Results 71 to 80 of about 26,591 (200)
Present state of evolution and systematics of Platyrrhiny.
Anthropological Science, 1995 南米大陸の熱帯雨林に生息する広鼻猿類の系統進化に関する研究は, ここ十数年の相次ぐ化石種の発見と分子生物学的手法の発展により飛躍的に進展している。現在の主な論点は, マーモセット類•サキ類•クモザル類 (ホエザルを含む) の大きな3つのグループと, 残りの4属 (リスザル•ヨザル•ティティモンキー•オマキザル)との系統的な関係である。特に後4者の系統的な位置に関しては, 古生物学的な解析,現生種の形態学的解析, 分子生物学的解析のいずれも決定的な結論を出すに至っていない. 広鼻猿類の進化の初期段階で, 非常に短い時間に急速に互いに分岐したのではないかと思われる。
openaire +2 more sources
Zoologia (Curitiba), 2010 Adequate habituation of free-ranging subjects is essential for any field study, but is generally unsystematic. Here, attempts to habituate three titi monkey (Callicebus coimbrai Kobayashi & Langguth, 1999) groups are described, and factors determining ...
João Pedro Souza-Alves +1 more
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Vocalizations Reveal Species Differences in Endangered Lion Tamarins (Primates, Callitrichidae)
American Journal of Primatology, Volume 88, Issue 1, January 2026.Spectral parameters of vocalizations distinguish lion tamarin species. Peak frequency, center frequency, and frequency at 5% and 95% were the most informative measures for separating species, with the trill being the vocalization that showed the most differences, and Leontopithecus caissara being the most distinct species of all.
Maria Carolina Rodella Manzano +3 more
wiley +1 more source
Variación heterocromática del cariotipo, en el Género Cebus que habita en Colombia
Acta Biológica Colombiana, 2001 El entendimiento de la diversidad de los primates es esencial para establecer prioridades en losplanes de su conservación, la taxonomía precede la conservación y en la mayoría de los génerosde los primates Platyrrhini, la taxonomía aún es controvertida. (
OM. Torres, M. Leibovici
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The prion protein and New World primate phylogeny
Genetics and Molecular Biology, 2004 The PrP C prion protein contains 250 amino acids with some variation among species and is expressed in several cell types. PrP C is converted to PrP Sc by a post-translational process in which it acquires amino acid sequences of three-dimensional ...
Igor Schneider +3 more
doaj +1 more source
Ecology and Evolution, Volume 15, Issue 11, November 2025.Our study investigated the microbiomes of suprapubic and sternal scent glands in two wild tamarin species to explore their putative roles in odor production and communication. Using metagenomic sequencing, we identified 18 odor‐associated microbial taxa and 26 related metabolic pathways, finding significant differences in microbial diversity and ...
Silvia Carboni +5 more
wiley +1 more source
Caracterização do receptor de arginina vasopressina (AVPR1b) em primatas do novo mundo (PRIMATA, PLATYRRHINI) : implicações evolutivas [PDF]
, 2018 Os primatas do Novo Mundo (pNM; Primata, Platyrrhini) apresentam uma série de características consideradas incomuns entre mamíferos eutérios, sobretudo o sistema monogâmico, o cuidado paterno direto e gestações gemelares.
Felkl, Aline Brugnera
core +1 more source
Genetics Selection Evolution, 2000 Fragile sites are points of preferential breakage that may be involved in chromosome rearrangements. Induction of common fragile sites (c-fra) and spontaneous breakage were analyzed in two New World Monkeys species: Saimiri boliviensis (SBO) and Alouatta
Mudry Marta +2 more
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Sistemática, evolución y paleobiogeografía de los primates Platyrrhini [PDF]
, 2013 Estudios recientes acerca de las relaciones filogenéticas entre los primates platirrinos basados en datos morfológicos y moleculares, concuerdan en una división en tres familias: Atelidae, Pitheciidae y Cebidae, con la única excepción de Aotus, que ...
Tejedor, Marcelo Fabian +1 more
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Revista Argentina de Antropología Biológica, 2014 Los humanos modernos han sido caracterizados por una morfología craneana extremadamente lobulada, considerada como una respuesta al aumento significativo en el tamaño del cerebro, que los diferencia de manera marcada del resto de los Primates.
Rocatti, Guido +3 more
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