The Correct Name of the Endemic Dasypus (Cingulata: Dasypodidae) from Northwestern Argentina
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Dietary Specialization and Variation in Two Mammalian Myrmecophages (Variation in Mammalian Myrmecophagy)
Revista Chilena de Historia Natural 59: 201-208, 1986 Dietary specialization and variation in two mammalian myrmecophages (variation in mammalian myrmecophagy) Especializaci6n dietaria y variaci6n en dos mamiferos mirmec6fagos (variaci6n en la mirmecofagia de mamiferos) KENT H. REDFORD Center for Latin American Studies, Grinter Hall, University of Florida, Gainesville, Florida 32611, USA ABSTRACT This paper compares dietary variation in an opportunistic myrmecophage, Dasypus novemcinctus, and an obligate myrmecophage, Myrmecophaga tridactyla. The diet of the common long-nosed armadillo, D. novemcintus, consists of a broad range of invertebrate as well as vertebrates and plant material. In the United States, ants and termites are less important as a food source than they are in South America. The diet of the giant anteater. M. tridactyla, consists almost entirely of ants and termites. In some areas giant anteaters consume more ants whereas in others termites are a larger part of their diet. Much of the variation in the diet of these two myrmecophages can be explained by geographical and ecological variation in the abundance of prey. However, some variation may be due to individual differences as well. Key words: Dasypus novemcinctus, Myrmecophaga tridactyla, Tamandua, food habits. armadillo, giant anteater, ants, termites. RESUMEN En este trabajo se compara la variacion dietaria entre un mirmecofago oportunista, Dasypus novemcinctus, y uno obligado, Myrmecophaga tridactyla. La dieta del armadillo comun, D. novemcinctus, incluye un amplio rango de in- vertebrados así como vertebrados y materia vegetal. En los Estados Unidos, hormigas y termites son menos importantes como recurso alimenticio de los armadillos, de lo que son en Sudamérica. La dieta del hormiguero gigante, M tridactyla, está compuesta casi enteramente por hormigas y termites. -
Distinguishing Quaternary Glyptodontine Cingulates in South America: How Informative Are Juvenile Specimens?
Distinguishing Quaternary glyptodontine cingulates in South America: How informative are juvenile specimens? CARLOS A. LUNA, IGNACIO A. CERDA, ALFREDO E. ZURITA, ROMINA GONZALEZ, M. CECILIA PRIETO, DIMILA MOTHÉ, and LEONARDO S. AVILLA Luna, C.A., Cerda, I.A., Zurita, A.E., Gonzalez, R., Prieto, M.C., Mothé, D., and Avilla, L.S. 2018. Distinguishing Quaternary glyptodontine cingulates in South America: How informative are juvenile specimens? Acta Palaeontologica Polonica 63 (1): 159–170. The subfamily Glyptodontinae (Xenarthra, Cingulata) comprises one of the most frequently recorded glyptodontids in South America. Recently, the North American genus Glyptotherium was recorded in South America, in addition to the genus Glyptodon. It has been shown that both genera shared the same geographic distribution in central-north and eastern areas of South America (Venezuela and Brazil, respectively). Although some characters allow differentiation between adult specimens of both genera, the morphological distinction between these two genera is rather difficult in juvenile specimens. In this contribution, a detailed morphological, morphometric and histological survey of a juvenile specimen of Glyptodontinae recovered from the Late Pleistocene of northern Brazil is performed. The relative lower osteoderms thickness, the particular morphology of the annular and radial sulci and the distal osseous projections of the caudal osteoderms suggest that the specimen belongs to the genus Glyptotherium. In addition, the validity of some statistical tools to distinguish between different ontogenetic stages and in some cases between genera is verified. The osteoderm microstructure of this juvenile individual is characterized by being composed of a cancellous internal core surrounded by a compact bone cortex. Primary bone tissue mostly consists of highly vascularized, woven-fibered bone tissue. -
(Dasypus) in North America Based on Ancient Mitochondrial DNA
bs_bs_banner A revised evolutionary history of armadillos (Dasypus) in North America based on ancient mitochondrial DNA BETH SHAPIRO, RUSSELL W. GRAHAM AND BRANDON LETTS Shapiro, B. Graham, R. W. & Letts, B.: A revised evolutionary history of armadillos (Dasypus) in North America based on ancient mitochondrial DNA. Boreas. 10.1111/bor.12094. ISSN 0300-9483. The large, beautiful armadillo, Dasypus bellus, first appeared in North America about 2.5 million years ago, and was extinct across its southeastern US range by 11 thousand years ago (ka). Within the last 150 years, the much smaller nine-banded armadillo, D. novemcinctus, has expanded rapidly out of Mexico and colonized much of the former range of the beautiful armadillo. The high degree of morphological similarity between these two species has led to speculation that they might be a single, highly adaptable species with phenotypical responses and geographical range fluctuations resulting from environmental changes. If this is correct, then the biology and tolerance limits for D. novemcinctus could be directly applied to the Pleistocene species, D. bellus. To investigate this, we isolated ancient mitochondrial DNA from late Pleistocene-age specimens of Dasypus from Missouri and Florida. We identified two genetically distinct mitochondrial lineages, which most likely correspond to D. bellus (Missouri) and D. novemcinctus (Florida). Surprisingly, both lineages were isolated from large specimens that were identified previously as D. bellus. Our results suggest that D. novemcinctus, which is currently classified as an invasive species, was already present in central Florida around 10 ka, significantly earlier than previously believed. Beth Shapiro ([email protected]), Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA 95064, USA; Russell W. -
Nine-Banded Armadillo (Dasypus Novemcinctus) Michael T
Nine-banded Armadillo (Dasypus novemcinctus) Michael T. Mengak Armadillos are present throughout much of Georgia and are considered an urban pest by many people. Armadillos are common in central and southern Georgia and can easily be found in most of Georgia’s 159 counties. They may be absent from the mountain counties but are found northward along the Interstate 75 corridor. They have poorly developed teeth and limited mobility. In fact, armadillos have small, peg-like teeth that are useful for grinding their food but of little value for capturing prey. No other mammal in Georgia has bony skin plates or a “shell”, which makes the armadillo easy to identify. Just like a turtle, the shell is called a carapace. Only one species of armadillo is found in Georgia and the southeastern U.S. However, 20 recognized species are found throughout Central and South America. These include the giant armadillo, which can weigh up to 130 pounds, and the pink fairy armadillo, which weighs less than 4 ounces. Taxonomy Order Cingulata – Armadillos Family Dasypodidae – Armadillo Nine-banded Armadillo – Dasypus novemcinctus The genus name Dasypus is thought to be derived from a Greek word for hare or rabbit. The armadillo is so named because the Aztec word for armadillo meant turtle-rabbit. The species name novemcinctus refers to the nine movable bands on the middle portion of their shell or carapace. Their common name, armadillo, is derived from a Spanish word meaning “little armored one.” Figure 1. Nine-banded Armadillo. Photo by author, 2014. Status Armadillos are considered both an exotic species and a pest. -
The Conservation Game
From Penguins to Pandas - the conservation game Armadillo Fact Files © RZSS 2014 Armadillos There are 21 species of armadillo. They are divided into 8 groups: dwarf fairy giant hairy long nosed naked tail three banded yellow banded All armadillos have an outer covering of strong bony plates and horny skin. Most of the species can bring their legs in under this covering to protect themselves but it is only the three banded armadillos that can roll up into a tight ball. Most are active at night (nocturnal) and have poor eyesight but very good hearing and sense of smell. They all have large claws on their front feet to dig for insects and for burrowing. There is little known about some species of armadillo. At the time of writing (May 2014), the Royal Zoological Society of Scotland (RZSS) are studying four species - giant, southern naked tail, nine banded and yellow banded. Edinburgh Zoo, owned by RZSS holds 2 species, the larger hairy and the southern three banded. These animals are not on show but are sometimes seen in our animal presentations, such as ‘Animal Antics’. Armadillo in different languages Portuguese: tatu Spanish: armadillo (it means ‘little armoured one’ in Spanish) French: tatou Mandarin Chinese: 犰狳 (qiu yu) 2 Dwarf armadillo 1 species dwarf or pichi (Zaedyus pichiy) Distribution Argentina and Chile Diet insects, spiders and plants Breeding gestation 60 days litter size 1 - 2 Size Length: 26 - 33cm Tail length 10 - 14cm Weight 1 - 1.5kg Interesting facts comes out in daytime unlike most other species, it hibernates over -
The Redisc~Very of the Brazilian Three Ba~Ded A,Rmadillo and Notes on Its Conservation Status - , •~ ;;
The redisc~very of the Brazilian three ba~ded a,rmadillo and notes on its conservation status - , •~ ;; Ilmar B. Santos Funda9ilo Biodiversitas, Rua Maria Vaz de Melo, 7L Belo Horizonte, MG 31260-110 l;lrazil. Gustavo A. B. da Fonseca Depart~mento de Zoologia, Instituto de Ciencias Biologicas, Universidade Federal de Minas Gerais, Av. Antonio Carlos, 6627. Belo Horizonte, MG 31270-110 Brazil. Sonia E. Rigueira Conservation International, Av. Antonio AbraMo Caram, 820/302. Belo Horizonte, MG 31275-000 Brazil. Ricardo B. Machado Funda9ilo Biodiversitas, Rua MariaVaz de Melo, 7L Belo Horizonte MG 31260-110 Brazil. Abstract A recent survey in the northern part of Bahia state, the most recent observations were from Coimbrac Brazil, has revealed the presence of Brazilian three Filho and Moojen in 1958 (Coimbra~Filho, 1972), banded armadillos Tolypeutes tricinctus, a species in the Alto Jaguaribe region (state of ·ceara) and that had not been seen alive by the scientific Barreiras (state of Bahia). As far back as 1964-68 a community for at least 20 years. The factors that led questionnaire used in the state of Bahia revealed to the decline of the species continue to operate, that T. tricinctus was already extremely rare and three-banded armadillos face an uncertain because of overhunting (Paiva, 1972) .. future. Intensive surveys in the presumed area of distribution of the species are urgently needed so Only six specimens with complete collecting I that a management plan for this endemic Brazilian information are known from the world's museums edentate can be developed. and recent studies throughout its distribution range failed to locate wild populations (Mares et al., Introduction Wetzel, 1981; A Langguth, pers. -
Chaetophractus Vellerosus (Cingulata: Dasypodidae)
MAMMALIAN SPECIES 48(937):73–82 Chaetophractus vellerosus (Cingulata: Dasypodidae) ALFREDO A. CARLINI, ESTEBAN SOIBELZON, AND DAMIÁN GLAZ www.mammalogy.org División Paleontología de Vertebrados, Museo de La Plata, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, CONICET, Paseo del Bosque s/n, 1900 La Plata, Argentina; [email protected] (AAC); [email protected]. ar (ES) Downloaded from https://academic.oup.com/mspecies/article-abstract/48/937/73/2613754 by guest on 04 September 2019 Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, 122 y 60, 1900 La Plata, Argentina; dglaz@ciudad. com.ar (DG) Abstract: Chaetophractus vellerosus (Gray, 1865) is commonly called Piche llorón or screaming hairy armadillo. Chaetophractus has 3 living species: C. nationi, C. vellerosus, and C. villosus of Neotropical distribution in the Bolivian, Paraguayan, and Argentinean Chaco and the southeastern portion of Buenos Aires Province. C. vellerosus prefers xeric areas, in high and low latitudes, with sandy soils, but is able to exist in areas that receive more than twice the annual rainfall found in the main part of its distribution. It is com- mon in rangeland pasture and agricultural areas. C. vellerosus is currently listed as “Least Concern” by the International Union for Conservation of Nature and Natural Resources and is hunted for its meat and persecuted as an agricultural pest; however, the supposed damage to agricultural-farming lands could be less than the beneficial effects of its predation on certain species of damaging insects. Key words: Argentina, armadillo, Bolivia, dasypodid, Paraguay, South America, Xenarthra Synonymy completed 1 January 2014 DOI: 10.1093/mspecies/sew008 Version of Record, first published online September 19, 2016, with fixed content and layout in compliance with Art. -
Osteoderm Microstructure of Riostegotherium Yanei, the Oldest Xenarthra
Anais da Academia Brasileira de Ciências (2019) 91(Suppl. 2): e20181290 (Annals of the Brazilian Academy of Sciences) Printed version ISSN 0001-3765 / Online version ISSN 1678-2690 http://dx.doi.org/10.1590/0001-3765201920181290 www.scielo.br/aabc | www.fb.com/aabcjournal Osteoderm microstructure of Riostegotherium yanei, the oldest Xenarthra LÍLIAN P. BERGQVIST1, PAULO VICTOR LUIZ G.C. PEREIRA2, ALESSANDRA S. MACHADO3, MARIELA C. DE CASTRO4, LUIZA B. MELKI2 and RICARDO T. LOPES3 1Departamento de Geologia, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos 274, Bl. G, Sala G1053, Ilha do Fundão, 21941-611 Rio de Janeiro, RJ, Brazil 2Programa de Pós-graduação em Geologia, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos 274, Bl. G, sala G1053, Ilha do Fundão, 21941-611 Rio de Janeiro, RJ, Brazil 3Laboratório de Instrumentação Nuclear, Universidade Federal do Rio de Janeiro. Centro de Tecnologia, Bloco I, Sala I-133, Ilha do Fundão, 21941-972 Rio de Janeiro, RJ, Brazil 4Departamento de Ciências Biológicas, IBiotec, Universidade Federal de Goiás, Regional Catalão, Av. Castelo Branco, s/n, St. Universitário Campus II, Sala 6, 75704-020 Catalão, GO, Brazil Manuscript received on December 3, 2018; accepted for publication on May 3, 2019 How to cite: BERGQVIST LP, PEREIRA PVLGC, MACHADO AS, CASTRO MC, MELKI LB AND LOPES RT. 2019. Osteoderm microstructure of Riostegotherium yanei, the oldest Xenarthra. An Acad Bras Cienc 91: e20181290. DOI 10.1590/0001-3765201920181290. Abstract: Riostegotherium yanei from the Itaboraí Basin, Brazil, is the oldest known Xenarthra. This paper aims to describe the internal morphology of the osteoderms of Riostegotherium yanei from the perspective of histology and micro-CT approaches, expanding the available data on cingulate osteoderm microstructure. -
(Zaedyus Pichiy) in Mendoza Province, Argentina
University of New Orleans ScholarWorks@UNO University of New Orleans Theses and Dissertations Dissertations and Theses 12-15-2007 Natural history of the pichi (Zaedyus pichiy) in Mendoza Province, Argentina Mariella Superina University of New Orleans Follow this and additional works at: https://scholarworks.uno.edu/td Recommended Citation Superina, Mariella, "Natural history of the pichi (Zaedyus pichiy) in Mendoza Province, Argentina" (2007). University of New Orleans Theses and Dissertations. 604. https://scholarworks.uno.edu/td/604 This Dissertation is protected by copyright and/or related rights. It has been brought to you by ScholarWorks@UNO with permission from the rights-holder(s). You are free to use this Dissertation in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/ or on the work itself. This Dissertation has been accepted for inclusion in University of New Orleans Theses and Dissertations by an authorized administrator of ScholarWorks@UNO. For more information, please contact [email protected]. Natural history of the pichi (Zaedyus pichiy) in Mendoza Province, Argentina A Dissertation Submitted to the Graduate Faculty of the University of New Orleans in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Conservation Biology by Mariella Superina Med. vet., Universität Zürich, 1998 Dr. med. vet., Universität Zürich, 2000 December, 2007 Copyright 2007, Mariella Superina ii ACKNOWLEDGEMENTS This work would not have been possible without the support and assistance of many friends, colleagues, family members, and locals from Mendoza Province. -
Ninebanded Armadillo (Dasypus Novemcinctus)
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln USDA National Wildlife Research Center - Staff U.S. Department of Agriculture: Animal and Publications Plant Health Inspection Service 2004 Ninebanded Armadillo (Dasypus novemcinctus) Michael T. Mengak University of Georgia, Athens Follow this and additional works at: https://digitalcommons.unl.edu/icwdm_usdanwrc Part of the Environmental Sciences Commons Mengak, Michael T., "Ninebanded Armadillo (Dasypus novemcinctus)" (2004). USDA National Wildlife Research Center - Staff Publications. 959. https://digitalcommons.unl.edu/icwdm_usdanwrc/959 This Article is brought to you for free and open access by the U.S. Department of Agriculture: Animal and Plant Health Inspection Service at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in USDA National Wildlife Research Center - Staff Publications by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. NATURAL HISTORY Publication Series NHS – 05 – 04 September 2005 Ninebanded Armadillo (Dasypus novemcinctus) Michael T. Mengak 1 Introduction Scientists classify armadillos with anteaters and sloths. This tells us that they have poorly developed teeth and limited mobility. In fact, armadillos have small, peg-like teeth that are useful for grinding their food but of little value for capturing prey. No other mammal in Georgia has bony skin plates or a “shell”, which makes the armadillo easy to identify. Just like a turtle, the shell is called a carapace. Armadillos are common in central and southern Georgia and are moving northward. Only one species of armadillo lives in Georgia and the southeastern U.S. However, 20 recognized species are found throughout Central and South America. These include the giant armadillo, which can weigh up to 130 pounds and the pink fairy armadillo which weighs less than 4 ounces. -
Nine-Banded Armadillo Dasypus Novemcinctus ILLINOIS RANGE
nine-banded armadillo Dasypus novemcinctus Kingdom: Animalia FEATURES Phylum: Chordata The nine-banded armadillo is covered with bony Class: Mammalia plates of armor under a leathery skin. There is a Order: Cingulata bony shield on top of the head. This mammal has a long, pointed snout. Its ears are large, and its tail is Family: Dasypodidae long and encased in bony rings. The feet have long, ILLINOIS STATUS stout claws. There are four toes on the front feet and five toes on the hind feet. The body is about common, nonnative 23.5 – 31.5 inches long plus a tail of 9.5 to 15.0 inches in length. The teeth are peg-shaped. There are no incisors or canines. BEHAVIORS Not a lot is known about the life history of the armadillo in Illinois since it has recently expanded its range and moved into the state, so its life history information in this account is based on its activities in states further south and southwest. In Illinois, it has been found throughout the state, but it probably cannot survive the winter conditions in the northern half of the state. It digs burrows in the ground in stream banks, under stumps and logs, under shrubs and under buildings. Some burrows will contain a nest of plant materials. Armadillos are usually active at night, dusk and dawn, although they are more likely to be active during the day in winter. They do not hibernate. They can swim, and they can also ILLINOIS RANGE walk on the bottom of small streams and ponds for several minutes. -
For Peer Review Only
Page 1 of 46 Journal of Anatomy 1 Page heading: Middle ear of Chlamyphorus truncatus 2 The middle ear of the pink fairy armadillo Chlamyphorus 3 truncatus (Xenarthra, Cingulata, Chlamyphoridae): comparison 4 with armadillo relatives using computed tomography 5 For Peer Review Only 6 Ana P. Basso1,2, Nora S. Sidorkewicj1,2, Emma B. Casanave2,3, Matthew J. Mason4 7 1Departamento de Biología, Bioquímica y Farmacia, Cátedra de Anatomía Comparada, 8 Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina 9 2Instituto de Investigaciones Biológicas y Biomédicas del Sur (INBIOSUR), UNS y Consejo 10 Nacional de Investigaciones Científicas y Técnicas (CONICET), Bahía Blanca, Argentina 11 3Departamento de Biología, Bioquímica y Farmacia, Cátedra de Fisiología Animal, UNS, Bahía 12 Blanca, Argentina 13 4Department of Physiology, Development & Neuroscience, University of Cambridge, Cambridge, 14 UK 15 16 Abstract 17 The pink fairy armadillo Chlamyphorus truncatus is the smallest extant armadillo and one of 18 the least-known fossorial mammals. The aim of this study was to establish if its middle ear is 19 specially adapted to the subterranean environment, through comparison with more epigeic 20 relatives of the groups Euphractinae (Chaetophractus villosus, Chaetophractus vellerosus, 21 Zaedyus pichiy) and Dasypodinae (Dasypus hybridus). We examined the middle ears using 22 micro-computed tomography and subsequent 3D reconstructions. Dasypus hybridus has a 23 relatively small middle ear cavity, an incomplete bulla and ‘ancestral’ ossicular morphology. 1 Journal of Anatomy Page 2 of 46 24 The other species, including Chlamyphorus, have fully ossified bullae and middle ear ossicles 25 with a morphology between ‘transitional’ and ‘freely mobile’, but in all armadillos the malleus 26 retains a long anterior process.