Results 131 to 140 of about 487 (161)
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Translocation of red howler monkeys (Alouatta seniculus) in French Guiana
Biological Conservation, 2000A wide translocation program was conducted on neotropical fauna in French Guiana during the filling of a hydroelectric reservoir. Red howler monkeys (Alouatta seniculus) were studied because available data on their behavior in undisturbed conditions provided the basis for behavioral comparison with translocated animals. A resident howler population was
Richard-Hansen, Cecile +2 more
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The Function of Howling in Red Howler Monkeys (Alouatta Seniculus)
Behaviour, 1982Die lauten Rufe der Roten Brullaffen (Alouatta seniculus) wurden wahrend eines Jahres in vier nachbarlichen Gruppen, deren Territorialgebiete sich uberschnitten, beobachtet. Obwohl die Brullaffen aus verschiedenen Anlassen brullten, waren mindestens 94.2% der Rufe jeder der beobachteten Gruppen wahrend des Tages gegen zu nahe, sichtbare Affen gerichtet,
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Loud Calls of Adult Male Red Howling Monkeys (Alouatta seniculus)
Folia Primatologica, 1986Loud calls of adult male red howlers (Alouatta seniculus) inhabiting a deciduous and semideciduous open woodland site in Venezuela were recorded opportunistically and categorized by ear and sonographically as barks and roars. Five to six different bark syllables were identified as occurring singly or in sequences of doublets and triplets.
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Positional Behavior and Limb Bone Adaptations in Red Howling Monkeys (Alouatta seniculus)
Folia Primatologica, 1987Morphological adaptations to climbing (a scansorial mode of quadrupedal, arboreal locomotion practised on twigs and small branches) are identified by relating anatomical details of limb bones to a sample of 6,136 instantaneous observational recordings on the positional behavior and support uses of 20 different free-ranging, adult red howlers.
M A, Schön Ybarra, M A, Schön
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The Population Structure of Red Howler Monkeys (Alouatta seniculus) in Trinidad and Venezuela
Folia Primatologica, 1972The small troops and roughly even adult sexual ratio of Alouatta seniculus, studied in Bush Bush Forest in Trinidad and on the ranch Hato Masaguaral in the llanos of Venezuela, are more similar to A. caraya than to A. palliata. Other aspects of the troop composition are discussed.
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Craniodental allometry and heterochrony in two howler monkeys: Alouatta seniculus and A. palliata
American Journal of Primatology, 1994AbstractCranial dimensions were collected from growth series for two sexually dimorphic congeners: Alouatta seniculus, the red howler monkey, and Alouatta palliata, the mantled howler monkey. In both A. seniculus and A. palliata, ontogenetic series for males and females were compared to evaluate if sexual dimorphism in skull form results from the ...
Matthew J, Ravosa, Callum F, Ross
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Incisor microwear and feeding behavior in Alouatta seniculus and Cebus olivaceus
American Journal of Primatology, 1990AbstractDental microwear features on the labial surfaces of maxillary central incisors of wild‐shot museum specimens of Cebus olivaceus (n = 11) and Alouatta seniculus (n = 7) were examined at 200 × by polarized light microscopy. While wear scratch orientation patterns do not differ between the two samples, Cebus has a significantly higher density of ...
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Male Dispersal among Free-Ranging Red Howler Monkeys (Alouatta seniculus) in Venezuela
Folia Primatologica, 1993CRC ...
Agoramoorthy, G., Rudran, Rasanayagam
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Ecological Modelling, 2010
Overexploitation of wildlife populations occurs across the humid tropics and is a significant threat to the long-term survival of large-bodied primates. To investigate the impacts of hunting on primates and ways to mitigate them, we developed a spatially explicit, individual-based model for a landscape that included hunted and un-hunted areas.
Ruscena Wiederholt +3 more
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Overexploitation of wildlife populations occurs across the humid tropics and is a significant threat to the long-term survival of large-bodied primates. To investigate the impacts of hunting on primates and ways to mitigate them, we developed a spatially explicit, individual-based model for a landscape that included hunted and un-hunted areas.
Ruscena Wiederholt +3 more
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Male Relationships and Infant Deaths in Red Howler Monkeys (Alouatta seniculus)
Zeitschrift für Tierpsychologie, 1983AbstractFor decades howler monkeys were considered to be among the most peaceful animals. Recent investigators, however, have noted that, although male aggression is rare, it may be extremely severe; the criteria used to quantify howler relationships should therefore be different from those used for other primates.
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