The study of ecosystems within the field of ecology is termed ecosystem ecology. This sub-discipline focuses on the relationships and interactions between living organisms and their physical environment, examining energy flow, nutrient cycling, and the structure and function of ecosystems. Researchers in ecosystem ecology explore aspects such as biodiversity, productivity, and the impact of human activities on ecological dynamics. Understanding these interactions is essential for conservation efforts and assessing the health of ecosystems in the face of climate change, habitat destruction, and pollution.