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キーワード:
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要旨:
Samples of arthropods in canopies of selected trees were collected by
pyrethrum-fogging during the early part of the 1977 dry season from three
types of neotropical forest: várzea and igapó forest which are inundated
seasonally by white-water and black-water rivers respectively, and terra
firme forest which is not subject to inundation. Sampling areas were within
30 km of Manaus, Brazil. Number and biomass of arthropods sampled was
highest in terra firme, intermediate in igapó and lowest in várzea. Ants were
dominant on all sites and a high percentage of their species were found only
in one type of forest. It is considered that many taxa are incompletely
sampled with the fogging technique. Further statements on the canopy
fauna of Central Amazonian forest types should be based on fogging data
gathered from all seasons and compared with material sampled with other
methods at the same time and locality.
