Titlebook: Dynamics of Forest Insect Populations; Patterns, Causes, Im Alan A. Berryman Book 1988 Springer Science+Business Media New York 1988 ecosys

強(qiáng)化

CHANT

The Beech Scale, this insect makes it highly conspicuous and the absence of any similar coccid on beech largely eliminates the chore of identification. Nevertheless, during the nineteenth century, this organism was described as a fungus (.), the curly wax threads being taken for fungal hyphae..

熄滅

The Nantucket Pine Tip Moth, of .. is generally clear except for its relationship with . Miller, thought by some to be a subspecies.. The primary difference is that . overwinters in infested shoots and . overwinters in the duff and soil beneath the trees.

生命層

謙虛的人

The Larch Budmoth in the Alps,a revival of the tourist industry, and having the new insecticide DDT at hand, it seemed only appropriate that the tourist office urge the forest service to control the pest. This was the beginning of what was to become a 34-year study of the population dynamics of the larch budmoth (Fig. 1).

miracle

Nick Biziouras,Beverly Crawfordcated that about 44,000 ha (170 sq mi) were infested.. The population spread rapidly and uniformly until, in 1970, it occupied virtually all larch stands in the intermountain regions of eastern Washington, Oregon, and northern Idaho (Fig. 1).

發(fā)酵

Confidential

Nick Biziouras,Beverly Crawfordstern Europe, adult and larval coloration patterns become less variable and females progressively lose the ability to fly..’. The range of the gypsy moth was extended through a series of founder events westward into Europe and from France to North America.

粗糙濫制

David and Goliath: Airbus vs. Boeing in Asiathe subfamily Diprioninae, in the Palaearactic and Nearctic continents, respectively. In the Old World, the subfamily is represented by the genera . (essentially in Europe), . (North Africa), and . (Asia) and by a few species of American origin, such as . Geoffroy.

突襲

Book 1988 they ought to know. The experts advise a Cure. The Cure can be almost anything: holy water from Mecca, a Government Commis- sion, a culture of bacteria, poison, prayers denunciatory or tactful, a new god, a trap, a Pied Piper. The Cures have only one thing in common: with a little patience they alw