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Amphibia-Reptilia 38 (2017): 483-502 Resurrection of genus Nidirana (Anura: Ranidae) and synonymizing N. caldwelli with N. adenopleura, with description of a new species from China Zhi-Tong Lyu, Zhao-Chi Zeng, Jian Wang, Chao-Yu Lin, Zu-Yao Liu, Ying-Yong Wang∗ Abstract. The taxonomy of Babina sensu lato was controversial in the past decades. In this study, the phylogeny of genus Babina sensu lato was re-constructed based on genetic analysis, morphological comparison and advertisement call analysis. We found that Babina sensu stricto and previous subgenus Nidirana should be two distinct genera in the family Ranidae. N. caldwelli is confirmed to be a synonym of N. adenopleura because of the small genetic divergence and the lack of distinct morphological differences. A new species, Nidirana nankunensis sp. nov. is described based on a series of specimens collected from Mt. Nankun, Guangdong Province, China, which can be distinguished from other known congeners by having a behavior of nest construction, distinctive advertisement calls, significant divergence in the mitochondrial genes, and a combination of morphological characters. Currently, the genus Babina contains two species and the genus Nidirana contains eight species. Keywords: Babina, bioacoustic, mitochondrial DNA, morphology, Nidirana nankunensis sp. nov., phylogeny. Introduction folds (Dubois, 1992). Subsequently, Nidirana was recognized as a separate genus by Chen The ranid genus Babina was established and de- et al. (2005), based on a molecular phyloge- scribed on the basis of Rana holsti Boulenger, netic tree of Southeast Asian ranids that only 1892 (type species) and Rana subaspera Bar- included one Nidirana species – R. (N.) cha- bour, 1908 by Thompson (1912). -
A New Species of Amolops from Thailand (Amphibia, Anura, Ranidae)
ZOOLOGICAL SCIENCE 23: 727–732 (2006) 2006 Zoological Society of Japan A New Species of Amolops from Thailand (Amphibia, Anura, Ranidae) Masafumi Matsui1* and Jarujin Nabhitabhata2 1Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan 2National Science Museum, Technopolis, Klong 5, Klongluang District, Pathun thani 12120, Thailand We describe a new species of torrent-dwelling ranid frog of the genus Amolops from western to peninsular Thailand. Amolops panhai, new species, differs from its congeners by the combination of: small body, males 31–34 mm, females 48–58 mm in snout-vent length; head narrower than long; tympanum distinct; vomerine teeth in short, oblique patches; first finger subequal to second; disc of first finger smaller than that of second, with circummarginal groove; no wide fringe of skin on third finger; toes fully webbed; outer metatarsal tubercle present; supratympanic fold present; dor- solateral fold indistinct; axillary gland present; horny spines on back, side of head and body, and chest absent; large tubercles on side of anus absent; glandular fold on ventral surface of tarsus absent; nuptial pad and paired gular pouches present in male; white band along the upper jaw extending to shoulder absent; larval dental formula 7(4-7)/3(1). This new species is the second anu- ran discovered which has a disjunct distribution around the Isthmus of Kra. Key words: Amolops, new species, Southeast Asia, tadpole, taxonomy, zoogeography Ranong), which we describe below as a new species. INTRODUCTION Oriental ranid frogs related to Amolops Cope, 1865 MATERIALS AND METHODS (sensu lato) are characterized by their peculiar larvae, which A field survey was conducted in western and peninsular Thai- inhabit mountain torrents using an abdominal, suctorial disk land between December 1995 and January 1997. -
Cortisol Regulation of Aquaglyceroporin HC-3 Protein Expression in the Erythrocytes of the Freeze Tolerant Tree Frog Dryophytes Chrysoscelis
University of Dayton eCommons Honors Theses University Honors Program 4-1-2019 Cortisol Regulation of Aquaglyceroporin HC-3 Protein Expression in the Erythrocytes of the Freeze Tolerant Tree Frog Dryophytes chrysoscelis Maria P. LaBello University of Dayton Follow this and additional works at: https://ecommons.udayton.edu/uhp_theses Part of the Biology Commons eCommons Citation LaBello, Maria P., "Cortisol Regulation of Aquaglyceroporin HC-3 Protein Expression in the Erythrocytes of the Freeze Tolerant Tree Frog Dryophytes chrysoscelis" (2019). Honors Theses. 218. https://ecommons.udayton.edu/uhp_theses/218 This Honors Thesis is brought to you for free and open access by the University Honors Program at eCommons. It has been accepted for inclusion in Honors Theses by an authorized administrator of eCommons. For more information, please contact [email protected], [email protected]. Cortisol Regulation of Aquaglyceroporin HC-3 Protein Expression in Erythrocytes from the Freeze Tolerant Tree Frog Dryophytes chrysoscelis Honors Thesis Maria P. LaBello Department: Biology Advisor: Carissa M. Krane, Ph.D. April 2019 Page | i Cortisol Regulation of Aquaglyceroporin HC-3 Protein Expression in the Erythrocytes of the Freeze Tolerant Tree Frog Dryophytes chrysoscelis Honors Thesis Maria P. LaBello Department: Biology Advisor: Carissa M. Krane, Ph.D. April 2019 Abstract Dryophytes chrysoscelis, commonly known as Cope’s gray treefrog, is a freeze tolerant anuran that freezes up to 65% of extracellular fluid during winter to survive. Glycerol is presumably used as a cryoprotectant during a period of cold-acclimation to protect cells from permanent damage due to hypoosmotic stress upon freezing and thawing. The passage of glycerol and water during cold-acclimation is mediated through aquaglyceroporin HC-3 in the nucleated erythrocytes (RBCs) of D. -
Congolius, a New Genus of African Reed Frog Endemic to The
www.nature.com/scientificreports OPEN Congolius, a new genus of African reed frog endemic to the central Congo: A potential case of convergent evolution Tadeáš Nečas1,2*, Gabriel Badjedjea3, Michal Vopálenský4 & Václav Gvoždík1,5* The reed frog genus Hyperolius (Afrobatrachia, Hyperoliidae) is a speciose genus containing over 140 species of mostly small to medium-sized frogs distributed in sub-Saharan Africa. Its high level of colour polymorphism, together with in anurans relatively rare sexual dichromatism, make systematic studies more difcult. As a result, the knowledge of the diversity and taxonomy of this genus is still limited. Hyperolius robustus known only from a handful of localities in rain forests of the central Congo Basin is one of the least known species. Here, we have used molecular methods for the frst time to study the phylogenetic position of this taxon, accompanied by an analysis of phenotype based on external (morphometric) and internal (osteological) morphological characters. Our phylogenetic results undoubtedly placed H. robustus out of Hyperolius into a common clade with sympatric Cryptothylax and West African Morerella. To prevent the uncovered paraphyly, we place H. robustus into a new genus, Congolius. The review of all available data suggests that the new genus is endemic to the central Congolian lowland rain forests. The analysis of phenotype underlined morphological similarity of the new genus to some Hyperolius species. This uniformity of body shape (including cranial shape) indicates that the two genera have either retained ancestral morphology or evolved through convergent evolution under similar ecological pressures in the African rain forests. African reed frogs, Hyperoliidae Laurent, 1943, are presently encompassing almost 230 species in 17 genera. -
Linearized Esculentin-2EM Shows Ph Dependent Antibacterial Activity With
Molecular and Cellular Biochemistry https://doi.org/10.1007/s11010-021-04181-7 Linearized esculentin‑2EM shows pH dependent antibacterial activity with an alkaline optimum Erum Malik1 · David A. Phoenix2 · Timothy J. Snape3 · Frederick Harris4 · Jaipaul Singh4 · Leslie H. G. Morton4 · Sarah R. Dennison5 Received: 5 November 2020 / Accepted: 12 May 2021 © The Author(s) 2021 Abstract Here the hypothesis that linearized esculentin 2EM (E2EM-lin) from Glandirana emeljanovi possesses pH dependent activ- ity is investigated. The peptide showed weak activity against Gram-negative bacteria (MLCs ≥ 75.0 μM) but potent efcacy towards Gram-positive bacteria (MLCs ≤ 6.25 μM). E2EM-lin adopted an α-helical structure in the presence of bacterial membranes that increased as pH was increased from 6 to 8 (↑ 15.5–26.9%), whilst similar increases in pH enhanced the ability of the peptide to penetrate (↑ 2.3–5.1 mN m−1) and lyse (↑ 15.1–32.5%) these membranes. Theoretical analysis predicted that this membranolytic mechanism involved a tilted segment, that increased along the α-helical long axis of E2EM-lin (1–23) in the N → C direction, with − < µH > increasing overall from circa − 0.8 to − 0.3. In combination, these data showed that E2EM-lin killed bacteria via novel mechanisms that were enhanced by alkaline conditions and involved the formation of tilted and membranolytic, α-helical structure. The preference of E2EM-lin for Gram-positive bacteria over Gram-negative organisms was primarily driven by the superior ability of phosphatidylglycerol to induce α-helical structure in the peptide as compared to phosphatidylethanolamine. These data were used to generate a novel pore-forming model for the membranolytic activity of E2EM-lin, which would appear to be the frst, major reported instance of pH dependent AMPs with alkaline optima using tilted structure to drive a pore-forming process. -
For Review Only
Page 63 of 123 Evolution Moen et al. 1 1 2 3 4 5 Appendix S1: Supplementary data 6 7 Table S1 . Estimates of local species composition at 39 sites in Middle America based on data summarized by Duellman 8 9 10 (2001). Locality numbers correspond to Table 2. References for body size and larval habitat data are found in Table S2. 11 12 Locality and elevation Body Larval Subclade within Middle Species present Hylid clade 13 (country, state, specific location)For Reviewsize Only habitat American clade 14 15 16 1) Mexico, Sonora, Alamos; 597 m Pachymedusa dacnicolor 82.6 pond Phyllomedusinae 17 Smilisca baudinii 76.0 pond Middle American Smilisca clade 18 Smilisca fodiens 62.6 pond Middle American Smilisca clade 19 20 21 2) Mexico, Sinaloa, Mazatlan; 9 m Pachymedusa dacnicolor 82.6 pond Phyllomedusinae 22 Smilisca baudinii 76.0 pond Middle American Smilisca clade 23 Smilisca fodiens 62.6 pond Middle American Smilisca clade 24 Tlalocohyla smithii 26.0 pond Middle American Tlalocohyla 25 Diaglena spatulata 85.9 pond Middle American Smilisca clade 26 27 28 3) Mexico, Durango, El Salto; 2603 Hyla eximia 35.0 pond Middle American Hyla 29 m 30 31 32 4) Mexico, Jalisco, Chamela; 11 m Dendropsophus sartori 26.0 pond Dendropsophus 33 Exerodonta smaragdina 26.0 stream Middle American Plectrohyla clade 34 Pachymedusa dacnicolor 82.6 pond Phyllomedusinae 35 Smilisca baudinii 76.0 pond Middle American Smilisca clade 36 Smilisca fodiens 62.6 pond Middle American Smilisca clade 37 38 Tlalocohyla smithii 26.0 pond Middle American Tlalocohyla 39 Diaglena spatulata 85.9 pond Middle American Smilisca clade 40 Trachycephalus venulosus 101.0 pond Lophiohylini 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Evolution Page 64 of 123 Moen et al. -
Morphological Alterations in the External Gills of Some Tadpoles in Response to Ph
THIEME 142 Original Article Morphological Alterations in the External Gills of Some Tadpoles in Response to pH CaressaMaebhaThabah1 Longjam Merinda Devi1 Rupa Nylla Kynta Hooroo1 Sudip Dey2 1 Developmental Biology Laboratory, Department of Zoology, North- Address for correspondence Caressa Maebha Thabah, PhD in Eastern Hill University, Shillong, Meghalaya, India Zoology, Developmental Biology Laboratory, Department of Zoology, 2 Electron Microscope Laboratory, Sophisticated Analytical Instrument North-Eastern Hill University, Shillong 793022, Meghalaya, India Facility, North-Eastern Hill University, Shillong, Meghalaya, India (e-mail: [email protected]). J Morphol Sci 2018;35:142–152. Abstract Introduction Water pH affects the breeding, hatching, development, locomotion, mortality and habitat distributions of species in nature. The external gills of anuran tadpoles were studied by several authors in relation to abiotic factors. Exposure to low and high pH has been found to adversely affect the different tissues of various organisms. On that consideration, the present investigation was performed with tadpoles of the species Hyla annectans and Euphlyctis cyanophlyctis. Material and Methods The maximum and the minimum pH thresholds were determined prior to the detailed experiments on the effects of pH. The pH that demonstrated 50% mortality was taken as the minimum and maximum pH thresholds. The hatchlings of both the species were then subjected to different pH (based on the minimum and maximum pH thresholds). After 48 hours of exposure, the external gills of the hatchlings were anesthetized and observed under a scanning electron microscope. Keywords Results After 48 hours, clumping, overlapping and curling of the secondary filaments ► Hyla annectans of the external gills and epithelial lesions in response to both acidic and alkaline pH ► Euphlyctis were observed. -
Is Dicroglossidae Anderson, 1871 (Amphibia, Anura) an Available Nomen?
Zootaxa 3838 (5): 590–594 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Correspondence ZOOTAXA Copyright © 2014 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3838.5.8 http://zoobank.org/urn:lsid:zoobank.org:pub:87DD8AF3-CB72-4EBD-9AA9-5B1E2439ABFE Is Dicroglossidae Anderson, 1871 (Amphibia, Anura) an available nomen? ANNEMARIE OHLER1 & ALAIN DUBOIS Muséum National d'Histoire Naturelle, Département Systématique et Evolution, UMR7205 ISYEB, CP 30, 25 rue Cuvier, 75005 Paris 1Corresponding autho. E-mail: [email protected] Abbreviations used: BMNH, Natural History Museum, London; SVL, snout–vent length; ZMB, Zoologisch Museum, Berlin. Anderson (1871a: 38) mentioned the family nomen DICROGLOSSIDAE, without any comment, in a list of specimens of the collections of the Indian Museum of Calcutta (now the Zoological Survey of India). He referred to this family a single species, Xenophrys monticola, a nomen given by Günther (1864) to a species of MEGOPHRYIDAE from Darjeeling and Khasi Hills (India) which has a complex nomenclatural history (Dubois 1989, 1992; Deuti et al. submitted). Dubois (1987: 57), considering that the nomen DICROGLOSSIDAE had been based on the generic nomen Dicroglossus Günther, 1860, applied it to a family group taxon, the tribe DICROGLOSSINI, for which he proposed a diagnosis. The genus Dicroglossus had been erected by Günther (1860), 11 years before Anderson’s (1871a) paper, for the unique species Dicroglossus adolfi. Boulenger (1882: 17) stated that this specific nomen was a subjective junior synonym of Rana cyanophlyctis Schneider, 1799, and therefore Dicroglossus a subjective junior synonym of Rana Linnaeus, 1758 (Boulenger, 1882: 7). -
Site Occupancy of Two Endemic Stream Frogs in Different Forest Types in Pakistan
Herpetological Conservation and Biology 15(3):506–511. Submitted: 13 March 2020; Accepted: 9 September 2020; Published: 16 December 2020. SITE OCCUPANCY OF TWO ENDEMIC STREAM FROGS IN DIFFERENT FOREST TYPES IN PAKISTAN WASEEM AHMED1, MUHAMMAD RAIS, MUHAMMAD SAEED, AYESHA AKRAM, IMTIAZ AHMAD KHAN, AND SUMBUL GILL Herpetology Lab, Department of Wildlife Management, Pir Mehr Ali Shah Arid Agriculture University Rawalpindi, Rawalpindi 46000, Pakistan 1Corresponding author, e-mail: [email protected] Abstract.—We identified the habitats where Murree Hills Frog (Nanorana vicina) and Hazara Torrent Frog (Allopaa hazarensis) are most likely to occur in Pakistan, and examined how their occurrence at a particular stream or water body is influenced by site and survey covariates. Although these two frog species are listed as Least Concern in the Red List of Threatend Species by the International Union for Conservation of Nature, major conservation threats to these species in Pakistan include habitat degradation, urbanization, and climate change. We made visits to 69 sites during the 2-y study period (June 2016 to July 2018) in three forest types of Islamabad Capital Territory, District Rawalpindi (Province Punjab) and District Abbottabad, (Province Khyber Pakhtunkhwa), Pakistan. We found Murree Hills Frog at 51% of sites, and Hazara Torrent Frog at 30% of sites. Our logistic regression model explained 78.0% of the variance in Murree Hills Frog occurrence and correctly classified 87% of the cases. Increased elevation and availability of permanent water were associated with an increased likelihood of occurrence of this species. The logistic regression model explained 51.0% of the variance in Hazara Torrent Frog occurrence and correctly classified 70% of the cases. -
Phylogeography of the American Green Treefrog Species Group
PHYLOGEOGRAPHY OF THE AMERICAN GREEN TREEFROG SPECIES GROUP by PAUL NATHANIEL PASICHNYK Presented to the Faculty of the Graduate School of The University of Texas at Arlington In Partial Fulfillment of the Requirements for the Degree of DOCTOR OF PHILOSOPHY THE UNIVERSITY OF TEXAS AT ARLINGTON November 2016 Copyright © by Paul N. Pasichnyk 2016 All Rights Reserved ii Acknowledgments A student’s graduate work is definitely not something that is done alone. I have received help from numerous people over the years and without their contributions, this would not have been possible. First, I would like to thank my parents for their tremendous support and motivation as I grew up and provided me with a foundation and love in education. Secondly, I would like to thank the person who has had to help me daily with tasks as simple as a pat on the back to as complex as reading a rough draft of a dissertation that might as well be in a foreign language, my wife Karen. My in-laws deserve special thanks as well, I do not believe that it is possible for others’ in-laws to be as supportive and helpful as mine. Then I would like to thank all the undergrads and friends who have helped see this to completion: Richard Hanna, Sari Mahon, Sarah Young, Nicole Lopez, Annamarie Slaven, Leslie Segovia, Pankaj BC, Matt Moseley, Christian Cox, Jeff Streicher, Claudia Marquez, Jesse Meik, Walter Schargel, Corey Roelke, Matt Watson, Rebbekah Watson, Thomas Eimermacher, Utpal Smart, David Sanchez, Jacobo Reyes-Velasco, Melissa Muenzler, Carl Franklin, Linda Taylor, Gloria Burlingham, Sherri Echols, and Paulette Williams. -
Gymnophiona: Caeciliidae) from the Techniques, and Recent Predictions Western Ghats of Goa and Karnataka (Dinesh Et Al
JoTT NOTE 2(8): 1105-1108 New site records of Gegeneophis upsurge in the description of new goaensis and G. mhadeiensis species in Gegeneophis may be due to optimization of surveying (Gymnophiona: Caeciliidae) from the techniques, and recent predictions Western Ghats of Goa and Karnataka (Dinesh et al. 2009) indicate future discovery of new species from this genus. 1 2 Gopalakrishna Bhatta , K.P. Dinesh , Gegeneophis goaensis was described by Bhatta et 3 4 P. Prashanth , Nirmal U. Kulkarni & al. (2007a) from Keri Village, Sattari Taluk, North Goa 5 C. Radhakrishnan District, Goa based on a set of three specimens collected in September 2006 and July 2008. G. mhadeiensis 1 Department of Biology, BASE Educational Service Pvt. Ltd., was described in 2007 from Chorla Village, Khanapur Basavanagudi, Bengaluru, Karnataka 560004, India 2,5 Zoological Survey of India, Western Ghat Regional Centre, Taluk, Belgaum District, Karnataka from a set of three Eranhipalam, Kozhikode, Kerala 673006, India specimens collected during 2006 (Bhatta et al. 2007b). 3 Agumbe Rainforest Research Station, Agumbe, Karnataka During our recent explorations for these secretive animals 577411, India 4 in the bordering districts of Maharashtra (Sindhudurg), Hiru Naik Building, Dhuler Mapusa, Goa 403507, India Email: 2 [email protected] (corresponding author) Goa (North Goa) and Karnataka (Belgaum), we collected an individual of G. goaensis (Image 1) below the soil heap surrounding a banana plantation in Chorla In India the order Gymnophiona Müller is represented Village (Karnataka) on 05 August 2009 (Table 1). All by 26 species under four genera in two families (Dinesh the morphological and morphometric details were in et al. -
Figs1 Speciestree Seqcap
Phrynomantis microps Microhylidae Breviceps adspersus Brevicipitidae Hemisus marmoratus Hemisotidae Leptopelis rufus Cardioglossa gracilis Arthtroleptis poecilinotus Leptodactylodon ovatus Arthroleptidae Nyctibates corrugatus Trichobatrachus robustus Scotobleps gabonicus Acanthixalus spinosus Acanthixalus sonjae Semnodactylus wealli Paracassina obscura Paracassina kounhiensis Kassininae Phlyctimantis maculata Phlyctimantis verrucosus Phlyctimantis boulengeri Phlyctimantis leonardi Kassina kuvangensis Kassina fusca Kassina lamottei Kassina senegalensis Kassina decorata Kassina maculosa Kassina arboricola Hyperoliidae Kassina cochranae Opisthothylax immaculatus Afrixalus enseticola Tachycnemis seychellensis Heterixalus luteostriatus Malagasy-Seychelles Heterixalus alboguttatus Species Afrixalus vibekensis Afrixalus weidholzi Afrixalus lacustris Afrixalus dorsimaculatus 1 Afrixalus dorsimaculatus 2 Afrixalus knysae Afrixalus spinifrons Hyperoliinae Afrixalus delicatus Afrixalus sylvaticus Afrixalus brachycnemis Afrixalus laevis Afrixalus lacteus Afrixalus fornasini Afrixalus wittei Afrixalus osorioi Afrixalus paradorsalis paradorsalis 2 Afrixalus paradorsalis paradorsalis 1 Afrixalus paradorsalis manengubensis Afrixalus nigeriensis Afrixalus vittiger 1 Afrixalus vittiger 2 Afrixalus dorsalis 3 Afrixalus dorsalis 1 Afrixalus quadrivittatus 1 Afrixalus quadrivittatus 2 Afrixalus dorsalis 2 Afrixalus fulvovittatus 2 Afrixalus fulvovittatus 1 Morerella cyanophthalma Cryptothylax greshoffii Hyperolius semidiscus Hyperolius parkeri Hyperolius