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| Moraes-Barros,Nadia de; Morgante,João Stenghel. |
| Museum collections have been widely used as sources of biological samples for molecular biology studies and there are several methodologies and techniques to obtain and analyze DNA from tissues archived in museums, but most of these protocols have been developed for a specific tissue or are commercial kits. We present a simple protocol for extracting and amplifying DNA segments from sloth museum specimens. With this simple protocol we analyzed DNA fragments from 64% of 64 skin samples from three-toed sloths (Bradypus variegatus and Bradypus tridactylus) archived in three different museums: 43 samples from the University of São Paulo Museum of Zoology (Museu de Zoologia da Universidade de São Paulo, MUZUSP) São Paulo, São Paulo, Brazil; 18 samples from the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bradypus; DNA; Dried skins; Museum specimens. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000600024 |
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| Gilmore,D.P.; Da-Costa,C.P.; Duarte,D.P.F.. |
| Physiological and pharmacological research undertaken on sloths during the past 30 years is comprehensively reviewed. This includes the numerous studies carried out upon the respiratory and cardiovascular systems, anesthesia, blood chemistry, neuromuscular responses, the brain and spinal cord, vision, sleeping and waking, water balance and kidney function and reproduction. Similarities and differences between the physiology of sloths and that of other mammals are discussed in detail. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Xenarthra; Sloths; Bradypus; Choloepus; Physiology. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000200001 |
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| Duarte,D.P.F.; Silva,V.L.; Jaguaribe,A.M.; Gilmore,D.P.; Da Costa,C.P.. |
| Blood pressure (BP) profiles were monitored in nine free-ranging sloths (Bradypus variegatus) by coupling one common carotid artery to a BP telemetry transmitter. Animals moved freely in an isolated and temperature-controlled room (24ºC) with 12/12-h artificial light-dark cycles and behaviors were observed during resting, eating and moving. Systolic (SBP) and diastolic (DBP) blood pressures were sampled for 1 min every 15 min for 24 h. BP rhythm over 24 h was analyzed by the cosinor method and the mesor, amplitude, acrophase and percent rhythm were calculated. A total of 764 measurements were made in the light cycle and 721 in the dark cycle. Twenty-four-hour values (mean ± SD) were obtained for SBP (121 ± 22 mmHg), DBP (86 ± 17 mmHg), mean BP (MBP, 98 ±... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Sloths; Bradypus; Circadian rhythm; Blood pressure. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000200016 |
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| MOREIRA,DANIELLE O.; MENDES,SÉRGIO L.. |
| ABSTRACT Sloths were a curiosity item for Europeans in the 16th and 17th centuries, and several descriptions of them exist in bestiaries and texts of that time. Here, we assemble the descriptions and drawings of sloths from the travellers and naturalists of those centuries in the Brazilian Atlantic Forest. The sloth was a novelty to the European audience, and it was described in many strange and inaccurate ways: as a monster, a beast, or an odd child. It served as a source of admiration, amusement, and confusion among naturalists and travellers of the 16th and 17th centuries. We also raised the question about the identity of Carolus Clusius' sloth, a drawing published in Exoticorum libri decem (1605). We compared his drawing with earlier depictions and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bradypus; Brazil; Carolus Clusius; Georg Marcgrave; History of Zoology; Naturalists. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501799 |
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