Results 51 to 60 of about 1,142 (183)

The Testis of Capybaras (Hydrochoerus hydrochaeris) [PDF]

Journal of Mammalogy, 1997
We examined the histology of testes of 134 capybaras ( Hydrochoerus hydrochaeris ) and the relationship among mass of testes, body mass, and the ratio of seminiferous tubules to interstitial tissue. The capybara had a low gonadosomatic index (0.14% of body weight, epididymides included) and one of the highest known proportion of nonspermatogenic tissue
J. R. Moreira, J. R. Clarke, D. W. Macdonald   +2 more
openaire   +1 more source

Rickettsiales in South America: A Systematic Review of Their Molecular Detection and Distribution in Arthropods and Vertebrates

Public Health Challenges, Volume 5, Issue 2, June 2026.
ABSTRACT Bacteria of the order Rickettsiales comprise a diverse group of obligate intracellular microorganisms that are globally distributed and highly prevalent in tropical and subtropical regions. In South America, these bacteria have been associated with arthropod vectors, such as ticks, fleas, mites, lice, and certain dipterans, as well as with a ...
Cristian J. Zamorano‐Gómez, Paula A. Ossa‐López, Estefani T. Martínez‐Sánchez, Fredy A. Rivera‐Paéz   +3 more
wiley   +1 more source

Valores hematológicos de capivaras (Hydrochoerus Hydrochaeris) criadas em cativeiro no município de Botucatu, SP Hematological values of captive capybara (Hydrochoerus Hydrochaeris) in Botucatu county, São paulo, SP, Brazil

Ciência Rural, 2000
Utilizaram-se onze capivaras (Hydrochoerus hydrochaeris), cinco machos e seis fêmeas, sadias, com dois anos de idade, criadas em regime de cativeiro na Fazenda Experimental Lageado da FMVZ - UNESP de Botucatu - SP, submetidas à anestesia dissociativa com
Maid Eliane Arouca, Luciana Batalha de Miranda, Raimundo Sousa Lopes, Regina Kiomi Takahira, Aguemi Kohayagawa, Paulo César Ciarlini, Eunice Oba   +6 more
doaj   +1 more source

Spatial Ecology and Habitat Selection by Jaguars and Pumas in a Protected Area in the Atlantic Forest of Brazil

Austral Ecology, Volume 51, Issue 6, June 2026.
ABSTRACT Understanding animal distribution is crucial for elucidating natural history, population dynamics, and inter‐ and intraspecific interactions. This knowledge informs the planning and evaluation of management and conservation strategies, particularly for sympatric, scarce, and threatened species such as jaguars (Panthera onca) and pumas (Puma ...
Ricardo Corassa Arrais, Cynthia Elisa Widmer, Fernanda Cavalcanti de Azevedo, Frederico Gemesio Lemos, Fernando Cesar Cascelli de Azevedo   +4 more
wiley   +1 more source

Capybara Ranching for Amazonia? [PDF]

Oryx, 1979
Cattle ranching for beef is slowly spreading in the Amazonian flood-plains and could lead to a serious loss of wildlife habitats. The author suggests that the indigenous capybara could be a satisfactory alternative for ranching, and one that would not require swamps or areas that are flooded seasonally to be drained.
openaire   +1 more source

Morphological Evaluation of the Hip Joint and Pelvic Limb Bones of the Lowland Tapir (Tapirus terrestris Linnaeus, 1758) Using Radiography and Computed Tomography

Anatomia, Histologia, Embryologia, Volume 55, Issue 3, May 2026.
ABSTRACT The study aimed to characterize, through imaging examinations—including radiographs and computed tomography—the hip joint and the bones of the thigh, leg and feet in Lowland tapirs (Tapirus terrestris). Ten pelvic limbs were collected, two from juveniles and the remaining from adults. The femoral head exhibited a rounded morphology with a well‐
Heloísa Coppini de Lima, Sheila Canevese Rahal, Jeana Pereira da Silva, Rodrigo Hidalgo Friciello Teixeira, Maria Jaqueline Mamprim, Bruno Critelli Carvalho, Miriam Harumi Tsunemi   +6 more
wiley   +1 more source

Ultrasound call detection in capybara [PDF]

Pesquisa Veterinária Brasileira, 2012
The vocal repertoire of some animal species has been considered a non-invasive tool to predict distress reactivity. In rats ultrasound emissions were reported as distress indicator. Capybaras[ vocal repertoire was reported recently and seems to have ultrasound calls, but this has not yet been confirmed.
Nogueira, Selene S.C., Barros, Kamila S., Almeida, Márcio H., Pedroza, Janine P., Nogueira Filho, Sérgio L.G., Tokumaru, Rosana S.   +5 more
openaire   +4 more sources

Anaplasmataceae circulation in wild mammals and ticks from Goiás state, midwestern Brazil [PDF]

Revista Brasileira de Parasitologia Veterinária
The Anaplasmataceae family comprises vector-borne alpha-proteobacteria with significant impact on animal and human health. In Brazil, the diversity and circulation of these agents in wild mammals require further exploration.
Raphaela Bueno Mendes Bittencourt, Ana Cláudia Calchi, Luiz Gustavo Schneider de Oliveira, Fabiana Marques Boabaid, Lucianne Cardoso Neves, Nicolas Jalowitzki de Lima, Ennya Rafaella Neves Cardoso, Gabriel Cândido dos Santos, Lucas Lisboa Nunes Bonifácio, Filipe Dantas-Torres, Leo Caetano Fernandes da Silva, Marcos Rogério André, Felipe da Silva Krawczak   +12 more
doaj   +2 more sources

Fecal Material of Captive Wild Animals as Source of CAZymes With Application Potential

ChemBioChem, Volume 27, Issue 8, April 2026.
With the goal to identify a novel resource of enzymes, we tested for the potential of fecal metagenomes of captive wild animals to provide CAZymes. Our data show that CAZymes profiles differed between animals with varying gut physiology and diet, and that metagenomes of captive wild animals can be considered source of diverse CAZymes including rare and
Julia Bechtner, Jiri Hosek, Clarissa Schwab   +2 more
wiley   +1 more source

Unveiling the Dietary Selection of Lowland Tapirs (Tapirus terrestris) in a Tropical Rainforest

Ecology and Evolution, Volume 16, Issue 3, March 2026.
Large terrestrial herbivores, such as lowland tapirs (Tapirus terrestris) present many dietary ecological roles in their habitat. In this article, we investigated the diet of lowland tapirs in a tropical rainforest combining different techniques such as DNA metabarcoding, fieldwork, and plant functional traits.
Laís Lautenschlager, Yuri Souza, Luísa Genes, Bruno H. Saranholi, Carla C. Cristina Gestich, Carina I. Motta, Valesca B. Zipparro, Pedro Galetti Jr., Mauro Galetti, Kenneth J. Feeley   +9 more
wiley   +1 more source