Frisky is a killer. At least in terms of birds, rodents and other small creatures hunted by cats. A 2013 study by Scott Loss of the Smithsonian Institute of Conservation Biology found that domestic cats are released from the home each year, both wildly and by their owners. In the United States alone, 1.3-3.7 billion birds and 6.3-22.3 billion mammals are killed..
It would be naive to think that their victims are just common species, such as rats and mice. Most likely, the first domesticated cats in North Africa are invasive species in almost all environments. AND have a strong negative impact on biodiversity. Cats are especially destructive to the islands. Many species living in relative isolation have not responded to the presence of predators and are very easy prey for them.
Studies have shown that they can kill 63 species, including 40 birds, 21 mammals and 2 reptiles. Only rodents, especially rats, have the most killed species of conscience: 75 species of birds, mammals, and reptiles that have been artistically depleted. Another 420 species are now endangered by large-scale cat predation, as well as other consequences of the presence of cats in their environment.
A small, migratory parrot living in Australia, it has been considered an endangered species for 15 years. In 2014, only 14 of them lived in the wild. Researchers are trying to save the species by raising birds in indoor poultry houses. They are moderately successful – the number of captives is slightly less than 300. But even if they are in captivity, they are not safe. In 2013, a cat entered one of the poultry houses. Almost all the parrots living there died. However, most of their deaths were not caused by cat’s claws: the birds panicked to escape, crashed into walls at high speed, and received fatal head injuries.
The striped squirrel antivor is an Australian marsupial that feeds on ants and termites. In the mid-20th century, this was quite common in southern Australia, however miniature ant eater There was no chance against the predators that the Europeans brought to the continent, mainly foxes and cats. By the end of the 20th century, there were less than a thousand of them left.
Like most New Zealand reptiles, this 30 cm long lizard has been almost completely destroyed by cats and rats. Thanks to the efforts of naturalists, it was possible to stop its destruction, but still is in a very dangerous situation. The development of agriculture and mining deprived him of most of his preferred habitat, and the attacks of predators brought on by humans, especially cats, were a deadly threat to him. That is a fact they multiply very slowly and mature for a long time. This means that every hair of a cat is an irreparable loss.
Another New Zealand species that is almost extinct by cats is the green, awkward parrot. Efforts to save this species have been going on for decades, but the birds are breeding very slowly. There are so few of them Scientists have identified, ringed and named all 201 live birds. Free, fat birds were the favorite hunts of European cats. Today, all cockroaches live on small islands where all predators are killed.
The unusual goose is the official bird of the Hawaiian Islands. In the 1960s, he was on the verge of extinction, mainly due to cat attacks. At that time, only 30 of them remained. Since then, efforts to save them have resulted in an increase in the number of birds, but today they are under threat again and again, cats are to blame. We are not talking about hunting, but about the T. gondii parasite, which it spreads and causes deadly diseases in birds.
At first glance, the mountain cat is similar to the domestic cat, but genetically different from it and has a number of features that make it easier to survive in difficult conditions, for example hairy tail or blue eyes. The danger for him is not hunting, but cat lovers. Tibetan cats can lose genetic diversity by breeding with domestic cats.
A cat weighing a few kilograms is dangerous even for large predators. Since 2008, the population of Florida cougars has been threatened by the rapidly spreading cougars cat leukemia epidemic. At least 5 of the 200 cougars living in the wild have died of the disease. The disease came almost to larger predators from smaller domestic relatives.