C1 noun ˈkiː.stəʊn ˈspiː.ʃiːz
keystone species
कीस्टोन प्रजाति
Meaning
A species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Example
Wolves are a keystone species that regulate prey populations.
भेड़िये एक कीस्टोन प्रजाति हैं जो शिकार जनसंख्या को नियंत्रित करते हैं।