Domestic Cats: A Global Threat to Biodiversity.

The Ecological Impact of Cats

According to TSN.ua: Though beloved as pets, domestic cats have emerged as a major invasive predator worldwide. Research by American scientists reveals that these predators consume over 2,084 different animal species, including a significant number that are endangered or threatened. This makes cats one of the planet's most successful and widespread invasive hunters.

Their prey includes a wide range of animals, specifically:

• 9% of all known bird species,
• 6% of mammals,
• and 4% of reptiles.

Alarmingly, more than 16% of the species hunted by cats have a conservation status, meaning they are vulnerable or endangered. This predation has severe consequences, with cats linked to 26% of all modern bird, mammal, and reptile extinctions globally. This issue is particularly acute on islands and in regions with unique, isolated wildlife.

The Scale of the Problem

The sheer numbers are staggering. In Great Britain, domestic cats kill an estimated 160 to 270 million animals annually. The scale is even greater in Australia, where cats are responsible for the deaths of up to 650 million reptiles each year. In New Zealand, feral domestic cats were implicated in the extinction of at least six endemic bird species during the 1970s. These figures highlight that despite their popularity as companions, cats exert a profoundly negative impact on ecosystems and biodiversity in many countries.

These research findings underscore the critical need to recognize the environmental footprint of our pets. Increasing awareness among cat owners about the ecological consequences of their pets' behavior could lead to more responsible ownership and reduced pressure on vulnerable species. Acknowledging this data is a vital first step in developing new, effective strategies for biodiversity conservation and protecting fragile ecosystems around the world.