Why are pond leeches affective to the ecosystem?

Pond leeches play a crucial role in their ecosystems by serving as both predators and prey. As predators, they help control populations of small invertebrates, contributing to the balance of aquatic food webs. Additionally, as a food source for various fish and birds, they support higher trophic levels. Their presence also aids in nutrient cycling and sediment turnover, promoting overall ecosystem health.