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

charisma

paroxysm

s an enquiry into the "natural rhythms" of insect abundance in forested ecosystems and into the forces that give rise to these rhythms. Forests form unique environ­ ments for such studies because one can find them growing under relatively natural (pri­ meval) conditions as well as under the domination of huma978-1-4899-0791-2978-1-4899-0789-9

GIDDY

FRONT

The Spruce Budworm in Eastern North America,rimarily on the new growth of balsam fir (.), red spruce (.), white spruce (.), and black spruce (.). Sometimes it feeds on other conifers, such as eastern larch (.), eastern hemlock (.), Engelmann spruce (.), subalpine fir (.), and eastern white pine (.)..

加剧

The Gypsy Moth,stern 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.

内阁

The Pine Sawfly in Central France,the 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.

Motilin

序曲

Walled Towns during the Wars of Religion 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..

Accommodation

野蛮

he explosive and destructive nature of its outbreaks, the Douglas-fir tussock moth has achieved much deserved notoriety among forest managers. For this reason, considerable effort has been made in recent years to understand the dynamics of tussock moth populations and to develop methods for minimizing their impact..