Butterflies are in decline across North America, a look at the Western Monarch
156 points
6 hours ago
| 11 comments
| smithsonianmag.com
| HN
shoobiedoo
4 hours ago
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I'll never forget my first week working housing demolition in the Japanese countryside a few years ago. We were outside tearing down an old house, when I saw what I thought were bats. In broad daylight. But they were moving slowly... and I could see their wings beating. Holy crap, those are butterflies. Huge, stunningly beautiful, butterflies. And not just one or two, but many of them. When I was able to get a bit closer, they had dark purple lines and swirls, so not completely black. Housing demolition was a brutal job for many reasons but seeing that kind of thing made it more than worth it.
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julianeon
1 hour ago
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This was common in America once. Around the 1900's, in "wild" places like Texas, you'll see references to clouds of butterflies, in memoirs and such.
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YZF
53 minutes ago
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gorgonian
2 hours ago
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I visited the rainforest in Brazil (Iguazú Falls / Foz do Iguaçu) a few years ago and saw literally dozens of species of butterflies of every size and color. It was truly incredible. Not to mention the falls themselves and the rest of the flora and fauna. The rainforest is amazing!
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1659447091
5 hours ago
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>> To better understand the stresses on these migratory species, scientists at Lighthouse Field are testing a new ultralight radio tag. Weighing less than a tenth of a gram, these tags, when placed on butterflies, can passively ping Bluetooth- and location-enabled cellphones of anyone nearby.

They put a solar powered tracking tag on a butterfly...

Then made an app and gamified it to get people to use their phones to collect, track, and upload the processed monarch migration data. It's like Pokemon Go meets SETI@Home for butterflies.

https://www.youtube.com/watch?v=c8ZyJn6BENc

https://swmonarchs.org/ProjectMonarch.php

https://celltracktech.com/pages/project-monarch-press-releas...

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JCBird1012
5 hours ago
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A related project, but for birds - https://motus.org

Motus is a distrbuted network of ground stations for tracking birds and other species (like bats!) for research - they also use CTT tags for tracking (along with tags from another company called Lotek - https://www.lotek.com)

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tastyfreeze
6 hours ago
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It is my hope that humans can ditch their love affair with pesticides. This is just one example of the unintended impact of pesticides.

I have also found dying birds in my yard a few days after the neighbor sprayed their house perimeter for ants. No toxicology report but there was no sign of any physical damage.

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gravelc
1 hour ago
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Pesticides form the backbone of crop protection. Without them, we're looking at at least a 40% reduction in global yield, and much greater uncertainty in food supply chains (the oil shocks show how bad that can be). Pesticides per se are not the problem; synthetic broad-spectrum pesticides with many unintended effects are. They're often toxic to people and ecosystems, and resistance among pests and pathogens is increasing anyway, so their days are numbered to a degree. Biopesticides, which are generally safer and much more sustainable, offer a real solution to at least the safety issue.

I work on RNAi-based biopesticides (sprayed dsRNA) - non-GM, doesn't impact beneficial species, doesn't hang around in the environment, etc. Already ubiquitous in nature (and part of our diet). Peptide-based biopesticides are another approach that is going well. Both approaches are now commercialised by smaller players (e.g. for varroa mite control in bee hives by GreenLight), and not by the Bayer, Syngenta types.

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nomel
5 hours ago
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I had a salesman come to our place saying that a neighbor had spiders, so their whole backyard was treated! I laughed and shut the door.
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groovy2shoes
42 minutes ago
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i had a salesman say he noticed i had a lot of spiders around outside. he asked who i currently use for pest control. i said, "the spiders." he excused himself and left.

maybe they don't make great decorations, but the spiders generally stay in their webs and don't bother me. i once watched one defeat a wasp twice its size. i might feel differently if we had any dangerous spiders around here (just black widows, and they stay in dark hidey holes), but i'm happy to trade a little space for their services.

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SOLAR_FIELDS
15 minutes ago
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Indeed I live somewhere that has both black widow and brown recluse and they are about the only two spiders I will actually exterminate. Even the fast scary hunter and wolf spiders get a pass
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porknubbins
2 hours ago
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This was my about reaction when I was renting a house and a guy was going door to door to get people to sign up for yard bug spraying. Wait the bugs are already outside and you want to kill them? That’s where they live.
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downboots
5 hours ago
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We'll hopefully look back at these like we now see asbestos. All our scientific advancement doesn't automatically cure myopia. https://www.sciencehistory.org/stories/disappearing-pod/how-...
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Intralexical
2 hours ago
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Asbestos... Lead, CFCs, mercury, cadmium, radium, petroleum, DDT, BPA, microplastics, PFAS, organophosphates, pyrethrins... The more wonder materials turn out to be devastating for human health or environmental stability, the more I think maybe the "no (synthetic) chemicals" crowd have a point.

Or rather, that maybe we're learning the wrong lesson each time. Maybe instead of "asbestos is bad" or "DDT is bad", the real lesson should have been "biological and ecological systems are incredibly fragile outside of the exact combination of environmental conditions and chemical inputs they've specifically evolved to handle".

Too much complexity, too many delicate mechanisms and feedback loops. Can't afford to keep playing whack-a-mole, every generation we replace the old poisons and add some new ones. If we keep introducing new molecules and quantities of substances that evolution hasn't had a chance to adapt to, then we shouldn't be surprised that we keep breaking things.

But let's not pretend we don't use pesticides for a reason. People gotta eat, and pyrethrins are already an improvement AFAIU, less toxic to mammals, similar to molecules that exist in nature. But still, a cudgel. Maybe we need to take ecological engineering seriously, control pest species by simultaneously cultivating stable ecosystems of insectivores/predators and hyperparasites, poison spray not required...

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throwaway27448
2 hours ago
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Zero chance. There is too much to be made by killing everything to love about life for us not to do it
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ceejayoz
5 hours ago
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We had a really bad year of mosquitos and got one of the spraying services in.

An hour later, monarch having a seizure on our porch. Oops. Never again.

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hedora
23 minutes ago
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The only things that work around here are the thermacell repellents (they have a little butane fire that evaporates stuff off a mesh pad). Their effect seems pretty localized in time and space, but I wonder what's in them, and how problematic it is.
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_heimdall
5 hours ago
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Yep, its clever how well chemical companies have sold us general poisons as being highly specific to certain plants/insects/animals.

That's not to say something can't work better on one particular type of biotic, but its still harmful to the others as well.

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NewJazz
4 hours ago
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Mosquito dunks and clear standing or pooling water.
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acdha
3 hours ago
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This stopped working in the mid-Atlantic when invasive tiger mosquitoes arrived. They need like a bottle cap sized amount of water so even things like a flower can hold enough water for them to reproduce.

We’re using scented lures which have the right salt + lipid combo to attract mosquitoes. It helps but I still wish Nathan Myrvold had seriously developed that “photonic fence” product.

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cevn
2 hours ago
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I think the next best thing is an automatic turret that fires salt bullets or something, maybe AI. Hopefully it doesn't take an eye out, but if it took out like 1million mosquitoes for 1 eye, worth it?
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NewJazz
1 hour ago
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I think you would run out of eyes before running out of mosquitos.
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cevn
32 minutes ago
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Fuck it, everyone wear safety goggles outside and try not to make any jerky movements.
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ceejayoz
4 hours ago
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There’s a swamp near us and a bunch of neighbors.
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micromacrofoot
5 hours ago
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it is not love, we need to make it unprofitable

homeowners have nothing on farms, acres and acres of pesticides and monocultures

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fooqux
5 hours ago
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> we need to make it unprofitable

Hard to do that when the very thing you're fighting against drastically lowers the cost of the product.

No, this is what regulation and laws are for. Too bad science and the like seem to be on the way out currently. :/

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micromacrofoot
3 hours ago
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yeah exactly, it can be done but it's harder and more expensive (though likely not as expensive as meat industry subsidies)
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nemo
4 hours ago
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I live in Austin, we used to have huge butterfly migrations long ago, they were amazing to see, big swarms of Queen butterflies as well as Monarchs and other species. Last year's was heartbreaking to see, handfuls where there once were swarms, though I think that was driven by the drought. I have a pollinator garden and have been tracking butterflies in iNaturalist for a decade, last few years the numbers have been showing real decline. I think it's mostly habitat loss for my area.
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tabbytown
6 hours ago
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I planted narrow leaf milkweed in my yard for the first time this spring. This is the first time I've planted something with the intention of it being eaten.
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fooqux
5 hours ago
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I wish clover lawns would at least make a comeback. Still extremely hard to find seed for it though.
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jihadjihad
5 hours ago
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> Still extremely hard to find seed for it though.

It’s not too hard to find in the US. You could buy five pounds of seed [0] right now if you wanted to.

0: https://www.johnnyseeds.com/farm-seed/legumes/clovers/new-ze...

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tmoertel
5 hours ago
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Dutch white clover is easy and cheap to purchase, at least in the United States:

https://www.google.com/search?q=Dutch+white+clover+seed+for+...

https://www.ernstseed.com/product/white-clover-dutch/

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dqv
4 hours ago
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I thought about it, but it turns out the clover that people use for lawns isn't native, and I figured that if I'm doing the lawncare, I'm going to go as native as possible. I don't think our natives here in the US - trifolium reflexum and trifolium carolinianum - work very well as a "lawn" like that. I do have the carolinianum seeds that I want to grow in a container. Both are rare, so I want to help keep them in existence.

I'm looking into native sedges right now since they provide a lot of ecological benefit and are better-suited to growing in the soil conditions of my yard.

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salynchnew
3 hours ago
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You can get alternative bulk mowable native lawn substitute seeds from the Thomas Payne Foundation.
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amatecha
2 hours ago
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Oh, do you perhaps mean Theodore Payne Foundation at https://theodorepayne.org/ ? I was just searching Thomas Payne Foundation and that was what came up
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wewewedxfgdf
2 hours ago
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We need the poison we spray through the entire environment to kill only non-beautiful insects.

Startup opportunity, anyone?

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DivingForGold
1 hour ago
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In decline ? Really ? Come take the dozens of passionflower butterflys away from my yard whose caterpillars are gnawing my plants to the ground !
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kleton
5 hours ago
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Gen X and Millenials don't share Boomers' obsession with green lawns, so it's a race against time, whether Boomers or lightning bugs will go extinct first
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silisili
2 hours ago
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I thought lightning bugs were mostly from light pollution and deforesting? I live in the woods not near a major city, and every summer there's thousands of them still, thankfully.
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Octoth0rpe
4 hours ago
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On the other hand, I don't think I know any millenials that don't have an extremely overbearing HoA that forbids anything other than a grass lawn.
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pkaye
3 hours ago
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I looked it up and a couple of states have laws against HOAs from forcing your to have a grass lawn. Alternatives can include native plants, drought tolerant plants, xeriscaping, vegetable gardens depending on state. The states I've found are California, Colorado, Florida, Texas and Maryland, Nevada.
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tempaccount5050
4 hours ago
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Maybe not directly, but they definitely care about property value which gets you municipal codes requiring you to mow your lawn or get fined.
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sholladay
4 hours ago
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Stop planting butterfly bushes! It’s a trap. Instead, plant milkweed. Support their entire lifecycle.

The names of these plants ought to be changed.

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Kaliboy
4 hours ago
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I'm not American, grew up on a Caribbean island. When I was little milkweed was everywhere, including our yard. Consequently monarch butterflies were everywhere.

But we fought the milkweeds cause nobody wanted them in their yard cause before long it's all you had.

We won the war but we don't have as many monarch butterflies anymore.

Here it had nothing to do with pesticides, we just destroyed their lifecycle.

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jonah
2 hours ago
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You should only be planting native species whatever they are for your specific area.
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darth_avocado
4 minutes ago
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I think majority of places are beyond that point. I’ve found that planting whatever works, even if incrementally, should work. I plant natives, but for natives alone won’t work unless my entire neighborhood does so. So you supplement with non natives that provide something. Milkweed will help with the butterfly larvae but what do you feed the butterflies? Something that’s long blooming and nectar rich. So I let the red valerian that grows like an invasive weed in all conditions, remain blooming in my yard for months at a stretch.
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sholladay
1 hour ago
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The “butterfly bush” is native to China. Milkweed is native to North America.

Milkweed is the only one that can feed the Monarch at all stages of its life, from larva to caterpillar to butterfly. When people plant butterfly bushes, it “tricks” the butterfly (or at least crowds out better options) into laying eggs where the larvae will ultimately die of starvation.

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Rover222
4 hours ago
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Pesticides... messing up everything from butterflies to human colon cells at the moment.
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