Bacharelado em Ciências Biológicas (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/5
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APP - Artigo Publicado em Periódico
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Resultados da Pesquisa
Item Morfologia das glândulas salivares de Bradypus variegatus (Schinz,1825)(2022-10-19) Silva, Lorena Nascimento da; Amorim, Marleyne José Afonso Accioly Lins; http://lattes.cnpq.br/1237734889563996; http://lattes.cnpq.br/2955989152624454Item Estudo anatômico do cerebelo de Bradypus variegatus, Schinz 1825 (Mammalia: Pilosa)(2022-05-24) Oliveira, Ueliton da Silva; Amorim, Marleyne José Afonso Accioly Lins; http://lattes.cnpq.br/1237734889563996; http://lattes.cnpq.br/9250603868698523The common sloth (Bradypus variegatus, Schinz 1825) is an arboreal quadruped species belonging to the Class Mammalia, Superorder Xenarthra and Family Bradypodidae. In South America, it inhabits from northern Colombia to southwestern Venezuela, southern Ecuador, eastern Peru and Bolivia, in addition to being present in Brazil. In the case of organic systems, bradypodids have certain anatomical peculiarities such as double posterior vena cava, six to nine cervical vertebrae depending on the species; common duct for the urinary and genital tracts in females and internal testes in males. However, there are few studies concerning the central nervous system, especially when comparing them to domestic animals. Therefore, the present work aims to analyze, describe and morphologically characterize the cerebellar structures of the Bradypus variegatus sloth. 10 animals were used for the analyses, obtained after natural death from the Wild Animal Screening Center, and fixed in 20% formaldehyde. Reserved in numbered tanks in 30% saline solution, the animals also received individual identifications. The skullcap and brain were removed to gain access to the cerebellum. The organ was separated from the brain stem by a cross section and preserved in a 20% formaldehyde solution in glass reservoirs. The cerebellar structure of common sloths, in both males and females, was, on average, 1.21 cm long by 1.62 cm wide. From the analysis carried out, it is concluded that the B. variegatus cerebellum has an ovoid morphology, slightly flattened in the cranial and caudal lateral portions, presenting the worm in the central region, right and left hemispheres with lobes and fissures, which corroborate with descriptive studies performed on humans and domestic animals.Item Interações reprodutivas dos indivíduos in situ e ex situ de Bradypus variegatus Schinz (1825), no Parque Estadual de Dois Irmãos, Recife-PE(2021-07-09) Sales, Marília Bazante Velôzo de; Barros, Nathália Fernanda Justino de; Silva, Karine Pinto Persolino da; http://lattes.cnpq.br/2037207221662545; http://lattes.cnpq.br/0990807064246900; http://lattes.cnpq.br/1648235365331969Sloths are included in the Xenarthra superorder. The species Bradypus variegatus was popularly known as the common sloth or brown-throated sloth. Information on reproductive seasonality and aspects related to the reproduction of this species are still scarce. The objective of this research was to determine the reproductive period of the common sloth in the Dois Irmãos State Park Conservation Unit (PEDI) as well as the reproductive interactions performed by individuals in situ and ex situ during this period. In the first phase of this study, a bibliometric research was carried out and, in the second phase, the occurrence books of the Preguiça de Garganta Marrom (PGM) were analyzed, and the records on the behavior of three female specimens of B. variegatus were studied. Studies on reproductive biology are still needed to support conservation actions.Item Reabilitação e monitoramento pós-soltura de Bradypus variegatusno Projeto Preguiça-de-garganta-marrom, Recife, PE(2019) Silva, Viviane Maria Silveira da; Oliveira, Maria Adélia Borstelmann de; Barros, Nathália Fernanda Justino de; http://lattes.cnpq.br/0990807064246900; http://lattes.cnpq.br/6104426668816123; http://lattes.cnpq.br/0405078960321214Considering the alarming decrease in biodiversity in the last decades, conservation research has reached a high level of importance for the Brazilian fauna and the study of behavior has proved to be a useful tool. Monitoring the behavior of the animals, among other advantages, allows us to evaluate if the rehabilitation strategies used were good enough to guarantee the successful release in nature. The objective of the present study was to observe the behavior of a female sloth, Bradypus variegatus, in captivity during the period of her rehabilitation, to evaluate thepossibility of release her and, if positive, to monitor her free living behavior. For the behavioral observation the focal animal method was used. In 10-minute observation sessions, the behavioral sequences were recorded for five minutes (05 '), followed by five-minute intervals (05'), for three hours (03h) in the morning and afternoon shifts over the course of 12 non-consecutive days, totalizing 50 hours. After the release, a further 25 hours of observation were performed through the focal animal method and with the instantaneous recording.In general, in situand ex situbehaviors did not present major discrepancies, except for the "rest" behavior that, in nature, increased proportionally to a decrease in "eating" behavior. The results showed that sloths, even when they are still puppies, can be rehabilitated and succeeded in releasing, adapting fully to a free life.Item Descrição do plexo braquial do bicho-preguiça Bradypus variegatus Schinz, 1825 (Mammalia: Pilosa)(2018) Alcântara, Silvia Fernanda de; Amorim, Marleyne José Afonso Accioly Lins; Albuquerque, Priscilla Virgínio de; http://lattes.cnpq.br/4763179519142393; http://lattes.cnpq.br/1237734889563996; http://lattes.cnpq.br/5159071628325394The species of Bradypus variegatus is known as common sloth. It is an endemic mammal of Neotropical regions, which suffers from devastating human action. These Bradipodids were submitted to the three thoracic and pelvic, consecrated arboreal and descend to the ground only to excrete and change trees. The study had as its origin the brachial plexus of B. variegatus in relation to the origin and distribution of the nerves. For this, 10 adult females were used. A sós were carried out in the Anatomy Pavilion of the Department of Morphology and Physiology of the Animals of the Federal Rural University of Pernambuco, under license nº 034/2015 of the Ethics Committee on the Use of Animals. The corpses were preserved after natural death, fixed at 20%, preserved in 30% solution in tanks and dissected to visualize the nerves destined to innervate the limbs and thoracic muscles. Once done, which is the brachial plexus of the common laziness originates from the fifth cervical segment, and is tracing to the second thoracic segment. It is formed by the long and suprascapular thoracic nerves, of immediate origin of the medial segment 5 and 6, and by the pectoral, subscapular, axillary, radial, musculocutaneous, medial, medial cutaneous nerves of the forearm and ulnar, with the effect of a trunk formed from of cervical spinal nerves (C) 7, C8, C9, and thoracic (T) 1 and T2. Compared with other animals, the wild rays and rays of light relative to the origin of the B. variegatus plexus, however, the constituent nerves and their innervation areas were not discrepancies.Item Descrição anatômica da artéria carótida externa e seus ramos na preguiça-comum, Bradypus variegatus Schinz, 1825 (Mammalia: Pilosa)(2018) Miranda, Maria Eduarda Luiz Coêlho de; Amorim, Marleyne José Afonso Accioly Lins; http://lattes.cnpq.br/1237734889563996; http://lattes.cnpq.br/6485172910664692Bradypus variegatus is a species of the family Bradypodidae and superorder Xenarthra, with a peculiar life habit and does not largely occur in quantity around the world as Brazil. It should be considered as a multidisciplinary biological model, making possible the maintenance of several biological studies. Particularly emphasizing the importance of morphological research, since these animals present great anatomical variation, mainly in the arterial vascularization. Thus, an anatomical description of sloth B. variegatus was performed from the external carotid artery (a.) and its branches. The corpses were acquired through the Wild Screening Center CETAS/IBAMA. Procedures were authorized by Animal Use and Experimentation Ethic Committee CEUA/UFRPE license nº 034/2015. Ten adult animals, all females, were sampled and submitted to dissection, then it was verified that the common carotid a. bifurcates over the external and internal carotid at the level of first tracheal ring. The external carotid extends to the maxilla, where creates branches to the temporal region and eye posterior pole. For all sampled animals, seven principal branches of external carotid were observed, and according to their origin and location were denominated as auricular, lingual, facial, bottom alveolar, temporal, maxillary and ophthalmic arteries. The maxillary and ophthalmic branches correspond to the terminals and others are lateral branches. In 50% of the animals sampled, the presence of arterial anastomoses was verified and 40% of them presented the addition of a branch to the principal. Almost one third (30%) of these demonstrated the presence of a tracheal branch and 10% of a sublingual branch, being these lateral branches. This study corroborates the understanding about the head and neck vascularization of sloth, aiding in the medical clinic of these animals.