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Techniques for the Study of Primate Population Ecology (1981) / Chapter Skim
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COMMENTARY
Pages 197-204

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 197...
... Intensive studies in small sample plots are mandated for small primates and those primate species that are cryptic or nocturnal if the aim is a close approximation to actual density. Table 9-1 reflects current judgments concerning the appropriate census technique for a range of primate species.
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From page 198...
... Forest primates must be censused in a three-dimensional space; they are often detected by sound before they are sighted; and they often move from their original positions before being detected. Three standardized studies are available that compare the accuracy of census methods for forest primates with density estimates determined from detailed studies.
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From page 199...
... In contrast, density estimates based on sighting distances proved to be less adequate than perpendicular distance estimates under Janson and Terborgh's (in press) survey conditions because they overestimated population densities based on detailed studies of their target species.
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From page 200...
... ] llsl°^ |l^3 Ji >l PU ia CQ £-H t/5
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From page 201...
... > e ^ E Sign 1 2 | 1 .a °- 8 E e 18~"2-S E O O 18 O £ ^22 -8" 11 + + a rt Si •o £ i « « S .M +j 5 -o * - « n « 6 g i/i [A .s e M w rt O O 3 ~ O 5 MOO V K 5, 1l ebidae Aotus trivirgatus Aotus trivirgatus Cebus apella 1 ?
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From page 202...
... Using recent field data of known individuals, Dittus (see Chapter 5, this volume) showed that aging techniques can be further refined by taking into account the fact that captive individuals grow and mature faster than wild individuals, and the size classes may be expected to vary between sexes, places, and years, reflecting the nutritional status of those populations.
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From page 203...
... It is to be hoped that standardization of methodology will make possible field data that are comparable between investigators and study areas and will yield predictive statements concerning the behavior of natural populations.
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Key Terms

  • density estimates
  • census methods
  • strip width
  • relative abundance
  • field data

  • size classes
  • seasonal changes
  • transect estimates
  • age classes
  • forest primates

  • survey conditions
  • estimates based
  • aotus trivirgatus
  • variable strip
  • distance estimates

  • carrying capacity
  • perpendicular distance
  • detailed studies
  • common species
  • transect census

  • home range
  • actual density
  • overestimated population
  • habitat type
  • density plot

  • dimensional space
  • sufficiently recent
  • real density
  • reflects current
  • provide increasingly


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