DOCSLIB.ORG

Ciclo Reproductivo De La Taltuza Orthogeomys Cherriei (Rodentia: Geornyidae) En Costa Rica

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Ciclo Reproductivo De La Taltuza Orthogeomys Cherriei (Rodentia: Geornyidae) En Costa Rica Rev. Biol. Trop., 40(1): 111-115, 1992 Ciclo reproductivo de la taltuza Orthogeomys cherriei (Rodentia: Geornyidae) en Costa Rica RolandoDelgado M. Estación Experimental"Los Diamantes", Ministeriode Agricultura y Ganadería,Guápiles, Limón, CostaRica. (Rec.14- Xll-1990. Acep.8-XI-1991) Abstrad: Pocket gophers (Orlhogeomys cherriei) is a pest in agriculture in Limón, Costa Rica; 232 animals were trapped inseveraJ fanns. They reproduce continuoosly tbroughoot tbe year. Adults of both sexes are found in repro­ ductive condition at any time. Thefe males produce at least 2littersper year (1-4 newboms each). There is no correla­ tionbetween position oí testes and production oí spenn. The position of tbe testes is no! a reliable factor to establish tbereproductive condition in males. Thereis a correlationbetween length of os penis(baculurn) and lengtb of tbetes­ tes; irrespectivelyof its reproductive condition.These pocket gophers disperse above-groond. Key words: Pocket gophers,reproduction, Geomyidae, Rodentia, Orthogeomyscherriei. La taltuza (Orthogeomys cherriei) es un roe­ Vertiente Pacífica en Aserrí, Prov. San José dor cavador de tamaño mediano(ca. 370 g) que (EspecímenesVCR: 77. 78) (Fig 1). constituyeuna pla� paracultivos como pejibaye El presente trabajo tiene como objetivo pre­ (Bactris gasipaes), coco (Coco nucffera), plátano sentar informaci6n sobre el ciclo reproductivo (Musa spp.) y yuca (Manihot esculenta), todos de la especie. cultivos importantesen la zonaatlántica de Costa Rica. Otros plantíos como el chamol y ñampí MATERIAL y METODOS (Dioscorea spp.) y los tutores de por6 (Erythrina spp.) para la pimienta negra (Piper Area de estudio: El trabajo se llev6 a cabo nigrum) tambiénson dafiados(Delgado 1990).El entre Río Frío y Liverpool (Búfalo) (10019'- animal ingresa al cultivo por debajo de la tierra 10001'N, 83050'-83°10'0) desde los 70 a los mediantela progresivacons trucci6n de túneles. 450 m.s.n.m, perose prestó mayor atenci6n a la Delgado (1990) cit6 la distribución en Costa Estaci6n Experimental "Los Diamantes" Rica para la zona atlántica, como Pococí (lOo13'N. 83046'0) del Ministerio de (Guápiles), Guácimo, Jiménez, Siquirres y 28 Agricultura y Ganadería y sus vecindades en el Millas en la Provincia de Lim6n. Sin embargo Cant6n de Pococí (Guápiles), Provincia de nuevos informes (obs. pers. y: G. Stiles, C. Lim6n (Delgado 1990). Los sitiospertenecen a Rodriguez y A. Chaves. como pers.) indican la zona de Bosque Tropical Húmedo una distribuci6n más amplia desde Nicaragua (Holdridge 1987), en estecaso con una precipi­ hasta Liverpool (Búfalo) como localidad más taci6npromedio mensual de 351.36 mm, y con hacia el sur en el atlántico (Hg. 1). También se una temperatura promedio de 28.1 oC (máxi­ encuentra a lo largo de la Cordillera de Tilarán ma) y 20.3 oC (mínima). y Central hacia el lado Pacífico y Atlántico Los animales habían sido eliminados en el (Goodwin1946, Hafner y Hafner1987). Se in­ área durante 1984 y 1985 (Delgado 1990). A cluye dos registros de la especie para la inicios de 1987 ocurri6 una inmigraci6n de las 112 REVISTA DE BIOLOGIA 1ROPlCAL suave presiónen la parte superior al corte para lO· la. obtención de mi exudado. el cual se mezcló con dos gotas de solución fisiológica en un por­ taobjetos para determinar la presencia de esper­ matozoides al microscopio de luz. Estos ma­ chos son considerados en "condiciones repro­ ductivas". La prueba se realizó inmediatamente después de anestesiado el animal. El ciclo reproductivo se estableció en una muestta de 232 animales (I02Q y 87d adul­ tos, 31Q y 12d inmaduros). En este estudio solo tres clases fueron utili­ COSTA RICA zadas para establecer la edad de los animales: o 40KIII adultos, subadultos y jóvenes o inmaduros. de­ ........... bido a la falta de infonnación sobre la tasa de crecimiento y la edad a la cual los inmaduros llegan a la madurez reproductiva Las hembras Fig. 1. Distribuci6n de OrtJwgllomys chllrrilli en Costa se clasificaron comosubadultas sí mosttaban la Rica.Nuevas localidades: números en círados. sínfisis púbica en proceso de reabsorción. crite­ Prov. Alajuela:1 Upsla,2 Cataratas, 3 Villa Quesada. Prov. Heredia: 4 aú1amate,S La Vugen, 7 Puerto Vtejo. Prov. rio utilizado por Hansen y Hisaw (1960. 1925 Limón: 6 Cocorí (Cariari), 8 Río Frío, 9 Los Angeles in Wmg 1960) como seftal de que los folículos (Aguas Frías, Tortuguero), 10 Guápiles, 11 Jiménez, 12 de Graafse encontraban bien desarrollados. Guácimo, 13 Santa Cara, 14 Siquirres, 15 28 Millas, 16 Pacuare, 17 Rio Matina, 18 Liverpool (Búfalo). Prov: Las medidas se hicieron según Hall y Guanacaste: 19 Las Juntas, 20 'I'ilarán. Prov. Puntarenas: 21 Kelson (1959) y 'os especímenes están deposi­ Mmteverde, 22 Esparza. Prov. San José: 23 Asení. Prov. tados en el Museo de Zoología de la Cartago:24 Col, 2STeresa(Turrialba). Universidad de Costa Rica (UCR: 1474-83. 1497). el Field Museum of Natural History de áreas baldías vecinas a los cultivos en la esta­ Chicago y el United States National Museum ción experimental. Otros animales se captura­ ofNatural History deWashÜlgton. D.C. ronen fincas mi�ntras se realizaba un programa de capacitación a los campesinos sobre como RESULTADOS y DISCUSION solucionar el problema de estos roedores en sus cultivos. Proporción de sexos: En la muestta de 232 Muestreo: El esfuerzo de buscar las áreas individuos fueron menos frecuentes los machos de trabajo no fue constante, ya que se aprove­ (42.67%. X2: p<0.05). semejante a lo encontta­ charon las solicitudes de campesinos para eli­ do por Wood (1949) y Wmg (1960) en G. pi­ minar los animales. Para los animales attapa­ netis. No hay diferencia en las proporciones se­ 2 dos. seguí los métodos desarrollados por xuales de los adultos (X : p>O.05 n=189). así Delgado (1990) para ladeterminación del sexo. que ésta se debe a los �duros con una pro­ la edad y el ciclo reproductivo en los animales porción de 2.5Q a 1 d (X : p<0.005; n= 43). capturados el mismo día. Los adultos· se esta­ Esto sugiere una alta tasa de mortalidad de ma­ blecieron como tales cuando habían pasado por chos recién nacidos (Wmg 1960) o podría de­ una época reproductiva o bien se enconttaron berse a que simplemente nacieron más hem­ en condiciones de fecundidad. En las hembras bras. se observó la presencia de la sínfisis púbica pa­ Ciclo reproductivo en las hembras: Un to­ ra distinguir a los inmaduros de los adultos. tal de 31 individuos presentó la sínfISis púbica Los machos que mostraron los testículos pe­ Estehueso púbico.es reabsorbido durante la pu­ queílos y sin espermatozoides se consideraron bertad hasta desaparecer por influencia de las inmaduros. En ellos se midió la .longitud del hormonas ováricas cuando la época de repro­ báculo y los testículos. Se determinó la presen­ ducción se acerca (Hisaw 1923, 1925 in Wing cia de espermatozoides con una incisión en el 1960 y Vaughan 1962. Wood 1949). Así. las epidídimo de cada testículo. Se ejerció una que presentaron sínfisis fueron consideradas DELGADO: Cicloreproductivo de la taltuza 113 o Condicion no reproductiva (CN Rl 111Post- reproductivo � Vascularizocion uterina (V. U.) � V. U. y ,eJido mamario § Hembras con embriones lID Hembros loelando. 10 Hembr(l5 08 0.6 MESES 1 Fig. 2. Características y variación del número de hembras F M A M J JL Ag S o N o de O. Cherrúlien coodidooes no reproductivasy reproduc­ MESES tivaspor mes. Hg. 3. Proporción machos: hembras de O. cherrieien con­ inmaduras, con excepción de seis individuos dicionesreproductivas por mes. que la presentaron en lo� últimos estados �e re­ absmción a manera de hgamento y que sunul­ hembras se encontraban en estado tardío o recien táneamente mostraron los folículos de Graaf pos-reproductivo y en condiciones "recepti�as" muy bien desarrollados. Según Hansen (1960) mientras se encontraban lactando. Esto sugiere estas hembras que mostraron el hueso púbico que las hembras pueden tener un celo pos-parto en reabsorcfon son consideradas subadultas. y dar dos camadasseguidas al año,como lo esta­ Un total de 102 hembras tenía aberturapúbi . blecióDelgado (1990). Otrosestudios de esta fa­ ca: fueron clasificadas como adultas. Esta milia también han demostrado que las hembras muestra se utilizó para. establecer la condición pueden dar dos camadas en rápida sucesión, co­ reproductiva (Figs. 2 y 3). En 25 hembras adul­ mo demostraron Wing (1960) en G. pinetis. tas no hubo evidencia de actividad reproducti­ Miller (1946) en Thomomys bottae, Wight va. Quince tenían tejido mamario en diferentes (1930) en T. quadratus y Wood (1949) en G . grados de desarrollo (reabsorción), pero fueron breviceps. Dixon (1929) encontró que T. bottae consideradas en estadopos-reproductivo porno puededar dos y trescamadas pOIafio. presentar pelos alrededor de las tetas. El hecho Número de crías por camada y camadas de que muestren tejido mamario no implica que por año: En total 31 hembras tenían embrio�es estén lactando. en desarrollo, evidencias de uno o más embno­ Vaughan (1962) y Wing (1960) establecie­ nes desarrollados, pues sus cuernos uterinos es­ ron que hembr.as en estado de receptividad ]as taban muy dilatados. Ocho tenían un embrión, muestran los cuernos uterinos muy vasculariza­ 13 tenían dos, 4 tenían tres y una cuatro em­ dos. Utilizando este criterio se atraparon 13 briones. Cinco hembras mostraronevidencia de hembras en el estado considerado "receptivo", haber dado a luz una cría cada una. Ocho hem­ lo cual 00 es sinónimo de implantación, ya que bras estaban lactando (pig. 2). Así, una hembra es algunaetapa de preparación en el proceso fi­ puede dar desde una hasta cuatro crías por par­ siológico de receptividad. Otras tres hembras iO (X4:1.9, o-(n)=O.72, n=31) con dos camadas que se hallaron en estado de lactancia también mínimo por año como ha sido mencionado en se encontraron en condiciones de "receptivi­ Delgado (1990).
Load more

Recommended publications
  • Geographical Distribution and Niche Conservatism in Populations of Orthogeomys Dariensis (Rodentia: Geomyidae) in the Chocó Biogeographical Region Therya, Vol
    Therya ISSN: 2007-3364 Asociación Mexicana de Mastozoología A. C. Valencia-Mazo, Juan David; Solari, Sergio; Arias-Alzate, Andres Geographical distribution and niche conservatism in populations of Orthogeomys dariensis (Rodentia: Geomyidae) in the Chocó Biogeographical region Therya, vol. 8, no. 3, 2017, pp. 233-240 Asociación Mexicana de Mastozoología A. C. DOI: 10.12933/therya-17-428 Available in: http://www.redalyc.org/articulo.oa?id=402352772008 How to cite Complete issue Scientific Information System Redalyc More information about this article Network of Scientific Journals from Latin America and the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Project academic non-profit, developed under the open access initiative THERYA, 2017, Vol. 8 (3): 233-240 DOI: 10.12933/therya-17-428 ISSN 2007-3364 Geographical distribution and niche conservatism in populations of Orthogeomys dariensis (Rodentia: Geomyidae) in the Chocó Biogeographical region JUAN DAVID VALENCIA-MAZO1*, SERGIO SOLARI1, 2 AND ANDRES ARIAS-ALZATE , 3 1 Grupo Mastozoología, Universidad de Antioquia. Calle 67 No. 53-108. Medellín, Colombia. Email [email protected] (JDVM). 2 Instituto de Biología, Universidad de Antioquia. Calle 70 No. 52-21, Medellín, AA 1226. Antioquia, Colombia. Email sergio.solari@ udea.edu.co (SS). 3 Laboratorio de Análisis Espaciales, Instituto de Biología, Universidad Nacional Autónoma de México. Ciudad de México, México. Email [email protected] (AAA). *Corresponding author The Chocó biogeographic region is among the richest in terms of natural resources, species richness and number of endemisms. Among the species endemic to this region, the pocket gopher, Orthogeomys dariensis (Geomyidae), presents a disjunct distribution on both sides of Serranía Darien-Baudó.
    [Show full text]
  • Hunting Shrines in the Guatemalan Highlands
    J Archaeol Method Theory (2008) 15:300–337 DOI 10.1007/s10816-008-9055-7 Negotiations with the Animate Forest: Hunting Shrines in the Guatemalan Highlands Linda A. Brown & Kitty F. Emery Published online: 10 October 2008 # Springer Science + Business Media, LLC 2008 Abstract Ethnoarchaeological research at highland Maya hunting shrines docu- ments the material remains of interactions between two types of animate beings: humans and the forest. When either active agent enters the others’ domain there are accompanying ceremonial activities to assuage the inherent danger, often leaving physical traces in the material record. These traces, if found in the archaeological record, might reveal similar ancient interactions. Using the material correlates of modern hunting rituals, we explore the utility of ethnoarchaeological research in identifying negotiations with non-human agents associated with the animate forest – an active agent in many societies. Keywords Maya . Ethnoarchaeology . Hunting ceremonialism . Zooarchaeology Introduction Ethnoarchaeology, the study of modern material remains as analogs for ancient activities, can provide valuable data for inferring agency from the archaeological record. This is particularly true in the case of animistic religious practices, where one or more actors are non-physical entities or material objects not afforded agency in our own culture but active participants in other societies. In the pursuit of evidence for interactions between human and non-human agents, the material remains of repeated ceremonial negotiations are valuable. As these negotiations often occur at the boundaries between agent realms, they physically mark important thresholds where human and non-human actors interact. L. A. Brown (*) Department of Anthropology, The George Washington University, Washington, DC 20052, USA e-mail: [email protected] K.
    [Show full text]
  • Zooarchaeological Habitat Analysis of Ancient Maya Landscape Changes
    Journal of Ethnobiology 28(2): 154–178 Fall/Winter 2008 ZOOARCHAEOLOGICAL HABITAT ANALYSIS OF ANCIENT MAYA LANDSCAPE CHANGES KITTY F. EMERYa and ERIN KENNEDY THORNTONb a Environmental Archaeology, Florida Museum of Natural History, Dickinson Hall, Museum Road, 117800 University of Florida, Gainesville, FL 32611-7800 ^[email protected]& b Department of Anthropology, 117305 University of Florida, Gainesville, FL 32611-7305 ^[email protected]& ABSTRACT.—Consensus has not yet been reached regarding the role of human- caused environmental change in the history of Classic Maya civilization. On one side of the debate, researchers argue that growing populations and agricultural expansion resulted in environmental over-exploitation that contributedto societal collapse. Researchers on the other side of the debate propose more gradual environmental change resulting from intentional and sustainable landscape management practices. In this study, we use zooarchaeological data from 23 archaeological sites in 11 inland drainage systems to evaluate the hypothesis of reduction of forest cover due to anthropogenic activities across the temporal and spatial span of the ancient Maya world. Habitat fidelity statistics derived from zooarchaeological data are presented as a proxy for the abundance of various habitat types across the landscape. The results of this analysis do not support a model of extensive land clearance and instead suggest considerable chronological and regional stability in the presence of animals from both mature and secondary forest habitats. Despite relative stability, some chronological variation in land cover was observed, but the variation does not fit expected patterns of increased forest disturbance during periods of greatest population expansion. These findings indicate a complex relationship between the ancient Maya and the forested landscape.
    [Show full text]
  • Fauna from the Lagartero Basurero, Chiapas, Mexico Kristin L
    Florida State University Libraries Electronic Theses, Treatises and Dissertations The Graduate School 2005 Identifying Social Drama in the Maya Region; Fauna from the Lagartero Basurero, Chiapas, Mexico Kristin L. Koželsky Follow this and additional works at the FSU Digital Library. For more information, please contact [email protected] THE FLORIDA STATE UNIVERSITY COLLEGE OF ARTS AND SCIENCES IDENTIFYING SOCIAL DRAMA IN THE MAYA REGION; FAUNA FROM THE LAGARTERO BASURERO, CHIAPAS, MEXICO By KRISTIN L. KOŽELSKY A Thesis submitted to the Department of Anthropology In partial fulfillment of the Requirements for the degree of Masters of Arts Degree Awarded: Spring Semester, 2005 Copyright © 2005 Kristin L. Koželsky All Rights Reserved The members of the Committee approve the thesis of Kristin Koželsky defended on March 16, 2005. _________________________________ Mary E. D. Pohl Professor Directing Thesis _________________________________ Rochelle Marrinan Committee Member _________________________________ William A. Parkinson Committee Member _________________________________ Kitty Emery Committee Member Approved: ___________________________________________ Dean Falk, Chair, Department of Anthropology The Office of Graduate Studies has verified and approved the above named committee members. ii ACKNOWLEDGEMENTS I would like to offer gratitude to Dr. Mary Pohl, who made this thesis possible and provided thoughtful critique and support throughout this research and my studies at Florida State University. I would also like to extend special thanks to Dr. Rochelle Marrinan and Dr. William Parkinson whose critique and intellectual rigor have shaped my approach to archaeology. I would like to acknowledge Dr. Kitty Emery of the Florida Museum of Natural History, whose work has been influential for me; I appreciate her willingness to be a part of this thesis and the opportunity she has given me to work with the zooarchaeological collections at the Museum.
    [Show full text]
  • List of Taxa for Which MIL Has Images
    LIST OF 27 ORDERS, 163 FAMILIES, 887 GENERA, AND 2064 SPECIES IN MAMMAL IMAGES LIBRARY 31 JULY 2021 AFROSORICIDA (9 genera, 12 species) CHRYSOCHLORIDAE - golden moles 1. Amblysomus hottentotus - Hottentot Golden Mole 2. Chrysospalax villosus - Rough-haired Golden Mole 3. Eremitalpa granti - Grant’s Golden Mole TENRECIDAE - tenrecs 1. Echinops telfairi - Lesser Hedgehog Tenrec 2. Hemicentetes semispinosus - Lowland Streaked Tenrec 3. Microgale cf. longicaudata - Lesser Long-tailed Shrew Tenrec 4. Microgale cowani - Cowan’s Shrew Tenrec 5. Microgale mergulus - Web-footed Tenrec 6. Nesogale cf. talazaci - Talazac’s Shrew Tenrec 7. Nesogale dobsoni - Dobson’s Shrew Tenrec 8. Setifer setosus - Greater Hedgehog Tenrec 9. Tenrec ecaudatus - Tailless Tenrec ARTIODACTYLA (127 genera, 308 species) ANTILOCAPRIDAE - pronghorns Antilocapra americana - Pronghorn BALAENIDAE - bowheads and right whales 1. Balaena mysticetus – Bowhead Whale 2. Eubalaena australis - Southern Right Whale 3. Eubalaena glacialis – North Atlantic Right Whale 4. Eubalaena japonica - North Pacific Right Whale BALAENOPTERIDAE -rorqual whales 1. Balaenoptera acutorostrata – Common Minke Whale 2. Balaenoptera borealis - Sei Whale 3. Balaenoptera brydei – Bryde’s Whale 4. Balaenoptera musculus - Blue Whale 5. Balaenoptera physalus - Fin Whale 6. Balaenoptera ricei - Rice’s Whale 7. Eschrichtius robustus - Gray Whale 8. Megaptera novaeangliae - Humpback Whale BOVIDAE (54 genera) - cattle, sheep, goats, and antelopes 1. Addax nasomaculatus - Addax 2. Aepyceros melampus - Common Impala 3. Aepyceros petersi - Black-faced Impala 4. Alcelaphus caama - Red Hartebeest 5. Alcelaphus cokii - Kongoni (Coke’s Hartebeest) 6. Alcelaphus lelwel - Lelwel Hartebeest 7. Alcelaphus swaynei - Swayne’s Hartebeest 8. Ammelaphus australis - Southern Lesser Kudu 9. Ammelaphus imberbis - Northern Lesser Kudu 10. Ammodorcas clarkei - Dibatag 11. Ammotragus lervia - Aoudad (Barbary Sheep) 12.
    [Show full text]
  • Mammal Species of the World Literature Cited
    Mammal Species of the World A Taxonomic and Geographic Reference Third Edition The citation for this work is: Don E. Wilson & DeeAnn M. Reeder (editors). 2005. Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), Johns Hopkins University Press, 2,142 pp. (Available from Johns Hopkins University Press, 1-800-537-5487 or (410) 516-6900 http://www.press.jhu.edu). Literature Cited Abad, P. L. 1987. Biologia y ecologia del liron careto (Eliomys quercinus) en Leon. Ecologia, 1:153- 159. Abe, H. 1967. Classification and biology of Japanese Insectivora (Mammalia). I. Studies on variation and classification. Journal of the Faculty of Agriculture, Hokkaido University, Sapporo, Japan, 55:191-265, 2 pls. Abe, H. 1971. Small mammals of central Nepal. Journal of the Faculty of Agriculture, Hokkaido University, Sapporo, Japan, 56:367-423. Abe, H. 1973a. Growth and development in two forms of Clethrionomys. II. Tooth characters, with special reference to phylogenetic relationships. Journal of the Faculty of Agriculture, Hokkaido University, Sapporo, Japan, 57:229-254. Abe, H. 1973b. Growth and development in two forms of Clethrionomys. III. Cranial characters, with special reference to phylogenetic relationships. Journal of the Faculty of Agriculture, Hokkaido University, Sapporo, Japan, 57:255-274. Abe, H. 1977. Variation and taxonomy of some small mammals from central Nepal. Journal of the Mammalogical Society of Japan, 7(2):63-73. Abe, H. 1982. Age and seasonal variations of molar patterns in a red-backed vole population. Journal of the Mammalogical Society of Japan, 9:9-13. Abe, H. 1983. Variation and taxonomy of Niviventer fulvescens and notes on Niviventer group of rats in Thailand.
    [Show full text]
  • Species Richness and Distribution of Neotropical Rodents, with Conservation Implications
    DOI 10.1515/mammalia-2012-0050 Mammalia 2013; 77(1): 1–19 Giovanni Amori *, Federica Chiozza , Bruce D. Patterson , Carlo Rondinini , Jan Schipper and Luca Luiselli Species richness and distribution of Neotropical rodents, with conservation implications Abstract: The correlates of species richness and conser- Carlo Rondinini: Department of Biology and Biotechnology ‘ Charles vation status of South American rodents were studied Darwin ’ , Viale dell ’ Universit à 32, 00185 Rome , Italy by analyzing the ranges of 791 species (belonging to 159 Jan Schipper: Big Island Invasive Species Committee , 23 East Kawili Street, Hilo, HI 96720 , USA genera and 16 families). The distribution data (size of Luca Luiselli: Centre of Environmental Studies Demetra s.r.l. , 2 each species ’ range in km ) and the relative quantity of Eni Spa Environmental Department, via Olona 7, 00198 Rome , Italy each macrohabitat type (in km 2 ) were obtained from the Global Mammal Assessment data bank of the Interna- tional Union for Conservation of Nature (IUCN), and the Global Land Cover 2000, respectively. We excluded mainly Introduction island species from analyses but included those species that occur on both islands and the mainland. Habitats Macroecological spatial diversity patterns are among were grouped according to seven categories (shrubland, the most intriguing issues in modern ecology and bio- forest, grassland, savannah, wetlands, desert, and artifi- geography theories (e.g., Lennon et al. 2001 , Koleff cial). Mean range sizes varied significantly among fami- et al. 2003a ). Hence, ecologists have spent considerable lies, with members of the family Cuniculidae having larger effort in distinguishing between different components ranges than the species belonging to the rest of the fami- of species diversity, including alpha or local diversity lies.
    [Show full text]
  • DNA Data Support a Rapid Radiation of Pocket Gopher Genera (Rodentia: Geomyidae)
    P1: GAD jomm2004.cls (03/31/2004 v1.1 LaTeX2e JOMM document class) pp1315-jomm-492452 September 11, 2004 14:11 C Journal of Mammalian Evolution, Vol. 11, No. 2, June 2004 (! 2004) DNA Data Support a Rapid Radiation of Pocket Gopher Genera (Rodentia: Geomyidae) Theresa A. Spradling,1,4 Sara V. Brant,2,3 Mark S. Hafner,2 and Christopher J. Dickerson1 In this study, we address the question of phylogenetic relationships in the Geomyidae, focusing primarily on intergeneric relationships within the tribe Geomyini. Our study makes use of DNA sequences from two mitochondrial and two nuclear genes, and we use model-based methods of phylogenetic analysis to infer relationships and determine the level of support for each proposed relationship. Relationships among geomyine pocket gopher genera remain only partially resolved despite a number of earlier attempts to reconstruct their phylogenetic history and despite the newly generated sequence data analyzed in this study. This lack of resolution does not appear to result from insufficient or inappropriate DNA data, nor is it caused by inadequate sampling of taxa. Rather, molecular data and fossil data together lead to the conclusion that diversification within the Geomyini likely occurred during a geologically brief period in the Blancan. Rapid climate change during the Blancan, the origin of patchily distributed grasslands, and the evolution of hypsodonty may have triggered the rapid diversification that eventually produced the five extant genera of the Geomyini. KEY WORDS: Blancan, Geomyidae, Geomyini, Pliocene, pocket gophers, rapid radiation. INTRODUCTION Pocket gophers (Rodentia: Geomyidae) are a frequently studied group of rodents from many aspects, including ecology, behavior, physiology, comparative anatomy, functional morphology, and host–parasite coevolution.
    [Show full text]
  • A New Genus and Two New Species of Unarmed Hymenolepidid Cestodes (Cestoda: Hymenolepididae) from Geomyid Rodents in Mexico and Costa Rica
    Zootaxa 4766 (2): 358–376 ISSN 1175-5326 (print edition) https://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2020 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4766.2.5 http://zoobank.org/urn:lsid:zoobank.org:pub:AAB9F694-5CBE-474F-9D56-4DC10FDD1E84 A new genus and two new species of unarmed hymenolepidid cestodes (Cestoda: Hymenolepididae) from geomyid rodents in Mexico and Costa Rica SCOTT L. GARDNER1, ALTANGEREL T. DURSAHINHAN1, MARIEL L. CAMPBELL2 & S. ELIZABETH RÁCZ1 1Harold W. Manter Laboratory of Parasitology, University of Nebraska State Museum, University of Nebraska-Lincoln, Nebraska 68588-0514, U.S.A. 87131; [email protected] https://orcid.org/0000-0003-3133-740X; [email protected]; racz.eliz@gmail. com 2Museum of Southwestern Biology, Department of Biology, University of New Mexico, Albuquerque, New Mexico; campbell@ carachupa.org Abstract Two new cestodes of the family Hymenolepididae are described from two species of rodents of the family Geomyidae collected in Mexico and Costa Rica. One new species of Hymenolepis is described from Cratogeomys planiceps Merriam 1895 from near Toluca, Mexico and another that we allocate to a new genus is described from Heterogeomys heterodus (Peters, 1865) from near Irazú Volcano, Costa Rica. Hymenolepis s. str. includes those Hymenolepididae with an apical organ, with no hooks on suckers or apical organ, and three testes. Hobergia irazuensis n. gen., n. sp. includes a hymenolepidid with an apical organ, unarmed scolex, small pockets termed foveolae, in which the suckers completely retract, and extremely bi-lobed ovary. Multivariate morphometric analysis showed good separation of these species from all other hymenolepidids possessing an apical organ and lacking a well developed rostellum and rostellar hooks in the Nearctic and Neotropical regions.
    [Show full text]
  • Costa Rica Endemics CAMP 1994.Pdf
    TALLER DE EVALUACION DE CONSERVACION Y PLAN DE MANEJO PARA LAS ESPECIES ENDEMICAS DE COSTA RICA CONSERVATION ASSESSMENT AND MANAGMENT PLAN (CAMP) WORKSHOP FOR COSTA RICAN ENDEMICS REPORT Simon Bolivar Zoo San Jose, Costa Rica 31 Mayo - 2 June 1994 Yolanda Matamoros and Ulysses Seal, Editors Translations by: Danilo Leandro, Leda Malavassi, Patty McDaniel, Carolina Valdespino, Cheryl Asa, and Yolanda Matamoros. Un taller realisado en colaboraci6n con Fundacion pro Zoologicos (FUNDAZOO) IUCN/SSC/CBSG - Grupo Especialists en Reproducci6n y Conservacion SPECIES $Uf:VIVAt. COMMISSION The work of the Conservation Breeding Specialist Group is made possible by generous contributions from the following members of the CBSG Institutional Conservation Council Conservators ($10,000 and above) Fort Wayne Zoological Society Hanham Zoo Belize Zoo Australasian Species Management Program Gladys Porter Zoo Copenhagen Zoo Claws 'n Paws Chicago Zoological Society Indianapolis Zoological Society Cotswold Wildlife Park Darmstadt Zoo Columbus Zoological Gardens International Aviculturists Society Dutch Federation of Zoological Gardens Dreher Park Zoo Denver Zoological Gardens Japanese Association of Zoological Parks Erie Zoological Park Fota Wildlife Park Fossil Rim Wildlife Center and Aquariums Fota Wildlife Park Great Plains Zoo Friends of Zoo Atlanta Jersey Wildlife Preservation Trust Givskud Zoo Hancock House Publisher Greater Los Angeles Zoo Association Lincoln Park Zoo Granby Zoological Society Kew Royal Botanic Gardens International Union of Directors
    [Show full text]
  • Rbp3 in Geomyid Rodents
    Occasional Papers Museum of Texas Tech University Number 296 25 August 2010 RBP 3 IN GEOMYID RODENTS : REDUCED RATE OF MOLECULA R EVOLUTION O R EVIDENCE FO R SELECTION ? ROBE R T D. BR A D LEY , CO D Y W. THOMPSON , AN D RYAN R. CHAMBE R S ABST R ACT DNA sequences from the interphotoreceptor retinoid binding protein gene (Rbp3) in pocket gophers (Geomys) display an unusually slow rate of molecular evolution relative to other species of rodents. Rates of molecular evolution were examined in pocket gophers and other members of the rodent superfamily Geomyoidea to determine if this phenomenon was restricted to pocket gophers. DNA sequences from the Rbp3, mitochondrial 12S ribosomal RNA (12S rRNA), and mitochondrial cytochrome-b (Cytb) genes were compared within members of Geomys, among members of the Geomyidae, and among members of the Geomyoidea to ascertain rates of molecular evolution for the three genes among the various taxa. A variety of analyses (genetic distance, Tajima’s relative rate test, Tajima’s neutrality test, coalescence theory, and Hudson, Kreitman, and Aguadé test) indicated that DNA sequences affiliated with Rbp3 in species of Geomys were evolving at a rate slower than were sequences of members of the Heteromyidae. In addition, there was weak evidence suggesting that the Rbp3 gene in other pocket gopher genera (Cratogeomys, Orthogeomys, Pappogeomys, and Thomomys) evolved more slowly than in members of the Heteromyidae. Key words: geomyoid rodents, Geomys, interphotoreceptor retinoid binding protein, molecular evolution, pocket gophers, Rbp3 INT R ODUCTION Pocket gophers of the genus Geomys are fossorial and are isolated from other conspecific populations.
    [Show full text]
  • The Process and Sociocultural Significance of Gopher Trapping in a Modern Yucatec Maya Community
    Journal of Ethnobiology 19(2); 261-276 Winter 1999 THE PROCESS AND SOCIOCULTURAL SIGNIFICANCE OF GOPHER TRAPPING IN A MODERN YUCATEC MAYA COMMUNITY KEVIN HOVEY Department 0/ Anthropology University o/California, Riverside Riverside, CA 92521-0418 DOM1NIQUE RISSOLO Department of Anthropology University ofCalifornia, Riverside Riverside, CA 92521-0418 ABSTRACT.- Pre-Hispanic and early Spanish texts document animal trapping in the Maya area. Snare traps are used by the modem Maya of the Yucatan peninsula to capture hispid pocket gophers (OrtllogeOnl.lls hispid/ls Le Conte) for human consumption. We describe gopher trapping in the Maya community of Naranjal, Quintana Roo, Mexico, and provide detailed information on Ihe selection of suitable trap lociltions, construction of traditional snare traps, and preparation of gophers for consumption. An anthropological analysis oftrapping behavior reveals new insights into the social function of gopher trapping and the role of trappers in their community. Key Words: Maya, Quintana Roo, Mexico, gopher, snare trap RESUMEN.- EI atrapar animates en la regi6n Maya csta documentado en textos prehispanicos as! como cotoniales tempranos. Las trampas de lazada son utilizadas por los Mayas contemporaneos de la peninsula de Yucatan para capturar tuzas (Orlliogeomys hispidlls Le Conte) para consumo. Observaciones etnograficas del atrapado de luzas en la comunidad Maya de Naranjal, Quintana Roo, Mexico, provcen informaci6n detaltada sobre la selecci6n de lugarcs apropiados para las trampas, la construcci6n de trampas tradicionales, y la preparaci6n de las tuzas para consumo. Un analisis antropol6gico del comportamicnlo asociado con el atrapar provee nuevos cntcndimientos sabre la funci6n social del atrapar tuzas y el papel de los atrapadores en su comunidad.
    [Show full text]