1. plural of ecology; the study of organisms and their relationships with each other and their environment
Usage: academic/scientific context
2. plural of ecology; the set of relationships between organisms and their physical surroundings in a particular area or system
Usage: can refer to multiple distinct ecological systems or communities

Examples

• The ecologies of tropical rainforests are incredibly diverse and complex.
• Scientists study different ecologies to understand how climate change affects wildlife.
• Urban ecologies present unique challenges for native plant and animal species.
• The course examines ecologies across multiple continents and climate zones.
• Protecting various ecologies requires international cooperation and policy changes.
• Marine ecologies support billions of organisms in the world's oceans.