Bob Davison describes the Endangered Species Act (ESA) as an effective tool for conserving biological diversity. What is his rationale for the value of focusing on individual species? Bob Davison describes the Endangered Species Act (ESA) as an effective tool for conserving biological diversity. What is his rationale for the value of focusing on individual species? A focus on individual species is cheaper than protecting entire ecosystems. Establishing public empathy for charismatic species provides an opportunity to educate people about lesser-known species. The public is not concerned about the economic costs of individual species recovery. The public tends to value intact ecosystems over particular plant and animal species.

The Endangered Species Act (ESA), 1973 provides a legislative backing to all such programs that are intended to conserve threatened and endangered plants and animals and their habitat.

The major objective was to maintain the integrity of the ecosystem by conserving its diversity. However, it would be difficult to carry out a mass preservation program for the entire ecosystem , hence it was considered necessary to first focus on all such species which may get extinct if not taken care of today

Hence, option A is correct