Results 131 to 140 of about 2,220 (160)
Some of the next articles are maybe not open access.
Adaptability in stone tool use by wild capuchin monkeys (Sapajus libidinosus)
American Journal of Primatology, 2014Capuchin monkeys are well known for population variation in the use of stone tools and the types of food items consumed. In order to determine adaptability in stone tool use, we investigated a never before studied population of wild capuchin monkey (Sapajus libidinosus) displaying terrestrial habits in a Caatinga environment. To carry out this study we
Bárbara Lins Caldas De Moraes +2 more
openaire +2 more sources
Kidney cysts in a capuchin monkey (Sapajus libidinosus) – case report
Clínica Veterinária, 2017Cystic lesions in the renal parenchyma can be attributed to several types of pathologic conditions, such as acquired renal cysts and polycystic kidney disease. Some clinical criteria are used to distinguish between these two diseases. Ultrasonography aids in the characterization of cystic lesions in the abdominal organs, allowing the diagnosis of these
Géssica Giselle A. Silva Araújo +5 more
openaire +1 more source
International Journal of Primatology, 2017
Fecal steroid analysis is a powerful noninvasive tool for behavioral endocrinology, but enzyme immunoassays (EIAs) require experimental validation before they are applied. We conducted a physiological validation of an in-house EIA measuring fecal cortisol metabolites (FCMs) by performing an adrenocorticotrophic hormone (ACTH) challenge, dexamethasone ...
Olivia Mendonça-Furtado +2 more
openaire +1 more source
Fecal steroid analysis is a powerful noninvasive tool for behavioral endocrinology, but enzyme immunoassays (EIAs) require experimental validation before they are applied. We conducted a physiological validation of an in-house EIA measuring fecal cortisol metabolites (FCMs) by performing an adrenocorticotrophic hormone (ACTH) challenge, dexamethasone ...
Olivia Mendonça-Furtado +2 more
openaire +1 more source
Female bearded capuchin monkeys (Sapajus libidinosus) use objects to solicit the sexual partner.
Journal of Comparative Psychology, 2017Female wild bearded capuchins (Sapajus libidinosus) living at Serra da Capivara National Park (SCNP) that use stone and stick tools during foraging occasionally toss or throw stones at the male during courtship. We report similar behaviors in a different population that uses stones as tools in foraging.
Visalberghi, E. +4 more
openaire +2 more sources
Diversity of nutcracking tool sites used bySapajus libidinosusin BrazilianCerrado
American Journal of Primatology, 2015Cracking nuts with tools is a behavior documented in a small number of populations of tufted capuchins, mainly in semi‐aridCaatingaandCaatinga–Cerradotransitional environments of northeastern Brazil. Only one of these populations inhabits the less aridCerradoin Central Brazil, where environments are composed of a heterogeneous mosaic of fields ...
Francisco Dyonísio C, Mendes +5 more
openaire +2 more sources
Primates, 2021
We describe predation on an adult rodent rock cavy and sharing of the carcass by a group of male bearded capuchins. Despite many studies, such an interaction has never been observed in bearded capuchins. Rock cavies are large rodents weighing around 25% of the weight of an adult male bearded capuchin.
Robério Freire Filho +2 more
openaire +2 more sources
We describe predation on an adult rodent rock cavy and sharing of the carcass by a group of male bearded capuchins. Despite many studies, such an interaction has never been observed in bearded capuchins. Rock cavies are large rodents weighing around 25% of the weight of an adult male bearded capuchin.
Robério Freire Filho +2 more
openaire +2 more sources
Journal of Medical Primatology, 2018
AbstractBackgroundEstablish baseline values for ophthalmic diagnostic tests inSapajus libidinosus.MethodsOphthalmic diagnostic tests, namely Schirmer tear test 1 (STT‐1), intraocular pressure (IOP), B‐mode ultrasound, culture of the bacterial conjunctival microbiota, and conjunctival exfoliative cytology, were performed in 15S.
Karla Priscila Garrido Bezerra +8 more
openaire +2 more sources
AbstractBackgroundEstablish baseline values for ophthalmic diagnostic tests inSapajus libidinosus.MethodsOphthalmic diagnostic tests, namely Schirmer tear test 1 (STT‐1), intraocular pressure (IOP), B‐mode ultrasound, culture of the bacterial conjunctival microbiota, and conjunctival exfoliative cytology, were performed in 15S.
Karla Priscila Garrido Bezerra +8 more
openaire +2 more sources
Animal Cognition, 2016
The habitual use of tools by wild capuchin monkeys presents a unique opportunity to study the maintenance and transmission of traditions. Young capuchins spend several years interacting with nuts before cracking them efficiently with stone tools. Using a two-observer method, we quantified the magnitude of the social influences that sustain this long ...
Eshchar Y +4 more
openaire +3 more sources
The habitual use of tools by wild capuchin monkeys presents a unique opportunity to study the maintenance and transmission of traditions. Young capuchins spend several years interacting with nuts before cracking them efficiently with stone tools. Using a two-observer method, we quantified the magnitude of the social influences that sustain this long ...
Eshchar Y +4 more
openaire +3 more sources
American Journal of Primatology, 2016
Cashew nuts are very nutritious but so well defended by caustic chemicals that very few species eat them. We investigated how wild bearded capuchin monkeys (Sapajus libidinosus) living at Fazenda Boa Vista (FBV; Piauí, Brazil) process cashew nuts (Anacardiumspp.) to avoid the caustic chemicals contained in the seed mesocarp. We recorded the behavior of
Visalberghi Elisabetta +5 more
openaire +2 more sources
Cashew nuts are very nutritious but so well defended by caustic chemicals that very few species eat them. We investigated how wild bearded capuchin monkeys (Sapajus libidinosus) living at Fazenda Boa Vista (FBV; Piauí, Brazil) process cashew nuts (Anacardiumspp.) to avoid the caustic chemicals contained in the seed mesocarp. We recorded the behavior of
Visalberghi Elisabetta +5 more
openaire +2 more sources
Journal of Human Evolution, 2012
Understanding the selective pressures that drove the evolution of bipedalism in the human lineage may help inform researchers about the locomotor mode(s) of pre-hominin ancestors. Several selective pressures have been hypothesized, including the need to carry food, tools, or infants. Bearded capuchin monkeys are an excellent primate in which to examine
Marcos, Duarte +4 more
openaire +2 more sources
Understanding the selective pressures that drove the evolution of bipedalism in the human lineage may help inform researchers about the locomotor mode(s) of pre-hominin ancestors. Several selective pressures have been hypothesized, including the need to carry food, tools, or infants. Bearded capuchin monkeys are an excellent primate in which to examine
Marcos, Duarte +4 more
openaire +2 more sources