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Mar 13, 2024 · Azara’s night monkey (Aotus azarae) lives in the Gran Chaco region of South America, according to the New England Primate Conservancy. The Colombian night monkey (Aotus lemurinus) is known by a...
Night monkeys are threatened by habitat loss, the pet trade, hunting for bushmeat, and by biomedical research. They constitute one of the few monkey species affected by the often deadly human malaria protozoan Plasmodium falciparum and are therefore used as experimental subjects in malaria research.
First described in 1823 by German naturalist Johann Baptist von Spix, Spix’s night monkey (Aotus vociferans)—also known as the Colombian gray night monkey, noisy night monkey, or Spix’s owl monkey—is found north of the Amazon River in Brazil, Colombia, Ecuador, and Peru. Its range is limited by geographical barriers: the…
- Molecular Markers and Species Identification
- Phylogenetic Considerations
- Evolutionary, Karyological and Taxonomic Considerations
Our findings showed different MT-CO1, MT-CO2, MT-CYB and SRY haplotypes between Aotus species although some SRY haplotypes differed by only one nucleotide (see Figure 2A), as was the case of A. infulatus (IN2) when compared to A. azarae boliviensis (AB1) and A. nigriceps(NI2). Identification based on MT-CO2was shown to be unreliable for closely rel...
Analyses of the different datasets showed that Dat-CO1 contained the highest number of PI sites (182), closely followed by Dat-CYB (181), while Dat-CO2, showed the lowest number (66). This might be related to the smaller size of MT-CO2 (696 bp) respective to MT-CO1 (1,557 bp) and MT-CYB (1,140 bp) although a similar number of PI sites was found in ...
Our phylogenetic reconstructions question the classical grouping of red neck and grey neck species proposed by Hershkovitz . All phylogenetic reconstructions based on mtDNA showed that the lineage leading to the grey neck species A. trivirgatus was a sister lineage of the one leading to the red neck clade (A. nigriceps (A. azarae, A. infulatus)). I...
- Albert N Menezes, Cibele R Bonvicino, Hector N Seuánez
- 2010
Night monkeys (Aotus spp.) typically live in small family groups consisting of a monogamous pair and their offspring. These groups are highly cohesive, with strong bonds between members. Both parents are involved in raising the young, exhibiting cooperative breeding behavior.
Sep 14, 2023 · In this chapter, we synthesize data from anatomy, neuroscience, psychophysics, genetics, and behavioral ecology to review the key adaptations of the owl monkey visual system for dim light vision. First, we review Aotus evolutionary history and highlight the dramatic variation available in light environments at night.
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Both males and females of Aotus trivirgatus are similar in size with a body length of 24 to 47 cm. Tail length ranges from 22 to 42 cm. Coats range from grizzled brown, gray or reddish backs and off white to orange undersides.
