Each year, we may expect serious outbreaks of insects — both disease-carrying and crop-destroying species — in excess of anything we have ever known.
The limited tree diversity in urban areas increases the likelihood of mass mortality from outbreaks of insects and disease.
The BDA module is designed to simulate tree mortality following major outbreaks of insects and/or disease.
Frequent outbreaks of insects and diseases have been recorded in the native forests of western North America during the last few decades, but the distribution of these outbreaks has been far from uniform.
The dynamics, structure, and landscape heterogeneity of the lodgepole pine and spruce-fir forests of the Rocky Mountains in the western United States are shaped by wildfires, outbreaks of insects, and the potential interactions between these disturbances.
These differences may be explained by the combination of other disturbances associated with fires, e.g. avalanches, outbreaks of insects, or up-rooting of trees [25], [26].
We do not rule out the role of other disturbances, e.g. avalanches, rock-falls, up-rooting of trees, or outbreaks of insects such as Zeiraphera diniana, that also affect subalpine forest dynamics and its landscape pattern [46].
It even allows it to forecast outbreaks of insect-borne diseases such as malaria.The system has commercial uses, too.
A report released by the US Forest Service last week found that worsening drought conditions will increase the risk of tree and shrub death as well as unleash outbreaks of insect infestation.
Even more startling for an administration that has spent seven years in denial, Mr. Johnson acknowledged that "warming of the climate system is unequivocal," that man-made emissions are largely responsible and that the consequences could be devastating — more wildfires, more droughts, rising sea levels, more intense hurricanes, more outbreaks of insect-borne diseases.
