Carolina Ribas - Academia.edu (original) (raw)

Papers by Carolina Ribas

Research paper thumbnail of Turismo de observação de mamíferos no Pantanal

Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais, 2022

O turismo de observação de fauna é uma atividade que vem aumentando gradativamente em diversas re... more O turismo de observação de fauna é uma atividade que vem aumentando gradativamente em diversas regiões no mundo, principalmente em países com alta diversidade, como o Brasil. Essa atividade busca a observação em vida livre de espécies carismáticas, entre as quais se enquadram muitos mamíferos. No Brasil, a atividade ainda é pouco desenvolvida, contudo o Pantanal é o bioma com o maior potencial para a expansão e a consolidação desse tipo de turismo. O Pantanal é considerado uma savana brasileira, com abundância de fauna, havendo facilidade para observação de grandes vertebrados, como porcos-do-mato, capivaras, ariranhas e até mesmo onças-pintadas. O turismo de observação de fauna tem aumentado nos últimos anos neste bioma, principalmente na região norte, no Pantanal de Cuiabá, e ao sul, no Pantanal de Miranda e Aquidauana. Neste artigo, discutimos as características da atividade de observação de fauna no Pantanal, as principais espécies observadas, as leis e regras já estabelecidas, ...

Research paper thumbnail of Monitorando ariranhas no Pantanal: 10 anos de aprendizado

Research paper thumbnail of A Biologia Da Ariranha Como Potencial Atrativo Para O Ecoturismo No Pantanal

IV Simpósio sobre recursos naturais e socio …, 2004

Research paper thumbnail of Polymorphic microsatellite loci from the endangered Giant Otter (Pteronura brasiliensis)

Conservation Genetics Resources, 2011

We describe the first microsatellite loci isolated from the giant otter (Pteronura brasiliensis),... more We describe the first microsatellite loci isolated from the giant otter (Pteronura brasiliensis), an endangered mustelid endemic to South America. Fourteen di-and trinucleotide polymorphic loci were characterised in fourteen individuals from the Pantanal wetlands, Central Brazil. Number of alleles per locus ranged from 2 to 5, and average observed heterozygosity was 0.577. Two loci were in linkage disequilibrium, and one further locus deviated from Hardy-Weinberg equilibrium, probably due to the presence of null alleles. The transferability of these markers to two other mustelids (Lontra longicaudis and Eira barbara) and to the mephitid Conepatus semistriatus was also evaluated. These loci are useful to study the ecology and evolution of these species.

Research paper thumbnail of Intraspecific agonism between Giant Otter groups

IUCN Otter Spec. Group Bull, 2004

Research paper thumbnail of Ictiofauna associada a bancos de herbáceas aquáticas flutuantes na ilha da marchantaria, rio Solimoes, Amazonia Central, Brasil

… de Ciencia Animal, 2011

Información del artículo Ictiofauna associada a bancos de herbáceas aquáticas flutuantes na ilha ... more Información del artículo Ictiofauna associada a bancos de herbáceas aquáticas flutuantes na ilha da marchantaria, rio Solimoes, Amazonia Central, Brasil.

Research paper thumbnail of Activity patterns of giant otters recorded by telemetry and camera traps

Ethology Ecology & Evolution, 2013

ABSTRACT The giant otter (Pteronura brasiliensis) is a social species that defends territories al... more ABSTRACT The giant otter (Pteronura brasiliensis) is a social species that defends territories along water bodies. Although some researchers have visually monitored otters during long periods at night, no nocturnal activity of the species has been recorded and giant otters are currently believed to be strictly diurnal. In this study, we present information about the activity patterns of groups of giant otters in the Brazilian Pantanal, using radio telemetry and camera trap data. We captured, implanted transmitters in, and monitored three male giant otters from different groups in the Miranda and the Vermelho Rivers between November 2009 and June 2011. The locations and behavior of the group were recorded at 30-min intervals from 05:00 to 19:00. Camera traps were positioned at the active dens and latrines of eight groups of giant otters in the Miranda, Vermelho and Negro Rivers between June 2010 and October 2011. The groups of giant otters were mostly crepuscular and diurnal, but 31% of the camera-trap recordings were nocturnal. Fishing was the most frequent (64%) behavior recorded by telemetry. Giant otters were recorded exiting the den mostly in the early morning (06:00) and entering the den at the end of the day (16:00 to 19:00). Nocturnal activity appeared to be associated with the need to defecate, prey availability nearby the den and predation risk.

Research paper thumbnail of Ariranhas comem jacarés em ambientes marginais no Pantanal Sul

Research paper thumbnail of Ictiofauna asociada a bancos de herbáceas acuáticas flotantes en la isla de la marchantaria, río solimões, amazonia central, brasil

Revista Colombiana de Ciencia Animal - RECIA

Aglomerados de herbáceas aquáticas constituem estruturas importantes para a complexidade e hetero... more Aglomerados de herbáceas aquáticas constituem estruturas importantes para a complexidade e heterogeneidade de habitats. Esta heterogeneidade exerce grande influência sobre as relações ecológicas entre os organismos a elas associados (LIMA E ARAÚJO-LIMA, 2004; PELICICE E AGOSTINHO, 2006). As partes submersas das macrófitas aquáticas são importantes habitats para diversos grupos de organismos (SÁNCHES-BOTERO et al., 2003), especialmente para peixes, que utilizam o substrato para desova, forrageamento e refúgio contra predadores (PELICICE E AGOSTINHO, 2006).

Research paper thumbnail of Giant otter alarm calls as potential mechanisms for individual discrimination and sexual selection

Research paper thumbnail of Giant otters feeding on caiman Evidence for an Expandedd trophic niche of

This article may be used for research, teaching, and private study purposes. Any substantial or s... more This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae, and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand, or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.

Research paper thumbnail of A case study of artificial feeding of an unweaned giant otter (Pteronura brasiliensis) cub

Latin American Journal of Aquatic Mammals, 2015

Research paper thumbnail of Distribution and status of giant otter (Pteronura brasiliensis) in the Pantanal wetland, Brazil

Latin American Journal of Aquatic Mammals, 2015

The giant otter (Pteronura brasiliensis) is listed as vulnerable in Brazil, is included in Append... more The giant otter (Pteronura brasiliensis) is listed as vulnerable in Brazil, is included in Appendix I of CITES and is classified as endangered by the IUCN. In Brazil, few viable populations persist outside the Amazon basin and the Pantanal wetland. Furthermore, there is limited information on the distribution and abundance of the existing populations. The aim of this study was to estimate the abundance of giant otters in the Pantanal wetland and to discuss the conservation status of this population. From July 2000 to November 2011 we conducted surveys throughout the Pantanal to detect the occurrence of giant otters by the observations of active dens and latrines and the direct visualization of the otters. We also monitored giant otter population in five rivers, which allowed us to obtain information on number of individuals, group size and linear density. The species was found to occur in almost every river stretch within the Pantanal wetland, as well as in several aquatic habitat types, indicating a remarkable recovery since the over-hunting during the 1960s. The population of giant otter in the Pantanal may reach 3969 (SD = 1103) individuals, based on our estimated number of individual per kilometer of rivers and creeks (0.54 ± 0.15), over a total of about 7350km of rivers and secondary channels occurring in the Pantanal. These results indicate that the Pantanal is an important area to preserve the giant otter and its habitat, despite the many threats that the species still faces in the region, such as increased vessel traffic, pollution and siltation, as well as disruption of the hydrological characteristics due to the construction of dams and riverbed sedimentation. Resumo: A ariranha Pteronura brasiliensis é listada como vulnerável no Brasil, está incluída no apêndice I da CITES e é classificada como em perigo de extinção pela IUCN. No Brasil, poucas populações viáveis persistem fora da Bacia Amazônica e do Pantanal. Além disso, há limitadas informações sobre a distribuição e abundância das populações existentes. O objetivo deste estudo foi estimar a abundância de ariranhas no Pantanal e discutir o status de conservação dessa população. De julho de 2000 a novembro de 2011 nós conduzimos levantamentos ao longo do Pantanal para detectar a ocorrência de ariranhas através de observações de tocas e latrinas ativas e da visualização direta da espécie. Nós também monitoramos populações de ariranhas em cinco rios, o que permitiu acessar informações sobre número de indivíduos, tamanho de grupo e densidade linear. A espécie foi encontrada ocorrendo em quase todos os trechos de rio monitorados no Pantanal, como também em muitos tipos de hábitats aquáticos, indicando uma notável recuperação desde a sobre-caça durante a década de 1960. A população de ariranhas no Pantanal pode chegar a 3969 (SD = 1103) indivíduos, de acordo com o número estimado de indivíduos por quilômetro de rios e riachos (0,54 ± 0,15), em um total de cerca de 7350km de rios e canais secundários ocorrendo no Pantanal. Estes resultados indicam que o Pantanal é uma das mais importantes áreas para preservar ariranhas e seus habitats, apesar de que a espécie enfrenta muitas ameaças na região, como o aumento da navegação, poluição e assoreamento, como também a descaracterização hidrológica devido a construções de barragens e sedimentação das cabeceiras dos rios.

Research paper thumbnail of More than meets the eye: kinship and social organization in giant otters (Pteronura brasiliensis)

Behavioral Ecology and Sociobiology, 2015

Research paper thumbnail of Giant otters feeding on caiman Evidence for an Expandedd trophic niche of

This article may be used for research, teaching, and private study purposes. Any substantial or s... more This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae, and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand, or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.

Research paper thumbnail of Giant otters feeding on caiman Evidence for an Expandedd trophic niche of

This article may be used for research, teaching, and private study purposes. Any substantial or s... more This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae, and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand, or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.

Research paper thumbnail of To each his own taste: latrines of the giant otter as a food resource for vertebrates in Southern Pantanal, Brazil

Studies on Neotropical Fauna and Environment, 2012

Pteronura brasiliensis feeds mainly on fish and uses communal latrines for territorial marking. T... more Pteronura brasiliensis feeds mainly on fish and uses communal latrines for territorial marking. The aim of this study was to identify the vertebrate species associated with latrines of giant otters and which species use the feces as a food resource. From December 2010 to June 2011, we positioned camera traps in front of 21 latrines of six different giant otter groups in 24 h cycles monthly. We registered 29 vertebrate species at latrines. Latrines seem to be used as a frequent food resource for some species. Studies of giant otter diets should take into account possible changes in relative abundance of prey items due to consumption of feces. Pteronura brasiliensis se alimenta principalmente de peixes e utiliza latrinas para marcação territorial. O objetivo deste estudo foi identificar as espécies de vertebrados associadas a latrinas de ariranhas e as espécies que utilizam as fezes como fonte de recurso. De dezembro de 2010 a junho de 2011, posicionamos armadilhas fotográficas em frente a 21 latrinas de seis grupos de ariranhas distintos, mensalmente em ciclos de 24 h. Registramos 29 espécies de vertebrados em latrinas. Latrinas parecem ser utilizadas como um recurso freqüente por algumas espécies. Estudos sobre dieta de ariranhas devem considerar a possibilidade de alterações na abundância relativa dos itens de presas.

Research paper thumbnail of To each his own taste: latrines of the giant otter as a food resource for vertebrates in Southern Pantanal, Brazil

Studies on Neotropical Fauna and Environment, 2012

Pteronura brasiliensis feeds mainly on fish and uses communal latrines for territorial marking. T... more Pteronura brasiliensis feeds mainly on fish and uses communal latrines for territorial marking. The aim of this study was to identify the vertebrate species associated with latrines of giant otters and which species use the feces as a food resource. From December 2010 to June 2011, we positioned camera traps in front of 21 latrines of six different giant otter groups in 24 h cycles monthly. We registered 29 vertebrate species at latrines. Latrines seem to be used as a frequent food resource for some species. Studies of giant otter diets should take into account possible changes in relative abundance of prey items due to consumption of feces. Pteronura brasiliensis se alimenta principalmente de peixes e utiliza latrinas para marcação territorial. O objetivo deste estudo foi identificar as espécies de vertebrados associadas a latrinas de ariranhas e as espécies que utilizam as fezes como fonte de recurso. De dezembro de 2010 a junho de 2011, posicionamos armadilhas fotográficas em frente a 21 latrinas de seis grupos de ariranhas distintos, mensalmente em ciclos de 24 h. Registramos 29 espécies de vertebrados em latrinas. Latrinas parecem ser utilizadas como um recurso freqüente por algumas espécies. Estudos sobre dieta de ariranhas devem considerar a possibilidade de alterações na abundância relativa dos itens de presas.

Research paper thumbnail of MONITORAMENTO DOS NINHOS ARTIFICIAIS INSTALADOS PARA AS ARARAS-AZUIS (Anodorhynchus hyacinthinus)

Ameaçada de extinção e com baixa taxa reprodutiva, um dos fatores limitantes à reprodução da arar... more Ameaçada de extinção e com baixa taxa reprodutiva, um dos fatores limitantes à reprodução da arara-azul Anodorhynchus hyacinthinus, no Pantanal é a escassez de cavidades em árvores. Além disso, no mesmo período de reprodução das araras-azuis outras espécies de aves estão se reproduzindo e a disputa pelos ninhos é grande. Para minimizar este fator, instalamos 70 ninhos artificiais, no período

Research paper thumbnail of Physical Exercises And Nutritional Guidance On Metabolic Syndrome In Obese Children And Adolescents

Medicine & Science in Sports & Exercise, 2005

Research paper thumbnail of Turismo de observação de mamíferos no Pantanal

Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais, 2022

O turismo de observação de fauna é uma atividade que vem aumentando gradativamente em diversas re... more O turismo de observação de fauna é uma atividade que vem aumentando gradativamente em diversas regiões no mundo, principalmente em países com alta diversidade, como o Brasil. Essa atividade busca a observação em vida livre de espécies carismáticas, entre as quais se enquadram muitos mamíferos. No Brasil, a atividade ainda é pouco desenvolvida, contudo o Pantanal é o bioma com o maior potencial para a expansão e a consolidação desse tipo de turismo. O Pantanal é considerado uma savana brasileira, com abundância de fauna, havendo facilidade para observação de grandes vertebrados, como porcos-do-mato, capivaras, ariranhas e até mesmo onças-pintadas. O turismo de observação de fauna tem aumentado nos últimos anos neste bioma, principalmente na região norte, no Pantanal de Cuiabá, e ao sul, no Pantanal de Miranda e Aquidauana. Neste artigo, discutimos as características da atividade de observação de fauna no Pantanal, as principais espécies observadas, as leis e regras já estabelecidas, ...

Research paper thumbnail of Monitorando ariranhas no Pantanal: 10 anos de aprendizado

Research paper thumbnail of A Biologia Da Ariranha Como Potencial Atrativo Para O Ecoturismo No Pantanal

IV Simpósio sobre recursos naturais e socio …, 2004

Research paper thumbnail of Polymorphic microsatellite loci from the endangered Giant Otter (Pteronura brasiliensis)

Conservation Genetics Resources, 2011

We describe the first microsatellite loci isolated from the giant otter (Pteronura brasiliensis),... more We describe the first microsatellite loci isolated from the giant otter (Pteronura brasiliensis), an endangered mustelid endemic to South America. Fourteen di-and trinucleotide polymorphic loci were characterised in fourteen individuals from the Pantanal wetlands, Central Brazil. Number of alleles per locus ranged from 2 to 5, and average observed heterozygosity was 0.577. Two loci were in linkage disequilibrium, and one further locus deviated from Hardy-Weinberg equilibrium, probably due to the presence of null alleles. The transferability of these markers to two other mustelids (Lontra longicaudis and Eira barbara) and to the mephitid Conepatus semistriatus was also evaluated. These loci are useful to study the ecology and evolution of these species.

Research paper thumbnail of Intraspecific agonism between Giant Otter groups

IUCN Otter Spec. Group Bull, 2004

Research paper thumbnail of Ictiofauna associada a bancos de herbáceas aquáticas flutuantes na ilha da marchantaria, rio Solimoes, Amazonia Central, Brasil

… de Ciencia Animal, 2011

Información del artículo Ictiofauna associada a bancos de herbáceas aquáticas flutuantes na ilha ... more Información del artículo Ictiofauna associada a bancos de herbáceas aquáticas flutuantes na ilha da marchantaria, rio Solimoes, Amazonia Central, Brasil.

Research paper thumbnail of Activity patterns of giant otters recorded by telemetry and camera traps

Ethology Ecology & Evolution, 2013

ABSTRACT The giant otter (Pteronura brasiliensis) is a social species that defends territories al... more ABSTRACT The giant otter (Pteronura brasiliensis) is a social species that defends territories along water bodies. Although some researchers have visually monitored otters during long periods at night, no nocturnal activity of the species has been recorded and giant otters are currently believed to be strictly diurnal. In this study, we present information about the activity patterns of groups of giant otters in the Brazilian Pantanal, using radio telemetry and camera trap data. We captured, implanted transmitters in, and monitored three male giant otters from different groups in the Miranda and the Vermelho Rivers between November 2009 and June 2011. The locations and behavior of the group were recorded at 30-min intervals from 05:00 to 19:00. Camera traps were positioned at the active dens and latrines of eight groups of giant otters in the Miranda, Vermelho and Negro Rivers between June 2010 and October 2011. The groups of giant otters were mostly crepuscular and diurnal, but 31% of the camera-trap recordings were nocturnal. Fishing was the most frequent (64%) behavior recorded by telemetry. Giant otters were recorded exiting the den mostly in the early morning (06:00) and entering the den at the end of the day (16:00 to 19:00). Nocturnal activity appeared to be associated with the need to defecate, prey availability nearby the den and predation risk.

Research paper thumbnail of Ariranhas comem jacarés em ambientes marginais no Pantanal Sul

Research paper thumbnail of Ictiofauna asociada a bancos de herbáceas acuáticas flotantes en la isla de la marchantaria, río solimões, amazonia central, brasil

Revista Colombiana de Ciencia Animal - RECIA

Aglomerados de herbáceas aquáticas constituem estruturas importantes para a complexidade e hetero... more Aglomerados de herbáceas aquáticas constituem estruturas importantes para a complexidade e heterogeneidade de habitats. Esta heterogeneidade exerce grande influência sobre as relações ecológicas entre os organismos a elas associados (LIMA E ARAÚJO-LIMA, 2004; PELICICE E AGOSTINHO, 2006). As partes submersas das macrófitas aquáticas são importantes habitats para diversos grupos de organismos (SÁNCHES-BOTERO et al., 2003), especialmente para peixes, que utilizam o substrato para desova, forrageamento e refúgio contra predadores (PELICICE E AGOSTINHO, 2006).

Research paper thumbnail of Giant otter alarm calls as potential mechanisms for individual discrimination and sexual selection

Research paper thumbnail of Giant otters feeding on caiman Evidence for an Expandedd trophic niche of

This article may be used for research, teaching, and private study purposes. Any substantial or s... more This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae, and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand, or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.

Research paper thumbnail of A case study of artificial feeding of an unweaned giant otter (Pteronura brasiliensis) cub

Latin American Journal of Aquatic Mammals, 2015

Research paper thumbnail of Distribution and status of giant otter (Pteronura brasiliensis) in the Pantanal wetland, Brazil

Latin American Journal of Aquatic Mammals, 2015

The giant otter (Pteronura brasiliensis) is listed as vulnerable in Brazil, is included in Append... more The giant otter (Pteronura brasiliensis) is listed as vulnerable in Brazil, is included in Appendix I of CITES and is classified as endangered by the IUCN. In Brazil, few viable populations persist outside the Amazon basin and the Pantanal wetland. Furthermore, there is limited information on the distribution and abundance of the existing populations. The aim of this study was to estimate the abundance of giant otters in the Pantanal wetland and to discuss the conservation status of this population. From July 2000 to November 2011 we conducted surveys throughout the Pantanal to detect the occurrence of giant otters by the observations of active dens and latrines and the direct visualization of the otters. We also monitored giant otter population in five rivers, which allowed us to obtain information on number of individuals, group size and linear density. The species was found to occur in almost every river stretch within the Pantanal wetland, as well as in several aquatic habitat types, indicating a remarkable recovery since the over-hunting during the 1960s. The population of giant otter in the Pantanal may reach 3969 (SD = 1103) individuals, based on our estimated number of individual per kilometer of rivers and creeks (0.54 ± 0.15), over a total of about 7350km of rivers and secondary channels occurring in the Pantanal. These results indicate that the Pantanal is an important area to preserve the giant otter and its habitat, despite the many threats that the species still faces in the region, such as increased vessel traffic, pollution and siltation, as well as disruption of the hydrological characteristics due to the construction of dams and riverbed sedimentation. Resumo: A ariranha Pteronura brasiliensis é listada como vulnerável no Brasil, está incluída no apêndice I da CITES e é classificada como em perigo de extinção pela IUCN. No Brasil, poucas populações viáveis persistem fora da Bacia Amazônica e do Pantanal. Além disso, há limitadas informações sobre a distribuição e abundância das populações existentes. O objetivo deste estudo foi estimar a abundância de ariranhas no Pantanal e discutir o status de conservação dessa população. De julho de 2000 a novembro de 2011 nós conduzimos levantamentos ao longo do Pantanal para detectar a ocorrência de ariranhas através de observações de tocas e latrinas ativas e da visualização direta da espécie. Nós também monitoramos populações de ariranhas em cinco rios, o que permitiu acessar informações sobre número de indivíduos, tamanho de grupo e densidade linear. A espécie foi encontrada ocorrendo em quase todos os trechos de rio monitorados no Pantanal, como também em muitos tipos de hábitats aquáticos, indicando uma notável recuperação desde a sobre-caça durante a década de 1960. A população de ariranhas no Pantanal pode chegar a 3969 (SD = 1103) indivíduos, de acordo com o número estimado de indivíduos por quilômetro de rios e riachos (0,54 ± 0,15), em um total de cerca de 7350km de rios e canais secundários ocorrendo no Pantanal. Estes resultados indicam que o Pantanal é uma das mais importantes áreas para preservar ariranhas e seus habitats, apesar de que a espécie enfrenta muitas ameaças na região, como o aumento da navegação, poluição e assoreamento, como também a descaracterização hidrológica devido a construções de barragens e sedimentação das cabeceiras dos rios.

Research paper thumbnail of More than meets the eye: kinship and social organization in giant otters (Pteronura brasiliensis)

Behavioral Ecology and Sociobiology, 2015

Research paper thumbnail of Giant otters feeding on caiman Evidence for an Expandedd trophic niche of

This article may be used for research, teaching, and private study purposes. Any substantial or s... more This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae, and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand, or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.

Research paper thumbnail of Giant otters feeding on caiman Evidence for an Expandedd trophic niche of

This article may be used for research, teaching, and private study purposes. Any substantial or s... more This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae, and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand, or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.

Research paper thumbnail of To each his own taste: latrines of the giant otter as a food resource for vertebrates in Southern Pantanal, Brazil

Studies on Neotropical Fauna and Environment, 2012

Pteronura brasiliensis feeds mainly on fish and uses communal latrines for territorial marking. T... more Pteronura brasiliensis feeds mainly on fish and uses communal latrines for territorial marking. The aim of this study was to identify the vertebrate species associated with latrines of giant otters and which species use the feces as a food resource. From December 2010 to June 2011, we positioned camera traps in front of 21 latrines of six different giant otter groups in 24 h cycles monthly. We registered 29 vertebrate species at latrines. Latrines seem to be used as a frequent food resource for some species. Studies of giant otter diets should take into account possible changes in relative abundance of prey items due to consumption of feces. Pteronura brasiliensis se alimenta principalmente de peixes e utiliza latrinas para marcação territorial. O objetivo deste estudo foi identificar as espécies de vertebrados associadas a latrinas de ariranhas e as espécies que utilizam as fezes como fonte de recurso. De dezembro de 2010 a junho de 2011, posicionamos armadilhas fotográficas em frente a 21 latrinas de seis grupos de ariranhas distintos, mensalmente em ciclos de 24 h. Registramos 29 espécies de vertebrados em latrinas. Latrinas parecem ser utilizadas como um recurso freqüente por algumas espécies. Estudos sobre dieta de ariranhas devem considerar a possibilidade de alterações na abundância relativa dos itens de presas.

Research paper thumbnail of To each his own taste: latrines of the giant otter as a food resource for vertebrates in Southern Pantanal, Brazil

Studies on Neotropical Fauna and Environment, 2012

Pteronura brasiliensis feeds mainly on fish and uses communal latrines for territorial marking. T... more Pteronura brasiliensis feeds mainly on fish and uses communal latrines for territorial marking. The aim of this study was to identify the vertebrate species associated with latrines of giant otters and which species use the feces as a food resource. From December 2010 to June 2011, we positioned camera traps in front of 21 latrines of six different giant otter groups in 24 h cycles monthly. We registered 29 vertebrate species at latrines. Latrines seem to be used as a frequent food resource for some species. Studies of giant otter diets should take into account possible changes in relative abundance of prey items due to consumption of feces. Pteronura brasiliensis se alimenta principalmente de peixes e utiliza latrinas para marcação territorial. O objetivo deste estudo foi identificar as espécies de vertebrados associadas a latrinas de ariranhas e as espécies que utilizam as fezes como fonte de recurso. De dezembro de 2010 a junho de 2011, posicionamos armadilhas fotográficas em frente a 21 latrinas de seis grupos de ariranhas distintos, mensalmente em ciclos de 24 h. Registramos 29 espécies de vertebrados em latrinas. Latrinas parecem ser utilizadas como um recurso freqüente por algumas espécies. Estudos sobre dieta de ariranhas devem considerar a possibilidade de alterações na abundância relativa dos itens de presas.

Research paper thumbnail of MONITORAMENTO DOS NINHOS ARTIFICIAIS INSTALADOS PARA AS ARARAS-AZUIS (Anodorhynchus hyacinthinus)

Ameaçada de extinção e com baixa taxa reprodutiva, um dos fatores limitantes à reprodução da arar... more Ameaçada de extinção e com baixa taxa reprodutiva, um dos fatores limitantes à reprodução da arara-azul Anodorhynchus hyacinthinus, no Pantanal é a escassez de cavidades em árvores. Além disso, no mesmo período de reprodução das araras-azuis outras espécies de aves estão se reproduzindo e a disputa pelos ninhos é grande. Para minimizar este fator, instalamos 70 ninhos artificiais, no período

Research paper thumbnail of Physical Exercises And Nutritional Guidance On Metabolic Syndrome In Obese Children And Adolescents

Medicine & Science in Sports & Exercise, 2005