Sentences with phrase «of insect outbreaks»

«Recent climate changes in this region may have had substantial impact on the carbon balance of Canadian boreal forests as a result of increased fire frequency, an unprecedented expansion of insect outbreaks, and widespread drought - induced tree mortality,» the authors write, but focused their study on drought.

«In context of climate change, you see increases of both insect outbreaks and fires, which has sparked concerns about their interactions,» said Garrett Meigs, a postdoctoral research associate at the University of Vermont and lead author of the study.

Not exact matches

The significant increase in the insect - borne diseases was due in part to the outbreak of Zika, the mosquito - borne disease that can cause severe birth defects.

In a global level, those centres are coordinated by the FAO in Rome, which has an information service in charge of monitoring the situation throughout the insect's distribution area and forecasting the risks of outbreaks and invasions.

Although current drought worries have been focused in the West — Western states have experienced insect outbreaks; mass tree die - offs; loss of water and carbon; bigger and more costly wildfires; and economic impacts to timber stands due to severe, multiyear drought — in the wake of a changing climate, the report notes that «all U.S. forests are vulnerable to drought.»

Built by Precision Hawk of Indianapolis, the craft's thermal camera is meant to find outbreaks of insects and crop disease, which show up as hotspots when stressed plants lose their ability to regulate heat.

During outbreaks, millions of the insects descend at nearly the same time, gnawing tunnels en masse.

In central British Columbia, the insects have destroyed more than 14 million hectares of trees — an area the size of Connecticut — in the single largest outbreak the world has ever seen.

The forests in the Coweeta Basin reflect the disturbance history of the region, which in addition to climate change has experienced early 20th century logging, drought, hurricanes, and insect and disease outbreaks, these last including the extirpation of the American chestnut, once the most important species in southern Appalachian forests.

However, it may not always be obvious whether human activity or a forest's natural dynamics are at play in, for example, the dieback of a stand or the outbreak of an insect herbivore.

This extreme «hygienic behavior,» as it's technically called, is an effective way of containing disease outbreaks in crowded insect colonies.

In the case of the western spruce budworm, a cream - colored insect that especially enjoys munching on conifers, the analysis showed in the first few years after an outbreak fire severity is low, but over the course of decades it increases.

Researchers from the University of Vermont and Oregon State University used spatial models and statistical analyses to map 81 fires as well as insect outbreaks over a 25 - year period in Oregon and Washington state.

Insect outbreaks — increasingly responsible for creating post-apocalyptic swaths of forest in the West — do not add fuel to forest fires.

«We will likely always be faced with the threat of novel outbreak viruses originating in animals or insects.

«Ecologists generally assume that plants high in nitrogen will facilitate insect outbreaks,» says Fiona Clissold, a nutritional physiological ecologist at the University of Sydney in Australia.

The study, published online Aug. 17 in the journal Applied and Environmental Microbiology, describes a new method for tracking the geographic range of this airborne insect pathogenic fungus from areas of a disease outbreak.

A number of factors, including insect outbreaks and late frost damage, are known to affect sugar maple.

In this section, we will consider the impact of changes in fire, insect, and pathogen outbreaks on forests, as well as on soil and carbon storage, for which we have better capacity for forecasting (Table 4 - 4).

Program fellows from the 2009 — 2014 grant tackled problems of interest to Kansans such as the expansion of woody vegetation in rangelands, disease outbreaks in small mammal populations, or how insects respond to temperature change.

Be it the horseshoe crab whose eggs feed millions of migrating shorebirds; bats that suppress insect outbreaks in a warming climate; or corals that shelter and feed oceans of fish, while protecting our shorelines from storms — there are no technological alternatives, nor is there enough money on the planet, to replace these free services.

The mountain pine beetle (Dendroctonus ponderosae Hopkins, Coleoptera: Curculionidae, Scolytinae) is a native insect of the pine forests of western North America, and its populations periodically erupt into large - scale outbreaks.

Insect outbreaks such as this represent an important mechanism by which climate change may undermine the ability of northern forests to take up and store atmospheric carbon, and such impacts should be accounted for in large - scale modelling analyses.

According to Stevens, the effect that rising temperatures have had on insects could be the subject of a film all its own, especially in light of the Zika virus outbreak.

This team is the first to account for large scale insect outbreaks in an analysis of forest carbon balances - and to show the positive feedback loop between climate change and warmth loving insect pests.

Are there outbreaks of insect populations creating adverse consequences?

Climate Reality: Native, Ustream.TV: 24 Events... 24 Time Zones... 24 Hours of Reality Droughts, floods, heat waves, insect outbreaks, wildfires, sea leve.

He uses tree - ring records in combination with other natural archives and documentary sources to reconstruct the histories of fire, insect outbreaks, human land uses, and climate.

Although global forests currently capture and store more carbon each year than they emit, 46 the ability of forests to act as large, global carbon absorbers («sinks») may be reduced by projected increased disturbances from insect outbreaks, 47 forest fire, 48 and drought, 49 leading to increases in tree mortality and carbon emissions.

Climate change has very likely increased the size and number of wildfires, insect outbreaks, pathogens, disease outbreaks, and tree mortality in the interior West, the Southwest, and Alaska.

Outbreaks of native insects and diseases are expected to occur in response to future warming temperatures and a drier environment, but tree mortality is not likely to be uniformly distributed across the landscape.

The length of the growing season in interior Alaska has increased 45 % over the last century7 and that trend is projected to continue.8 This could improve conditions for agriculture where moisture is adequate, but will reduce water storage and increase the risks of more extensive wildfire and insect outbreaks across much of Alaska.9, 10 Changes in dates of snowmelt and freeze - up would influence seasonal migration of birds and other animals, increase the likelihood and rate of northerly range expansion of native and non-native species, alter the habitats of both ecologically important and endangered species, and affect ocean currents.11

Because of its cold - adapted features and rapid warming, climate change impacts on Alaska are already pronounced, including earlier spring snowmelt, reduced sea ice, widespread glacier retreat, warmer permafrost, drier landscapes, and more extensive insect outbreaks and wildfire, as described below.

Which means that all the other regional changes in the Northwest noted in the NCA — wildfires, insect outbreaks, changes in the timing of stream flow, etc. — are also largely a result of influences other than human - caused climate change.

There are certainly many documented cases of major insect outbreaks before AGW became an issue.

Some massive outbreaks of destructive insects are controlled because the population of their predators increases (due to an abundant supply of food).

Are there any other periods of climate change that have been associated with outbreaks of insect borne disease?