Hydrological connectivity is a concept that refers to the degree to which water flows continuously within and between different components of a landscape, such as rivers, lakes, wetlands, and groundwater systems. This connectivity plays a crucial role in the movement of water, nutrients, and pollutants within and between different parts of a watershed. Research in hydrological connectivity focuses on understanding the patterns, processes, and drivers that influence the movement and exchange of water and materials within hydrological systems. This research area is interdisciplinary, drawing on hydrology, ecology, soil science, and geomorphology to study how hydrological connectivity impacts ecosystem functioning, water quality, and biodiversity. Key research questions in hydrological connectivity include how land use and land cover changes affect connectivity, how climate change impacts hydrological connectivity, and how different landscape features influence the movement of water and nutrients. Understanding the complexity of hydrological connectivity is essential for effective water resources management, conservation planning, and ecosystem restoration efforts.