit that assessing our current understanding of amphibians is imperative. Focusing on the past five years (2016–2020), we examine trends in amphibian research, data, and systematics. New species of amphibians continue to be described at a pace of ∼150 per year. Phylogenomic studies are increasing, fueling a growing consensus in the amphibian tree of life. Over 3,000 species of amphibians are now represented by expert-curated accounts or data in AmphibiaWeb, AmphibiaChina, BIOWEB, or the Amphibian Disease Portal. Nevertheless, many species lack basic natural history data (e.g., diet records, morphological measurements, call recordings) and major gaps exist for entire amphibian clades. Genomic resources appear on the cusp of a rapid expansion, but large, repetitive amphibian genomes still pose significant challenges. Conservation continues to be a major focus for amphibian research, and threats cataloged on AmphibiaWeb for 1,261 species highlight the need to address land use change and disease using adaptive management strategies. To further promote amphibian research and conservation, we underscore the importance of database integration and suggest that other understudied or imperiled clades would benefit from similar assessments of existing data.","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41889192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Novel Association between Larval and Juvenile Erythrocles schlegelii (Teleostei: Emmelichthyidae) and Pelagic Tunicates","authors":"M. Pastana, M. Girard, Mike I. Bartick, G. Johnson","doi":"10.1643/i2022008","DOIUrl":"https://doi.org/10.1643/i2022008","url":null,"abstract":"We describe the first documented associations between an emmelichthyid and a pelagic tunicate. An in situ observation of larval and juvenile Japanese Rubyfish, Erythrocles schlegelii (Emmelichthyidae) was made during blackwater scuba dives in the epipelagic waters off the coast of the Philippines. The fish were in close association with the pelagic salp Pegea confoederata (Thaliacea; Salpidae), either drifting alongside a colony of salps or residing inside individual salp cavities. Our results describe and illustrate this behavior, highlighting a previously undocumented family of fishes that associates with pelagic gelatinous invertebrates. This finding also demonstrates the importance of community science to further our understanding of the early life history of marine fishes.","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48159285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dr. Molly C. Womack","authors":"","doi":"10.1643/t2022076","DOIUrl":"https://doi.org/10.1643/t2022076","url":null,"abstract":"","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42132766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"William E. Duellman (1930–2022)","authors":"J. Mendelson","doi":"10.1643/t2022033","DOIUrl":"https://doi.org/10.1643/t2022033","url":null,"abstract":"","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47693334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genomic Data Clarify Aquarana Systematics and Reveal Isolation-by-Distance Dominates Phylogeography of the Wide-Ranging Frog Rana clamitans","authors":"Daniel J. MacGuigan, G. Mount, G. Watkins-Colwell, T. Near, Max R. Lambert","doi":"10.1643/h2021129","DOIUrl":"https://doi.org/10.1643/h2021129","url":null,"abstract":"Wide-ranging species often span geographic dispersal barriers, providing opportunity for divergence via genetic drift or natural selection. Such conditions can be favorable for speciation, and wide-ranging taxa are frequently subdivided into multiple species by modern molecular studies. However, with wide-ranging species, it is important to explicitly test for isolation-by-distance (IBD), which can produce continuous genetic variation that may be misinterpreted as discrete population structure or even distinct species. Here we examine the Green Frog (Rana clamitans), a wide-ranging species of the Aquarana clade distributed across much of North America. The broader phylogenetic context for R. clamitans within Aquarana is poorly understood, particularly its relationship with the closely related and IUCN Vulnerable Florida Bog Frog (Rana okaloosae). Additionally, although phenotypic variation within Rana clamitans previously merited description of two subspecies, patterns of genetic diversity remain unclear. Using genome-wide ddRAD markers, we largely resolve relationships within Aquarana and unambiguously identify R. okaloosae as the sister lineage to R. clamitans. Despite mtDNA introgression, we find little genomic evidence of hybridization between R. okaloosae and R. clamitans. Within R. clamitans there are two well-supported and geographically divided clades, which are identified as distinct species by a multispecies coalescent-based approach. However, the two clades exhibit low genealogical divergence. Population genetic analyses reveal that genetic variation within R. clamitans is best described by a pattern of IBD rather than independently evolving lineages. We conclude that R. clamitans is indeed a single species and the subspecies concept is of limited use. Our analysis demonstrates the importance of understanding continuous genetic variation when delimiting lineages and highlights the power of combining population genetic and phylogenetic perspectives to describe diversity within wide-ranging taxa.","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42271372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dr. Matthew A. Kolmann","authors":"Dr. Matthew A. Kolmann","doi":"10.1643/t2022077","DOIUrl":"https://doi.org/10.1643/t2022077","url":null,"abstract":"Tell us a little about your research.— I study the evolution of form and function within the context of understanding aquatic biodiversity. My work integrates biomechanics, morphometry, and bio-imaging with phylogenetics and evolutionary ecology. I am principally interested in the evolution of traits, and I rely on this gamut of techniques and perspectives to tease apart the complex histories of why an animal looks and behaves a certain way. For instance, I am how my coauthors and I combined diet data, and high-resolution imaging to tease apart the evolutionary relationships of piranhas and pacus (Serrasal-midae). combination of methods us propose relationships pacus and","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49496817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}