The study examines how biodiversity loss affects city finances and creates opportunities for conservation investors[1]. The researchers focused on the case of the sudden decline of bats that provide pest control services in agriculture[1]. They found that the loss of bat populations reduces agricultural land tax revenue in rural counties and increases bond yields by 11.5 basis points, a 27 percent increase[1]. Research shows that if conservation investors buy $1 million worth of bonds and the bat population recovers, the expected spread reduction will increase bond prices by $14,124[1]. This financial return could potentially cover the cost of nature conservation without the need for new government measures[1]. The study thus demonstrates the mechanism of how private investors can contribute to the goals of nature protection through financial instruments[1].