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ACCS tracks all non-native plants known to occur in Alaska. In addition, ACCS has compiled biographies for over half of the 400 non-native plant species that are known or likely to occur in Alaska. In collaboration with biologists, land managers, and weed scientists across the state, ACCS has developed an invasive plant ranking system that helps evaluate the potential invasiveness and impacts of non-native plants to natural areas in Alaska (Carlson et al. 2008). With funding support from the U.S. Forest Service, the Alaska Association of Conservation Districts, and the University of Alaska, we have ranked approximately 170 non-native plant species to date.
The AKEPIC_Data is the entire AKEPIC dataset that is available in the ACCS data portal. This dataset includes positive and negative records. Due to the nature of the REST Service, all data are initially displayed the same within the map with the same symbolization. For example, professionals will survey for Elodea sp. in lakes and not detect it, creating a negative occurrence data point. However, the negative data will be displayed in the REST service the same as a positive occurrence. This can visually cause an alarmingly false rate of Elodea in the Alaska ecosystem. This can be corrected by querying or symbolizing the features based on the ‘Presence’ field, where ‘0’ values are a negative occurrence and ‘1’ values are a positive occurrence. It’s best to then display ‘0’ values on top of ‘1’ values to view current infestations since older infestations may have been treated and Elodea is no longer detected at the site.
Contact for AKEPIC
For questions or comments related to the AKEPIC project, procedures for collecting or submitting presence/absence data, or non-native plant identification or systematics, please contact Justin Fulkerson (primary contact).