Broader adoption of keeping cats safe at home would have large benefits for cat welfare, human health, local wildlife and even the economy. So, should cat owners be required to keep their pets contained to their property?
Broader adoption of keeping cats safe at home would have large benefits for cat welfare, human health, local wildlife and even the economy. So, should cat owners be required to keep their pets contained to their property?
If house cats were actually some kind of living natural disaster, birds would have driven extinct millenia ago. To solely blame housecats for the mass extinction of songbirds that have existed beside them for hundreds to thousands of years without any appreciable population effect is insane.
Also while DDT has its own host of issues regarding it building up in the food chain, my concern here is the post-DDT ones.
No. I am saying it is not solved and that articles like this are skirting the real problem, which is probably pesticides and herbicides.
The decrease in bird populations of North America is new phenomenon and has only started some time since 1970. Notably, a lot of the songbirds affected are grassland species that dine on insects, seeds and berries, all of which are covered in or have ingested pesticides at farms. And is known, though not well documented, that insect populations are also plummeting but at a much steeper rate that songbirds.
We didn't know or study the effects of pesticides in various wild birds. And it varies wildly between species, with chickens not being a good general case. Also that birds are considerably more affected by pesticides than mammals.
Simple logic. Housecats do not have access to deep woods or exist in large populations outside of cities and suburbs in North America, yet the populations are declining there. This implies that they are not the cause of the decline.
LWhich points out that it is a multitude of factors and that grassland species(i.e. farmland) are the most affected, with wetland and forest species being less affected.
Further logic is that the decline is a relatively new phenomenon. But housecats killing birds is not new. Therefore something else is behind the decline, and simply keeping cats inside will not fix the issue.
That's a whole heap of words to say "maybe". On the other side of the world.
If you're happy being a selfish piece of shit, feel free to leave your cat roam. When Mittens gets hit by a car / contracts feline aids / otherwise meets a premature death, you can rest easy knowing that akshually it was probably pesticides.
I mean, he doesn't have to say it, your comment and the sources did a good job suggesting you only did a cursory read yourself.
The first paper states that birds are less sensitive to pyrethroid based pesticides, which makes your broad statements about pesticides sketchy at best.
Simple logic doesn't work in science specifically because it's simple and is subject to internal biases. You can't make an assumption and appeal to intuitive reasoning without some evidence to draw that link.
Your second paper doesn't back up your claim. It states that bird population loss is a multifaceted problem. Yes, pesticide use is called out as a factor, but so too is habitat loss through urbanisation and unregulated harvesting practices, which kind of answers your point 4.
These are all American sources. As a result, very little of this is applicable to the Australian biosphere beyond the most broad strokes since they dont take into account differences in local food webs, urban planning, environmental legislation etc.
TLDR, someone is using irrelevant sources and their dislike of pesticides to justify keeping their cats outside
"There's a possibility that some other factor may play a part in offsetting one of the negative impacts of free-range cats... therefore, all other positives of containing pets may be completely ignored"
- You, 2024
Lol, Person points out logical flaws in only blaming cats and suggests the root problem is known problematic pesticides and herbicides that are doing things like creating the conditions for "colony collapse disorder" in bees.
Wrong. Feral cats, plural, leftover from the construction workers that built the lighthouse and facilities on the island, are blamed for the extinction.