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Adoption in free-ranging red howler monkeys,Alouatta seniculus of Venezuela
Primates, 1992This report describes three cases of infant adoption in red howler monkeys (Alouatta seniculus) of Venezuela. In one case, a lactating female adopted her infant granddaughter after the infant's mother disappeared and the infant survived for the next 25 months.
Govindasamy Agoramoorthy +1 more
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American Journal of Primatology, 1998
Wild red howler monkeys (Alouatta seniculus) were translocated during the flooding of the forest at a hydroelectric dam site in French Guiana. For a variety of minor clinical procedures, 96 monkeys were anesthetized with various intramuscular injections of combinations of medetomidine and ketamine. The howler population was composed of healthy animals (
J C, Vié +5 more
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Wild red howler monkeys (Alouatta seniculus) were translocated during the flooding of the forest at a hydroelectric dam site in French Guiana. For a variety of minor clinical procedures, 96 monkeys were anesthetized with various intramuscular injections of combinations of medetomidine and ketamine. The howler population was composed of healthy animals (
J C, Vié +5 more
exaly +3 more sources
Fruit choice by red howler monkeys (Alouatta seniculus) in a tropical rain forest
American Journal of Primatology, 1996This paper presents and discusses aspects of fruit selectivity by red howler monkeys (Alouatta seniculus) in relation with morphological characteristics of fruits. These data are used to provide an answer to the following questions: which are the fruit characteristics that lead fruit choice of howler monkeys and to what extent fruit characteristics ...
exaly +3 more sources
Feeding habits of the red howler monkeys (Alouatta seniculus) in the Llanos of Venezuela
Mammalia, 1983FRANCISCO Braza
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Predation by jaguar on howler monkeys (Alouatta seniculus) in Venezuela
American Journal of Primatology, 1992AbstractWe document the loss of all but the youngest member of a troop of six howler monkeys due to probable jaguar predation during a 7‐month period in 1988. The formation of Guri Lake resulted in forest fragmentation which forced monkeys into new and unfamiliar areas and altered the balance of predator and prey populations, and may thus have ...
Angela, Peetz +2 more
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Cranial shape variation in adult howler monkeys (Alouatta seniculus)
American Journal of Primatology, 2017Howler monkeys (genusAlouatta) display a distinctive cranial architecture characterized by airorhynchy(or retroflexion of the facial skeleton on the cranial base), a small braincase, and a posteriorly oriented foramen magnum. This configuration has been associated with distinct factors including a high folivory diet, locomotion, and the presence of a ...
Luca Fiorenza, Emiliano Bruner
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Throat-Rubbing in Red Howler Monkeys (Alouatta Seniculus)
1983Olfactory communication in New World primates may be more developed than in most Old World monkeys and apes (Epple and Lorenz, 1967; Eisenberg, 1977). All the New World genera have glands in the sternal and/or gular region. The purpose of this paper is to describe throat-rubbing in wild red howler monkeys (Alouatta seniculus).
Ranka Sekulic, John F. Eisenberg
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International Journal of Primatology, 2002
We surveyed howler (Alouatta) populations at 36 sites throughout the Brazilian state of Rondonia, in southwestern Amazonia, using quantitative (line transect surveys) and qualitative (interviews) methods. We recorded the red howler (Alouatta seniculus) at only one- third of the sites, and the species was relatively rare at most of them, especially in ...
Simone Iwanaga, Stephen F. Ferrari
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We surveyed howler (Alouatta) populations at 36 sites throughout the Brazilian state of Rondonia, in southwestern Amazonia, using quantitative (line transect surveys) and qualitative (interviews) methods. We recorded the red howler (Alouatta seniculus) at only one- third of the sites, and the species was relatively rare at most of them, especially in ...
Simone Iwanaga, Stephen F. Ferrari
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Social Relations within Troops of Red Howler Monkeys (Alouatta seniculus)
Folia Primatologica, 1972This report on the intratroop social behavior of Alouatta seniculus, based on field work in Trinidad and Venezuela, emphasizes the importance of apparently matrifocal groupings. Comparisons are made with other species, particularly to A. villosa, and red howlers are found to do more allogrooming then the latter and differ in sexual and other behavior ...
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Chromosomal variations in the primate Alouatta seniculus seniculus.
Folia primatologica; international journal of primatology, 1976Chromosome analysis in 23 specimens of Alouatta s. seniculus trapped in different localities of Colombia were examined with the C- and Q-banding techniques. The chromosome numbers (2n=44) showed variations from 2n = 43 to 2n = 45 involving three and five microchromosomes, respectively.
E J, Yunis +3 more
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