![]() But even 30,000 populations are only a small fraction of the world’s wildlife. This captures everything from frogs to elephant species, rhinos to owls, from every continent on Earth. Its 2022 report included figures across 30,000 wildlife populations. The Living Planet Index aggregates observations on changes in population size, and similar metrics, across tens of thousands of animal populations.The underlying data included in the Living Planet Index comes from a combination of published scientific articles, online databases, and government reports.This presents the latest high-quality data we have on animal populations, but also increases in global coverage with every new release. Every two years, a new Living Planet Index report is published. ![]() ![]() The Living Planet Project – which produces the Living Planet Index – is led by the Zoological Society of London (ZSL) and World Wildlife Fund (WWF).And, in fact, many populations have been increasing in size. The decline for some populations is much larger for some, it’s much smaller. Since 1970, then, the size of animal populations for which data is available have declined by 69%, on average. Number or percentage of species or populations that are declining.Number of populations or individuals that have been lost.What it reports is the average decline in animal population sizes since 1970. Biodiversity data is much more limited in the tropics, for example. It’s important to note that this data is not globally representative: some regions have much more data available than others. It distills this change into a single number. The Living Planet Index tries to summarize the average change in population size of tens of thousands of studied animal populations. One of the most widely-quoted, but misunderstood, metrics on biodiversity is the Living Planet Index. On average, there has been a large decline across tens of thousands of wildlife populations since 1970 ![]()
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