Wiktionary
ecological service
n. Any (l/en: beneficial) (l/en: natural) (l/en: process) arising from healthy (l/en ecosystem ecosystems), such as (l/en: purification) of water and air, (l/en: pollination) of plants and (l/en: decomposition) of waste.
Usage examples of "ecological service".
It's a control reserve, a standard of comparison for Ecological Service to use.