One of the largest populations of the Karner Blue Butterfly, a federally endangered species, is located in the Saratoga Watershed. We synthesized five years of demographic and habitat data collected by The Nature Conservancy and NY-DEC. Our results demonstrate that habitat characteristics and existing population size can predict much of the variation in how sub-populations grow or shrink in size over time, and reinforce the importance of targeted and consistent management practices in the future.
