Microbial pesticide application during defoliator outbreaks may reduce loss of regional forest beetle richness
نویسندگان
چکیده
منابع مشابه
Three Centuries of Synchronous Forest Defoliator Outbreaks in Western North America
Insect outbreaks often occur synchronously across large spatial scales, but the long-term temporal stability of the phenomenon and the mechanisms behind it are not well understood. In this study, I use a widespread lepidopteran defoliator native to western North America-the western spruce budworm-as a case study to explore patterns of and potential causes for synchronous population fluctuations...
متن کاملForest Development and Carbon Dynamics after Mountain Pine Beetle Outbreaks
Mountain pine beetles periodically infest pine forests in western North America, killing many or most overstory pine stems. The surviving secondary stand structure, along with recruited seedlings, will form the future canopy. Thus, even-aged pine stands become multiaged and multistoried. The species composition of affected stands will depend on the presence of nonpines and outbreak severity, am...
متن کاملBroad spectrum pesticide application alters natural enemy communities and may facilitate secondary pest outbreaks
Background Pesticide application is the dominant control method for arthropod pests in broad-acre arable systems. In Australia, organophosphate pesticides are often applied either prophylactically, or reactively, including at higher concentrations, to control crop establishment pests such as false wireworms and earth mite species. Organophosphates are reported to be disruptive to beneficial spe...
متن کاملSpatial Synchrony in Forest Insect Outbreaks: Roles of Regional Stochasticity
Spatial synchrony, that is, correlated population fluctuation over wide geographical areas, has been detected in diverse taxa and over various geographical scales. The most commonly suggested mechanisms to explain spatial synchrony include dispersal and regional stochasticity (i.e., “the Moran effect”). We analyzed landscape-scale historical outbreak data for six forest insect species: spruce b...
متن کاملApplication of microbial hot spots enhances pesticide degradation in soils.
Through transfer of an active, isoproturon degrading microbial community, pesticide mineralization could be successfully enhanced in various soils under laboratory and outdoor conditions. The microbes, extracted from a soil having high native ability to mineralize this chemical, were established on expanded clay particles and distributed to various soils in the form of microbial "hot spots". Bo...
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ژورنال
عنوان ژورنال: Ecosphere
سال: 2015
ISSN: 2150-8925
DOI: 10.1890/es14-00252.1