A meta-study published in Science concludes that two-thirds of conservations efforts are successful in improving biodiversity. These efforts return $100 in ecological services for every dollar invested. The meta-study covered 186 studies involving 665 trials. Controlling invasive species, restoring habitat, breeding programs, and creating protected areas are among the strategies found to have a positive impact on wild populations. Controlling invasive on islands is particularly effective. For example two Florida islands managed for predator control, resulted in immediate improvement of loggerhead turtle and least tern nesting success. The meta-study also found a correlation between effectiveness and time as conservation techniques improve. [photo credit: B. Neptune]
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| Rangers in Virunga NP, DRC |
More than half the world's GDP, almost $44 trillion, is dependent on nature. Some estimates are that a global conservation program would cost between $178 and $524 billions. In comparison, the amount spent on subsidizing fossil fuels in 2022 hit $7 trillion. The IUCN estimates that 44,000 species are documented to be at risk of extinction. Amphibians are at the top of the list with 41%. Only six years remain to reach global biodiversity targets, increasing the need for effective action including the control of unsustainable production and consumption that drive biodiversity loss.