DOCSLIB.ORG

Systematics of the American Marsupial Genus Marmosops (Didelphidae: Thylamyini) Based on Molecular and Morphological Data

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Systematics of the American marsupial genus Marmosops (Didelphidae: Thylamyini) based on molecular and morphological data A DISSERTATION SUBMITTED TO THE FACULTY OF UNIVERSITY OF MINNESOTA BY Juan Fernando Díaz Nieto IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Sharon A. Jansa April 2016 © Juan Fernando Díaz Nieto 2016 ACKNOWLEDGEMENTS This dissertation is the product of contributions from many people over the course of several years, but above all I want to thank my advisor, Sharon A. Jansa for her extreme patience and constant support during all the years I spent in Minnesota and my final years in Colombia. From the first day to the last, Sharon constantly gave me lessons not only about systematics, lab work, English writing, or mammals, but also, with her own day-to-day example, she showed me the value of critical thinking and rigor in the life of a scientist. Without any doubt Sharon will always be an example to follow, thank you Sharon. Another person who merits all my gratitude is Robert S. Voss, who has been more than a vital collaborator in this research (he made significant contributions to all three chapters of this dissertation). Rob has also been a great teacher during my years as a graduate student. From Rob I learned more than just mammalian systematics, probably his most important lessons were: to pay attention to detail, to work hard, and to think before speaking. I feel truly honored to have learned from one of the greatest mammalian systematists. My committee members, Keith Barker, Scott Lanyon, and Andrew Simons were crucial for developing a clear path in what can initially be the obscure road of the dissertation. They were especially helpful in providing advice and asking the right questions that would help me focus my research. Discussion on early stages of my i dissertation chapters were kindly provided by Keith Barker, Lorissa Fujishin, Tom Giarla, and Danielle Drabeck. I am grateful to the many curators and collection support staff that hosted my visits and processed the loans that made this study possible, especially (in no particular order) Alejandra Camacho and Santiago Burneo (QCAZ); Ana Carmignotto (MZUSP); Bruce Patterson and the late Bill Stanley (FMNH); Burton K. Lim and Jacquiline Miller (ROM); Francisco Bisbal-E. and Javier Sánchez-H. (EBRG); Hugo López-Arévalo, Catalina Cárdenas, and Miguel E. Rodríguez-Posada (ICN); James L. Patton, Eileen Lacey, and Chris Conroy (MVZ); John R. Wible and Susan B. McLaren (CM); Joseph Cook and Jonathan Dunnum (MSB); Julián A. Salazar and Juan D. Corrales-Escobar (MHNUC); Kristofer M. Helgen, Linda K. Gordon, and Darrin P. Lunde (USNM); Luis Albuja V. (EPN); Paula Jenkins (BMNH); Phil Myers (UMMZ); Sergio Solari and Juan M. Martínez-C. (CTUA); Teresa Tarifa (CBF); Victor Pacheco (MUSM); Mark Hafner (LSUMZ); Jim Dines ( LACM); François Catzeflis (ISEM); Louise Emmons (for material that will eventually be deposited at MNK), Fernando Quintela (for material that will eventually be deposited at FURB); and Guillermo D’Elía (for material that will eventually be deposited at MNHNP). Diego Alvarado-Serrano, Paul Velazco, and Robert P. Anderson provided DNA and tissue samples collected by each of them in independent fieldwork in Ecuador, Peru, and Venezuela, respectively. I am particularly grateful to James L. Patton for unselfishly sharing with me CYTB sequences from many taxa that helped me to increase the taxon and geographic sampling used in this work. All the laboratory work could not have been accomplished ii without the help of Tom Giarla, Lorissa Fujishin, and Carmen Martin. I would also want to thank Patricia J. Wynne (illustrator-in-residence in the AMNH Department of Mammalogy) for her splendid line art, and Suzann Goldberg (in the AMNH Department of Paleontology) for her excellent cranial photographs, both of their contributions can be appreciated in Chapter 2. This work was funded in part by National Science Foundation research grants DEB-743062 (to Sharon A. Jansa), DEB-743039 (to Robert S. Voss) and by a Doctoral Dissertation Improvement Grant DDIG-1311163 (to Sharon A. Jansa and me). I would also like to acknowledge a Grant-in-Aid of Research from the American Society of Mammalogists and a James W. Wilkie Fund for Natural History Fellowship from the J.F. Bell Museum of Natural History (University of Minnesota), both of which provided additional funding to visit museum collections. I am currently supported by a Francisco José de Caldas Fellowship from the Colombian department of science, technology, and innovation (COLCIENCIAS). My friends in the Twin Cities contributed to my happiness throughout my studies: Maga, Alejo, Cesitar, Jose, María (un abrazo para todos). Tom, Mike, and Danielle generated the best possible working environment in our office, they always had time for a good laugh. Sharon, Keith, Sean, and Alex always welcomed me (and Caro) as members of their home, I will always be grateful for that. Lastly, I want to thank my wife Carito for her unconditional company through many winters in Minnesota, she always gave joy to my life. iii DEDICATION This thesis is dedicated to my mom, Carito and Titi, three women from whom I have received the most important "lectures" of my life. iv ABSTRACT This research presents the results of a collaborative work with Sharon A. Jansa and Robert S. Voss on the taxonomy and systematics of the American marsupials of the genus Marmosops and some of its closely allied forms. Chapter 1 evaluates the species- level diversity of the genus Marmosops using mitochondrial sequences from >200 specimens, including exemplars of every currently recognized species together with a dense intraspecific sampling. These data are analyzed using the General Mixed Yule Coalescent (GMYC) model and the results suggest that the genus could be twice as speciose as currently recognized. Additionally, the phylogenetic relationships within Marmosops are evaluated using sequences of the Breast Cancer Type 1 susceptibility gene (BRCA1). These analyses reveal a basal dichotomy between two ancient, morphologically diagnosable clades. Based on the latter results, a taxonomic proposal is made with the description of a new subgenus, Sciophanes. Chapter 2 includes a revision of the species of subgenus Sciophanes in the context of the molecular analyses of Chapter 1. This revision recognizes 12 valid species in three monophyletic species groups: the Parvidens Group (including M. pakaraimae, M. parvidens, and M. pinheiroi), the Fuscatus Group (M. carri, M. fuscatus, M. handleyi, and M. invictus), and the Bishopi Group (M. bishopi, M. juninensis, M. ojastii, and two new species). For each species, information about type material, ecogeographic distribution, and diagnostic morphological characters is presented. Chapter 3 evaluates the phylogenetic relationships of the tribe Thylamyini (a clade that includes the genus Marmosops) by v using a multi-locus dataset. In particular, this chapter aims to resolve evolutionary relationships of the thylamyine genus Chacodelphys, a monotypic genus that has remained a phylogenetic enigma since its original description in 1930. A previous understanding of the species-level diversity within Marmosops is crucial for constructing a phylogeny of Thyamyini because this genus accounts for almost 45% of the diversity within the tribe. Phylogenetic analyses of these data convincingly resolves Chacodelphys as the sister taxon of Cryptonanus, a genus with which it had not previously been thought to be closely related, and supports most of the previous phylogenetic arrangements obtained within Marmosops. vi TABLE OF CONTENTS LIST OF TABLES ............................................................................................................ x LIST OF FIGURES ......................................................................................................... xi CHAPTER 1. DNA SEQUENCING REVEALS UNEXPECTED RECENT DIVERSITY AND AN ANCIENT DICHOTOMY IN THE AMERICAN MARSUPIAL GENUS MARMOSOPS (DIDELPHIDAE: THYLAMYINI) .............. 1 INTRODUCTION ........................................................................................................ 1 METHODS .................................................................................................................... 4 Taxon Sampling and specimen identification ............................................................. 4 Laboratory methods and sequence alignment ............................................................. 5 Putative species delimitation based on CYTB sequences ......................................... 15 Phylogenetic analyses of BRCA1 and BRCA1 + CYTB ......................................... 18 RESULTS .................................................................................................................... 19 Phylogenetic analyses and species delimitation based on CYTB sequence data ..... 19 Phylogenetic relationships ........................................................................................ 23 DISCUSSION .............................................................................................................. 27 Assessment of species-level diversity and phylogenetics in Marmosops ................. 27 Taxonomic accounts ................................................................................................. 30 Sciophanes, new subgenus ........................................................................................ 30 Subgenus Marmosops Matschie, 1916 ....................................................................
Recommended publications
  • Molecular Systematics of Mouse Opossums (Didelphidae: Marmosa

    Molecular Systematics of Mouse Opossums (Didelphidae: Marmosa

    PUBLISHED BY THE AMERICAN MUSEUM OF NATURAL HISTORY CENTRAL PARK WEST AT 79TH STREET, NEW YORK, NY 10024 Number 3692, 22 pp., 4 figures, 5 tables June 25, 2010 Molecular Systematics of Mouse Opossums (Didelphidae: Marmosa): Assessing Species Limits using Mitochondrial DNA Sequences, with Comments on Phylogenetic Relationships and Biogeography ELIE´ CER E. GUTIE´ RREZ,1,2 SHARON A. JANSA,3 AND ROBERT S. VOSS4 ABSTRACT The genus Marmosa contains 15 currently recognized species, of which nine are referred to the subgenus Marmosa, and six to the subgenus Micoureus. Recent revisionary research based on morphological data, however, suggests that the subgenus Marmosa is more diverse than the currently accepted taxonomy indicates. Herein we report phylogenetic analyses of sequence data from the mitochondrial cytochrome-b gene representing 12 of the 14 morphologically defined taxa recently treated as valid species of Marmosa (Marmosa) in the aforementioned revisionary work. These data provide a basis for testing the monophyly of morphologically defined taxa in the subgenus Marmosa, and they afford the first opportunity to assess phylogenetic relationships among the majority of species currently referred to the genus. Ten of 11 species of Marmosa (Marmosa) represented by multiple sequences in our analyses were recovered as monophyletic. In contrast, our samples of M. mexicana were recovered as two deeply divergent haplogroups that were not consistently associated as sister taxa. Among other results, our analyses support the recognition of M. isthmica and M. simonsi as species distinct from M. robinsoni, and the recognition of M. macrotarsus and M. waterhousei as species distinct from M. murina. The validity of three other species long recognized as distinct (M.
  • Special Publications Museum of Texas Tech University Number 63 18 September 2014

    Special Publications Museum of Texas Tech University Number 63 18 September 2014

    Special Publications Museum of Texas Tech University Number 63 18 September 2014 List of Recent Land Mammals of Mexico, 2014 José Ramírez-Pulido, Noé González-Ruiz, Alfred L. Gardner, and Joaquín Arroyo-Cabrales.0 Front cover: Image of the cover of Nova Plantarvm, Animalivm et Mineralivm Mexicanorvm Historia, by Francisci Hernández et al. (1651), which included the first list of the mammals found in Mexico. Cover image courtesy of the John Carter Brown Library at Brown University. SPECIAL PUBLICATIONS Museum of Texas Tech University Number 63 List of Recent Land Mammals of Mexico, 2014 JOSÉ RAMÍREZ-PULIDO, NOÉ GONZÁLEZ-RUIZ, ALFRED L. GARDNER, AND JOAQUÍN ARROYO-CABRALES Layout and Design: Lisa Bradley Cover Design: Image courtesy of the John Carter Brown Library at Brown University Production Editor: Lisa Bradley Copyright 2014, Museum of Texas Tech University This publication is available free of charge in PDF format from the website of the Natural Sciences Research Laboratory, Museum of Texas Tech University (nsrl.ttu.edu). The authors and the Museum of Texas Tech University hereby grant permission to interested parties to download or print this publication for personal or educational (not for profit) use. Re-publication of any part of this paper in other works is not permitted without prior written permission of the Museum of Texas Tech University. This book was set in Times New Roman and printed on acid-free paper that meets the guidelines for per- manence and durability of the Committee on Production Guidelines for Book Longevity of the Council on Library Resources. Printed: 18 September 2014 Library of Congress Cataloging-in-Publication Data Special Publications of the Museum of Texas Tech University, Number 63 Series Editor: Robert J.
  • Catalogue of the Amphibians of Venezuela: Illustrated and Annotated Species List, Distribution, and Conservation 1,2César L

    Catalogue of the Amphibians of Venezuela: Illustrated and Annotated Species List, Distribution, and Conservation 1,2César L

    Mannophryne vulcano, Male carrying tadpoles. El Ávila (Parque Nacional Guairarepano), Distrito Federal. Photo: Jose Vieira. We want to dedicate this work to some outstanding individuals who encouraged us, directly or indirectly, and are no longer with us. They were colleagues and close friends, and their friendship will remain for years to come. César Molina Rodríguez (1960–2015) Erik Arrieta Márquez (1978–2008) Jose Ayarzagüena Sanz (1952–2011) Saúl Gutiérrez Eljuri (1960–2012) Juan Rivero (1923–2014) Luis Scott (1948–2011) Marco Natera Mumaw (1972–2010) Official journal website: Amphibian & Reptile Conservation amphibian-reptile-conservation.org 13(1) [Special Section]: 1–198 (e180). Catalogue of the amphibians of Venezuela: Illustrated and annotated species list, distribution, and conservation 1,2César L. Barrio-Amorós, 3,4Fernando J. M. Rojas-Runjaic, and 5J. Celsa Señaris 1Fundación AndígenA, Apartado Postal 210, Mérida, VENEZUELA 2Current address: Doc Frog Expeditions, Uvita de Osa, COSTA RICA 3Fundación La Salle de Ciencias Naturales, Museo de Historia Natural La Salle, Apartado Postal 1930, Caracas 1010-A, VENEZUELA 4Current address: Pontifícia Universidade Católica do Río Grande do Sul (PUCRS), Laboratório de Sistemática de Vertebrados, Av. Ipiranga 6681, Porto Alegre, RS 90619–900, BRAZIL 5Instituto Venezolano de Investigaciones Científicas, Altos de Pipe, apartado 20632, Caracas 1020, VENEZUELA Abstract.—Presented is an annotated checklist of the amphibians of Venezuela, current as of December 2018. The last comprehensive list (Barrio-Amorós 2009c) included a total of 333 species, while the current catalogue lists 387 species (370 anurans, 10 caecilians, and seven salamanders), including 28 species not yet described or properly identified. Fifty species and four genera are added to the previous list, 25 species are deleted, and 47 experienced nomenclatural changes.
  • Two New Endangered Species of Anomaloglossus (Anura: Aromobatidae) from Roraima State, Northern Brazil

    Two New Endangered Species of Anomaloglossus (Anura: Aromobatidae) from Roraima State, Northern Brazil

    Zootaxa 3926 (2): 191–210 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2015 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3926.2.2 http://zoobank.org/urn:lsid:zoobank.org:pub:BCA3901A-DF07-4FAF-8386-C24649557313 Two new endangered species of Anomaloglossus (Anura: Aromobatidae) from Roraima State, northern Brazil ANTOINE FOUQUET1,2,8, SERGIO MARQUES SOUZA2, PEDRO M. SALES NUNES2,3, PHILIPPE J. R. KOK4,5, FELIPE FRANCO CURCIO2,6, CELSO MORATO DE CARVALHO7, TARAN GRANT2 & MIGUEL TREFAUT RODRIGUES2 1CNRS Guyane USR3456, Immeuble Le Relais, 2 Avenue Gustave Charlery, 97300, Cayenne, French Guiana 2Universidade de São Paulo, Instituto de Biociências, Departamento de Zoologia, Caixa Postal 11.461,CEP 05508-090, São Paulo, SP, Brazil 3Universidade Federal de Pernambuco, Centro de Ciências Biológicas, Departamento de Zoologia, Av. Professor Moraes Rego, s/n. Cidade Universitária CEP 50670-901, Recife, PE, Brazil 4Biology Department, Amphibian Evolution Lab, Vrije Universiteit Brussel, 2 Pleinlaan, B- 1050 Brussels, Belgium 5Department of Recent Vertebrates, Royal Belgian Institute of Natural Sciences, 29 rue Vautier, B- 1000 Brussels, Belgium 6Universidade Federal de Mato Grosso, Instituto de Biociências, Departamento de Biologia e Zoologia, CEP 78060-900, Cuiaba MT, Brazil 7INPA Núcleo de Pesquisas de Roraima (INPA/NPRR), Rua Coronel Pinto 315 – Centro, 69301-970, Boa Vista, RR, Brazil 8Corresponding author. E-mail: [email protected] Abstract We describe two new species of Anomaloglossus from Roraima State, Brazil, that are likely endemic to single mountains currently isolated among lowland forest and savanna ecosystems. The first species, Anomaloglossus tepequem sp.
  • Uso De La Cola Y El Marsupio En Didelphis Marsupialis Y Metachirus Nudicaudatus (Didelphimorphia: Didelphidae) Para Transportar Material De Anidación

    Uso De La Cola Y El Marsupio En Didelphis Marsupialis Y Metachirus Nudicaudatus (Didelphimorphia: Didelphidae) Para Transportar Material De Anidación

    University of Wollongong Research Online Faculty of Science, Medicine and Health - Papers: part A Faculty of Science, Medicine and Health 1-1-2014 Uso de la cola y el marsupio en Didelphis marsupialis y Metachirus nudicaudatus (Didelphimorphia: Didelphidae) para transportar material de anidación Carlos Delgado-Velez University of Wollongong, [email protected] Andres Arias-Alzate Universidad Nacional Autonoma de Mexico-UNAM Sebastian Aristizabal-Arango Universidad CES Juan D. Sanchez-Londono Universidad CES Follow this and additional works at: https://ro.uow.edu.au/smhpapers Part of the Medicine and Health Sciences Commons, and the Social and Behavioral Sciences Commons Recommended Citation Delgado-Velez, Carlos; Arias-Alzate, Andres; Aristizabal-Arango, Sebastian; and Sanchez-Londono, Juan D., "Uso de la cola y el marsupio en Didelphis marsupialis y Metachirus nudicaudatus (Didelphimorphia: Didelphidae) para transportar material de anidación" (2014). Faculty of Science, Medicine and Health - Papers: part A. 2438. https://ro.uow.edu.au/smhpapers/2438 Research Online is the open access institutional repository for the University of Wollongong. For further information contact the UOW Library: [email protected] Uso de la cola y el marsupio en Didelphis marsupialis y Metachirus nudicaudatus (Didelphimorphia: Didelphidae) para transportar material de anidación Abstract Information about the use of tail to carry nesting material by Neotropical marsupials is poorly documented. Based on videoclips obtained by camera traps, we documented the behavior of gathering and carrying nesting material in curling tails by Didelphis marsupialis and Metachirus nudicaudatus. Additionally, we documented for the fist time an individual of .D marsupialis gathering leaves and other nesting material in the pouch.
  • (Marsupialia: Didelphidae) As a New Host for Gracilioxyuris Agilisis (Nematoda: Oxyuridae) in Brazil Author(S) :Michelle V

    (Marsupialia: Didelphidae) As a New Host for Gracilioxyuris Agilisis (Nematoda: Oxyuridae) in Brazil Author(S) :Michelle V

    Marmosa paraguayana (Marsupialia: Didelphidae) as a New Host for Gracilioxyuris agilisis (Nematoda: Oxyuridae) in Brazil Author(s) :Michelle V. S. Santos-Rondon, Mathias M. Pires, Sérgio F. dos Reis, and Marlene T. Ueta Source: Journal of Parasitology, 98(1):170-174. 2012. Published By: American Society of Parasitologists DOI: http://dx.doi.org/10.1645/GE-2902.1 URL: http://www.bioone.org/doi/full/10.1645/GE-2902.1 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. J. Parasitol., 98(1), 2012, pp. 170–174 F American Society of Parasitologists 2012 MARMOSA PARAGUAYANA (MARSUPIALIA: DIDELPHIDAE) AS A NEW HOST FOR GRACILIOXYURIS AGILISIS (NEMATODA: OXYURIDAE) IN BRAZIL Michelle V. S. Santos-Rondon*, Mathias M. PiresÀ,Se´rgio F. dos Reis, and Marlene T. Ueta Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas, Caixa Postal 6109, 13083-970, Campinas, Sa˜o Paulo, Brazil.
  • (Didelphis Albiventris) and the Thick-Tailed Opossum (Lutreolina Crassicaudata) in Central Argentina

    (Didelphis Albiventris) and the Thick-Tailed Opossum (Lutreolina Crassicaudata) in Central Argentina

    ©2014 Institute of Parasitology, SAS, Košice DOI 10.2478/s11687-014-0229-4 HELMINTHOLOGIA, 51, 3: 198 – 202, 2014 First report of Trichinella spiralis from the white-eared (Didelphis albiventris) and the thick-tailed opossum (Lutreolina crassicaudata) in central Argentina R. CASTAÑO ZUBIETA1, M. RUIZ1, G. MORICI1, R. LOVERA2, M. S. FERNÁNDEZ3, J. CARACOSTANTOGOLO1, R. CAVIA2* 1Instituto Nacional de Tecnología Agropecuaria (INTA Castelar). Instituto de Patobiología, CICVyA, Area de Parasitología; 2Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires and Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA), UBA-CONICET, *E-mail: [email protected]; 3Centro Nacional de Diagnóstico e Investigación en Endemo-Epidemias ANLIS, Ministerio de Salud de la Nación and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Summary Trichinellosis is a zoonotic disease caused by nematodes of infection has been documented in both domestic (mainly the genus Trichinella. Humans, who are the final hosts, pigs) and wild animals (Pozio, 2007). T. spiralis, widely acquire the infection by eating raw or undercooked meat of distributed in different continents (Pozio, 2005), is the different animal origin. Trichinella spiralis is an encapsu- species involved in the domestic cycle that includes pigs lated species that infects mammals and is widely distri- and synanthropic hosts (like rats, marsupials and some buted in different continents. In Argentina, this parasite has carnivores). Humans accidentally acquire the infection by been reported in the domestic cycle that includes pigs and eating raw meat of infected pigs. synanthropic hosts (mainly rats and some carnivores). This In Argentina, according to the current legislation, all is the first report of T.
  • Karyotypes of Brazilian Non-Volant Small Mammals (Didelphidae and Rodentia): an Online Tool for Accessing the Chromosomal Diversity

    Karyotypes of Brazilian Non-Volant Small Mammals (Didelphidae and Rodentia): an Online Tool for Accessing the Chromosomal Diversity

    Genetics and Molecular Biology, 41, 3, 605-610 (2018) Copyright © 2018, Sociedade Brasileira de Genética. Printed in Brazil DOI: http://dx.doi.org/10.1590/1678-4685-GMB-2017-0131 Short Communication Karyotypes of Brazilian non-volant small mammals (Didelphidae and Rodentia): An online tool for accessing the chromosomal diversity Roberta Paresque1, Jocilene da Silva Rodrigues2 and Kelli Beltrame Righetti2 1Departamento de Ciências da Saúde, Centro Universitário Norte do Espírito Santo, Universidade Federal do Espírito Santo, São Mateus, ES, Brazil. 2Departamento de Ciências Agrárias e Biológicas, Centro Universitário Norte do Espírito Santo, Universidade Federal do Espírito Santo, São Mateus, ES, Brazil. Abstract We have created a database system named CIPEMAB (CItogenética dos PEquenos MAmíferos Brasileiros) to as- semble images of the chromosomes of Brazilian small mammals (Rodents and Marsupials). It includes karyotype in- formation, such as diploid number, karyotype features, idiograms, and sexual chromosomes characteristics. CIPEMAB facilitates quick sharing of information on chromosome research among cytogeneticists as well as re- searchers in other fields. The database contains more than 300 microscopic images, including karyotypic images ob- tained from 182 species of small mammals from the literature. Researchers can browse the contents of the database online (http://www.citogenetica.ufes.br). The system enables users to locate images of interest by taxa, and to dis- play the document with detailed information on species names, authors, year of the species publication, and karyo- types pictures in different colorations. CIPEMAB has a wide range of applications, such as comparing various karyotypes of Brazilian species and identifying manuscripts of interest. Keywords: Karyotype diversity, cytogenetic, cytogenetic database.
  • The Biodynamics of Arboreal Locomotion in the Gray Short

    The Biodynamics of Arboreal Locomotion in the Gray Short

    THE BIODYNAMICS OF ARBOREAL LOCOMOTION IN THE GRAY SHORT- TAILED OPOSSUM (MONODELPHIS DOMESTICA) A dissertation presented to the faculty of the College of Arts and Sciences of Ohio University In partial fulfillment of the requirements for the degree Doctor of Philosophy Andrew R. Lammers August 2004 This dissertation entitled THE BIODYNAMICS OF ARBOREAL LOCOMOTION IN THE GRAY SHORT- TAILED OPOSSUM (MONODELPHIS DOMESTICA) BY ANDREW R. LAMMERS has been approved for the Department of Biological Sciences and the College of Arts and Sciences by Audrone R. Biknevicius Associate Professor of Biomedical Sciences Leslie A. Flemming Dean, College of Arts and Sciences LAMMERS, ANDREW R. Ph.D. August 2004. Biological Sciences The biodynamics of arboreal locomotion in the gray short-tailed opossum (Monodelphis domestica). (147 pp.) Director of Dissertation: Audrone R. Biknevicius Most studies of animal locomotor biomechanics examine movement on a level, flat trackway. However, small animals must negotiate heterogenerous terrain that includes changes in orientation and diameter. Furthermore, animals which are specialized for arboreal locomotion may solve the biomechanical problems that are inherent in substrates that are sloped and/or narrow differently from animals which are considered terrestrial. Thus I studied the effects of substrate orientation and diameter on locomotor kinetics and kinematics in the gray short-tailed opossum (Monodelphis domestica). The genus Monodelphis is considered the most terrestrially adapted member of the family Didelphidae, but nevertheless these opossums are reasonably skilled at climbing. The first study (Chapter 2) examines the biomechanics of moving up a 30° incline and down a 30° decline. Substrate reaction forces (SRFs), limb kinematics, and required coefficient of friction were measured.
  • AGILE GRACILE OPOSSUM Gracilinanus Agilis (Burmeister, 1854 )

    AGILE GRACILE OPOSSUM Gracilinanus Agilis (Burmeister, 1854 )

    Smith P - Gracilinanus agilis - FAUNA Paraguay Handbook of the Mammals of Paraguay Number 35 2009 AGILE GRACILE OPOSSUM Gracilinanus agilis (Burmeister, 1854 ) FIGURE 1 - Adult, Brazil (Nilton Caceres undated). TAXONOMY: Class Mammalia; Subclass Theria; Infraclass Metatheria; Magnorder Ameridelphia; Order Didelphimorphia; Family Didelphidae; Subfamily Thylamyinae; Tribe Marmosopsini (Myers et al 2006, Gardner 2007). The genus Gracilinanus was defined by Gardner & Creighton 1989. There are six known species according to the latest revision (Gardner 2007) one of which is present in Paraguay. The generic name Gracilinanus is taken from Latin (gracilis) and Greek (nanos) meaning "slender dwarf", in reference to the slight build of this species. The species name agilis is Latin meaning "agile" referring to the nimble climbing technique of this species. (Braun & Mares 1995). The species is monotypic, but Gardner (2007) considers it to be composite and in need of revision. Furthermore its relationship to the cerrado species Gracilinanus agilis needs to be examined, with some authorities suggesting that the two may be at least in part conspecific - there appear to be no consistent cranial differences (Gardner 2007). Costa et al (2003) found the two species to be morphologically and genetically distinct and the two species have been found in sympatry in at least one locality in Minas Gerais, Brazil (Geise & Astúa 2009) where the authors found that they could be distinguished on external characters alone. Smith P 2009 - AGILE GRACILE OPOSSUM Gracilinanus agilis - Mammals of Paraguay Nº 35 Page 1 Smith P - Gracilinanus agilis - FAUNA Paraguay Handbook of the Mammals of Paraguay Number 35 2009 Patton & Costa (2003) commented that the presence of the similar Gracilinanus microtarsus at Lagoa Santa, Minas Gerais, the type locality for G.agilis , raises the possibility that the type specimen may in fact prove to be what is currently known as G.microtarsus .
  • (Didelphimorphia: Didelphidae), in Costa Rica Author(S): Idalia Valerio-Campos, Misael Chinchilla-Carmona, and Donald W

    (Didelphimorphia: Didelphidae), in Costa Rica Author(S): Idalia Valerio-Campos, Misael Chinchilla-Carmona, and Donald W

    Eimeria marmosopos (Coccidia: Eimeriidae) from the Opossum Didelphis marsupialis L., 1758 (Didelphimorphia: Didelphidae), in Costa Rica Author(s): Idalia Valerio-Campos, Misael Chinchilla-Carmona, and Donald W. Duszynski Source: Comparative Parasitology, 82(1):148-150. Published By: The Helminthological Society of Washington DOI: http://dx.doi.org/10.1654/4693.1 URL: http://www.bioone.org/doi/full/10.1654/4693.1 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Comp. Parasitol. 82(1), 2015, pp. 148–150 Research Note Eimeria marmosopos (Coccidia: Eimeriidae) from the Opossum Didelphis marsupialis L., 1758 (Didelphimorphia: Didelphidae), in Costa Rica 1 1,3 2 IDALIA VALERIO-CAMPOS, MISAEL CHINCHILLA-CARMONA, AND DONALD W. DUSZYNSKI 1 Research Department, Medical Parasitology, Faculty of Medicine, Universidad de Ciencias Me´dicas (UCIMED), San Jose´, Costa Rica, Central America, 10108 (e-mail: [email protected]; [email protected]) and 2 Department of Biology, University of New Mexico, Albuquerque, New Mexico 87131, U.S.A.
  • Thylamys, Didelphidae) and Their Biogeographic Implications

    Thylamys, Didelphidae) and Their Biogeographic Implications

    Revista Chilena de Historia Natural 68:515-522, 1995 Range expansion of two South American mouse opossums (Thylamys, Didelphidae) and their biogeographic implications Ampliaci6n de la distribuci6n geográfica de dos comadrejas enanas de Sudamerica (Thylamys, Didelphidae) y sus implicancias biogeognificas R. EDUARDO PALMA Departamento de Biologia Celular y Genetica, Facultad de Medicina Universidad de Chile, Casilla 70061, Santiago 7, Chile ABSTRACT The range expansion of two South American mouse opossums (Thy/amys, Didelphidae) is reported. On the basis of morphological characters it is concluded that forms identified as Marmosa karimii from the Cerrado of Brazil (State of Mato Grosso), correspond to Thylamys velutinus, a taxon currently recognized for the Atlantic Rainforests of Brazil. Additionally, thylamyines collected in northern Chile (Province of Tarapaca) and previously reported as Marmosa e/egans, represent Thylamys pallidior, a form previously thought to be restricted to the Andean Prepuna of Argentina and Bolivia. The occurrence of this Andean mouse opossum in areas of northern Chile represents a new didelphimorph marsupial for that country. The range expansions of both thylamyines are based on series of specimens collected in northern Chile and central Brazil deposited in the National Museum of Natural History, Smithsonian Institution USA. The range expansion is discussed in light of the historical biogeographic events that affected the southern part of South America during the Plio-Pleistocene, as well as the floristic relatedness of the semi-desertic biomes of the continent. Key words: Marmosa, Andean altiplano, coastal desert, Cerrado, Atlantic rainforests. RESUMEN Se presenta la ampliacion de la distribucion geográfica de dos comadrejas enanas de Sudamérica (Thylamys.