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A rapidly changing climate and human disturbance patterns have accelerated the spread of invasive plants species in Alaska. Non-native plant invasions can disrupt pollinator services to native plants and have the potential to impact the pollination and fruit set in berry species important for subsistence harvest. My dissertation aims to address the dual need for greater understanding of the impacts of invasive plants on pollination of berry species in boreal ecosystems and the need for research on education strategies that best prepare Alaskans to respond to the issue. I integrate an ecological field experiment, a citizen science program where data is used to validate phenology models derived from heraium data,...
Invasive species have already reduced biodiversity, damaged the environment, threatened human health, and created economic losses worldwide. Alaska, by contrast, had relatively few invasive species for most of the 20th century. But increased population and development in recent years have brought an influx of non-native species. However, the problem remains in its infancy, and Alaska still has the opportunity to take advantage of cost-effective management, given appropriate coordination among government agencies and private groups. The authors collected data on spending to manage invasive species in Alaska between 2007 and 2011. Such spending increased from $4.7 million in 2007 to $6.9 million in 2010, and it totaled...
Alaska has relatively few invasive plants, and most of them are found only along the state's limited road system. One of the most widely distributed invasives in the state, Melilotus alba Medik., or sweetclover, has been sown both as a forage crop and as a roadside stabilization species. Melilotus has recently been found to have moved from roadsides to the flood plains of at least three glacial rivers. This species has aggressively colonized the lower Stikine River flood plain and occurs there in dense, monospecific stands. It is at an earlier stage of colonization of the Matanuska River and Nenana River flood plains as well. We are developing a network model to examine the spatial relationships among roads, river...
map background search result map search result map Non-Native Plant Management Plan for Campbell Tract, Anchorage, Alaska Invasive Plant Monitoring in Unalakleet and Upriver 2012 Anaktuvuk Pass vegetation study: disturbed sites A multi-scale framework for evaluating the benefits and costs of alternative management strategies against invasive plants Exotic plants in Wrangell-St. Elias National Park and Preserve 2003 field season report Predicting weed invasion in Canada under climate change: Evaluating evolutionary potential Non-Native Plant Management Plan for Campbell Tract, Anchorage, Alaska Invasive Plant Monitoring in Unalakleet and Upriver 2012 Anaktuvuk Pass vegetation study: disturbed sites Exotic plants in Wrangell-St. Elias National Park and Preserve 2003 field season report A multi-scale framework for evaluating the benefits and costs of alternative management strategies against invasive plants Predicting weed invasion in Canada under climate change: Evaluating evolutionary potential