1
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Röhr DL, Camurugi F, Paterno GB, Gehara M, Juncá FA, Álvares GF, Brandão RA, Garda AA. Variability in anuran advertisement call: a multi-level study with 15 species of monkey tree frogs (Anura, Phyllomedusidae). CAN J ZOOL 2020. [DOI: 10.1139/cjz-2020-0018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Understanding the variability of acoustic signals is a first important step for the comprehension of the evolutionary processes that led to current diversity. Herein, we evaluate the variability of the advertisement call of the phyllomedusid species from the genera Phyllomedusa Wagler, 1830 and Pithecopus Cope, 1866 at different levels: intra-individual, intra-population, inter-population, intra-species, and inter-specific. An analysis of coefficients of variation showed a continuum of variability between the acoustic parameters analyzed, from static to highly dynamic. The majority of the variation was attributed to the inter-specific level, while call parameters at the intra-individual level varied the least. However, each parameter behaved differently with call interval being the most variable across all levels. Most temporal acoustic parameters were affected by environmental temperature, while pulse rate and dominant frequency were strongly influenced by body size. Only pulse rate was correlated to the geographic distance between populations, while all parameters presented a significant phylogenetic signal. Based on these results, we discuss the possible importance of different evolutionary forces and the usage of vocalizations for taxonomic purposes.
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Affiliation(s)
- David L. Röhr
- Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Lagoa Nova, 59072-970, Natal, RN, Brazil
| | - Felipe Camurugi
- Programa de Pós-Graduação em Ciências Biológicas (Zoologia), Departamento de Sistemática e Ecologia, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, João Pessoa, 58059-900, PB, Brazil
| | - Gustavo B. Paterno
- Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Lagoa Nova, 59072-970, Natal, RN, Brazil
| | - Marcelo Gehara
- Rutgers University–Newark, Department of Biological Sciences, 195 University Avenue, Newark, NJ 07102, USA
| | - Flora A. Juncá
- Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana, BR 116, Km 03, Campus Universitário, 44031-460, Feira de Santana, BA, Brazil
| | - Guilherme F.R. Álvares
- Laboratório de Fauna e Unidades de Conservação, Departamento de Engenharia Florestal, Universidade de Brasília, 70.910-900, Brasília – DF, Brazil
| | - Reuber A. Brandão
- Laboratório de Fauna e Unidades de Conservação, Departamento de Engenharia Florestal, Universidade de Brasília, 70.910-900, Brasília – DF, Brazil
| | - Adrian A. Garda
- Departamento de Botânica e Zoologia, Universidade Federal do Rio Grande do Norte, Campus Universitário, Lagoa Nova, 59072-970, Natal, RN, Brazil
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2
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Schulte LM, Ringler E, Rojas B, Stynoski JL. Developments in Amphibian Parental Care Research: History, Present Advances, and Future Perspectives. HERPETOLOGICAL MONOGRAPH 2020; 34:71-97. [PMID: 38989507 PMCID: PMC7616153 DOI: 10.1655/herpmonographs-d-19-00002.1] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Despite rising interest among scientists for over two centuries, parental care behavior has not been as thoroughly studied in amphibians as it has in other taxa. The first reports of amphibian parental care date from the early 18th century, when Maria Sibylla Merian went on a field expedition in Suriname and reported frog metamorphs emerging from their mother's dorsal skin. Reports of this and other parental behaviors in amphibians remained descriptive for decades, often as side notes during expeditions with another purpose. However, since the 1980s, experimental approaches have proliferated, providing detailed knowledge about the adaptive value of observed behaviors. Today, we recognize more than 30 types of parental care in amphibians, but most studies focus on just a few families and have favored anurans over urodeles and caecilians. Here, we provide a synthesis of the last three centuries of parental care research in the three orders comprising the amphibians. We draw attention to the progress from the very first descriptions to the most recent experimental studies, and highlight the importance of natural history observations as a source of new hypotheses and necessary context to interpret experimental findings. We encourage amphibian parental care researchers to diversify their study systems to allow for a more comprehensive perspective of the behaviors that amphibians exhibit. Finally, we uncover knowledge gaps and suggest new avenues of research using a variety of disciplines and approaches that will allow us to better understand the function and evolution of parental care behaviors in this diverse group of animals.
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Affiliation(s)
- Lisa M. Schulte
- Goethe University Frankfurt, Faculty of Biological Sciences, Max-von-Laue-Strasse 13, 60438Frankfurt, Germany
| | - Eva Ringler
- Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Veterinaerplatz 1, A-1210Vienna, Austria
- University of Vienna, Department of Integrative Zoology, Althanstrasse 14, A-1090Vienna, Austria
| | - Bibiana Rojas
- University of Jyvaskyla, Department of Biology and Environmental Science, P.O. Box 35, 40014, Jyväskylä, Finland
| | - Jennifer L. Stynoski
- Colorado State University, Department of Biology, 200 W. Lake Street, Fort Collins, CO, 48823USA
- Instituto Clodomiro Picado, Universidad de Costa Rica, Dulce Nombre de Coronado, San José, Costa Rica
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3
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Portik DM, Blackburn DC, McGuire JA. Macroevolutionary Patterns of Sexual Size Dimorphism Among African Tree Frogs (Family: Hyperoliidae). J Hered 2020; 111:379-391. [DOI: 10.1093/jhered/esaa019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 06/19/2020] [Indexed: 11/13/2022] Open
Abstract
Abstract
Sexual size dimorphism (SSD) is shaped by multiple selective forces that drive the evolution of sex-specific body size, resulting in male or female-biased SSD. Stronger selection on one sex can result in an allometric body size scaling relationship consistent with Rensch’s rule or its converse. Anurans (frogs and toads) generally display female-biased SSD, but there is variation across clades and the mechanisms driving the evolution of SSD remain poorly understood. We investigated these topics in a diverse family of African treefrogs (Hyperoliidae). Hyperoliids display traits considered rare among amphibians, including sexual dichromatism and protogynous sex change. Using phylogenetic comparative methods, we tested if adult ecology, sexual dichromatism, and sex change were predictors of body size or SSD. We also tested whether hyperoliids displayed allometric interspecific body size scaling relationships. We found a majority of hyperoliid taxa display female-biased SSD, but that adult ecology and sexual dichromatism are poor predictors of sex-specific body size and SSD. Regardless of the groupings analyzed (partitioned by clades or traits), we found support for isometric body size scaling. However, we found that sex change is a significant predictor of SSD variation. Species in the Hyperolius viridiflavus complex, which putatively display this trait, show a significant reduction in SSD and are frequently sexually monomorphic in size. Although protogynous sex change needs to be validated for several of these species, we tentatively propose this trait is a novel mechanism influencing anuran body size evolution. Beyond this association, additional factors that shape the evolution of anuran body size and SSD remain elusive.
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Affiliation(s)
- Daniel M Portik
- California Academy of Sciences, San Francisco, CA
- Museum of Vertebrate Zoology, University of California, Berkeley, CA
| | - David C Blackburn
- Florida Museum of Natural History, University of Florida, Gainesville, FL
| | - Jimmy A McGuire
- Museum of Vertebrate Zoology, University of California, Berkeley, CA
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4
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Portik DM, Bell RC, Blackburn DC, Bauer AM, Barratt CD, Branch WR, Burger M, Channing A, Colston TJ, Conradie W, Dehling JM, Drewes RC, Ernst R, Greenbaum E, Gvoždík V, Harvey J, Hillers A, Hirschfeld M, Jongsma GFM, Kielgast J, Kouete MT, Lawson LP, Leaché AD, Loader SP, Lötters S, Meijden AVD, Menegon M, Müller S, Nagy ZT, Ofori-Boateng C, Ohler A, Papenfuss TJ, Rößler D, Sinsch U, Rödel MO, Veith M, Vindum J, Zassi-Boulou AG, McGuire JA. Sexual Dichromatism Drives Diversification within a Major Radiation of African Amphibians. Syst Biol 2020; 68:859-875. [PMID: 31140573 DOI: 10.1093/sysbio/syz023] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 02/15/2019] [Accepted: 04/09/2019] [Indexed: 01/11/2023] Open
Abstract
Theory predicts that sexually dimorphic traits under strong sexual selection, particularly those involved with intersexual signaling, can accelerate speciation and produce bursts of diversification. Sexual dichromatism (sexual dimorphism in color) is widely used as a proxy for sexual selection and is associated with rapid diversification in several animal groups, yet studies using phylogenetic comparative methods to explicitly test for an association between sexual dichromatism and diversification have produced conflicting results. Sexual dichromatism is rare in frogs, but it is both striking and prevalent in African reed frogs, a major component of the diverse frog radiation termed Afrobatrachia. In contrast to most other vertebrates, reed frogs display female-biased dichromatism in which females undergo color transformation, often resulting in more ornate coloration in females than in males. We produce a robust phylogeny of Afrobatrachia to investigate the evolutionary origins of sexual dichromatism in this radiation and examine whether the presence of dichromatism is associated with increased rates of net diversification. We find that sexual dichromatism evolved once within hyperoliids and was followed by numerous independent reversals to monochromatism. We detect significant diversification rate heterogeneity in Afrobatrachia and find that sexually dichromatic lineages have double the average net diversification rate of monochromatic lineages. By conducting trait simulations on our empirical phylogeny, we demonstrate that our inference of trait-dependent diversification is robust. Although sexual dichromatism in hyperoliid frogs is linked to their rapid diversification and supports macroevolutionary predictions of speciation by sexual selection, the function of dichromatism in reed frogs remains unclear. We propose that reed frogs are a compelling system for studying the roles of natural and sexual selection on the evolution of sexual dichromatism across micro- and macroevolutionary timescales.
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Affiliation(s)
- Daniel M Portik
- Museum of Vertebrate Zoology, University of California, Berkeley, CA 94720, USA.,Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, USA
| | - Rayna C Bell
- Museum of Vertebrate Zoology, University of California, Berkeley, CA 94720, USA.,Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560-0162, USA
| | - David C Blackburn
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Aaron M Bauer
- Department of Biology, Villanova University, 800 Lancaster Avenue, Villanova, PA 19085, USA
| | - Christopher D Barratt
- Department of Environmental Sciences, University of Basel, Basel 4056, Switzerland.,German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig 0413, Germany.,Max Planck Institute for Evolutionary Anthropology, Leipzig 0413, Germany
| | - William R Branch
- Port Elizabeth Museum, P.O. Box 11347, Humewood 6013, South Africa.,Department of Zoology, Nelson Mandela Metropolitan University, P.O. Box 77000, Port Elizabeth 6031, South Africa
| | - Marius Burger
- African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa.,Flora Fauna & Man, Ecological Services Ltd. Tortola, British Virgin, Island
| | - Alan Channing
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa
| | - Timothy J Colston
- Department of Biological Sciences, Florida State University, Tallahassee, FL 32306, USA.,Zoological Natural History Museum, Addis Ababa University, Arat Kilo, Addis Ababa, Ethiopia
| | - Werner Conradie
- Port Elizabeth Museum, P.O. Box 11347, Humewood 6013, South Africa.,School of Natural Resource Management, Nelson Mandela University, George Campus, George 6530, South Africa
| | - J Maximilian Dehling
- Department of Biology, Institute of Sciences, University of Koblenz-Landau, Universitätsstr. 1, D-56070 Koblenz, Germany
| | - Robert C Drewes
- California Academy of Sciences, San Francisco, CA 94118, USA
| | - Raffael Ernst
- Museum of Zoology, Senckenberg Natural History Collections Dresden, Königsbrücker Landstr. 159, Dresden 01109, Germany.,Department of Ecology, Technische Universität Berlin, Rothenburgstr. 12, Berlin 12165, Germany
| | - Eli Greenbaum
- Department of Biological Sciences, University of Texas at El Paso, El Paso, TX 79968, USA
| | - Václav Gvoždík
- The Czech Academy of Sciences, Institute of Vertebrate Biology, Brno, Czech Republic.,Department of Zoology, National Museum, Prague, Czech Republic
| | | | - Annika Hillers
- Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Biodiversity Dynamics, Invalidenstr. 43, Berlin 10115, Germany.,Across the River - A Transboundary Peace Park for Sierra Leone and Liberia, The Royal Society for the Protection of Birds, 164 Dama Road, Kenema, Sierra Leone
| | - Mareike Hirschfeld
- Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Biodiversity Dynamics, Invalidenstr. 43, Berlin 10115, Germany
| | - Gregory F M Jongsma
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Jos Kielgast
- Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, Copenhagen 2100, Denmark
| | - Marcel T Kouete
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Lucinda P Lawson
- Department of Biological Sciences, University of Cincinnati, 614 Rieveschl Hall, Cincinnati, OH 45220, USA.,Life Sciences, Field Museum of Natural History, 1400 S. Lake Shore Dr., Chicago, IL 60605, USA
| | - Adam D Leaché
- Department of Biology, Burke Museum of Natural History and Culture, University of Washington, Seattle, WA, USA
| | - Simon P Loader
- Life Sciences Department, Natural History Museum, London SW7 5BD, UK
| | - Stefan Lötters
- Biogeography Department, Trier University, Universitätsring 15, Trier 54296, Germany
| | - Arie Van Der Meijden
- CIBIO Research Centre in Biodiversity and Genetic Resources, InBIO, Universidade do Porto, Campus Agrario de Vairão, Rua Padre Armando Quintas, No. 7, 4485-661 Vairão, Vila do Conde, Portugal
| | - Michele Menegon
- Tropical Biodiversity Section, Science Museum of Trento, Corso del lavoro e della Scienza 3, Trento 38122, Italy
| | - Susanne Müller
- Biogeography Department, Trier University, Universitätsring 15, Trier 54296, Germany
| | - Zoltán T Nagy
- Royal Belgian Institute of Natural Sciences, OD Taxonomy and Phylogeny, Rue Vautier 29, B-1000 Brussels, Belgium
| | | | - Annemarie Ohler
- Département Origines et Evolution, Muséum National d'Histoire Naturelle, UMR 7205 ISYEB, 25 rue Cuvier, Paris 75005, France
| | | | - Daniela Rößler
- Biogeography Department, Trier University, Universitätsring 15, Trier 54296, Germany
| | - Ulrich Sinsch
- Department of Biology, Institute of Sciences, University of Koblenz-Landau, Universitätsstr. 1, D-56070 Koblenz, Germany
| | - Mark-Oliver Rödel
- Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Biodiversity Dynamics, Invalidenstr. 43, Berlin 10115, Germany
| | - Michael Veith
- Biogeography Department, Trier University, Universitätsring 15, Trier 54296, Germany
| | - Jens Vindum
- California Academy of Sciences, San Francisco, CA 94118, USA
| | - Ange-Ghislain Zassi-Boulou
- Institut National de Recherche en Sciences Exactes et Naturelles, Brazzaville BP 2400, République du Congo
| | - Jimmy A McGuire
- Museum of Vertebrate Zoology, University of California, Berkeley, CA 94720, USA
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5
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Wollenberg Valero KC, Marshall JC, Bastiaans E, Caccone A, Camargo A, Morando M, Niemiller ML, Pabijan M, Russello MA, Sinervo B, Werneck FP, Sites JW, Wiens JJ, Steinfartz S. Patterns, Mechanisms and Genetics of Speciation in Reptiles and Amphibians. Genes (Basel) 2019; 10:genes10090646. [PMID: 31455040 PMCID: PMC6769790 DOI: 10.3390/genes10090646] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/21/2019] [Accepted: 08/05/2019] [Indexed: 12/22/2022] Open
Abstract
In this contribution, the aspects of reptile and amphibian speciation that emerged from research performed over the past decade are reviewed. First, this study assesses how patterns and processes of speciation depend on knowing the taxonomy of the group in question, and discuss how integrative taxonomy has contributed to speciation research in these groups. This study then reviews the research on different aspects of speciation in reptiles and amphibians, including biogeography and climatic niches, ecological speciation, the relationship between speciation rates and phenotypic traits, and genetics and genomics. Further, several case studies of speciation in reptiles and amphibians that exemplify many of these themes are discussed. These include studies of integrative taxonomy and biogeography in South American lizards, ecological speciation in European salamanders, speciation and phenotypic evolution in frogs and lizards. The final case study combines genomics and biogeography in tortoises. The field of amphibian and reptile speciation research has steadily moved forward from the assessment of geographic and ecological aspects, to incorporating other dimensions of speciation, such as genetic mechanisms and evolutionary forces. A higher degree of integration among all these dimensions emerges as a goal for future research.
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Affiliation(s)
| | - Jonathon C Marshall
- Department of Zoology, Weber State University, 1415 Edvalson Street, Dept. 2505, Ogden, UT 84401, USA
| | - Elizabeth Bastiaans
- Department of Biology, State University of New York, College at Oneonta, Oneonta, NY 13820, USA
| | - Adalgisa Caccone
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, USA
| | - Arley Camargo
- Centro Universitario de Rivera, Universidad de la República, Ituzaingó 667, Rivera 40000, Uruguay
| | - Mariana Morando
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC, CENPAT-CONICET) Bv. Brown 2915, Puerto Madryn U9120ACD, Argentina
| | - Matthew L Niemiller
- Department of Biological Sciences, The University of Alabama in Huntsville, Huntsville, AL 35899, USA
| | - Maciej Pabijan
- Department of Comparative Anatomy, Institute of Zoology and Biomedical Research, Jagiellonian University, ul. Gronostajowa 9, 30-387 Kraków, Poland
| | - Michael A Russello
- Department of Biology, University of British Columbia, Okanagan Campus, 3247 University Way, Kelowna, BC V1V 1V7, Canada
| | - Barry Sinervo
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, Coastal Biology Building, 130 McAllister Way, Santa Cruz, CA 95060, USA
| | - Fernanda P Werneck
- Programa de Coleções Científicas Biológicas, Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus 69060-000, Brazil
| | - Jack W Sites
- Department of Biological and Marine Sciences, University of Hull, Cottingham Road, Hull HU6 7RX, UK
| | - John J Wiens
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, USA
| | - Sebastian Steinfartz
- Molecular Evolution and Systematics of Animals, Institute of Biology, University of Leipzig, Talstrasse 33, 04103 Leipzig, Germany
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6
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Integrative evidence confirms new endemic island frogs and transmarine dispersal of amphibians between Madagascar and Mayotte (Comoros archipelago). Naturwissenschaften 2019; 106:19. [DOI: 10.1007/s00114-019-1618-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 04/07/2019] [Accepted: 04/11/2019] [Indexed: 10/26/2022]
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7
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Escalona Sulbarán MD, Ivo Simões P, Gonzalez-Voyer A, Castroviejo-Fisher S. Neotropical frogs and mating songs: The evolution of advertisement calls in glassfrogs. J Evol Biol 2018; 32:163-176. [PMID: 30481406 DOI: 10.1111/jeb.13406] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/19/2018] [Accepted: 11/20/2018] [Indexed: 02/04/2023]
Abstract
Anurans emit advertisement calls with the purpose of attracting mates and repelling conspecific competitors. The evolution of call traits is expected to be associated with the evolution of anatomical and behavioural traits due to the physics of call emission and transmission. The evolution of vocalizations might imply trade-offs with other energetically costly behaviours, such as parental care. Here, we investigated the association between body size, calling site, parental care and call properties (call duration, number of notes, peak frequency, frequency bandwidth and call structure) of the advertisement calls of glassfrogs (Centrolenidae)-a family of Neotropical, leaf-dwelling anurans-using phylogenetic comparative methods. We also explored the tempo and mode of evolution of these traits and compared them with those of three morphological traits associated with body size, locomotion and feeding. We generated and compiled acoustic data for 72 glassfrog species (46% of total species richness), including representatives of all genera. We found that almost all acoustic traits have significant, but generally modest, phylogenetic signal. Peak frequency of calls is significantly associated with body size, whereas call structure is significantly associated with calling site and paternal care. Thus, the evolution of body size, calling site and paternal care could constrain call evolution. The estimated disparity of acoustic traits was larger than that of morphological traits and the peak in disparity of acoustic traits generally occurred later in the evolution of glassfrogs, indicating a historically recent outset of the acoustic divergence in this clade.
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Affiliation(s)
- Moisés D Escalona Sulbarán
- Laboratório de Sistemática de Vertebrados, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Pedro Ivo Simões
- Laboratório de Sistemática de Vertebrados, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Alejandro Gonzalez-Voyer
- Instituto de Ecología, Departamento de Ecología Evolutiva, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Santiago Castroviejo-Fisher
- Laboratório de Sistemática de Vertebrados, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Herpetology, American Museum of Natural History, New York City, New York
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8
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Goutte S, Dubois A, Howard SD, Márquez R, Rowley JJL, Dehling JM, Grandcolas P, Xiong RC, Legendre F. How the environment shapes animal signals: a test of the acoustic adaptation hypothesis in frogs. J Evol Biol 2017; 31:148-158. [PMID: 29150984 DOI: 10.1111/jeb.13210] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 10/19/2017] [Accepted: 11/03/2017] [Indexed: 02/03/2023]
Abstract
Long-distance acoustic signals are widely used in animal communication systems and, in many cases, are essential for reproduction. The acoustic adaptation hypothesis (AAH) implies that acoustic signals should be selected for further transmission and better content integrity under the acoustic constraints of the habitat in which they are produced. In this study, we test predictions derived from the AAH in frogs. Specifically, we focus on the difference between torrent frogs and frogs calling in less noisy habitats. Torrents produce sounds that can mask frog vocalizations and constitute a major acoustic constraint on call evolution. We combine data collected in the field, material from scientific collections and the literature for a total of 79 primarily Asian species, of the families Ranidae, Rhacophoridae, Dicroglossidae and Microhylidae. Using phylogenetic comparative methods and including morphological and environmental potential confounding factors, we investigate putatively adaptive call features in torrent frogs. We use broad habitat categories as well as fine-scale habitat measurements and test their correlation with six call characteristics. We find mixed support for the AAH. Spectral features of torrent frog calls are different from those of frogs calling in other habitats and are related to ambient noise levels, as predicted by the AAH. However, temporal call features do not seem to be shaped by the frogs' calling habitats. Our results underline both the complexity of call evolution and the need to consider multiple factors when investigating this issue.
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Affiliation(s)
- S Goutte
- Muséum national d'Histoire naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 CNRS MNHN UPMC EPHE, Sorbonne Universités, Paris Cedex 05, France
| | - A Dubois
- Muséum national d'Histoire naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 CNRS MNHN UPMC EPHE, Sorbonne Universités, Paris Cedex 05, France
| | - S D Howard
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - R Márquez
- Fonoteca Zoológica, Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain
| | - J J L Rowley
- Australian Museum Research Institute, Australian Museum, Sydney, NSW, Australia.,Centre for Ecosystem Science, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW, Australia
| | - J M Dehling
- Institut für Integrierte Naturwissenschaften, Abteilung Biologie, Universität Koblenz-Landau, Koblenz, Germany
| | - P Grandcolas
- Muséum national d'Histoire naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 CNRS MNHN UPMC EPHE, Sorbonne Universités, Paris Cedex 05, France
| | - R C Xiong
- College of Biological Science and Technology, Liupanshui Normal University, Liupanshui, China
| | - F Legendre
- Muséum national d'Histoire naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 CNRS MNHN UPMC EPHE, Sorbonne Universités, Paris Cedex 05, France
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9
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Nunes-de-Almeida CHL, Assis CL, Feio RN, Toledo LF. Redescription of the Advertisement Call of Five Species of Thoropa (Anura, Cycloramphidae), Including Recordings of Rare and Endangered Species. PLoS One 2016; 11:e0162617. [PMID: 27617833 PMCID: PMC5019406 DOI: 10.1371/journal.pone.0162617] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 08/25/2016] [Indexed: 12/05/2022] Open
Abstract
Frogs of the genus Thoropa comprise six endemic Brazilian species on the Eastern side of the country. Little is known about their natural history, especially about their acoustic communication. Therefore, aiming to provide an overview of their vocalizations, we analyzed and redescribed male advertisement calls of three living and two possibly extinct species. The smaller species, T. petropolitana and T. lutzi, produce simple calls (one single note) with a higher frequency range than the remaining larger ones. On the other hand, the larger species present complex calls, with more than one note: T. megatympanum calls have three notes, T. taophora calls have four notes, and T. miliaris calls varies from three to six notes. Population snout-vent length negatively correlated with peak of dominant frequency as expected. However, highlighted differences between two populations of T. lutzi, which could indicate need of further taxonomic evaluation of those lineages. Peculiar morphology, such as the absence of vocal sacs and slits, may have contributed to their call variation and highly banded frequency structure. If the observed population differences reflect species-level differences, T. lutzi may be classified as a critically endangered species, as T. petropolitana. Furthermore, we provided a suggestion to an unusual behavior in frogs: calling with the mouth open in the smaller species of the genus.
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Affiliation(s)
- Carlos H. L. Nunes-de-Almeida
- Laboratório de História Natural de Anfíbios Brasileiros (LaHNAB), Departamento de Biologia Animal, Instituto de Biologia, Unicamp, Campinas, São Paulo, Brazil
| | - Clodoaldo L. Assis
- Universidade Federal de Viçosa, Departamento de Biologia Animal, Museu de Zoologia João Moojen, Viçosa, Minas Gerais, Brazil
| | - Renato N. Feio
- Universidade Federal de Viçosa, Departamento de Biologia Animal, Museu de Zoologia João Moojen, Viçosa, Minas Gerais, Brazil
| | - Luís Felipe Toledo
- Laboratório de História Natural de Anfíbios Brasileiros (LaHNAB), Departamento de Biologia Animal, Instituto de Biologia, Unicamp, Campinas, São Paulo, Brazil
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10
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Bernardi M, Angielczyk KD, Mitchell JS, Ruta M. Phylogenetic Stability, Tree Shape, and Character Compatibility: A Case Study Using Early Tetrapods. Syst Biol 2016; 65:737-58. [PMID: 27288479 DOI: 10.1093/sysbio/syw049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Accepted: 05/19/2016] [Indexed: 11/13/2022] Open
Abstract
Phylogenetic tree shape varies as the evolutionary processes affecting a clade change over time. In this study, we examined an empirical phylogeny of fossil tetrapods during several time intervals, and studied how temporal constraints manifested in patterns of tree imbalance and character change. The results indicate that the impact of temporal constraints on tree shape is minimal and highlights the stability through time of the reference tetrapod phylogeny. Unexpected values of imbalance for Mississippian and Pennsylvanian time slices strongly support the hypothesis that the Carboniferous was a period of explosive tetrapod radiation. Several significant diversification shifts take place in the Mississippian and underpin increased terrestrialization among the earliest limbed vertebrates. Character incompatibility is relatively high at the beginning of tetrapod history, but quickly decreases to a relatively stable lower level, relative to a null distribution based on constant rates of character change. This implies that basal tetrapods had high, but declining, rates of homoplasy early in their evolutionary history, although the origin of Lissamphibia is an exception to this trend. The time slice approach is a powerful method of phylogenetic analysis and a useful tool for assessing the impact of combining extinct and extant taxa in phylogenetic analyses of large and speciose clades.
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Affiliation(s)
- Massimo Bernardi
- MUSE-Museo delle Scienze, Corso del Lavoro e della Scienza, 3, 38122 Trento, Italy; School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol BS8 1RJ, UK;
| | - Kenneth D Angielczyk
- Integrative Research Center, Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, IL 60605-2496, USA
| | - Jonathan S Mitchell
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48103, USA; and
| | - Marcello Ruta
- School of Life Sciences, Joseph Banks Laboratories, University of Lincoln, Green Lane, Lincoln LN6 7DL, UK
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11
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Goutte S, Dubois A, Howard SD, Marquez R, Rowley JJL, Dehling JM, Grandcolas P, Rongchuan X, Legendre F. Environmental constraints and call evolution in torrent-dwelling frogs. Evolution 2016; 70:811-26. [PMID: 26960074 DOI: 10.1111/evo.12903] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 02/09/2016] [Accepted: 02/16/2016] [Indexed: 02/02/2023]
Abstract
Although acoustic signals are important for communication in many taxa, signal propagation is affected by environmental properties. Strong environmental constraints should drive call evolution, favoring signals with greater transmission distance and content integrity in a given calling habitat. Yet, few empirical studies have verified this prediction, possibly due to a shortcoming in habitat characterization, which is often too broad. Here we assess the potential impact of environmental constraints on the evolution of advertisement call in four groups of torrent-dwelling frogs in the family Ranidae. We reconstruct the evolution of calling site preferences, both broadly categorized and at a finer scale, onto a phylogenetic tree for 148 species with five markers (∼3600 bp). We test models of evolution for six call traits for 79 species with regard to the reconstructed history of calling site preferences and estimate their ancestral states. We find that in spite of existing morphological constraints, vocalizations of torrent-dwelling species are most probably constrained by the acoustic specificities of torrent habitats and particularly their high level of ambient noise. We also show that a fine-scale characterization of calling sites allows a better perception of the impact of environmental constraints on call evolution.
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Affiliation(s)
- Sandra Goutte
- Muséum National d'Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 CNRS MNHN UPMC EPHE, Sorbonne Universités, 57 rue Cuvier, 75231, Paris Cedex 05, France. .,Laboratório de História Natural de Anfíbios Brasileiros, Instituto de Biologia, Universidade Estadual de Campinas, rua Monteiro Lobato, 255, CEP 13083-862, Campinas, São Paulo, Brazil.
| | - Alain Dubois
- Muséum National d'Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 CNRS MNHN UPMC EPHE, Sorbonne Universités, 57 rue Cuvier, 75231, Paris Cedex 05, France
| | - Samuel D Howard
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543, Singapore
| | - Rafael Marquez
- Fonoteca Zoológica, Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (CSIC), C/José Gutiérrez Abascal, 2, 28006, Madrid, Spain
| | - Jodi J L Rowley
- Australian Museum Research Institute, Australian museum 1 College Street, Sydney, NSW, 2010, Australia
| | - J Maximilian Dehling
- Institut für Integrierte Naturwissenschaften, Abteilung Biologie, Universität Koblenz-Landau, Universitätsstraße 1, 56070, Koblenz, Germany
| | - Philippe Grandcolas
- Muséum National d'Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 CNRS MNHN UPMC EPHE, Sorbonne Universités, 57 rue Cuvier, 75231, Paris Cedex 05, France
| | - Xiong Rongchuan
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Frédéric Legendre
- Muséum National d'Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB - UMR 7205 CNRS MNHN UPMC EPHE, Sorbonne Universités, 57 rue Cuvier, 75231, Paris Cedex 05, France
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12
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Wollenberg Valero KC. Evidence for an intrinsic factor promoting landscape genetic divergence in Madagascan leaf-litter frogs. Front Genet 2015; 6:155. [PMID: 26136766 PMCID: PMC4470402 DOI: 10.3389/fgene.2015.00155] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 04/05/2015] [Indexed: 11/16/2022] Open
Abstract
The endemic Malagasy frog radiations are an ideal model system to study patterns and processes of speciation in amphibians. Large-scale diversity patterns of these frogs, together with other endemic animal radiations, led to the postulation of new and the application of known hypotheses of species diversification causing diversity patterns in this biodiversity hotspot. Both extrinsic and intrinsic factors have been studied in a comparative framework, with extrinsic factors usually being related to the physical environment (landscape, climate, river catchments, mountain chains), and intrinsic factors being clade-specific traits or constraints (reproduction, ecology, morphology, physiology). Despite some general patterns emerging from such large-scale comparative analyses, it became clear that the mechanism of diversification in Madagascar may vary among clades, and may be a multifactorial process. In this contribution, I test for intrinsic factors promoting population-level divergence within a clade of terrestrial, diurnal leaf-litter frogs (genus Gephyromantis) that has previously been shown to diversify according to extrinsic factors. Landscape genetic analyses of the microendemic species Gephyromantis enki and its widely distributed, larger sister species Gephyromantis boulengeri over a rugged landscape in the Ranomafana area shows that genetic variance of the smaller species cannot be explained by landscape resistance alone. Both topographic and riverine barriers are found to be important in generating this divergence. This case study yields additional evidence for the probable importance of body size in lineage diversification.
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Affiliation(s)
- Katharina C Wollenberg Valero
- Department of Natural Sciences, College of Science, Engineering and Mathematics, Bethune-Cookman University Daytona Beach, FL, USA
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13
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Maddock ST, Day JJ, Nussbaum RA, Wilkinson M, Gower DJ. Evolutionary origins and genetic variation of the Seychelles treefrog, Tachycnemis seychellensis (Duméril and Bibron, 1841) (Amphibia: Anura: Hyperoliidae). Mol Phylogenet Evol 2014; 75:194-201. [PMID: 24555995 PMCID: PMC4101239 DOI: 10.1016/j.ympev.2014.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 02/06/2014] [Accepted: 02/08/2014] [Indexed: 11/30/2022]
Abstract
The hyperoliid frog Tachycnemis seychellensis, the only species of its genus, is endemic to the four largest granitic islands of the Seychelles archipelago and is reliant on freshwater bodies for reproduction. Its presence in the Seychelles is thought to be the product of a transoceanic dispersal, diverging from the genus Heterixalus, its closest living relative (currently endemic to Madagascar), between approximately 10-35Ma. A previous study documented substantial intraspecific morphological variation among island populations and also among populations within the largest island (Mahé). To assess intraspecific genetic variation and to infer the closest living relative(s) of T. seychellensis, DNA sequence data were generated for three mitochondrial and four nuclear markers. These data support a sister-group relationship between T. seychellensis and Heterixalus, with the divergence between the two occurring between approximately 11-19Ma based on cytb p-distances. Low levels of genetic variation were found among major mitochondrial haplotype clades of T. seychellensis (maximum 0.7% p-distance concatenated mtDNA), and samples from each of the islands (except La Digue) comprised multiple mitochondrial haplotype clades. Two nuclear genes (rag1 and tyr) showed no variation, and the other two (rho and pomc) lacked any notable geographic structuring, counter to patterns observed within presumably more vagile Seychelles taxa such as lizards. The low levels of genetic variation and phylogeographic structure support an interpretation that there is a single but morphologically highly variable species of Seychelles treefrog. The contrasting genetic and morphological intraspecific variation may be attributable to relatively recent admixture during low sea-level stands, ecophenotypic plasticity, local adaptation to different environmental conditions, and/or current and previously small population sizes. Low genetic phylogeographic structure but substantial morphological variation is unusual within anurans.
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Affiliation(s)
- Simon T Maddock
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK; Department of Life Sciences, The Natural History Museum, London SW7 5BD, UK.
| | - Julia J Day
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK
| | - Ronald A Nussbaum
- Museum of Zoology and Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109-1079, USA
| | - Mark Wilkinson
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK; Department of Life Sciences, The Natural History Museum, London SW7 5BD, UK
| | - David J Gower
- Department of Life Sciences, The Natural History Museum, London SW7 5BD, UK
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14
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Recknagel H, Elmer KR, Noonan BP, Raselimanana AP, Meyer A, Vences M. Multi-gene phylogeny of Madagascar’s plated lizards, Zonosaurus and Tracheloptychus (Squamata: Gerrhosauridae). Mol Phylogenet Evol 2013; 69:1215-21. [DOI: 10.1016/j.ympev.2013.06.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 06/08/2013] [Accepted: 06/19/2013] [Indexed: 11/28/2022]
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15
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Reproductive activity and advertisement calls of the Asian common toad Duttaphrynus melanostictus (Amphibia, Anura, Bufonidae) from Bach Ma National Park, Vietnam. Zool Stud 2013. [DOI: 10.1186/1810-522x-52-12] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Abstract
The evolutionary origins of Madagascar's biodiversity remain mysterious despite the fact that relative to land area, there is no other place with consistently high levels of species richness and endemism across a range of taxonomic levels. Most efforts to explain diversification on the island have focused on geographical models of speciation, but recent studies have begun to address the island's accumulation of species through time, although with conflicting results. Prevailing hypotheses for diversification on the island involve either constant diversification rates or scenarios where rates decline through time. Using relative-time-calibrated phylogenies for seven endemic vertebrate clades and a model-fitting framework, I find evidence that diversification rates have declined through time on Madagascar. I show that diversification rates have clearly declined throughout the history of each clade, and models invoking diversity-dependent reductions to diversification rates best explain the diversification histories for each clade. These results are consistent with the ecological theory of adaptive radiation, and, coupled with ancillary observations about ecomorphological and life-history evolution, strongly suggest that adaptive radiation was an important formative process for one of the most species-rich regions on the Earth. These results cast the Malagasy biota in a new light and provide macroevolutionary justification for conservation initiatives.
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17
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Gingras B, Mohandesan E, Boko D, Fitch WT. Phylogenetic signal in the acoustic parameters of the advertisement calls of four clades of anurans. BMC Evol Biol 2013; 13:134. [PMID: 23815403 PMCID: PMC3703296 DOI: 10.1186/1471-2148-13-134] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 06/12/2013] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Anuran vocalizations, especially their advertisement calls, are largely species-specific and can be used to identify taxonomic affiliations. Because anurans are not vocal learners, their vocalizations are generally assumed to have a strong genetic component. This suggests that the degree of similarity between advertisement calls may be related to large-scale phylogenetic relationships. To test this hypothesis, advertisement calls from 90 species belonging to four large clades (Bufo, Hylinae, Leptodactylus, and Rana) were analyzed. Phylogenetic distances were estimated based on the DNA sequences of the 12S mitochondrial ribosomal RNA gene, and, for a subset of 49 species, on the rhodopsin gene. Mean values for five acoustic parameters (coefficient of variation of root-mean-square amplitude, dominant frequency, spectral flux, spectral irregularity, and spectral flatness) were computed for each species. We then tested for phylogenetic signal on the body-size-corrected residuals of these five parameters, using three statistical tests (Moran's I, Mantel, and Blomberg's K) and three models of genetic distance (pairwise distances, Abouheif's proximities, and the variance-covariance matrix derived from the phylogenetic tree). RESULTS A significant phylogenetic signal was detected for most acoustic parameters on the 12S dataset, across statistical tests and genetic distance models, both for the entire sample of 90 species and within clades in several cases. A further analysis on a subset of 49 species using genetic distances derived from rhodopsin and from 12S broadly confirmed the results obtained on the larger sample, indicating that the phylogenetic signals observed in these acoustic parameters can be detected using a variety of genetic distance models derived either from a variable mitochondrial sequence or from a conserved nuclear gene. CONCLUSIONS We found a robust relationship, in a large number of species, between anuran phylogenetic relatedness and acoustic similarity in the advertisement calls in a taxon with no evidence for vocal learning, even after correcting for the effect of body size. This finding, covering a broad sample of species whose vocalizations are fairly diverse, indicates that the intense selection on certain call characteristics observed in many anurans does not eliminate all acoustic indicators of relatedness. Our approach could potentially be applied to other vocal taxa.
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Affiliation(s)
- Bruno Gingras
- Department of Cognitive Biology, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, Vienna A-1090, Austria
| | - Elmira Mohandesan
- Institute of Population Genetics, University of Veterinary Medicine of Vienna, Veterinärplatz 1, Vienna A-1210, Austria
| | - Drasko Boko
- Department of Cognitive Biology, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, Vienna A-1090, Austria
| | - W Tecumseh Fitch
- Department of Cognitive Biology, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, Vienna A-1090, Austria
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18
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Phylogenetic relationships of Trachylepis skink species from Madagascar and the Seychelles (Squamata: Scincidae). Mol Phylogenet Evol 2013; 67:615-20. [DOI: 10.1016/j.ympev.2013.02.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 02/01/2013] [Accepted: 02/02/2013] [Indexed: 01/10/2023]
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19
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Martins LB, Giaretta AA. Advertisement Calls of Two Species ofProceratophrys(Anura: Odontophrynidae) from Minas Gerais, Brazil, with Comments on their Distribution, Taxonomy and Conservation Status. SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2012. [DOI: 10.2994/057.007.0302] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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20
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Gehring PS, Pabijan M, Randrianirina JE, Glaw F, Vences M. The influence of riverine barriers on phylogeographic patterns of Malagasy reed frogs (Heterixalus). Mol Phylogenet Evol 2012; 64:618-32. [DOI: 10.1016/j.ympev.2012.05.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 05/16/2012] [Accepted: 05/18/2012] [Indexed: 01/13/2023]
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21
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22
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Verneau O, Du Preez LH, Laurent V, Raharivololoniaina L, Glaw F, Vences M. The double odyssey of Madagascan polystome flatworms leads to new insights on the origins of their amphibian hosts. Proc Biol Sci 2009; 276:1575-83. [PMID: 19203917 DOI: 10.1098/rspb.2008.1530] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Polystomatid flatworms are parasites of high host specificity, which mainly infect amphibian hosts. Only one polystome species has so far been recorded from Madagascar despite the high species richness and endemicity of amphibians on this island. Out of the 86 screened Malagasy frog species, we recovered polystomes from 25 in the families Ptychadenidae and Mantellidae. Molecular phylogenetic analysis uncovered an unexpected diversity of polystome species belonging to two separate clades: one forming a lineage within the genus Metapolystoma, with one species in Ptychadena and several species in the mantellid host genera Aglyptodactylus and Boophis; and the second corresponding to an undescribed genus that was found in the species of the subfamily Mantellinae in the family Mantellidae. The phylogenetic position of the undescribed genus along with molecular dating suggests that it may have colonized Madagascar in the Late Mesozoic or Early Cainozoic. By contrast, the more recent origin of Metapolystoma in Madagascar at ca 14-2 Myr ago strongly suggests that the ancestors of Ptychadena mascareniensis colonized Madagascar naturally by overseas dispersal, carrying their Metapolystoma parasites. Our findings provide a striking example of how parasite data can supply novel insights into the biogeographic history of their hosts.
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Affiliation(s)
- Olivier Verneau
- Parasitologie Fonctionnelle et Evolutive, Université de Perpignan Via Domitia, 66860 Perpignan Cedex, France.
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23
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Veith M, Kosuch J, Rödel MO, Hillers A, Schmitz A, Burger M, Lötters S. Multiple evolution of sexual dichromatism in African reed frogs. Mol Phylogenet Evol 2009; 51:388-93. [PMID: 19166951 DOI: 10.1016/j.ympev.2008.12.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2008] [Revised: 12/23/2008] [Accepted: 12/24/2008] [Indexed: 11/29/2022]
Affiliation(s)
- Michael Veith
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
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