The global growth of hydroelectric dams has had a negative impact on the habitats of tigers and jaguars. According to researchers, dam development, mainly in Asia, has harmed more than one-fifth of the world’s remaining tigers. The dams are thought to have caused tiger extinction in several local woodland areas. Dams on their ranges are predicted to treble, posing a huge threat to jaguars.

Tigers have not fared well in the modern world. The animals have vanished from almost 90% of their original range in the last century, despite their iconic and terrifying reputation. While their numbers have increased in recent years, the International Union for Conservation of Nature (IUCN) still lists them as an endangered species, with a population of roughly 3,500. Jaguars have a similar story. The distribution of these slender predators, which stretch from the southwest of the United States to Argentina, has been cut in half. A recent study shows that global efforts to create hydropower for energy have had a negative influence on these species’ ecosystems. Over a thousand current dams cross the territories of tigers and jaguars, according to the study.

They methodically calculated the number of forest areas affected by the dams and discovered that almost 13,000 square kilometers of tiger habitat had been flooded to create reservoirs for the dams. This is believed to have had a major impact on tiger populations. As a result of the development of a massive reservoir smack in the center of the landscape, that forest was broken into smaller parts, and those tigers were often unable to survive in that fragmented forest landscape.