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Neotropical Primates Field Studies and Conservation : Proceedings of a Symposium on the Distribution and Abundance of Neotropical Primates (1976) / Chapter Skim
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The Population and Conservation of Howler Monkeys in Venezuela and Trinidad
Pages 101-109

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From page 101...
... Census data from work in 1969-1970 and 1972 on Hato Masaguaral are analyzed to show the need for a large sample size in estimating such parameters as sex ratio and to provide an idea of the population characteristics of howler monkeys in a protected llanos area.
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From page 102...
... The category of adult male was assigned to males of apparently full size in body, throat, and beard; it may have taken 2 yr beyond the juvenile stage to achieve fully adult characteristics. Utilizing some behavioral features on occasion to make assignments is almost unavoidable (e.g., an individual making a deep, dawn howl must be an adult male, or an imperfectly seen individual crawling jerkily over the body of a large monkey must be a recent infant)
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From page 104...
... Q_ O O 10 20 30 40 50 HOURS OF WORK 60 70 80 TABLE 1 Summer 1972 Census in Hato Masaguaral: Troops Identified by Letters and Equated, in Some Instances to the Numbered 1969-1970 Troops by Identification of Individuals*
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From page 105...
... . A steady population level need not imply that Middle and Eastern forests are experiencing a death rate equivalent to the birth rate.
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From page 106...
... The adult sex ratios are remarkably stable, part of which is surely accidental. The subadult ratios imply that the subadult male stage lasts at least twice as long as that of subadult females.
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From page 107...
... apportioned among 10 national parks and 3 natural monuments. Six forest reserves total an additional 1,813,000 ha.
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From page 108...
... Bush Bush Wildlife Sanctuary, 1,550 ha set aside in 1968, includes the elevated areas of Bush Bush Island and Bois Neuf Forest in the seasonally flooded Nariva Swamp, a major feature of the central eastern side of Trinidad. Bush Bush Forest has been studied since 1959, principally by the Trinidad Regional Virus Laboratory (TRVL)
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From page 109...
... A major problem in Trinidad's Bush Bush Wildlife Sanctuary is enforcing protection. Venezuela has considerable need for the promulgation of more protected areas, as well as enforcement of existing laws.
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Key Terms

  • hato masaguaral
  • wildlife sanctuary
  • bush bush
  • howler monkeys
  • national parks

  • bush wildlife
  • wildlife sanctuaries
  • western forest
  • trinity hills
  • central range

  • hills wildlife
  • range wildlife
  • age categories
  • male female
  • water supply

  • juv inf
  • national park
  • set aside
  • subad juv
  • alouatta seniculus

  • forest troop
  • bush forest
  • cloud forest
  • eastern forest
  • six forest

  • total western
  • chronological age
  • age category
  • red howler
  • age assignment


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