Results 11 to 20 of about 11,958 (247)

Pinworms of the red howler monkey (Alouatta seniculus) in Colombia. Gathering the pieces of the pinworm-primate puzzle [PDF]

, 2020
Pinworms of primates are believed to be highly host specific parasites, forming co-evolutionary associations with their hosts. In order to assess the strength and reach of such evolutionary links, we need to have a broad understanding of the pinworm ...
Ospina, A. L., Perez-Ponce de Leon, G., Rondon, S., Solorzano-Garcia, B.   +3 more
core   +1 more source

A record of diurnal birth and placentophagia in an urban-dwelling female black and gold howler monkey (Alouatta caraya, Primates: Atelidae) in the City of Pilar, south-west Paraguay

Mammalogy Notes, 2023
Placentophagia, the postpartum consumption of the afterbirth by a mother, is widespread among eutherian mammals and linked to both endocrinological and ecological advantages.
Rachel V. Taylor, Mikel Redin Hurtado, Matthew T. Owen, Rebecca L. Smith   +3 more
doaj   +1 more source

Video-Sound Recording Devices Reveal Multiple Drivers of Nocturnal Vocalizations in Tibetan Macaques. [PDF]

Ecol Evol
This study investigates the nocturnal vocal behavior of Tibetan macaques in Huangshan, China, using 4G infrared cameras and passive acoustic monitoring (PAM). Findings reveal a bimodal vocalization pattern (18:00–19:00 and 21:00–23:00), influenced by sex, age, social centrality, kinship, and ecological factors such as wind direction, temperature, and ...
Gao X, Zhang T, Wang J, Yang D, Chen X, Yang P, Li W, Sun B, Xia D, Li J, Wang X.   +10 more
europepmc   +2 more sources

Male Reproductive Strategies in Black and Gold Howler Monkeys (Alouatta caraya) [PDF]

, 2013
Behavioral and demographic factors such as group size, social structure, dispersal patterns, and mating systems affect male reproductive success. In the present study, we analyze the relationship between social structure, genetic relatedness of adult ...
Corach, Daniel, Kowalewski, Miguel Martin, Oklander, Luciana Inés   +2 more
core   +1 more source

PROTOZOÁRIOS GASTRINTESTINAIS EM BUGIOS (Alouatta sp.) MANTIDOS EM CATIVEIRO

Ciência Animal Brasileira, 2009
Este estudo avaliou o parasitismo gastrintestinal por protozoários em bugios (Alouatta sp.) mantidos em cativeiro no município de Santa Maria, RS. Foram analisadas amostras de fezes de oito macacos das espécies Alouatta caraya e Alouatta guariba, pelo ...
Aleksandro Schafer da Silva, Luciana TOUREM GRESSLER, Valéria Maria Lara, Silvia Gonzalez Monteiro, Adriano Bonfim Carregaro   +4 more
doaj   +1 more source

Morphological study of the pineal gland of Alouatta belzebul

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2022
The pineal is a neuroendocrine gland responsible for the synthesis and release of melatonin. It is present in the brain of vertebrates, but its morphology and location vary considerably among species.
L.J.S. Mascarenhas, D.K.S. Pereira, K.F. Pereira, L.G. Pagliarin, V.S. Franzo, V.A.S. Vulcani   +5 more
doaj   +1 more source

Phylogenetic inferences of Atelinae (Platyrrhini) based on multi-directional chromosome painting in Brachyteles arachnoides, Ateles paniscus paniscus and Ateles b. marginatus [PDF]

, 2005
We performed multi-directional chromosome painting in a comparative cytogenetic study of the three Atelinae species Brachyteles arachnoides, Ateles paniscus paniscus and Ateles belzebuth marginatus, in order to reconstruct phylogenetic relationships ...
C. Nagamachi, Collins AC, Consigliere S, Dutrillaux B, Dutrillaux B, E.H.C. de Oliveira, Garcia F, Garcia F, I.J. Sbalqueiro, J.C. Pieczarka, Kay RF, Kellogg R, Kunkel LM, M. Neusser, Muller S, Pequignot E, Pieczarka JC, S. Müller   +17 more
core   +1 more source

Presença do Plasmodium brasilianum em macacos capturados na área de enchimento do reservatório da usina hidrelétrica de Tucuruí, Pará Presence of Plasmodium brasilianum in monkeys captured in the area of the flood of the dam of Tucuruí power plant, Pará

Memorias do Instituto Oswaldo Cruz, 1985
Examinando-se o sangue de 2.046 primatas capturados durante a "Operação Curupira" encontraram-se plasmódios semelhantes ao Plasmodium brasilianum em sete espécies ou subespécies: Alouatta belzebul belzebul, Alouatta belzebul nigerrima, Alouatta seniculus,
Mércia Eliane de Arruda
doaj   +1 more source

A family case of fertile human 45,X,psu dic(15;Y) males [PDF]

, 2006
We report on a familial case including four male probands from three generations with a 45,X,psu dic(15;Y)(p11.2;q12) karyotype. 45,X is usually associated with a female phenotype and only rarely with maleness, due to translocation of small Y chromosomal
Andersson M, Baumstark A, Buonadonna AL, C.S. Nagarajappa, Callen DF, Charchar FJ, Fracarro M, Freije D, Gal A, Haaf T, Hsu TC, I. Hansmann, I. Palaniappan, Koiffmann CP, Ma NS, Maserati E, Matthey R, N. Chandra, P.M. Gopinath, R. Wimmer, Ried T, Schempp W, Schiebel K, Schmid M, Siffroi JP, Subrt I, Tiemeier DC, W. Schempp, Weber B, White LM   +29 more
core   +1 more source

Phylogenetic relationships among Brazilian howler monkeys, genus Alouatta (Platyrrhini, Atelidae), based on g1-globin pseudogene sequences

Genetics and Molecular Biology, 1999
The genus Alouatta (howler monkeys) is the most widely distributed of New World primates, and has been arranged in three species groups: the Central American Alouatta palliata group and the South American Alouatta seniculus and Alouatta caraya groups ...
Carla Maria Meireles, John Czelusniak, Stephen F. Ferrari, Maria Paula Cruz Schneider, Morris Goodman   +4 more
doaj   +1 more source