作者: Robert Coulson , Paul Pulley , Lewis Edson
DOI: 10.1016/B978-0-12-215350-1.50009-0
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摘要: Basic requirements for estimating effects of mortality agents on bark beetle populations are examined. Emphasis is placed sampling within-tree both host insect and agent at single points in time. The estimation procedures described should be suitable obtaining information the distribution abundance through space When multiple samples to collected topological procedure superior other options presented. estimates surface area or volume habitat, density insect, agent. An example interspecific competition between Dendroctonus frontalis Monochamus titillator This comparable woodpecker predation D. from logistical analytical standpoints.