Butternut populations refer to the groups of butternut trees, a species native to North America. These trees are known for their distinctive, elongated shape and produce edible nuts. However, butternut populations have been declining due to factors like disease, habitat loss, and competition from other species. Conservation efforts are underway to protect and restore butternut populations. This includes planting disease-resistant varieties and preserving natural habitats. Monitoring these populations helps researchers understand their health and viability, ensuring that butternut trees can thrive in their native environments for future generations.