Fresh as a spring bouquet, it's also a purposeful introduction to Ms. Edmonson the songwriter, intuitive about melody and handy with a turn of phrase.
He says it emphasizes the need for more careful scrutiny of the economic and ecological issues surrounding the purposeful introduction of exotic insects.
The participants confirmed that this purposeful introduction of research literature helped to clarify the distinction between MEAs and other forms of open-ended STEM teaching.
It is the purposeful introduction and establishment of one or more natural enemies from region of origin of an exotic pest, specifically for the purpose of suppressing the abundance of the pest in a new target region to a level at which it no longer causes economic damage.
It is the purposeful introduction and establishment of one or more natural enemies from the region of origin of an exotic pest, specifically for the purpose of suppressing the abundance of the pest in a new target region to a level at which it no longer causes economic damage.
Accidental or purposeful introduction would require a rapid response, but detection may be challenging.
Thus, 'assisted migration,' the purposeful introduction of species in regions made newly suitable through climate change, might be especially necessary for poor dispersers (McLachlan et al. 2007; Van der Veken et al. 2008).
In coming decades, many other potentially harmful species that have arrived through purposeful or accidental introduction are positioned to use the Erie Canal and cause problems for New York's lakes and rivers.
We cover several specific mechanisms including: eutrophication, UV radiation, acid rain, increased atmospheric carbon dioxide concentrations, invasive species introductions, various purposeful aquatic plant management techniques (chemical, mechanical, biological, and physical), and restoration.
