11 documents found, page 1 of 2
High Proportion of Male Faeces in Jaguar Populations
Palomares, F.; Roques, Séverine; Chávez, Cuauhtémoc; Silveira, Leandro; Keller, Claudia; Sollmann, Rahel; Prado, Denise Mello doFaeces provide relevant biological information which includes, with the application of genetic techniques, the sex and identity of individuals that defecated, thus providing potentially useful data on the behaviour and ecology of individuals, as well as the dynamics and structure of populations. This paper presents estimates of the sex ratio of different felid species (jaguar, Panthera onca; puma, Puma concolor...
Checklist of chelonians from the upper madeira river and the lower Madeira–Puru...
Keller, Claudia; Villamarín, Francisco; Bernhard, Rafael; Silva, Daniely Félix daWe present data on occurrence of chelonians for the Madeira River (southwestern Amazon, Brazil). Sampling was undertaken along the BR-319 Highway in the Madeira-Purus interfluvium and along a 125‑km stretch of the upper Madeira River. Findings were contrasted with a checklist of species expected to occur in the region according to current distribution maps, and with literature data for the Madeira subbasin. Out...
Hatching success, delay of emergence and hatchling biometry of Testudo graeca i...
Paniagua, Carmen Díaz; Keller, Claudia; Andreu, Ana
Características de los refugios diarios y estacionales de Testudo graeca en Donana
Keller, Claudia; Paniagua, Carmen Díaz; Andreu, Ana
First record of the bushy-tailed opossum, Glironia venusta, Thomas, 1912, (Dide...
Calzada, Javier; Delibes, Miguel; Keller, Claudia; Palomares, Francisco; Magnusson, William ErnestUm indivíduo de Glironia venusta (Didelphimorphia), foi observado na Reserva Florestal Adolpho Ducke, Manaus, Amazonas, Brasil. Existem apenas 17 outros registros publicados desta espécie de marsupial, a maioria da década de 80. No Brasil, G. venusta havia sido registrada em três outras localidades, no Pará, Amazonas e Rondônia. Com este registro em uma das áreas mais intensivamente estudadas na Amazônia, ganha...
Fine-scale habitat segregation between two ecologically similar top predators
Palomares, F.; Fernández, Néstor; Roques, Séverine; Chávez, Cuauhtémoc; Silveira, Leandro; Keller, Claudia; Adrados, BegoñaSimilar, coexisting species often segregate along the spatial ecological axis. Here, we examine if two top predators (jaguars and pumas) present different fine-scale habitat use in areas of coexistence, and discuss if the observed pattern can be explained by the risk of interference competition between them. Interference competition theory predicts that pumas should avoid habitats or areas used by jaguars (the ...
Redescription of Colostethus marchesianus (Melin, 1941) from Its Type Locality
Caldwell, Janalee; Lima, Albertina Pimentel; Keller, Claudia
O esvaziamento de recursos humanos no Instituto Nacional de Pesquisas da Amazôn...
Manzi, Antônio Ocimar; Magalhães, Célio Ubirajara; Keller, Claudia; dos Santos, José Laurindo Campos; Camargo, José Luís Campana; Piedade, Maria Teresa
Assessment of reproductive state in the turtle Mauremys leprosa: a comparison b...
Keller, Claudia
The appendicular skeleton of Liolaemus occipitalis (Sauria, Iguanidae)
Keller, Claudia; Krause, Lígia