What is changing leaf color and losing leaves?

Changing leaf color and losing leaves, a process known as abscission, typically occurs in deciduous trees during autumn. As days shorten and temperatures drop, chlorophyll breaks down, revealing other pigments like carotenoids and anthocyanins that produce vibrant reds, yellows, and Oranges. This change signals the tree to conserve water and energy, leading to the shedding of leaves to minimize moisture loss during winter. Ultimately, this adaptation helps trees survive the cold months by reducing stress and resource consumption.