Study: Cats are destroying the environment

Back in 2013, a scientific manuscript was published in the academic journal Nature Communications implying that cats are responsible for killing multiple bird populations in the United States and around the world including birds belonging to endangered species. In the US, the study says, cats kill almost 4 billion native birds a year, an amount larger than buildings, towers, windows, poison, and cars. However, the cats they point to as the primary culprits are unowned cats, not necessarily felines that are owned.

Live Science interviewed Dr. Pete Marra who is an animal researcher at the Smithsonian Conservation Biology Institute and one of the scientists that participated in the study:

The major scourges for wildlife were not those free-ranging, owned-cats, but instead feral and un-owned cats that survive on the streets. Each of those kitties – and the team estimates between 30 million and 80 million of them live in the United States – kills between 23 and 46 birds a year, and between 129 and 338 small mammals, Marra said.

And, it seems, the small rodents taken by felines aren’t Norway rats or apartment vermin, but native rodent species such as meadow voles and chipmunks, he added.

The issue is that unowned cats are primarily responsible for killing bird species native to their areas. Marra suggests one solution would be to keep cats indoors so they do not disturb local ecosystems. Because of similar reasons outlined in a study conducted by a New Zealand environmentalist group, an environmentalist there proposed banning cat ownership. Thankfully, his proposal went nowhere.

While it makes sense for cats not to be released into the wild, cats not only add great value to people’s lives for companionship but also are a check on the amount of vermin among ecosystems like pigeons, rats and insects as well. It is studies like this that are the basis of ridiculous policy proposals, like the ban on cats the New Zealand environmentalist proposed. The above manuscript can be justified to not only ban cats but it would be used as an attack on the human ego because of the companionship cats provide for humans, along with the benefits of them being rodent and vermin exterminators.

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  1. Your cats are no more natural to any environment anywhere on earth than some insect that was created in some lab, that once released out into nature would destroy all of nature — JUST AS CATS DO. No different than any other destructive and defective product created by man, to be recalled, destroyed, and the use and possession of it made highly illegal with steep fines and incarceration for anyone found breaking this law. Cats need to be treated with the same harsh swiftness and laws that were applied to the use of DDT. Throwing your vermin cats everywhere is absolutely no better than putting DDT on everyone’s lands to indiscriminately kill any other living thing and they need to be treated as such. We now need to put the cap back on every last bottle labeled “CAT” and dispose of them as swiftly and environmentally safe as-is humanly possible.

    If your cats were only destroying invasive species (cats themselves being a noxious invasive species), then nobody would be complaining. But your vermin cats destroy anything that moves. Letting a cat roam free is absolutely no better and NO LESS CRIMINAL AND MORALLY REPREHENSIBLE than intentionally throwing rat-poison around on everyone’s property to kill any living thing. Your man-made vermin cats are now driving hundreds if not thousands of species of native animals to EXTINCTION across the whole planet. Have you no conscience nor morality left?

    Apparently gutting-alive and skinning-alive animals with everyone’s vermin cats, tortured to death just for your cats’ play-toys and YOUR entertainment, no other reason, is perfectly acceptable to you. Yeah, you’re all fine upstanding “animal-lovers” who respect all other lives around you and all other life on earth, aren’t you.

    Are you not even aware that Toxoplasma gondii oocysts when dried (and still viable) become aerosolized and drift on the wind? You can contract potentially-deadly T. gondii just from a cat-owner’s yard when it’s not been raining for a week and you inhale any air that passes over their land.

    Free-roaming cats and people improperly disposing of indoor-cats’ cat-litter are actually killing-off hundreds of rare marine-mammal species, even rare whales and your beloved manatees, (countless numbers of individual rare animals) on coastlines of all the world. A global ecological disaster worse than any oil-spill that has ever existed or could even be imagined. There are now harsh fines in areas of California for anyone found dumping cat-litter illegally — not in some environmentally-contained landfill. At least some of them “get it”.

    Birds are just a minor subset of all the thousands of native animal species (billions of individual animals) that criminally irresponsible cat-advocates are annihilating around the world with their man-made invasive species vermin cats.

    (copy remove all spaces from any obfuscated-for-posting URLs)

    Not only are these demented invasive-species house-cats-ONLY “animal lovers” now killing off all Big Cats in all wildlife reserves around the world: http : / / www . thenational . ae / news / uae-news / big-cat-owners-warned-to-keep-them-acres-away-from-feral-strays

    And for the ultimate example of absurdity and species-conservation irony, now making all moggie-licking residents of the UK (the inventors of that TNR insanity) the complete laughingstocks of the whole world, they’re already making their ONE AND ONLY NATIVE CAT SPECIES EXTINCT in the UK with their invasive species “moggies”: http : / / www . guardian . co . uk / environment / 2012 / sep / 16 / scottish-wildcat-extinction

    “A report, produced by the Scottish Wildcat Association, reviewed 2,000 records of camera trap recordings, eyewitness reports and road kills, and concluded there may be only about 40 wildcats left in Scotland in the wild today. ‘However you juggle the figures, it is hard to find anything positive,’ says Steve Piper, the association’s chairman. ‘The overwhelming evidence is that the wildcat is going to be extinct within months.'” … “However, it is not the loss of habitat that is causing the current cat crisis in the Cairngorms. It is the spread of the domestic cat.” … “‘Essentially the Highland wildcat is being eradicated by an alien invasive species: the domestic cat.'”

    That number is far below 35 left in the whole world today, and they keep insisting that their failed TNR ideology, that they’ve been practicing for over 60 YEARS (and managed to DOUBLE their vermin cat population by doing so), that TNR will still save their native Scottish Wildcats from extinction by their vermin invasive-species moggies. Insane doesn’t even begin to describe their Toxoplasma gondii brain-damage.

    As well as killing off all their inland River Otters in England (and elsewhere) with their cats’ parasites: http : / / www . wildlifeextra . com / go / news / otter-toxoplasmosis . html

    As well as cats’ parasites killing off all rare and endangered marine mammals on all coastlines around the world (worse than any oil-spill that has ever existed or could even be imagined):

    http : / / news . msn . com / science-technology / deadly-cat-feces-killing-thousands-of-marine-mammals
    http : / / www . environmentalhealthnews . org / ehs / news / hawaiian-monk-seals

    And these cat-licking “animal lover” psychopaths and sociopaths are also killing off all the Mountain Lions (Cougars, Puma, Endangered Florida Panther, etc.), and all other native cat species in North America: http : / / rapidcityjournal . com / sports / local / feral-cats-pose-threat-to-birds-lions / article_8ec451c9-4b03-55a3-baa7-71ac577905cb . html

    But now these cat-lickers are even killing off rare whales and causing massive birth-defects in the indigenous Inuit people who depend on seal-meat for their very survival. Seals that were infected (and are also dying-off) from these cat-lickers’ cats’ parasites.

    Cat parasite found in western Arctic Beluga deemed infectious http : / / news . ubc . ca / 2014 / 02 / 13 / bigthaw /

    Let’s thank these psychotic bible-home-schooled cat-lickers for all the fine work they do for being such fantastic “animal lovers”, shall we? THEY JUST LOVE CATS SO MUCH! So caring! So thoughtful! So intelligent! So FULL of love for living things! So much so that they will even sacrifice whole races of humans to death-by-birth-defect to prove how much they love their cats.

    I’d love to thank them all, each with a gift of a solitary-confinement prison-cell — FOR LIFE. Better yet, for their VAST ecological crimes and sins against all of nature and all of humanity, hanged-until-dead would be a far more fitting “gift” for them AND the whole planet. That used to be the punishment for engaging in bio-warfare against the human population and all other animal life in any country. I say bring it back — special, just for them.


    • If you are an advocate of nature, why do you call for killing the stray cat population? Oh wait, yes, I get it. Because it is the result of human usage of cats and that it affects other species of animals then using cats as pets overall must end, huh? If that’s not what you advocating that is the only way to stop the spread of stray cats.

      In some ways it might make sense to exterminate stray cats but the result is the growth of the population of other vermin like rats, mice, roaches, and other insects you may find horrid.


  2. When/If you find out that your elected-officials are really just spineless, bambi-cartoon-educated, cat-licking imbeciles (who deeply swallow the unsubstantiated claims of mentally-deficient, manipulative, and LYING cat-hoarders), those who are in favor of destroying everyone’s property and lives, spreading 3dozen+ deadly diseases that cats spread to humans today, killing off all your NATIVE cat-species with feline diseases, and rare marine mammals (seals, dolphins, whales, even manatee) and inland otters from cats Toxoplasma gondii parasite, and torturing to death all our native wildlife with their vermin invasive species cats; then if you live next-door to a TNR cat-hoarder here’s some further help for you to PERMANENTLY solve the problem that these demented and astoundingly disrespectful TNR cat-hoarders cause before they ruin your lives even further — until the next election.

    Just Google for this complete string (include the quotation marks):

    feral cats “Licensing and laws do nothing to curb the problem.” “Where cats have already learned to evade all trapping methods”

    I have posted that valuable (and lengthy) information on hundreds, if not thousands, of sites that bring-up the issue of free-roaming vermin cats.

    Therein you’ll find every effective method that you can employ to finally and permanently solve this invasive-species vermin cat problem completely in under 2 seasons of anyone’s time — no matter what laws govern your lives, no matter where you live, no matter how many cats infest your lands. And at costs affordable to any individual, any community, any nation. It worked 100% where I live — and it only cost me 1/3rd-cent PER CAT for hundreds of disease-infested vermin cats infesting my lands. Total cost less than the price of two starbux coffees.

    Note: DO NOT just dump them elsewhere. That is just as irresponsible, inconsiderate, immature, and ILLEGAL as those that made those vermin garbage-cats into your problem. Repelling stray cats or dumping them elsewhere just makes them into someone else’s problem or our valuable native wildlife’s problem. Be an adult for once in your lives and solve it permanently for everyone. I for one know that NO CAT that touches even one paw to my lands will ever become a problem for any other living thing on earth ever again. All my neighbors (and wildlife) thanked me greatly for this. I have effectively turned my lands into a 100%-fatal cat-trap for any cat within miles around. The eradication of hundreds of these vermin in the whole area (collared or not, for you must destroy all collared ones too, they are the very source of every last vermin feral cat) was so complete and effective that I’ve not seen nor heard even one cat in SEVEN YEARS now. So much for that deceptive, manipulative, and mythical “vacuum effect” LIE of theirs, eh?

    Enjoy your 100% vermin-cat-free lives once again!


    • I’m a bit late responding but looking back at the comments, I could not help not the irony of a “Nature Advocate” not just due to her/his being triggered by this post, but also that he/she has no respect for nature. If nature should take it’s course then you shouldn’t be doing anything to eradicate cats. He/she claims wildlife thanked her, but I have yet to have any forms of nature speak to me. I guess someone has to be an environmentalist to be in the know.