和平阿薩巴斯卡三角洲（PAD）是一個動態的三角洲生態系統，由自然的周期性洪水驅動。 植被群落自然因洪水和乾旱而異，但長期的變化可以被檢測到。 具體問題包括：從水生生物群落轉移，侵占灌木物種和擴散入侵物種。
The Peace Athabasca Delta (PAD) is a dynamic deltaic ecosystem that is driven by natural, periodic floods. Vegetation communities naturally vary with floods and droughts, but changes in the long term can be detected. Specific concerns include: a shift away from aquatic communities, encroachment of shrubby species, and spread of invasive species.
Year, Transect, Number of Plots in Transect, Number of Plots Infested, Proportion of Plots Infested