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Trial wipes out over 80% of Australian disease-spreading mosquito

csiro.au

191–200 of 285 posts

Re: Trial wipes out over 80% of Australian disease-spreading mosquito

#191
post #176

IIRC this is an Australian initiative: the basic work on the application of Walbachia to dengue, the formation of the world mosquito program, it's an initiative grounded in Australian science. yes, you will find "we did it" in China and Brazil and Vietnam and other places: The roots of this work go back to 2011 and before, at Monash University: https://www.monash.edu/industry/success-stories/dengue http://www.elimina…

The article says it's "an international partnership between CSIRO, Verily and James Cook University".

Re: Trial wipes out over 80% of Australian disease-spreading mosquito

#193
post #169
post #142

Earlier quoted context omitted.

I never said this was new. What concerns me is it being done in the modern era. And not just in the modern era, but backed up by scientists too, which lends it additional credibility. In general, people in this era trust science more than they trust politicians. If a politician tells them something is a good idea, they will distrust that politician if it goes against their gut instinct. But if a scientist tells them…

Eradicating an invasive species that we (inadvertently) introduced in the first place seems more similar to me to wolf rewilding/reintroduction programs than the opposite. We're trying to unwind an earlier intervention.

Those mosquitoes aren't invasive anywhere. Eradicating them means killing them wherever they're native as well, which is definitely what many people in this discussion are proposing.

Culling invasive species wherever they are invasive is something I support. But many people want to go a lot further than that.

Re: Trial wipes out over 80% of Australian disease-spreading mosquito

#194
post #185
post #4

> Aedes, Anopheles and Culex are found almost all over the world and are responsible for around 17 per cent of infectious disease transmissions globally." If I understand that correctly, that is a massive number. I really like what these sterilization trials are producing. In my mind, it’s a lot safer than spraying chemicals across cities.

It gets worse. As I posted elsewhere in the comments, an article in Nature[1] suggests that up to half of humans ever to live have died as a result of mosquito-borne disease. In light of those numbers I feel we are ethically clear to take drastic action. We don't have to kill all mosquitoes as fewer than 1% of mosquito species feed on humans. We have several tools which will target the specific species which impact u…

What are the negative outcomes? Presumably we leave a niche for other mosquito or insect species to prosper in, which species will they be. Which species predate the mosquitoes we're eliminating, or how do those particular species adapt the environment and so impact the local eco-system?

If we've not found any negatives then I imagine we've not tried very hard.

Australia is kinda synonymous with species-wide population control and not in a good way; hopefully this will change that?

Re: Trial wipes out over 80% of Australian disease-spreading mosquito

#195
post #178
post #151

Earlier quoted context omitted.

> "Its important to differentiate b/w the plans of a politician and the plans of research scientists who have done actual work in this area." Not really, because the general public won't take such care with the differentiating. The more scientists deliberately exterminate or cull animals, the more the public will grow accustomed to the idea of humanity taking such an active violent role in the environment. And the mo…

If you're going to weigh the social factors in wiping out the 20-something species of mosquitoes which feed on humans (out of > 3000), I think you need to factor in the possibility that malaria (and thus mosquitos) may be responsible for HALF of human deaths in our history. Half. That's an outrageous number, but Nature suggests it might be true: https://www.nature.com/news/2002/021003/full/news021001-6.ht... At what…

Imagine if half of all the humans who have died didn't.

How screwed would we all be right now.

Of course it doesn't work quite like that, but still. We might save enough humans to destroy the planet faster than we can fix it ... now solve that one without doing something "evil"!

Re: Trial wipes out over 80% of Australian disease-spreading mosquito

#196
post #53

Earlier quoted context omitted.

I remember this was the big debate several years ago when the idea was first promoted. However, Google and some non-profits appear to be moving ahead with the blessing of local governments. I'm assuming that with the relatively short lifespan of mosquitos and birds, we'll be able to see if there's an unintended chain reaction in these local ecosystems in a few years time.

It's because the specific specie they target isn't even native to that place (it was introduced by humans), and also represent a small fraction of all musquitos in the area.

So, we messed with the balance before and it went badly, ... that's not logically a sufficient reason to mess with the balance in the eco-system again expecting unmitigated benefits.

When one gets stabbed withdrawing the knife (which follows the same logic) can kill you.

As for small fractions, ecological systems are usually pretty chaotic (in the mathematical sense of small perturbations being able to produce massive changes).

Re: Trial wipes out over 80% of Australian disease-spreading mosquito

#197

According to the WHO ( http://www.who.int/en/news-room/fact-sheets/detail/malaria ) * Malaria killed 445,000 people in 2016. * Of those, 285,000 were children under the age of 5. * There were 216 million cases of malaria in 2016. That is a large city's worth of children dying every year, and a large country's population having severely reduced productivity. And that is just one mosquito born illness. The guaranteed h…

Unclean drinking water supposedly kills 500,000 a year (eg https://www.news24.com/Green/News/two-billion-people-drinkin...).

We could probably fix that without need for any new technology and with only minimal changes to the eco-system. I wonder which costs more.

[Yes, I know it doesn't work like that and that these are not mutually exclusive.]

Re: Trial wipes out over 80% of Australian disease-spreading mosquito

#198
post #157
post #106

Earlier quoted context omitted.

It's more a reflection on the fact that our governments have successively cut CSIRO's funding again and again despite their demonstrated return on investment and notable achievements.

Indeed. The most recent governments' hostility toward scientific research has been hugely damaging to the research community in Australia. The CSIRO were once an amazing asset to the world, now with their funding slashed dramatically there are many brilliant teams without the resources to develop their ideas. So disappointing and frustrating to watch. :-(

They are and always have been a bunch of anti-intellectual religious zealots. I'm not sure what anyone was expecting. There's still too many people drinking the kool-aid to say it now, but I'd be very surprised if by 2050, Tony Abbott isn't considered the worst PM in Australian history.

Re: Trial wipes out over 80% of Australian disease-spreading mosquito

#199
post #10

Earlier quoted context omitted.

We don't have to wipe out all mosquitos in one shot. There are many different species, not all of which transmit the deadly diseases of concern. We can start with less populous species that share their ecological niche with other species that can replace them in the food chain - observe the impact of removing that one species then move on to others as warranted by the results. Answer #2: It's worth the risk. Kill the…

> It's worth the risk Not really. Mosquitoes, both adults and larvae, serve as an important food source for many animals that humans eventually depend on for food. Many types of juvenile fish eat their larvae, for example, juvenile fish that eventually grow up and become a major source of protein for some groups of people.

>a major source of protein for some groups of people. //

But not for Westerners in temperate climes, so, y'know, who cares ... [that's deeply black sarcasm in case it's not obvious].

Re: Trial wipes out over 80% of Australian disease-spreading mosquito

#200
post #134

Earlier quoted context omitted.

> "but it's hardly an "emotional outburst" to want to prevent swimmers from being eaten" Considering... > "Since 2000 there have been 15 fatal shark attacks along the West Australian coast.[9]" Yes, it's an emotional outburst. Anybody who goes in the water should know the risks. If that's the problem, put up more signs warning people. Very few people are getting killed by sharks; the shark culls are totally unjustifi…

You're comparing 15 human lives against 50 sharks killed by this program? Wow. They're just sharks. The slavery boats from southeast Asia kill many more sharks every single day. The sharks they kill aren't menacing a beach. Many of the sharks they don't kill directly. They just chop off all the fins and then dump the shark back in the ocean...

Many sharks, plus bycatch, for no rational reason at all. Australian politicians vilify the animals and demand even more be killed. It's wholly irrational, as is your characterization of the sharks "menacing" the beach simply by living in their natural environment. Sharks aren't menacing the beach, the Australian government is menacing the sharks.

> "They're just sharks."

It is this sort of shitty attitude that will only become more prevalent when the eradication of animal species is further normalized.

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