A brief note on the sleeping habits of the giant anteater - Myrmecophaga tridactyla Linnaeus (Xenarthra, Myrmecophagidae)

Medri, Ísis Meri; Mourão, Guilherme

doi:10.1590/s0101-81752005000400061

Cited by 23 publications

(21 citation statements)

References 2 publications

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“…The giant anteater (Myrmecophage tridactyla -Linnaeus, 1758), representative of the suborder Xenarthra and the Pilosa order, it is the largest representative of the Myrmecophagidae Family (Miretzki and Braga, 2014), being found in Southeast Mexico, Central and South America (Ribeiro et al, 2013, Ribeiro et al, 2016, however, in some areas is in extinction (Braga, 2004;Miretzki and Braga, 2014) as a result of environmental destruction such as fires, predatory action by man, illegal traffic and automobile acidentes, besides reproductive and alimentary factors (Medri and Mourão, 2005;Giraldi et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Topography and syntopy of abdominopelvic viscera of the giant anteater (Myrmecophage tridactyla - Linnaeus, 1758)

Oliveira

Lima

Silvino

et al. 2019

Arq. Bras. Med. Vet. Zootec.

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Topography and syntopy of abdominopelvic viscera of the giant anteater (Myrmecophage tridactyla -Linnaeus, 1758)  [Topografia e sintopia das vísceras abdominopélvicas do tamanduá-bandeira (Myrmecophage tridactyla -Linnaeus, 1758)] ABSTRACTIn view of the scarcity of data about the topography and syntopy of abdominopelvic viscera of the giant anteater (Myrmecophage tridactyla -Linnaeus, 1758), the present study aimed to elucidate these characteristics and to compare them with the other animal species, especially the domestic ones. Three specimens, two males and one female, were donated by the Environmental Military Police of Franca to the Anatomy Veterinary Laboratory of the University of Franca, after death by road killings. The animals were fixed and maintained in aqueous 10% formaldehyde solution, followed by conventional dissection of the abdominopelvic cavities for subsequent direct inspection and topographic description of the viscera, aiming at comparative analyzes with other species, whose positioning and particularities are already established in the literature. It was observed that most of the viscera of these cavities have similar location and syntopy to domestic animals, except for the kidneys and testicles. In view of the established methodology and the results obtained, it is accepted that more specimens of anteater, both genera, should be evaluated and registered scientifically to confirm the data of the current research and anatomical preconization of the abdominopelvic cavity, inasmuch anatomical individual variation are possible between animals of the same species. RESUMODiante da escassez de dados sobre a topografia e a sintopia das vísceras abdominopélvicas do tamanduá-bandeira (Myrmecophage tridactyla -Linnaeus, 1758), o presente estudo teve como objetivo elucidar essas características e compará-las com as demais espécies animais, mormente as domésticas. Utilizaram-se três espécimes, dois machos e uma fêmea, provenientes de doação da Polícia Militar Ambiental de Franca ao Laboratório de Anatomia Veterinária da Universidade de Franca, após óbitos por atropelamentos. Os animais foram fixados e mantidos em solução aquosa de formaldeído a 10%, seguidos de dissecação convencional das cavidades abdominopélvicas para posterior inspeção direta e descrição topográfica das vísceras, visando a análises comparativas com outras espécies, cujo posicionamento e cujas particularidades já são bem estabelecidos na literatura. Observou-se que a maioria das vísceras dessas cavidades possuem localização e sintopia similares aos animais domésticos, exceto os rins e os testículos. Diante da metodologia estabelecida e dos resultados obtidos, admite-se que mais espécimes de tamanduás-bandeiras, de ambos os gêneros, devam ser avaliados e registrados cientificamente, visando à confirmação dos dados da atual pesquisa e à preconização anatômica da cavidade abdominopélvica, visto que variações anatômicas individuais são passíveis entre animais da mesma espécie. Palavras-chave: anatomia animal, cavidade abdominopélvica, ...

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Section: Introductionmentioning

confidence: 99%

Topography and syntopy of abdominopelvic viscera of the giant anteater (Myrmecophage tridactyla - Linnaeus, 1758)

Oliveira

Lima

Silvino

et al. 2019

Arq. Bras. Med. Vet. Zootec.

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“…The typical sleeping position reported in the literature involves the animal curling up with the head between the forelegs and the tail draped over the body, the tail at once helping to camouflage the animal and to conserve body heat. Medri & Mourão (2005) reported variations in this sleeping position in Mato Grosso do Sul, Brazil where animals typically slept in clumps of dense bushes. They slept in a small hollow that they scratched with their claws and in 107 observations the tail was draped over the body.…”

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confidence: 99%

Assessing the Assessment, the Relevance of the 2006 Paraguayan Mammal Red List to the Reality of Xenarthra Conservation in 2012

Smith

2012

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“…Thus, this could be a predisposing factor to the high number of roadkills of these animals (Freitas et al 2014). Moreover, the two species of order Pilosa recorded in this study are cathemeral (Medri & Mourão 2005), have large home ranges (M. tridactyla up to 1,190 ha and T. tetradactyla up to 380 ha) (Medri & Mourão 2005, Hayssen 2011), and use a broad variety of habitats, from savanna formations to woodlands (Desbiez & Medri 2010). Despite there were no significant results when testing the effects of activity pattern and home range size on number of roadkills, these characteristics can lead these two species of order Pilosa to move long distances and cross roads and make them more likely to be roadkilled.…”

Section: Coendou Prehensilismentioning

confidence: 69%

Can Human Demographic or Biological Factors Influence Mammal Roadkill? A Case Study in the Go-060 Highway

2019

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Roads cause several environmental impacts, such as roadkill of wild animals, which may result in the decrease of local fauna density. Roadkill occurs because roads intersect the habitats of many taxa, especially in fragmented landscapes, such as the Cerrado biome. The present study aimed to determine whether demographic variables or biological characteristics influence the mammal's roadkill rate. A survey was conducted in the section of the GO-060 highway located between the municipalities of Trindade and Iporá, from April to September 2012, during the dry season. We used Kruskal-Wallis tests to investigate possible differences among roadkills per sector, species, order, food habit, and activity pattern. Pearson correlation was used to verify the association between roadkill rate and home range. The influence of body mass on the roadkill rate was estimated through a simple linear regression. To verify whether human demographic variables influence the roadkill, we used a multiple linear regression. We recorded 89 individuals of mammals during 18 field trips and obtained a roadkill rate of 0.025 individuals/km/day. Mammals with different food habits have different roadkill rates, once herbivorous mammals are less prone to be roadkilled than omnivorous and insectivorous species. Characteristics such as home range, body mass and activity patterns were not determinant of roadkill rates in this study. Similarly, human demographic variables did not influence the number of roadkills. Biological and ecological characteristics should be considered when implementing measures to reduce roadkill. Hence, it becomes clear that surveys of fauna roadkill should consider both human demographic and biological variables, once, in this research, none of them are relevant by itself, they can be considered complementary information, and can be used to support practical actions.

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A brief note on the sleeping habits of the giant anteater - Myrmecophaga tridactyla Linnaeus (Xenarthra, Myrmecophagidae)

Abstract: The scientific literature on giant anteaters states that the animal sleeps with its tail folded over its body to conserve body temperature. However, observations of this species in natural habitats indicate variations in this behavior, depending on the ambient temperature.

Cited by 23 publications

References 2 publications

Topography and syntopy of abdominopelvic viscera of the giant anteater (Myrmecophage tridactyla - Linnaeus, 1758)

Topography and syntopy of abdominopelvic viscera of the giant anteater (Myrmecophage tridactyla - Linnaeus, 1758)

Assessing the Assessment, the Relevance of the 2006 Paraguayan Mammal Red List to the Reality of Xenarthra Conservation in 2012

Can Human Demographic or Biological Factors Influence Mammal Roadkill? A Case Study in the Go-060 Highway

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