Orientador: Cáris Maroni Nunes / Banca: Marcelo Vasconcelos Meireles / Banca: Eliana Reiko Matushima / Resumo: A manutenção de animais silvestres em cativeiro domiciliar como animais de estimação é bastante comum no Brasil e os papagaios tem sido preferidos por serem considerados curiosos, inteligentes e divertidos, além de serem excelentes imitadores e faladores. Entretanto, os papagaios-verdadeiros (Amazona aestiva) podem ser fontes de infecção de algumas zoonoses. Neste trabalho foram estudados 50 papagaios-verdadeiros mantidos em cativeiro domiciliar no município de Araçatuba, São Paulo. As condições sócio-econômicas e os manejos sanitário e nutricional das aves, bem como o contato com os residentes foram avaliados por meio de visitas às casas. Os resultados revelaram manejos sanitário e nutricional inadequados na maioria dos casos, estreito contato com os papagaios e falta de conhecimento sobre enfermidades dos mesmos. Não foi isolada Salmonella sp. nas amostras de fezes, enquanto Escherichia coli estava presente em três animais e estruturas leveduriformes foram encontradas na maioria deles. Cryptosporidium sp. foi encontrado em uma das amostras. Pode-se concluir que o estreito contato dos residentes com as aves e as condições sanitárias inadequadas podem favorecer a ocorrência de zoonoses nas residências avaliadas. A presença de Cryptosporidium sp., caso se trate de uma espécie zoonótica, indica a possibilidade da transmissão de criptosporidiose de papagaios para o homem em condições de cativeiro domiciliar. / Abstract: The maintenance of wild animals in domiciliary captivity as pets has been common in Brazil and parrots are preferred because they are considered curious, intelligents, amusing, excellent talkative and mimics. However, the blue- fronted amazon parrot (Amazona aestiva) can be source of some zoonosis infections. In the present study the sanitary and nutritional management of 50 blue-fronted amazon parrots kept in domiciliary captivity in Araçatuba city, SP, as well as the occurrence of zoonosis agents in stools samples, social-economic conditions and residents-birds contact were evaluated. Results showed inadequate sanitary and nutritional management in the majority of the cases, strait contact with the parrots and lack of knowledge about parrots diseases. Salmonella was not found in stool samples while Escherichia coli was present in three samples and levedures-like structures were found in the majority them. Cryptosporidium was found in one sample. We can conclude that the close contact with the birds and the uncorrect management can favour occurrence of zoonosis in evaluated residences. The presence of Cryptosporidium sp. Indicates transmition possibility of cryptosporidiosis, in case of zoonotic specie, from parrots to humans in domiciliary captivity conditions. / Mestre

Due to their phylogenetic position as an outgroup to humans and the other African apes, empirical data from orangutans are an especially valuable comparative tool with which questions about the evolution of human life history and reproductive characteristics can be addressed. Yet few such data are available. In this dissertation, I use endocrinological and behavioral data from 7 female and 3 male orangutans housed at the Woodland Park Zoo in Washington and the Great Ape Trust in Iowa to characterize the ovarian function and reproductive behaviors of captive female orangutans at different points in the life cycle. Ovarian hormone measurements were achieved through the use of non-invasive urine sampling, and assays reveal both intra- and inter-individual variation in hormone production. Results indicate that (1) adolescent females in captivity do not experience a marked period of subfecund estrogen and progesterone levels in association with reproductive maturation, (2) individual females exhibit both "high quality" and "low quality" cycles, including instances of anovulation, in the absence of fluctuating dietary and environmental conditions, (3) mating behaviors vary between individuals and with cycle phase, but are not strongly influenced by absolute ovarian hormone concentrations, and (4) reproductive senescence does not significantly impact the ovarian function and mating behaviors of aging female orangutans. These results demonstrate that many aspects of human reproductive biology and behavior, such as an extended period of mating receptivity, are evolutionarily conserved. They suggest, however, that the decline in human ovarian function in mid-life may be derived and of possible adaptive significance. The potential significance of differences between captive and wild ape populations, and the character, history, and familial relationships of the particular individuals discussed are considered in the interpretation of all data.

The present study argues that a series of programmatic additions were made to the oracles concerning the nations in Isa 13-23 during the late-exilic period by the same circle of writers who were responsible for Isa 40-55. These additions were made to create continuity between the ancient oracles against the nations from the Isaiah tradition and the future fate of the same nations as the late-exilic redactor(s) foresaw. The additions portray a two-sided vision concerning the nations. One group of passages (14:1-2; 14:32b; 16:1-4a; 18:7) depicts a positive turn for certain nations while the other group of passages (14:26-27; 19:16-17; 23:8-9, 11) continues to pronounce doom against the remaining nations. This double-sided vision is set out first in Isa 14 surrounding the famous taunt against the fallen tyrant. 14:1-2, before the taunt, paints the broad picture of the future return of the exiles and the attachment of the gentiles to the people of Israel. After the taunt and other sayings of YHWH against his enemies, 14:26-27 extends the sphere of the underlying theme of 14:4b-25a, namely YHWH's judgement against boastful and tyrannical power(s), to all nations and the whole earth. The two sides of this vision are then applied accordingly to the rest of the oracles concerning nations in chs 13-23. To the nations that have experienced similar disasters as the people of Israel, words of hope in line with 14:1-2 were given. To the nations that still possessed some prominence and reasons to be proud, words of doom in line with 14:26-27 were decreed. Only later in the post-exilic period, for whatever reason, be it changed international political climate or further spread of the Jewish diaspora, was the inclusive vision of 14:1-2 extended even to the nations that were not so favourably viewed by our late-exilic redactor (19:18-25; 23:15-18).

Divided into three parts, this thesis maps a cultural history of Barbary captivity; concentrating on the early 17th century leading up to the Civil Wars; an aspect of British-Muslim contact within which the West Country is overrepresented in the archives. However, this wealth of material contrasts sharply with the paucity of popular and public-facing representations. Situating these accounts within wider contexts, this thesis investigates this contrast, exploring the social, cultural, emotional and economic impact of Barbary captivity upon understandings of place and identity. The first part examines representations of being taken captive, the terror and distress of West Country inhabitants, and the responses and concerns of the authorities. The on-going failure to protect the region and its seafarers exacerbated this distress, producing marginalised geographies of fear and anxiety. The second part explores the themes of memory and identity, arguing that how captives were remembered and forgotten had implications for localised and national identities. For those held in Barbary, families and communities petitioned and undertook ransom collections to redeem the captives, providing reminders to the authorities and appealing for wider remembrance as part of the processes of Christian compassion. Nevertheless, the majority of captives were ‘forgotten’, neither ransomed nor leaving their individual mark within the historical record. This part concludes with a discussion of the role of memory in managing and articulating the ‘trauma’ of captivity. The final part examines mobile and fluid identities, concentrating on returning captives and Islamic converts. Early modern theories of identity situated the humoral body of the captive as susceptible to ‘turning Turk’, contributing to wider negotiations of national, ethnic and religious identities. Cultural anxieties were preoccupied with the ill-defined borders of the geographically displaced material body, generating mutable, hidden and shameful identities. In conclusion, sites of cultural trauma are produced, indicated by the subsequent silence regarding this aspect of localised history.

Submitted by HELEN COLBACHINI (hcolbachini@gmail.com) on 2018-04-18T00:26:17Z No. of bitstreams: 1 Helen Colbachini_Dissertação Zoologia.pdf: 2645399 bytes, checksum: 2048a35ec7b7829866e0808d2a32a21a (MD5) / Approved for entry into archive by Adriana Aparecida Puerta null (dripuerta@rc.unesp.br) on 2018-04-18T14:22:04Z (GMT) No. of bitstreams: 1 colbachini_h_me_rcla.pdf: 2470317 bytes, checksum: c173d0ab9c5bac9898e58bb4a42e3e4a (MD5) / Made available in DSpace on 2018-04-18T14:22:04Z (GMT). No. of bitstreams: 1 colbachini_h_me_rcla.pdf: 2470317 bytes, checksum: c173d0ab9c5bac9898e58bb4a42e3e4a (MD5) Previous issue date: 2018-02-19 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O cação-lixa, Ginglymostoma cirratum, é um dos tubarões mais exibidos em Aquários no mundo, porém a taxa de insucesso reprodutivo desta espécie ainda é alta. Considerando a provável mediação olfativa para a sua reprodução e o potencial de enriquecimentos ambientais afetarem positivamente a reprodução de animais sob cuidados humanos, o presente trabalho objetivou avaliar se a utilização de enriquecimento olfativo geraria efeitos na exibição de comportamentos reprodutivos de cação-lixa, bem como se esse efeito seria diferencial de acordo com o sexo. Este trabalho também propôs avaliar a proximidade física como um indicativo de comportamento proceptivo de fêmeas. O estudo foi dividido em três fases (controle – sem enriquecimento; enriquecimento a curto prazo – recém aplicado; enriquecimento a longo prazo – após incorporado na rotina de manejo) e foi realizado em duas instituições com manejos distintos. O enriquecimento utilizado foi manjericão comercial (Ocimum basilicum), inicialmente apresentado na forma de bloco de gelo e, para o estudo a longo prazo, apresentado na forma de extrato. As observações comportamentais ocorreram através da amostragem focal com registro instantâneo, totalizando 120 horas de observação por animal, divididas em dois momentos (ativo e inativo). Os resultados indicam maior atividade relacionada ao período noturno e às sessões de alimentação; maior frequência de ocorrência de comportamentos reprodutivos no período inativo, no sexo masculino e nas fases com enriquecimento ambiental; maior riqueza comportamental em machos e na fase de enriquecimento a longo prazo. A análise de proximidade mostrou-se eficiente como indicativa de comportamento sócio-sexual, assim como o comportamento “movimento corporal”. É importante atentar que os efeitos são diferenciados para os sexos, sendo essencial o acompanhamento próximo e a criação de cronogramas para evitar uma super-estimulação ou uma habituação ao enriquecimento. Apesar disso, o fato da maior frequência de comportamentos reprodutivos ter ocorrido no período inativo facilita este acompanhamento, visto que se refere ao período de funcionamento de instituições zoológico (dia). Por fim, com a definição dos comportamentos proceptivos faz-se possível determinar quais fêmeas estão receptivas e assim delinear programas reprodutivos mais eficientes. Esses resultados destacam a importância de possuir um manejo que estimule constantemente os sentidos dos elasmobrânquios, especialmente em instituições que desejem realizar programas de reprodução. / Nurse shark, Ginglymostoma cirratum, is one of the most exhibited sharks in Aquariums in the world, however, the reproductive failure rate of this species continues high. Since there probably is an olfactory mediation for its reproduction and environmental enrichments have a potential positive effect on the reproduction of captive animals, the present study aimed to evaluate whether the use of olfactory enrichment would generate effects in the exhibition of reproductive behaviors of nurse sharks, as well as if this effect would be differential according to sex. This study also proposed to evaluate physical proximity as an indicative of proceptive female behavior. The study was divided in three phases (control – without enrichment, shortterm enrichment – recently applied, long-term enrichment – after being incorporated into the management routine) and was performed in two institutions with distinct husbandry. The enrichment used was commercial basil (Ocimum basilicum), which was initially prepared as an ice block and, for the long-term phase, presented as an extract. The behavioral observations were performed through focal sampling with instantaneous recording, totaling 120 hours of observation per animal, divided into two moments (active and inactive). Results show greater activity related to nocturnal period and feeding sessions; greater frequency of occurrence of reproductive behaviors in the inactive period, with males and during the long-term enriched phase. The proximity analysis was efficient as indicative of socio-sexual behavior, as well as the “body movement” behavior. It is important to note that the enrichment effects are differentiated for the sexes and therefore, close monitoring and scheduling are essential to avoid over-stimulation or habituation to the enrichment. Nevertheless, the fact that the greater frequency of reproductive behavior occurred during the inactive period facilitates this monitoring, since it refers to the operating hours of zoological institutions (daytime). Finally, with the definition of proceptive behavior, it is possible to determine which females are receptive and thus, to delineate more efficient breeding programs. These results highlight the importance of having a management that constantly stimulates the senses of elasmobranchs, especially in institutions that aims to carry out breeding programs.

Made available in DSpace on 2016-12-23T14:38:03Z (GMT). No. of bitstreams: 1 Dissertacao de Bianca Campos Queiroz - Parte 1.pdf: 143529 bytes, checksum: 6e96b2578facd7a8bd8292fd51d24244 (MD5) Previous issue date: 2009-08-28 / In the present study the behaviors of a chauá group (Amazon rhodocorytha), a threatened species of parrot, was described and quantified. The group was constituted by 21 individuals from different origin, with different ages and from both sexes, maintained at an enclosure in the Center of Reintroduction of Wild Animals. The influence of the position in the enclosure and of the period of the day on the pattern of activity of the group were also investigated. The observations happened between July and September of 2008. The scan method was used to quantify the categories locomotion, exploration, maintenance, rest, vocalization in movement, vocalization in rest, agonístics and affiliatives social interactions. Space use was also registered during scans. Among the intervals of the scans social behaviors were registered using the sampling of all of the occurrences. "Rest" was the category more frequently observed and the social interactions were the least frequently observed. However, social affiliative interactions occurred significantly more than agonístic interactions. The animals showed preference for the superior part of the enclosure but activity occurred more frequently in the inferior than in the superior part and in the front than in the bottom part of the enclosure. There was no effect of the period of the day on the activity of the animals. Our results indicate that: 1) the social behavior of the animals may be affected by the captivity presenting a decrease in the frequency of the occurrence of interactions; 2) the social interactions in this species are primarily affiliatives with little occurrence of aggressive interactions; 3) the activity of the animals depends on characteristics of the environment, in more exposed environments the animals tend to be more active; 4) the individuals of this species present a tropism for higher areas and they avoid to rest in the ground. The results are discussed in relation to the available knowledge about the behavior of other parrots species and to the maintenance in captivity / No presente estudo descreveu-se e quantificou-se os comportamentos de um grupo de chauás (Amazona rhodocorytha), psitacídeos ameaçados de extinção, constituído por 21 indivíduos de diferentes procedências, de diferentes idades e de ambos os sexos, alojados em um recinto no Centro de Reintrodução de Animais Silvestres. Investigou-se também a influência da posição no recinto e do período do dia sobre o padrão de atividade do grupo. As observações ocorreram entre julho e setembro de 2008. Utilizou-se o método de varredura para quantificar as categorias locomoção, exploração, manutenção, repouso, vocalização em movimento, vocalização em repouso, interações sociais agonísticas e afiliativas. Registrou-se também, durante as varreduras, a utilização do espaço pelas aves. Entre os intervalos da varredura fez-se observação de todas as ocorrências para registrar os comportamentos sociais. A categoria repouso foi a mais freqüentemente observada e as interações sociais foram as menos freqüentemente observadas. No entanto, as interações sociais afiliativas ocorreram significativamente mais que as interações agonísticas. Os animais mostraram preferência pela parte superior do recinto e a atividade ocorreu mais freqüentemente na parte inferior que na superior e na parte da frente que nos fundos do recinto. Não houve efeito do período do dia sobre a atividade dos animais. Nossos resultados indicam que: 1) pode haver alteração no comportamento social de animais cativos com diminuição da ocorrência de interações; 2) as interações sociais nesta espécie são primariamente afiliativas com pouca ocorrência de interações agressivas; 3) a atividade dos animais depende de características do ambiente, em ambientes mais abertos os animais tendem a ficar mais ativos; 4) os indivíduos desta espécie apresentam um tropismo por regiões mais altas e evitam repousar no chão. Os resultados são discutidos em função do conhecimento disponível sobre o comportamento de outras espécies de psitacídeos e à manutenção em cativeiro

O gênero Mycobacterium compreende inúmeras espécies estudadas por sua capacidade de causar doenças. Surtos de tuberculose e micobacteriose em zoológicos, aquários, centros de pesquisa e criadouros evidenciaram a importância desses organismos em relação à saúde de animais silvestres mantidos em cativeiro. Duzentas e onze amostras, de 101 animais entre mamíferos, aves, répteis, anfíbios e peixes, foram submetidas à cultura. Foram isolados M. tuberculosis, M. bovis e 13 espécies de MNT associadas à doença. A natureza crônica dessas doenças, seu diagnóstico ante mortem limitado, juntamente com as características de interação social de cada espécie e o confinamento, favorecem a transmissão das micobactérias pelo contato com humanos ou outros animais infectados. Apesar de a presença de M. tuberculosis e M. bovis em instituições brasileiras já ter sido constatada, o presente estudo descreveu infecções em espécies animais utilizadas para consumo humano, e em espécies conhecidas pela suscetibilidade, mas que ainda não foram documentadas no Brasil. Doença causada por MNT foi relatada, mas sua importância deve ser considerada de acordo com a espécie animal acometida / Mycobacterium genus comprises several species, which have been studied for their capacity to cause diseases. Outbreaks of tuberculosis and mycobacteriosis in zoos, aquariums, research and breeding facilities have shown the importance of these organisms to health of wildlife animal maintained in captivity. Two hundred and eleven samples, from 101 animals among mammal, birds, reptiles, amphibians and fishes, were cultured. Mycobacterium tuberculosis, M. bovis and 13 species of non-tuberculous mycobacteria associated to diseases were isolated. The chronical nature of tuberculosis and mycobacteriosis, their limited ante mortem diagnosis, along with social behavior of each species and confinement, favor mycobacterial transmission through contact with infected humans and other animals. Despite the presence of M. tuberculosis and M. bovis has already been observed in Brazilian institutions, the present study described infections in animal species destined to human consumption, and species known for their susceptiblility, yet not documented in Brazil. Disease caused by non-tuberculous mycobacteria was reported, though its importance must be considered according to the animal species affected

A infecção por Cryptosporidium serpentis é uma das enfermidades mais importantes em répteis e se caracteriza por infecção crônica, clínica ou subclínica, e presença de gastrite hipertrófica severa, regurgitação, perda de peso progressiva, mortalidade eventual e eliminação contínua e intermitente de oocistos em fezes. O objetivo deste estudo foi padronizar um teste imunoenzimático (ELISA) indireto para detecção de anticorpos contra C. serpentis, e acompanhar a evolução clínica, parasitológica e da resposta imune humoral em serpentes naturalmente infectadas com C. serpentis. Foram utilizadas 21 serpentes naturalmente infectadas com C. serpentis e alojadas no Instituto Butantan, São Paulo, Brasil. As análises clínica e parasitológica foram realizadas em 21 serpentes por meio do registro diário dos sinais clínicos apresentados e pesquisa mensal da eliminação fecal de oocistos, em lâminas coradas pela técnica de Kinyoun. A avaliação sorológica foi realizada mensalmente utilizando o ELISA indireto para pesquisa de anticorpos anti-C. serpentis, pelo período de 12 meses em 8 animais, 8 meses em 3 animais e 6 meses em 1 animal. O ELISA indireto foi padronizado em bloco com utilização de antígeno produzido a partir de oocistos de C. serpentis, IgY de galinha anti-gamaglobulinas de serpentes e conjugado contendo IgG de coelho anti-IgY de galinha ligada à peroxidase. Os sintomas clínicos observados foram regurgitação, inapetência alimentar e perda de peso progressiva. A análise parasitológica revelou eliminação de quantidade variável de oocistos, de forma intermitente, em todas as serpentes, com positividade de 92% (116/126). O ELISA indireto apresentou positividade em 42,9% (54/126) das amostras. Foi observada resposta imune humoral na maioria dos animais, no entanto, com presença título flutuante de anticorpos e alternância de resultados positivos e negativos, em um mesmo animal. / Infection by Cryptosporidium serpentis is one of the most important diseases in reptiles, and is characterized by chronic infection, clinical or subclinical, and the presence of severe hypertrophic gastritis, food regurgitation, progressive weight loss, mortality, and intermittent and continuous shedding of oocysts in feces. The objective of this study was to standardize an indirect enzyme immunoassay (ELISA) to detect antibodies against C. serpentis, and evaluate the clinical, parasitological and humoral immune response in snakes naturally infected with C. serpentis. Twenty one snakes naturally infected with C. serpentis and housed at the Instituto Butantan, São Paulo, Brazil, were used for accomplish clinical and parasitological analyzes of C. serpentis infection, through the daily record of clinical signs and monthly survey of fecal shedding of oocysts using Kinyoun staining technique. The serological evaluation was performed monthly using the indirect ELISA for the detection of anti-C. serpentis antibodies, for a period of 12 months in eight animals, eight months in three animals, and six months in one animal. The indirect ELISA was standardized on the basis of block titration using antigen produced from oocysts of C. serpentis, chicken IgY anti-snake gamaglobulins and a conjugate containing rabbit IgG anti-chicken IgY linked to peroxidase. Clinical symptoms consisted in food regurgitation, inappetence, and progressive weight loss. The parasitological analysis revealed intermittent fecal shedding of variable number of oocysts in all snakes, with positivity in 92% (116/126) of the samples. The indirect ELISA was positive in 42.9% (54/126) of the samples. Humoral immune response was observed in most animals, however, fluctuating antibodies levels with rotation of positive and negative results were observed in some snakes.

Ações antrópicas, como a construção de reservatórios, alteraram a migração de peixes que afeta a função normal do eixo hipotalamo-hipófise-gônadas. Para atenuar o impacto ambiental sobre a biota, existem programas de repovoamento com objetivo de reproduzir as espécies de peixes atingidas pelas barragens. Na piscicultura de Ponte Nova, na Bacia do Alto Tietê, o peixe migratório Astyanax fasciatus é rotineiramente produzido para o repovoamento com protocolos de reprodução artificial convencionais, mas o seu sucesso varia entre as fêmeas. Um estudo de citogenética detectou que o número de cromossomos foi diferente entre os reprodutores, uma característica comum em A. fasciatus. O objetivo do presente estudo foi estudar a fisiologia reprodutiva de Astyanax fasciatus com diferentes números de cromossomos, em ambiente natural (AN) e em cativeiro (Cat) e as possíveis alterações que possam explicar diferentes resultados de resposta à reprodução induzida em cativeiro. Fêmeas adultas de cada grupo experimental (G1-46 cromossomos; com baixa resposta à reprodução induzida; e G2 - 48 cromossomos; com boa resposta à reprodução induzida) foram coletadas em Cat e em AN ao longo de um ano. Amostras de sangue foram retiradas para análise plasmática de estradiol (E2), e os ovários para o cálculo da fecundidade relativa (FR), diâmetro oocitários, Índice Gonadossomático (IGS) e análises histológicas para identificação do estágio de maturação. As fêmeas do G1 nos dois ambientes iniciaram a fase vitelogênica do ciclo reprodutivo no inverno com o aumento da concentração de E2 plasmático. Nas fêmeas de AN, neste mesmo grupo, a maior porcentagem de oócitos vitelogênicos foi mantida nos ovários desde a primavera até o verão, período no qual a concentração de E2 continuou elevada no plasma. Por outro lado, no Cat, as concentrações de E2 não se mantiveram elevadas nas demais estações do ano, limitando-se apenas ao pico do inverno. Mesmo assim, as fêmeas confinadas mantiveram a FR significativamente mais elevada quando comparadas àquelas de AN, assim como maiores porcentagens de oócitos vitelogênicos, evidenciando a ausência de desova e lentidão no processo de reabsorção do vitelo. Já as fêmeas do G2, em AN iniciaram a fase vitelogênica do seu ciclo reprodutivo no outono, com o aumento progressivo dos níveis de E2 que atingiram seu pico na primavera, com a desova ocorrendo no verão. Por outro lado, a permanência no Cat, de alguma forma, alterou a sensibilidade às dicas ambientais do ciclo sazonal, e os níveis de E2 e a FR se mantiveram altos praticamente o ano todo. Estes dados sugerem que A. fasciatus com números diferentes de cromossomos têm padrões reprodutivos diferentes tanto em Cat como em AN e que em cativeiro fêmeas do G1 terão maior sucesso na indução quando manipuladas logo após o inverno, já fêmeas do G2 em Cat parecem ter sucesso na indução praticamente o ano todo / Anthropic actions, such as the construction of reservoirs, alter fish migration affecting the normal function of the brain-pituitary-gonads axis. To mitigate the environmental impact on the biota, fish restocking programs aim to reproduce fish species affected by dams. In the Ponte Nova Fish Farm, in the Upper Tietê River Basin, the migratory fish Astyanax fasciatus is routinely produced for restocking with a conventional artificial breeding protocol, but its success varies among the females. A cytogenetic study detected that the number of chromosomes was different among the broodstocks, a common feature in A. fasciatus. The purpose of this study was to study the reproductive physiology of Astyanax fasciatus with different numbers of chromosomes in a natural environment (AN) and captivity (Cat) and the possible changes that might explain different results in the success of induced reproduction in captivity. Adult females of each experimental group (G1-46 chromosomes; with low response to induced reproduction, and G2 - 48 chromosomes, with good response to induced reproduction) were collected in Cat and AN over one year. Blood samples were taken to analyze plasma estradiol (E2), and samples of ovaries to calculate the relative fecundity (FR), oocyte diameter, gonadosomatic index (GSI) and histological analyzes to identify the maturation stage. Females of G1, in both environments, started the vitellogenic phase of the reproductive cycle in the winter, with an increase in E2 levels. In the wild animals, the highest percentage of vitellogenic oocytes was maintained in the ovaries from spring to summer, a period in which E2 levels remained high. On the other hand, in captivity, a higher level of E2 was observed only in winter. Even so, the females in captivity maintained the fecundity significantly higher when compared with the wild ones, and also a higher percentage of vitellogenic oocytes, evidencing the absence of spawning and a delay in the yolk absorption. In G2, the vitellogenic stage of oocytes in wild females started in the fall, with a progressive increase in E2 levels, reaching its peak in spring, with the spawning in summer. On the other hand, remaining in the captivity, somehow altered the availability to the environmental tips of the seasonal cycle, and E2 levels as well as the FR virtually remained high throughout the year. These data suggest that A. fasciatus with different numbers of chromosomes have different reproductive patterns, both in a Cat and AN. G1 females could succeed in induced reproduction when handled immediately after winter, while G2 females seem to succeed the artificial reproductive induction throughout the year

Submitted by Amanda Silva (amanda.osilva2@ufpe.br) on 2015-03-05T13:59:07Z No. of bitstreams: 2 TESE Fábia de Oliveira Luna.pdf: 6070926 bytes, checksum: 5c0233b17f6af6c3a2f420f1d6eb3248 (MD5) license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) / Made available in DSpace on 2015-03-05T13:59:07Z (GMT). No. of bitstreams: 2 TESE Fábia de Oliveira Luna.pdf: 6070926 bytes, checksum: 5c0233b17f6af6c3a2f420f1d6eb3248 (MD5) license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Previous issue date: 2013 / The West Indian manatee (Trichechus manatus) and the Amazonian manatee (Trichechus inunguis) belong to the mammalian Order Sirenia, classified respectively as critically endangered and as vulnerable in Brazil. Both species have been hunted commercially since the sixteenth century, resulting in a drastic reduction or elimination of manatees in some places. This hunting pressure may have caused isolation of the populations resulting in geographic genetic isolation, with a reduction of their genetic diversity. The objective of this study is to understand the genetic diversity and population structure of the West Indian manatee (T. manatus) in Brazil; verify the existence of hybridization between the manatees T. manatus and T. inungus; define the degree of relatedness of individuals in captivity; and provide strategies for the conservation of the species. In northeastern Brazil, a large number of dependent calves strand on beaches. Many of these calves have been rescued alive and rehabilitated for future release. Previously, the identification of release sites did not take into account the genetic issues. Through this study, it has been possible to identify suitable release sites based on phylogenetic traits of the manatees. The genetic structure of the population was studied using nuclear DNA in the program STRUCTURE, and comparing FST and RST values. On the Northeast coast one population was identified, which is subdivided in two subpopulations. A different genetic population was found in the Northwest of the Amazon River estuary (extreme north of Brazil, Guyana and Venezuelan). Manatees from the Estuary of the Amazon River grouped with Amazonian manatees from the Santarém region to form a third population. A total of four manatee Management Units were identified along the Brazilian coast, which should be treated separately for management and conservation needs. Using a combination of molecular markers (mtDNA and nDNA) and cytogenetic analyses the existence of hybridization between T. manatus and T inunguis was confirmed, although this does not appear to be a frequent occurrence. Some of the dependent calves rescued, and other individuals transferred from irregular captive conditions to the CMA/ICMBio, were kept together and breeding occurred. Maintaining related manatees together can lead to inbreeding. It was possible 29 to establish the degree of relatedness between individuals kept at CMA/ICMBio and verify the extistence of inbreeding. To avoid inbreeding, hybridization, and overpopulation in captivity, it is necessary that males and females be separated immediately, thereby preventing reproduction ex-situ. The present study allows us to establish actions for the conservation of the West Indian manatee. Actions that should be prioritized include: protection and restoration of habitat with the creation and implementation of specific protected areas; creation and maintenance of travel corridors that allow gene flow; reduction and elimination of anthropogenic pressures on the species; stopping pointless reproduction in captivity; designing further studies in the north of Brazil to better understand the hybridization and implement the action plan.