439 research outputs found
Two cases of polydactyly in wild brown howler monkeys (Alouatta guariba clamitans)
No full textWe report the first two cases of polydactyly in an atelid species: (a) a wild ca. 16 week-old infant female presenting seven digits in both feet and other bone malformations, and (b) a wild newborn male presenting six digits in both feet with the extra digit fused to the hallux.Fil: Silva, Moira Ansolch da. Mantenedouro de Fauna Rincao do Araticum; BrasilFil: Steinberg, Eliana Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaFil: Paskulin, Giorgio A.. GENEX Instituto de Exames Geneticos ; BrasilFil: Teixeira, Fabio dos Santos. Universidade Federal do Rio Grande do Sul; BrasilFil: Jesus, Anamelia de Souza. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaFil: Mudry, Marta Dolores. Pontificia Universidade Católica do Rio Grande do Sul; BrasilFil: Bicca Marques, Julio Cesar. Pontificia Universidade Católica do Rio Grande do Sul; Brasi
Cognitive Aspects of Within -Patch Foraging Decisions in Wild Diurnal and Nocturnal New World Monkeys
No full textIn this dissertation, I examine the ability of free-ranging diurnal and nocturnal New World monkeys (black-chinned emperor tamarins, Saguinus imperator imperator, Weddell's saddleback tamarins, Saguinus fuscicollis weddelli; red titi monkeys, Callicebus cupreus cupreus; and Southern red-necked night monkeys, Aotus nigriceps ) to use visual cues, olfactory cues, spatial information, associative cues, landmark cues, and quantity information in making within-patch foraging decisions. This was accomplished through a controlled experimental field study conducted at the Zoobotanical Park of the Federal University of Acre (Rio Branco, Acre, Brazil) from August 1997 to July 1998. Analyses at the group level indicated that all four species were capable of learning the spatial distribution of food items within a patch and used this knowledge to return to previously exploited feeding sites. diurnal monkeys used visual cues to a greater extent than did night monkeys. Night monkeys, however, failed to show evidence of the use of olfactory cues more effectively than did emperor tamarins. In addition, when faced with conflicting spatial and perceptual information, all four species relied on visual or olfactory cues in selecting feeding sites. A comparison of the performances of emperor and saddleback tamarins when in and out of mixed-species association indicated that the dominant emperor tamarins may use information from the foraging behavior of saddlebacks to improve their searching efficiency. In contrast, saddlebacks performed better when out of association. Moreover, when forming mixed-species troops, both emperor and saddleback tamarins experienced costs of decreased time spent feeding and food intake. Analyses at the individual level indicated that among emperor and saddleback tamarins, group members may be classified as producers, scroungers, or opportunists, depending on their investment in searching for food. The adoption of these strategies is likely to be determined by factors such as social status and age. Differences in cognitive skills are unlikely to have an important role in the individual choice of foraging strategies. In addition, saddlebacks were more tolerant than emperors of sharing food rewards with other group members. Only adult male emperor tamarins, however, deferred to immatures and breeding adult females at feeding sites.Made available in DSpace on 2015-09-25T22:41:09Z (GMT). No. of bitstreams: 2
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Previous issue date: 2000Embargo set by: Seth Robbins for item 86607
Lift date: Forever
Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDsRestricted to the U of I community idenfinitely during batch ingest of legacy ETDsU of I Only387 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2000
Cognitive Aspects of Within -Patch Foraging Decisions in Wild Diurnal and Nocturnal New World Monkeys
No full text387 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2000.In this dissertation, I examine the ability of free-ranging diurnal and nocturnal New World monkeys (black-chinned emperor tamarins, Saguinus imperator imperator, Weddell's saddleback tamarins, Saguinus fuscicollis weddelli; red titi monkeys, Callicebus cupreus cupreus; and Southern red-necked night monkeys, Aotus nigriceps ) to use visual cues, olfactory cues, spatial information, associative cues, landmark cues, and quantity information in making within-patch foraging decisions. This was accomplished through a controlled experimental field study conducted at the Zoobotanical Park of the Federal University of Acre (Rio Branco, Acre, Brazil) from August 1997 to July 1998. Analyses at the group level indicated that all four species were capable of learning the spatial distribution of food items within a patch and used this knowledge to return to previously exploited feeding sites. diurnal monkeys used visual cues to a greater extent than did night monkeys. Night monkeys, however, failed to show evidence of the use of olfactory cues more effectively than did emperor tamarins. In addition, when faced with conflicting spatial and perceptual information, all four species relied on visual or olfactory cues in selecting feeding sites. A comparison of the performances of emperor and saddleback tamarins when in and out of mixed-species association indicated that the dominant emperor tamarins may use information from the foraging behavior of saddlebacks to improve their searching efficiency. In contrast, saddlebacks performed better when out of association. Moreover, when forming mixed-species troops, both emperor and saddleback tamarins experienced costs of decreased time spent feeding and food intake. Analyses at the individual level indicated that among emperor and saddleback tamarins, group members may be classified as producers, scroungers, or opportunists, depending on their investment in searching for food. The adoption of these strategies is likely to be determined by factors such as social status and age. Differences in cognitive skills are unlikely to have an important role in the individual choice of foraging strategies. In addition, saddlebacks were more tolerant than emperors of sharing food rewards with other group members. Only adult male emperor tamarins, however, deferred to immatures and breeding adult females at feeding sites.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD
Yellow fever threatens Atlantic Forest primates
No full textEmerging infectious diseases were cited as a cause of population decline of wild nonhuman primates (NHPs) by A. Estrada and collaborators in their review “Impending extinction crisis of the world’s primates” (Science Advances, 18 January, e1600946). Concurrent with the publication of this review, an epidemic of jungle yellow fever (YF) in the Atlantic Forest region of southeastern Brazil is affecting humans and NHPs alike, challenging health and wildlife conservation authorities and professionals. From December 2016 to 18 May 2017, YF has killed 264 people (42 additional deaths are under investigation) and caused, at least, 5,000 NHP deaths (1). Our field estimates sum many thousands of NHP deaths. Humans have access to an effective vaccine and about 85% of infected unvaccinated people are asymptomatic or develop a mild form of YF (2). Despite this resistance, there are 758 confirmed human cases and a further 622 cases under investigation, about 63% of them in regions of recommended vaccination prior to the current epidemic.Fil: Bicca Marques, Julio Cesar. Pontificia Universidade Catolica Do Rio Grande Do Sul. Facultad de Biociencias; BrasilFil: Calegaro Marques, Claudia. Pontificia Universidade Catolica Do Rio Grande Do Sul. Facultad de Biociencias; BrasilFil: Rylands, Anthony. Conservation International; Estados UnidosFil: Strier, Karen B.. University of Wisconsin; Estados UnidosFil: Mittermeier, Russel. Conservation International; Estados UnidosFil: De Almeida, Marco Antonio. Secretaria Estadual da Saúde do Rio Grande do Sul; BrasilFil: De Castro, Paulo Henrique. Centro Nacional de Primatas; BrasilFil: Chaves, Oscar M.. Pontificia Universidade Catolica Do Rio Grande Do Sul. Facultad de Biociencias; BrasilFil: Ferraz, Luis P.. Associação Mico leão dourado; BrasilFil: Fortes, Vanessa B.. Universidade Federal de Santa Maria; BrasilFil: Hirano, Zelinda M. B.. Fundação Universidade Regional de Blumenau; BrasilFil: Jerusalinsky, Leandro. Centro Nacional de Pesquisa E Conservação de Primatas B; BrasilFil: Kowalewski, Miguel Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Estación Biológica de Usos Múltiples (Sede Corrientes); ArgentinaFil: Martins, Wadney P.. Universidade Estadual de Montes Claros; BrasilFil: De Melo, Fabiano. Universidade Federal de Goiás; BrasilFil: Mendes, Sergio L.. Universidade Federal do Espírito Santo; BrasilFil: Neves, Leonardo G.. Instituto Uiraçu; BrasilFil: Passos,Fernando C.. Universidade Federal do Paraná; BrasilFil: Port Carvalho, Marcio. Instituto Florestal, Sao Paulo; BrasilFil: Ribeiro, Soraya. Secretaria Municipal de Meio Ambiente e Sustentabilidad; BrasilFil: Romano, Alessandro. Universidade do Brasília; BrasilFil: Ruiz Miranda, Carlos. Universidade Estadual Do Norte Fluminense Darcy Ribeiro; BrasilFil: Dos Santos, Elisandro O.. Zoológico Municipal de canoas; BrasilFil: De Souza Jr, Julio Cesar. Centro de Pesquisas Biológicas de Indaial; BrasilFil: Teixeira, Danilo S.. Universidade do Brasília; Brasi
Hybridization in howler monkeys: current understanding and future directions
No full textHybridization, or the process by which individuals from genetically distinct populations (e.g., species, subspecies) mate and produce at least some offspring, is of great relevance to understanding the basis of reproductive isolation and, in some cases, the origins of biodiversity. Natural hybridization among primates has been well known for a few taxa, but just recently the genetic confirmation of hybridization on a number of taxa has produced new awareness of the prevalence of this phenomenon in primates and its importance in primate evolution. The study of hybridization of Alouatta pigra and A. palliata in Mexico was among the first to genetically confirm the current occurrence of hybridization in primates. Following this study, other reports of hybridization across primate taxa have shown that this phenomenon is more widespread in the Primate order than was initially expected. Within the genus Alouatta, there have been reports on the presence of hybridization between A. caraya and A. guariba in a number of contact zones in Brazil and Argentina, and various studies are currently ongoing in some of these sites to understand the extent and patterns of hybridization between these species. In this chapter, we evaluate the extent of hybridization in the genus Alouatta, revise the current knowledge of the genetic and morphological aspects of these hybrid systems, and identify future directions in the study of hybridization within this genus, to understand the possible implications of the hybridization process in the evolutionary history of howler monkeys.Fil: Cortés Ortiz, Liliana. University of Michigan; Estados UnidosFil: Agostini, Ilaria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; Argentina. Centro de Investigaciones del Bosque Atlántico; ArgentinaFil: Aguiar, Lucas M.. Universidade Federal da Integração Latinoamericana; BrasilFil: Kelaita, Mary. University of Texas; Estados UnidosFil: Silva, Felipe Ennes. Instituto de Desenvolvimento Sustentável Mamirauá; BrasilFil: Bicca Marques, Julio Cesar. Pontificia Universidade Catolica Do Rio Grande Do Sul. Facultad de Biociencias; Brasi
Resenha: MAFFESOLI, Michel. A parte do diabo. Trad. Clóvis Marques. Rio de Janeiro: Record, 2004.
No full textResenha: MAFFESOLI, Michel. A parte do diabo. Trad. Clóvis Marques. Rio de Janeiro: Record, 2004
Entrevista com Ana Claudia Marques
No full textAna Claudia Marques é graduada em Antropologia pela Universidade Nova de Lisboa em 1992, com mestrado em Antropologia Social pela Universidade Federal de Santa Catarina (UFSC), concluído em 1995, e doutorado na mesma área pelo Museu Nacional (2001). Desde 2003 é professora doutora no Departamento de Antropologia da Faculdade de Filosofia, Letras e Ciências Humanas da Universidade de São Paulo (FFLCH-USP) e é titular da Comissão de Ensino para a graduação, nesse Departamento, para o curso de Ciências Sociais
Vozes do exílio e suas manifestações nas narrativas de Júlio Cortázar e Marta Traba
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas. Programa de Pós-Graduação em Ciências Humanas.Emblema da condição humana, o exílio é um problema de múltiplas nuanças. Fato real ou assunto literário, a experiência de exílio encontra-se presente na literatura de todos os tempos. A presente tese opera em três tempos relacionados entre si, em torno à experiência de exílio. Na primeira parte, o estudo do conceito de exílio e suas tensões e antinomias na modernidade é analisado do ponto de vista teórico a partir das reflexões de importantes autores como: Hannah Arendt, Theodor W. Adorno, Edward Said, Giorgio Agamben, Stuart Hall, Claudio Magris, entre outros. Na segunda e terceira parte, a manifestação dessas tensões é indagada do ponto de vista literário e político, nas vivências e narrativas de exílio de Julio Cortázar e Marta Traba, dois importantes intelectuais diaspóricos latino-americanos que vivenciaram o exílio como condição criativa e espaço de luta e confronto. While emblem of the human condition, the exile is a problem of multiple nuances. Real fact or literary subject, the exile experience is present in the literature of all times. The present thesis operates in three times related among themselves, around the exile experience. In the first part, the study of the exile concept and its tensions and antinomies in the modernity is analyzed at the theoretical point of view starting from the reflections of important authors as: Hannah Arendt, Theodor W. Adorno, Edward Said, Giorgio Agamben, Stuart Hall, Claudio Magris, among others. In the second and third part, the manifestation of those tensions is investigated from the literary and political point of view, in the existences and narratives of exile of Julio Cortázar and Marta Traba, two important Latin-American intellectuals that lived the exile as a creative condition and space of fight and confrontation. Emblema de la condición humana, el exilio es un problema de múltiples matices. Hecho real o tema literario, la experiencia de exilio se encuentra presente en la literatura de todos los tiempos. La presente tesis opera en tres tiempos relacionados entre si, alrededor de la experiencia de exilio. En la primera parte, el estudio del concepto de exilio y sus tensiones y antinomias en la modernidad es analizado del punto de vista teórico a partir de las reflexiones de importantes autores como: Hannah Arendt, Theodor W. Adorno, Edward Said, Giorgio Agamben, Stuart Hall, Claudio Magris, entre otros. En la segunda y tercera parte, la manifestación de esas tensiones es investigada del punto de vista literario y político, en las vivencias y narrativas de Julio Cortázar y Marta Traba, dos importantes intelectuales "diaspóricos" latinoamericanos que vivieron el exilio como condición creativa y espacio de lucha y confrontación
Do Patch Size and Interpatch Distance Influence the Distribution of Brown Howler Monkeys (Alouatta guariba clamitans) in a Fragmented Landscape in South Brazil?
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