Is the Insect Apocalypse Upon Us?

https://www.theatlantic.com/science/archive/2019/02/insect-apocalypse-really-upon-us/583018/

by sergeant3 • 7 years ago

115 93 7 years ago

spking• 7 years ago

[...]it’s hard to take the widely quoted numbers from Sánchez-Bayo and Wyckhuys’s review as gospel.

They say that 41 percent of insect species are declining and that global numbers are falling by 2.5 percent a year, but “they’re trying to quantify things that we really can’t quantify at this point,” says Michelle Trautwein from the California Academy of Sciences.

“I understand the desire to put numbers to these things to facilitate the conversation, but I would say all of those are built on mountains of unknown facts.”

cowmix• 7 years ago

There's been a lot of these stories in the past year and, like all trendy reporting, I'm not sure how serious I should take them in whole. However, I can say this: I've been driving between Phoenix and Tucson consistently for 30+ years. For those of you who don't know, it is a 90+ mile ride which is almost all at top highway speed. I've noticed in the past year or two my windshield is much, much cleaner post drive whereas years ago I would almost be forced to clean my car after each trip.

Unscientific, but unsettling nonetheless.

bjelkeman-again• 7 years ago

When I grew up we had grasshoppers in every lawn, always and everywhere. These days I hardly see or hear any.

brandonmenc• 7 years ago

Also anecdotal, but:

My parents would talk all the time about catching lightning bugs as kids. Growing up in the 80s and 90s, I didn't see a single one. Now, the back yard is absolutely full of them (again, apparently.)

mrhappyunhappy2• 7 years ago

I’m in Japan and we have a ton of grasshoppers. I can’t step in the grass near my garden without seeing some jumping around. Mantis are tricky, really hard to see them but when you are so close they look at you like you don’t belong there. Creepy.

davemp• 7 years ago

I've noticed in the past year or two my windshield is much, much cleaner post drive whereas years ago I would almost be forced to clean my car after each trip.

I've seen mentions this phenomena floating around. I wonder if this could be attributed to a change in the aerodynamics of modern windshields.

jacobush2• 7 years ago

No. You could see them before hitting the windshield. Unless modern windshields have a Star Trek deflector shield, that's not it.

NeedMoreTea4• 7 years ago

Only an anecdote, but I'm going to say no.

Mainly as I have strongly experienced the same phenomena motorcycling. My head and helmet are not changed aerodynamically. A naked bike contributes little. Yet headlight and visor catch far fewer than 30 years ago. I don't expect to break the journey to clear it like I used to.

The windscreen on the car may very well catch less, but in that case it also seems like there are a lot less to catch.

DanTheManPR2• 7 years ago

Anecdotally: my uncle has been driving an '88 Oldsmobile Cutlass for the last 30 years. I remember riding in that car as a kid, and him giving me an uncle-y lecture about how when your windshield is caked with bugs, you don't want to run the wipers, because it will just smear them all around and make it hard to see. He then demonstrated that to me, something I remember vividly (we stopped at a gas station shortly after to wipe them off with a squeegee). Last summer, driving on that same road by the lake, same time in the early evening, I commented on some of the bugpocalypse stories I had read. He hadn't really thought about it before, but his Cutlass' windshield was dramatically cleaner than the night I remember in the early 90's.

jacobush2• 7 years ago

As a kid, we'd have to stop on our summer car trips and scrape bugs of the windshield. Nowadays... never happens. I get frightened by the (very) occasional bug hitting the windscreen.

orangecarrot• 7 years ago

Odd that you mention this, I recently moved to Iowa and have noticed that I hardly have to clean my windshield from the bugs. I realize this is anecdotal, but I do remember a time as a kid where like you I had to clean the windshield often.

mrhappyunhappy2• 7 years ago

The same in Michigan. I remember as a kid we took long trips and our car was absolutely covered with bugs. As an adult I took the same trips and barely any splattered bugs.

beauzero• 7 years ago

I drive two hours from West Georgia to Montgomery, AL every other day. Zero...zero bugs on the windshield. Also we live out in the country and in the last 3 years I have seen exactly one firefly. 20 years ago in the suburbs (closer into Atlanta) they were uncountable there were so many. Anecdotal but still a very weird feeling at night. Fire ants on the other hand seem to be doing just fine.

bamboozled• 7 years ago

Could killing tens of thousands of bugs (or more) per vehicle be contributing to the decline in numbers at all ? There are a crazy amount of bugs on earth I get it but still, this surely has to have an impact.

People talk about having their car totally caked in bugs at one time etc, given other environmental stressors it’s not going to help if healty populations are exterminated en masse.

chopin• 7 years ago

One should however take into account that the aerodynamics of cars changed considerably the past 20 years possibly leading to less by-catch.

saiya-jin• 7 years ago

probably true to some extent, but then driving experience of some older car (many of which still work perfectly fine) should cover this possibility

Tepix• 7 years ago

That doesn't really explain why even the license plates remain clean, does it?

Izkata• 7 years ago

I can't help but wonder if there's some evolutionary adaptation going on: the bugs that avoided cars all survived, so their offspring are less likey to go near cars?

freeflight• 7 years ago

Or maybe the massive increase in car usage, globally, has simply eradicated large percentages of flying insect populations?

I mean, think about it, for decades we've been building highways, which also have become increasingly more busy with car traffic. So not only did we increase coverage of these massive "fly swatters", we also keep increasing the rate at which they swat insects.

Doesn't need to be the only factor, but coupled with the massive use of insecticides, and the loss of natural environments, it might as well be a very contributing factor.

pault• 7 years ago

This is a point that has been mentioned in many of the articles on this subject lately, and one of the research programs I read about is measuring exactly this. They took a bunch of volunteers and counted the number of bugs on their windshields after driving a certain distance to estimate the flying insect population in that area. And yes, there is a huge reduction in population. The more concerning statistic is that insect populations are also plummeting in remote rain forests with no pesticide use.

dbingham• 7 years ago

The conclusion of the article is that even though we don't have conclusive research, the early signs are worrying and the risks are far too high to wait for better data to act.

This is the problem with things like climate change and ecological collapse. Science is extremely slow to measure and understand the phenomena. But the disasters can move far faster than the science, wrecking havoc as they go. Scientists are naturally cautious and skeptical and so will dismiss the kind of claims it takes to move people until those claims are overwhelmingly supported.

By the time scientists have enough data to comfortably support the claims, it's far too late to act on them.

ajuc• 7 years ago

We know about climate change since decades. It's not the fault of science that politicians and big business lie about it to the public.

We've had several successes in similar matters (CFC ban and ozone layer, leaded fuel ban and crime levels), so it's clear the problems aren't impossible to solve.

We should be focusing on the place where the problems appear - on politicians and companies lobbying to ignore the warning signs. Science does its job.

beobab• 7 years ago

Agreed. There are horrendous arguments on both sides (as well as convincing ones), which makes it difficult for the average joe to come to a conclusion about who is right.

Science needs better marketing to be able to sell its conclusions in a more effective manner.

Note: I'm on the scientist's side, in case it was ambiguous.

de_Selby• 7 years ago

It's not the scientists fault. They are highlighting that there is an issue and the consequences are potentially catastrophic. Scientists always uses measured language in papers, but in the example of global warming Scientists have effectively been screaming about it for decades in a public outreach context, politicians have not listened though.

darepublic• 7 years ago

Not just politicians, regular people have not heeded the warnings.

PavlovsCat• 7 years ago

Yeah, and even now, calling for more research doesn't mean "not doing anything until we know more". We need to start moving and send out more scouts, we can do both, one doesn't have to take away from the other.

happy_man2• 7 years ago

I don't think the problem is that the scientists are not heard, but that the reiki-practicioners-heavy-drug-users-no-responsabilty-whatsoever-metaphysical crowd are much louder, effectibily diminishing the seriousness of the scientists' warnings

AnIdiotOnTheNet• 7 years ago

It is easy to put this on politicians, but you must remember that politicians are largely a reflection of the people they represent. We are all to blame for finding the truth too inconvenient to handle.

hannob• 7 years ago

The conclusion of the article is that even though we don't have conclusive research, the early signs are worrying and the risks are far too high to wait for better data to act. > This is the problem with things like climate change and ecological collapse.

This is absolutely not the problem with climate change. The problem is some people decided to believe a comforting fairytale instead of the scientific facts.

Simon_says• 7 years ago

A rare case in the wild of Betteridge's Law failing us.

pwaivers• 7 years ago

Betteridge's law of headlines is an adage that states: "Any headline that ends in a question mark can be answered by the word no."

The article says that the "insect apocalypse" is not going to happen, despite pretty strong evidence of insect decline. So Betteridge's Law does hold here.

makerofspoons• 7 years ago

35% of our food is pollinated by insects: https://www.nrcs.usda.gov/wps/portal/nrcs/main/national/plan...

We are facing a food crunch in the near future- we will number 9-11 billion before population declines begin to set in at the same time climate change will be desertifying the worlds breadbasket, we are running out of fresh water, we are running out of top soil, and insect declines will threaten the angiosperms we eat. It is not clear how insect populations will respond to the 3-5 degrees of warming expected by the end of this century (based on RCP 8.5 and RCP 6.0 from the latest IPCC report).

Mid-century is shaping up to be one of the most important and tragic periods in human civilization, if it is to survive it. We should keep in mind we are always nine missed meals from anarchy.

happy_man2• 7 years ago

Well, this post covers my maximum daily dose of alarmism. Thanks

Diederich• 7 years ago

I feel you. I've been well along the climate change alarmism spectrum for many years now. It has often been draining. Sometimes, highly motivating.

As is sometimes said, the battle is in the mind.

DanTheManPR2• 7 years ago

What's the alarmist version of “Just because you're paranoid doesn't mean they aren't after you.”?

galangalalgol• 7 years ago

https://www.hortmag.com/plants/fruits-veggies/vegetable-crop...

Seems to indicate most of our food would be fine without pollinators. We would lose tree fruits, berries (but not grapes), and melons. Nightshades would become more work, and everything else is pollinator optional.

I have heard that orange groves have humans pollinating them in many cases, so we might not lose all tree fruits either.

teshier-A2• 7 years ago

We all agree on the terrible consequences of >2 degrees of warming globally. But knowing that we will almost surely develop technology that can prevent it for as little as $1 billion to $10 billion per year [1], I can't help but think that situations like you and other alarmists describe will never be true. However experimental, however risky, if this cheap solution exists then surely some countries at some point will use it before it is too late for them.

I don't think we will ever see 5 degrees of warming if sun-reflecting particles work, and chances are they do.

[1] https://www.nature.com/articles/d41586-018-07533-4

graeme2• 7 years ago

But the oceans will turn acid with CO2, and the air we breathe will be different, which some research indicates has lowered nutrients in crops.

The ocean is the easiest effect to prove, but then there will be other unknowns of altering the air to have more CO2 and a dimmed sun.

You’re awfully cavlier about the one inhabitable planet we have.

pasta2• 7 years ago

"the total mass of local flying insects had fallen by 80 percent in three decades"

Ok, but what if it is now back at the 'norm' and there were just too many insects all those times?

Do we know what the norm is?

I must agree that the quick loss of so many insects does not sound normal. But we also know that insects can swarm very quickly and become a pest in good conditions.

With climate change we have a lot of data from even thousands of years ago, so we have some feeling about the 'norm'.

Does a norm for the total mass of flying insects exist?

c0nfused2• 7 years ago

I agree, what we should do is apply even greater amounts of pesticides to certain countries while letting others try to fight ecological collapse. then in a hundred years we can see who is right and who is dead.

pasta2• 7 years ago

I don't like your comment.

I'm not saying we should not act. I'm asking if we know what we are up against.

empath75• 7 years ago

Over what time scale? Over the history of the planet, the norm is probably close to zero as they only evolved 400 million years ago.

I don't think we particularly care about that, though. What we care about is what the death of insects means in terms of the ability of plants to continue to propagate since we like need to eat them to survive.

jillesvangurp2• 7 years ago

There are a few practices in modern agriculture that are probably not helping. Farmers use pesticides to kill everything but the crop they are interested in. Then they use pesticides to get rid of insects and other parasites, and finally they use herbicides so they can trigger plants to start dying just in time for harvest rather than waiting this to happen organically.

That stuff is nasty. It's actually intended to be nasty. And the side effect is that it kills a lot of animals and plants indiscriminately. Also, this stuff is possibly not that great for human consumption either. There seems to be a lot of lobbying around this topic and a lot of debate about what is considered OK here. But I'd say most people would probably opt out of having any of this stuff in their food, just on the off chance it might decrease their chances of getting some cancer, genetic defects in their offspring, etc.

Modern organic farming can actually get great yields by more clever use of soil and land and does not need pesticides, herbicides, or insecticides. There is a lot of high tech stuff facilitating this including drones, water management, use of herds of animals to manage soil (planned grazing), etc. And then there is hydroponic farming as well. Progress in this space is very rapid.

Phasing these out and restricting the use of poison in farming would probably be a good thing. This cannot be done over night but there are plenty of farms that have switched to being fully organic while increasing yields and profits. It can be done and it requires doing things differently. Now is a good time to start doing much more of that. And we might actually restore some arid lands to healthy condition in the process which would not hurt our planet either.

jki2754• 7 years ago

I'd love to see a citation on this -- my impression (grew up in farm country) was that organic farming was significantly less yield, higher expense, and totally impossible to actually run a profitable farm on without raising prices immensely. People do it, but the market for food that costs 3x is relatively small -- most moderate to lower income simply can't afford it.

Maybe things have changed, but I suspect if they have everybody would have switched already. Obviously getting rid of poisons is a great target, but I've never heard from anyone in the business that it's even a possibility.

circlefavshape2• 7 years ago

Organic products are often more expensive, but not necessarily 3x more expensive, or anywhere near it

Carrots for sale in Ireland in one of the most popular supermarkets - https://www.tesco.ie/groceries/product/search/default.aspx?s... ... organic ones are more or less the same price as non-organic

NeedMoreTea4• 7 years ago

Many years since I had relatives in agriculture and horticulture, so I may be embarrasingly outdated.

Monoculture tends to encourage everything we don't want. Needing fertilisers or rotation, pesticides, disease has many acres to spread easily through etc.

There's good organic and bad, and efficient and inefficient., but look into polyculture[1]. An old mixed farm would mix crops and sometimes livestock in the same space. The yields were lower, but there were often more yields across the farm to compensate. Thus the yield difference is often not as advertised. Sympathetic planting could actively reduce likelihood of disease and pests. Not everything scales to large farms.

It's also expensive because it's expensive. People expect and treat organic as a premium product. Supermarkets charge accordingly, in no small part because they can. If less industrial approaches to agriculture became widespread, prices would fall. Though unlikely to remove the difference completely.

[1] https://en.wikipedia.org/wiki/Polyculture (Doesn't consider organic polyculture)

jillesvangurp2• 7 years ago

There's the classic variety which uses per-industrial practices to farm. This is indeed cute but hopelessly ineffective. And there's the modern variety which uses data and science driven approaches to farm while minimizing resources. E.g. watering and fertilizing based on drone observed growth patterns and other readings means you can use a lot less. Managing the soil in sane way that preserves it rather than destroys it gives you better yields and also improves water retention. Fighting parasites and pests is a lot easier if you understand the dynamics of their ecosystems and e.g. use predatory insects to counter that. Teaching small farmers some basics about how stuff works might help them improve their yields and put a stop to really destructive practices like burning forests to create land that is briefly usable for farming before it turns into desert.

Things are definitely changing. 'Modern' mono-cultures are based on the state of the art fifty years ago when it was acceptable to just blindly plow, fertilize, and spray many acres of land without even bothering to measure the impact. It works, for a while, but it is not long term sustainable and there is a lot of farm land turning into barren desert world wide due to decades of mismanagement, abuse, and exploitation. The notion that you need to spend a lot on fertilizers, misc. poisons, genetically modified seeds and machines to plow (aka. destroy the soil) your land in order to farm is maybe a bit outdated.

In the US, stopping corn subsidies would do wonders. Most corn farmers would probably adapt to more profitable and less damaging crops. Less corn-syrup in the food chain would be a good thing. Outside the US this is not a common ingredient at all. Also, ethanol is a scam. Abusing farmland for fuel production is insane. Pull the subsidies on that and it that whole market will collapse.

If you are interested, a few interesting videos: - https://www.youtube.com/watch?v=vpTHi7O66pI, Allan Savory on planned grazing as a solution to desertification and a possible new way of cattle farming to feed the planet. - https://www.youtube.com/watch?v=OC_Y1ZTZXQ4, Regreening the planet - https://www.youtube.com/watch?v=kV5LAXZ5HHw, Vertical Farming - https://news.ycombinator.com/item?id=18262496, The rise of the Robot Farmer

You can find much more of this stuff using your favorite search engine. Not all of it is tree-hugger propaganda; though some of it obviously is. What I like is that the application of science and out of the box thinking can be seriously disruptive in terms of getting really awesome results with modest means. Assuming the way we farm today is peak human capability is both fatalistic and depressing. We can do way better; and we should.

Planned grazing in particular is a bit of a mind fuck if you like eating meat. But in a good way. No need to feed cows corn when we could be using them to turn desert back into fertile grasslands while restoring the soil and capturing more C02 that way than is produced by the cattle or the corn farming. Basically the premise of this is that planned grazing fertilizes barren lands and prunes dead vegetation suffocating it thus allowing fresh growth and soil restoration. Healthy soil captures CO2 and retains water. Barren soil releases CO2 and has poor water retention. By doing this systematically, you can turn arid lands back into healthy soil with vegetation, carbon capture, and potential for actually growing some produce. It think of this as terraforming earth. No need to go to Mars for that; we have plenty of human created desert that we can fix before going there.

gph2• 7 years ago

there are plenty of farms that have switched to being fully organic while increasing yields and profits.

But probably not corn or any of the other staple crops. It's going to be hard to get the same yields of those without using modern industrial monoculture techniques.

doctorpangloss• 7 years ago

We don't actually know if profits in real farms rise as much as agricultural tech sellers say they do. Bayer and Monsanto could just have really good sales teams. (They obviously do).

Like with medicine, we'd expect the effects measured in lab of new pesticides on yields to be larger than their real impact in the wild. It just receives considerably less scrutiny than medicine, so really, it's hard to cut through all the bullshit.

Despite what anyone's feel good story may bring up in rebuttal, there really isn't that much talent going into the buy-side of agricultural technology.

So what if it turns out that industrial monoculture techniques are vastly oversold (they almost certainly are), and that the real math shows a slight benefit, but not one that outweighs environmental costs?

AngryData• 7 years ago

Most of corn and other staple crops large yields have more to do with the excessive usage of fossil fuel derived fertilizer. There have been some gains in GMO to get slightly more efficient yields, but we already spent a few thousand years doing that by hand selection so any extra gains are pretty difficult. What we have largely been focusing on is making the plants resistant to pesticides so that the inevitable infection doesn't occur while you are dumping on crazy amounts of freely available energy as fertilizer. Basically we are turning natural gas into food, 60% of the worlds total crop yield in fact exists because of natural gas derived fertilizer, and when nature tries to take it's share of that free energy, we dump anything we can on it to prevent it from infecting our crops. Pump and dump the soil like that for 20 years until it is garbage, sell it off, buy out some poor struggling farmer that is doing sustainable practices, start over again with fresh 50-100 year maintained topsoil.

gbrown3• 7 years ago

Herbicides for dessication seem like a terrible, terrible idea. If I wanted glyphosate to end up in food, that's what I'd do.

gmoes• 7 years ago

I’ve made the same basic comment before, but we need to ban the residential use of herbicides and pesticides. I spoke to a beekeeper who had two hives wiped out by Mosquito Squad spraying on an adjacent property.

I recently came across a 1997 paper called: "Producing and Consuming Chemicals: The Moral Economy of the American Lawn". They cite a higher per hectare usage for residential over agriculture. We need to get rid of our lawns they are literally destroying the planet and they are greenhouse gas emitters when you factor in gas powered mowers and leaf blowers. Fertilizer emits nitrogen oxides that are potent greenhouse gases.

The paper is interesting as it talks about how lawns are marketed. Unfortunately lawns are a multibillion dollar industry. If we are going to fight climate change and environmental degradation, we need to seriously rethink letting business needs take priority over the environment and not just for lawns.

We need to allow people to have native plant yards. I've seen great results with insects. Unfortunately it's illegal where I live and probably most non-rural places. In order to allow this would mean changing state and local ordinances across the US. I honestly don’t think that will happen until it’s too late. By then lawns will be the last thing we will care about.

tootie• 7 years ago

Lawns are the dumbest thing Americans obsess over. I've lived in apartments my whole adult life but if I had a lawn I'd be inclined to just let it go wild. Or maybe plant moss or something.

jbigelow76• 7 years ago

And then your neighborhood association would fine you or try to make your life a living hell until you fell into line and mowed it like a good boy. For people that love to obsess over their own lawns they REALLY love to obsess over their neighbor's lawns.

AlexandrB• 7 years ago

Unfortunately, just like with municipal support of car culture, lawns and their upkeep are often written into municipal bylaws. That's not even getting into HOAs and how restrictive their lawn policies can be - often having requirements down to which species of grass[1] you're allowed to use. Finally there's communal pressure from neighbours, who will give you the stink eye if the weeds from your wild lawn even might encroach onto their manicured grass.

[1] https://forum.mrmoneymustache.com/real-estate-and-landlordin...

bilbo0s• 7 years ago

You'd better make sure you move into a neighborhood that already has wild lawns in it, otherwise you'll be in for some headaches from busy body neighbors.

forkandwait3• 7 years ago

In my hippy puget sound part of the world, we just mow to keep the grass short but otherwise let it do whatever, usually turn brown and be filled with moss and clover. We started to aerate because that helps runoff.

decebalus1• 7 years ago

I’ve made the same basic comment before, but we need to ban the residential use of herbicides and pesticides.

This reminds me of a thread in my local suburban community's Facebook group. Someone was complaining about his dog repeatedly eating some small mushrooms growing in the backyard of his newly bought home and getting sick. The backyard was wildish, had flowers and some patches of tall grass, rocks etc... It actually looked pretty good. The whole thread was about herbicide recommendations. He ended up killing most of his vegetation and finally decided on 'installing' a lawn. A sterile all-American golfcourse-like green. All so that his dog can no longer eat mushrooms. Fucking idiots.

circlefavshape2• 7 years ago

We need to allow people to have native plant yards. I've seen great results with insects. Unfortunately it's illegal where I live

Illegal!? Seriously??

Analemma_• 7 years ago

I don’t know of any places where native lawns are actually against the law, but the parent might mean “against the terms of the HOA”, which is effectively the same thing since HOAs can levy fines and in some cases evict you if you don’t follow the rules. Most HOAs have strict policies stating that you must have the kind of perfect all-American lawn that is at issue here... just one more reason why they should all be destroyed.

gotocake• 7 years ago

My mother has a wild lawn, dominated by ferns, moss, wildflowers and other nifty things. This replaced the previous owner’s typically sterile American lawn. When she first moved in a few decades ago there wasn’t much in the way of wildlife. Now she has deer wandering around, rabbits, turkeys, frogs, snakes, hawks, and more bees than you can shake a stick at.

I really believe that one relatively simple and cosmetic personal choices we make can have a huge impact on our local environment, and by extension the broader one.

ptaipale• 7 years ago

Deer and hawks may visit a place because it now is different, but anything people normally call "lawn" is irrelevant in size as the habitat of wild mammals or large birds. I hardly think the impact is "huge" for the environment, though it may be very nice for the person observing nature from his home (yes, I see deer and rabbits very regularly, even if I have just a lawn, but there's some actual forest starting next to my plot. Neighbourhood got scared because someone spotted a wolf.)

gbrown3• 7 years ago

I'd support this, though I do consider myself a responsible herbicide user. I use only spot application of glyphosate (on dry, sunny days) to help tackle invasive species, or to prepare lawn for conversion to native prairie instead.

Where I see the big problem is the standard practice of treating entire lawns with fertilizer and pesticide mixes. It's such a strange practice to me.

guelo• 7 years ago

This seems bogus to me. There are many more acres of agricultural land vs lawns. Without looking it up I would guess agricultural land accounts for over 90% of the herbicide and pesticide use. We are not going to save the environment by having tiny patches of chemical-free land while huge swaths outside the cities are being doused.

EthanHeilman• 7 years ago

"Homes, golf courses and parks may grow more acres of turf grass than U.S. farmers devote to corn, wheat and fruit trees — combined [..] 2005, researchers estimated there are 40 million acres of turf grass in the U.S., covering 1.9 percent of the land." - https://scienceline.org/2011/07/lawns-vs-crops-in-the-contin...
357,023,500 acres of cropland in the United States. - https://www.nrcs.usda.gov/wps/portal/nrcs/main/national/land...

40 million acres for lawns in the US (2005), 357 million acres of land for crops (2007). However it is very surprising that we use significantly more land for lawns than for corn.

njarboe2• 7 years ago

The answer is "Not known". A decently skeptical article. One excerpt.

"When scientists have collected long-term data on insects, they’ve usually done so in a piecemeal way. The 2017 German study, for example, collated data from traps that had been laid in different parts of the country over time, rather than from concerted attempts to systematically sample the same sites. Haphazard though such studies might be, many of them point in the same dispiriting direction. In their review, Sánchez-Bayo and Wyckhuys found 73 studies showing insect declines."

Start of next paragraph: "But that’s what they went looking for! They searched a database using the keywords insect and decline, and so wouldn’t have considered research showing stability or increases."

PavlikPaja• 7 years ago

Maybe insects evolved to avoid such traps, cars, and people in general.

njarboe2• 7 years ago

I wonder if all these beehives and bee keepers are similar to a bunch of pastoral goats and herders? Almost no control of who puts a beehive somewhere (tragedy of the commons). Those bees then strip all of the surrounding area of flower nectar, leaving nothing for the natural insects, which then die. Bee keepers go all over the US to place their hives and then bring them to California to pollenate the nut trees. Plus the rise in the popularity of honey and the trendiness of having hives for fun.

In addition, bees' diets by commercial beekeepers are often supplemented by man-made sugars. To continue the analogy, imagine that there was someplace that really wanted a bunch of goats for two weeks a year to eat up a bunch of plants as a brush clearing method. People get paid a lot to have goats arrive at that location every year. The laws of the country are such that goats are allowed to roam anywhere and eat plants on people land and fences have not been invented yet. You only have to own the land where they come back to at night(the corral). The goat herders try to maximize the size of the herd by feeding the goats a cheap but nutritiously deficient food for most of their calories, but goats have to get some vital vitamins, proteins, and minerals from the stuff they eat in the wild. In fact, over the centuries the goats have evolved so that they can run fast and long away from the corral in the morning, just to get somewhere that has not already been stripped of wild food that they need, burning the calories supplied by the goat herder. The goat eats for a few hours somewhere that is not already over-grazed, and then runs back to the corral.

When the goat returns it has a way to tell the other goats where it went to find a good place to eat and the next day hundreds of goats head out to that location to strip it to dirt in one day. Other goats head out somewhat randomly on a dead run to try and find somewhere around that has something to eat.

This goat hive can only exist in one place when the grass is sprouting or in places that goats have not been in many years. The goat herders corrals are built on huge trucks so that when they need to move the goats to somewhere else, because the local area is completely stripped, they can just start up the truck and be in a new location 500 miles away in a single day.

A disease now starts spreading among the goats. They get shipped around everywhere so it spreads to other herds really fast. The goats are dying at a high rate and no one knows why or how to cure it, but the goats breed pretty fast. The goat herders can keep the number of goats high enough to meet the demand of the companies that need the annual grazing clearing, but only because of the increasing price the companies are willing to pay. This incentivizes more goat herders breeding more goats at a furious rate. The surviving herders are now searching hard for the last places that have not been completely stripped mined of wild food. Never a blade of grass springs from the Earth where a goat is not immediately there to eat it.

You can imagine what such a system would do to the wild grazing animal population. Anything wild would never find anything to eat, the predator populations would be huge, gorging on the free roaming goats that the herders don't guard. The herders have no way guarding hundreds of thousands of goats. They could not possibly watch over each one and don't even think about how that might be done.

Now add in farmers that grow plants the goats can't eat. They cover huge areas where only a small amount of the wild plants survive that the goats need. Around the farms wild plants still grow, but farms are being consolidated and those edge areas are being eliminated. Some wild animals can eat what the farmers grow, so the farmers develop chemicals that kill the animals that eat their crops. This chemical will also kill goats and gets on the few remaining wild plants the goats eat and poison them too.

Now imagine that the goats and wild animals are so small that the herders and other people in society don't really notice them at all. They only start to worry about the goats when there are not enough goats arriving every year to clear out the brush where the annual spring picnic is held. Only after that happens do a few quirky scientists start looking into the problem and notice that these wild animals that have to compete with goats have been dropping in numbers like crazy for quite awhile.

Just an analogy, but maybe some truth to it?

kossTKR• 7 years ago

This thread is weird to me.

How are so many in the dark about the fact that it's mainly corporate PR that are behind all off the confusion about dangerous consequences from both energy-, agri-, and chemistry business?

Energy companies have known about potential catastrophic consequences for years, scientists have known, people living in nature have known.

People are "confused", doesn't get the urgency or simply ignore the issue because of PR, astroturfing and corporate campaigns.

It's all because of huge corporations hiring armies of lawyers, marketing people and greenwashing lobbyists that write both the laws and the news. (*see my sources if you doubt this )

Forget about the politicians and the consumers - they have been massively propagandized by a conglomeration of enormous agricultural and energy sector companies for half a century.

Seriously it's __well described and documented__ and has been since Exxon found out about climate change and hid its own findings in the 70's.

How do you some of you people know so little about the culprit, and instead blame mostly consumers or the politicians who are bought by corporations?

There is no debate and hasn't been for decades - the culprit is growth capitalism and the mega-corps that ruthlessly lie and distort in service of profits.

This has happened for over 100 years when US car manufacturers killed public transport in the US, and Edward Bernays created modern public PR, that apparently is working frighteningly well still.

Read:

Merchants of doubt https://www.goodreads.com/book/show/7799004-merchants-of-dou...

Toxic Sludge Is Good For You https://www.goodreads.com/book/show/659246.Toxic_Sludge_Is_G...

Exxon Has Known for over 40 years: https://www.scientificamerican.com/article/exxon-knew-about-...

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