Southern extension of the geographic range of black-and-gold howler monkeys (Alouatta caraya)

Mammalia ◽  
2019 ◽  
Vol 84 (1) ◽  
pp. 102-106 ◽  
Author(s):  
Márcia M.A. Jardim ◽  
Diego Queirolo ◽  
Felipe B. Peters ◽  
Fábio D. Mazim ◽  
Marina O. Favarini ◽  
...  
Keyword(s):  
Wide Distribution ◽  
Geographic Range ◽  
Howler Monkey ◽  
Forest Loss ◽  
Southern Brazil ◽  
Alouatta Caraya ◽  
Howler Monkeys ◽  
Pampa Biome ◽  
New Localities ◽  
Northeastern Argentina

Abstract The black-and-gold howler monkey (Alouatta caraya) is widely distributed in Brazil, Bolivia, Paraguay, and northeastern Argentina. Despite this wide distribution, it is locally threatened in some parts of its southern range by forest loss and fragmentation, and yellow fever outbreaks. We present 14 new localities of A. caraya occurrence in the Pampa biome of southern Brazil, extending its range southwards by approximately 100 km.

Comparative Stress Response of Black and Gold Howler Monkey (Alouatta caraya) in Urban and Rural Environments of Northern Argentina

2021 ◽  
pp. 1-8
Author(s):  
Julieta Fernández ◽  
Marina F. Ponzio ◽  
Verónica I. Cantarelli ◽  
Julie A. Clennon ◽  
María Sol Gennuso ◽  
...  
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Primate Species ◽  
Howler Monkey ◽  
Human Populations ◽  
Alouatta Caraya ◽  
Howler Monkeys ◽  
Natural Habitats ◽  
Rural Environments ◽  
Urban And Rural Areas

The expansion of human populations associated with urbanization results in extensive modification of natural habitats. While many species cannot persist in these highly modified environments, some species adopt new strategies, which contribute to their survival. Several primate species have persisted in altered habitats, including members of the genus <i>Alouatta</i>. To improve our understanding of this interplay, we compared glucocorticoid (GCC) levels in male and female black and gold howler monkeys (<i>Alouatta caraya</i>) in urban and rural areas in northeastern Argentina. Fecal samples (<i>n</i> = 60) were collected from adults and hormone extracts were analyzed by enzyme immunoassays (EIA). Monkeys living in urban areas (females: 109.15 ± 18.83; males: 106.15 ± 10.48) had lower GCC<i></i>levels than monkeys living in rural areas (females: 152.01 ± 19.50; males:139,82 ± 10.85). Interestingly, males living in urban areas had lower GCC levels compared to those living in rural areas, whereas no differences were observed in GCC levels between females living in urban and rural areas. While these results suggest that urban areas may provide a release from intergroup competition for male howler monkeys, future work is needed to better understand the dynamics of this association to best inform management and conservation of this vulnerable species.

scholarly journals New Locality for the Black-and-Gold Howler Monkey, Alouatta caraya (Humboldt, 1812), in Southern Brazil

2005 ◽  
Vol 13 (3) ◽  
pp. 34-36 ◽  
Author(s):  
Vanessa Barbisan Fortes ◽  
Fabiana Cristina Alves ◽  
Juliana Arpini
Keyword(s):  
Howler Monkey ◽  
Southern Brazil ◽  
Alouatta Caraya

Determinants of daily path length in black and gold howler monkeys (Alouatta caraya) in northeastern Argentina

2016 ◽  
Vol 78 (8) ◽  
pp. 825-837 ◽  
Author(s):  
Mariana Raño ◽  
Martin M. Kowalewski ◽  
Alexis M. Cerezo ◽  
Paul A. Garber
Keyword(s):  
Path Length ◽  
Alouatta Caraya ◽  
Howler Monkeys ◽  
Daily Path Length ◽  
Northeastern Argentina

Molecular identification of Leishmania in free-ranging black and gold howler monkeys (Alouatta caraya) in northeastern Argentina

Acta Tropica ◽  
2020 ◽  
Vol 210 ◽  
pp. 105534
Author(s):  
Mariela Florencia Martínez ◽  
Martín M. Kowalewski ◽  
Magalí Gabriela Giuliani ◽  
Soraya Alejandra Acardi ◽  
Oscar Daniel Salomón
Keyword(s):  
Molecular Identification ◽  
Alouatta Caraya ◽  
Howler Monkeys ◽  
Free Ranging ◽  
Northeastern Argentina

Color vision in the black howler monkey (Alouatta caraya)

2008 ◽  
Vol 25 (3) ◽  
pp. 243-248 ◽  
Author(s):  
ANTÔNIO C. ARAÚJO ◽  
JULIA J. DIDONET ◽  
CAROLINA S. ARAÚJO ◽  
PATRÍCIA G. SALETTI ◽  
TÂNIA R.J. BORGES ◽  
...  
Keyword(s):  
Color Vision ◽  
Molecular Genetic ◽  
Color Discrimination ◽  
Howler Monkey ◽  
Alouatta Caraya ◽  
Howler Monkeys ◽  
Genetic Studies ◽  
Behavioral Paradigm ◽  
Black Howler Monkey ◽  
Black Howler

Electrophysiological and molecular genetic studies have shown that howler monkeys (Alouatta) are unique among all studied platyrrhines: they have the potential to display trichromatic color vision among males and females. This study examined the color discrimination abilities of four howler monkeys (Alouatta caraya) through a series of tasks involving a behavioral paradigm of discrimination learning. The animals were maintained and housed as a group in the Zoological Gardens of Brasília and were tested in their own home cages. Stimuli consisting of pairs of Munsell color chips were presented in random brightness values to assure that discriminations were based on color rather than brightness cues. All the animals (three males, one female) successfully discriminated all the stimulus pairs, including those that would be expected to be difficult for a dichromatic monkey. These results are consistent with the earlier predictions suggesting that howler monkeys are routinely trichromatic.

Use of genetic tools to assess predation on reintroduced howler monkeys (Alouatta caraya) in Northeastern Argentina

Primates ◽  
2021 ◽  
Author(s):  
Luciana Inés Oklander ◽  
Mariela Caputo ◽  
Martin Kowalewski ◽  
Jorge Anfuso ◽  
Daniel Corach
Keyword(s):  
Alouatta Caraya ◽  
Howler Monkeys ◽  
Genetic Tools ◽  
Northeastern Argentina

scholarly journals Predation on Alouatta guariba clamitans Cabrera (Primates, Atelidae) by Leopardus pardalis (Linnaeus) (Carnivora, Felidae)

2005 ◽  
Vol 22 (3) ◽  
pp. 793-795 ◽  
Author(s):  
João M. D. Miranda ◽  
Itiberê P. Bernardi ◽  
Kauê C. Abreu ◽  
Fernando C. Passos
Keyword(s):  
Howler Monkey ◽  
Birds Of Prey ◽  
Southern Brazil ◽  
Neotropical Primates ◽  
Howler Monkeys ◽  
Leopardus Pardalis ◽  
Potential Predator ◽  
Faecal Samples ◽  
Alouatta Guariba Clamitans ◽  
Large Animals

There are a few studies about predation on primates. Howler monkeys, being relatively large animals, were believed to be preyed on successfully only by medium to large-sized carnivores and large birds of prey. Our study took place at Chácara Payquerê, which is situated in the municipality of Balsa Nova, State of Paraná, Southern Brazil. Fingers and nails from Alouatta guariba clamitans Cabrera, 1940 were founded in two faecal samples from Leopardus pardalis (Linnaeus, 1758). With our documentation large howler monkey remains in faeces, the possibility of ocelot being a potential predator of all Neotropical primates should be taken into consideration.

scholarly journals Range extension and first record of Euryzygomatomys spinosus (Rodentia, Echimyidae) in the Brazilian Cerrado

Check List ◽  
2015 ◽  
Vol 11 (5) ◽  
pp. 1742 ◽  
Author(s):  
Ana Carolina Loss ◽  
Marco Aurélio C. Pacheco ◽  
Yuri Luiz Reis Leite ◽  
Vilacio Caldara-Junior ◽  
Leonardo G. Lessa
Keyword(s):  
Atlantic Forest ◽  
Adult Male ◽  
National Park ◽  
First Record ◽  
Geographic Range ◽  
Southeastern Brazil ◽  
Southern Brazil ◽  
Brazilian Cerrado ◽  
Dry Grassland ◽  
Northeastern Argentina

We present herein the first record of Euryzygomatomys spinosus (G. Fischer, 1814) in the Brazilian Cerrado, based on two adult male specimens collected in a “campo limpo” (dry grassland) area at Sempre Vivas National Park, state of Minas Gerais, southeastern Brazil, in June and August 2014. This taxon was previously known only from the Brazilian Pampas, Paraguayan Chaco Humedo and Atlantic Forest of southeastern and southern Brazil, northeastern Argentina and southern Paraguay.  Our records increased the species geographic range 250 km northward, into the Cerrado ecoregion.

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