Systems ecology is a branch of ecology that focuses on studying ecosystems as complex systems made up of interacting components. It looks at the relationships between organisms and their environment, including the flow of energy, nutrients, and information within an ecosystem. Systems ecologists use mathematical models, data analysis, and computer simulations to understand the dynamics of ecosystems and how different factors influence their structure and function. By studying these relationships, systems ecology helps us to better understand the interconnectedness of species and processes within ecosystems and how they respond to environmental changes.