09/23/2020
The leading threats to the Karner Blue Butterfly habitat at Saratoga Spa State Park are invasive and opportunistic native plant species. Invasive species, like Oriental bittersweet, are non-native and grow quickly in the habitat, threatening the native plant community. Opportunistic native plants, like staghorn sumac or quaking aspen, take advantage of the abundance of light and space the open fields of the Karner habitat provides, and proliferate rapidly. As a result, many of the trees and nectar species that characterize the Karner habitat are being out-competed. The presence of these aggressively growing plants has changed the dynamic of the habitat, and if left unchecked, the habitat will no longer be suitable for the Karner Blue Butterfly.
This summer, our invasive species technicians worked tirelessly to remove a couple of acres worth of sumac, aspen, and bittersweet. By removing these dense stands of vegetation, we created open areas of disturbed soil, perfect for planting! This week we are planting native nectar species like wild lupine, goat's rue, and butterfly w**d in the ongoing effort to improve the habitat. Find us along the trails this week to see the planting progress!