Results 171 to 180 of about 1,736 (183)
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Collective group movement and leadership in wild black howler monkeys (Alouatta pigra)
Behavioral Ecology and Sociobiology, 2012Maintaining social cohesion through coordinating traveling time and direction is a primary benefit of group living in mammals. During a 15-month study, we investigated socioecological factors underlying leadership of collective group movements in three multimale–multifemale groups of black howler monkeys (Alouatta pigra) at Palenque National Park (PNP),
Sarie Van Belle +2 more
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Breeding behaviors in the black howler monkey (Alouatta pigra) of belize
Primates, 1983Adulterous breeding between a female howling monkey (Alouatta pigra) of one troop with a male of an adjacent troop occurred despite territorial defense between the two troops. The specific behaviors are described as well as a synopsis of daily events which occurred between the female and two males from adjacent troops.
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Population Size and Characteristics of Alouatta pigra Before and After a Major Hurricane
International Journal of Primatology, 2007Although some environmental risks and resources are known to affect the evolution of primate social groups, we know little about the effect of major natural disturbances on primate populations. Hurricane Iris hit the Monkey River watershed in southern Belize in October 2001, presenting a unique opportunity to document the effects of a natural disaster ...
Mary S. M. Pavelka +2 more
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The Systematic Status of the Black Howler Monkey, Alouatta Pigra Lawrence
Journal of Mammalogy, 1970An apparent case of sympatry between two supposed races of Alouatta pallida (Gray) was discovered near Macuspana, Tabasco, Mexico. Howler monkeys in the Tabascan series were easily separated into two distinct groups based on various characteristics of the cranium, dentition, and pelage.
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Female participation in collective group defense in black howler monkeys (Alouatta pigra)
American Journal of Primatology, 2015Many group‐living animals actively defend a home range against neighboring groups. In many of these societies, males are the primary participants during group defense, while female participation ranges from seldom to frequent. Among howler monkeys (Alouattaspp.), loud calls (i.e., howling) are often used in the context of intergroup spacing as a form ...
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Molecular detection of Bifidobacterium spp. in faeces of black howler monkeys (Alouatta pigra)
Journal of Medical Primatology, 2018AbstractBackgroundBifidobacterium genus are considered to be beneficial bacteria for their hosts; however, knowledge about the specific species that are part of the gut microbiome of howler monkeys is scarce. Polymerase chain reaction (PCR) is a useful technique for the identification of non‐cultivable or difficult to grow bacterial species.
Dolores Hernández‐Rodríguez +4 more
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Group Structure and Dynamics in Black Howlers (Alouatta pigra): A 7-year Perspective
International Journal of Primatology, 2015The long-term monitoring of group structure and dynamics is critical to the study of primate ecology and evolutionary processes, as well as to understand the responses of individuals to changes in their environments. We monitored individually recognized black howlers (Alouatta pigra) belonging to 11 groups for 7 yr in different habitats and landscapes ...
Pedro Américo D. Dias +3 more
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