What groups of endangered species was more important to protect?

The protection of endangered species groups that play critical roles in their ecosystems, such as keystone species, is particularly important. Keystone species, like certain predators or pollinators, help maintain the structure and health of their ecosystems. Additionally, protecting species with low population numbers, unique genetic traits, or those that are indicators of environmental health can also be crucial for biodiversity conservation. Prioritizing these groups can lead to broader ecological benefits and the preservation of overall ecosystem resilience.