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Bug United States Science

Monarch Butterfly Numbers Plummet 86 Percent In California (usatoday.com) 148

An anonymous reader quotes a report from USA Today: The number of monarch butterflies turning up at California's overwintering sites has dropped by about 86 percent compared to only a year ago, according to the Xerces Society, which organizes a yearly count of the iconic creatures. That's bad news for a species whose numbers have already declined an estimated 97 percent since the 1980s. Each year, monarchs in the western United States migrate from inland areas to California's coastline to spend the winter, usually between September and February. Results from the count so far show that the number of monarchs at 97 California overwintering sites has dropped from around 148,000 in 2017 to just over 20,400 this year. Counts for dozens of other sites are still being tabulated, but the outlook is troubling.

What's causing the dramatic drop-off is somewhat of a mystery. Experts believe the decline is spurred by a confluence of unfortunate factors, including late rainy-season storms across California last March, the effects of the state's yearslong drought and the seemingly relentless onslaught of wildfires that have burned acres upon acres of habitat and at times choked the air with toxic smoke. The Thomas Fire last year burned almost 300,000 acres, including areas important for monarch breeding and migration. More recently, the Woolsey Fire damaged at least four monarch butterfly overwintering sites in the Malibu area, according to Lara Drizd, a wildlife biologist with the U.S. Fish and Wildlife Service in Ventura.

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Monarch Butterfly Numbers Plummet 86 Percent In California

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  • "Name one ecosystem that is better off for having agriculture moved into it?" Toby Hemenway http://bit.ly/1pnapoW [bit.ly]
    • by Dunbal ( 464142 ) * on Tuesday January 08, 2019 @12:19AM (#57922548)
      Banking.
    • Rice fields are pretty great for ecosystems. They help migrating birds, for example, and walking through them you see all kinds of wildlife.
      • Rice fields are pretty great for ecosystems. They help migrating birds, for example, and walking through them you see all kinds of wildlife.

        I don't think you understand the question or the meaning of the term ecosystem [wikipedia.org]. Rice fields REPLACE a diverse and complicated ecosystem with a monoculture one. While that might benefit a few species, it's a net loss to the environment for the benefit of feeding humans. In most cases it doesn't matter too much until you get to the point where too much land has been purposed for farming and there is no food or other vital resources available to species that need that sort of ecosystem to survive. Monarch

        • by Q-Hack! ( 37846 )

          Just because some species can coexist compatibly with human agriculture doesn't mean that it's "great for ecosystems". Quite the opposite in most cases.

          The beautiful thing about nature; that which does survive the change in ecosystems, becomes the new ecosystem. Good, Bad, indifferent... doesn't really matter.

          • by js290 ( 697670 )

            Just because some species can coexist compatibly with human agriculture doesn't mean that it's "great for ecosystems". Quite the opposite in most cases.

            The beautiful thing about nature; that which does survive the change in ecosystems, becomes the new ecosystem. Good, Bad, indifferent... doesn't really matter.

            A few ways to think about that statement...

            "Annual agriculture is all about living through our concepts... our idea we've imposed on reality & when reality doesn't behave according to our idea, what do we do? We input... we can never input enough to make our false concept correct." http://bit.ly/1GnbtAA [bit.ly]

            "The middle east today is what annual ag does." http://bit.ly/1K3otw2 [bit.ly]

            "Ecology... Nature is only model we have that has survived climate change with sheer, total, utter neglect..." http://bit.ly/1ohVqp [bit.ly]

        • To know if a rice field increases diversity or decreases diversity, you need to know what was there before. To say that it can only decrease diversity is unscientific.
          • by js290 ( 697670 )

            To know if a rice field increases diversity or decreases diversity, you need to know what was there before. To say that it can only decrease diversity is unscientific.

            Monocropping by definition decreases diversity.

            I'm not really sure what your point is.

            Abundance of Ohio River Valley during Jefferson administration http://bit.ly/1cbC2uU [bit.ly]

            • Abundance of Ohio River Valley during Jefferson administration

              Is cool but kind of irrelevant

              • by js290 ( 697670 )

                Abundance of Ohio River Valley during Jefferson administration

                Is cool but kind of irrelevant

                If you don't understand how monocropping affects ecosystems, then you may want to be careful about using the word "irrelevant."

                "Every culture that has depended on annual plants for their staple food crops has collapsed." http://bit.ly/1ck0tnM [bit.ly]

                • "Every culture that has depended on annual plants for their staple food crops has collapsed."

                  Oh come on, now that's just a huge non sequitur, and you know it. There are plenty of reasons cultures collapse, and most of them it's not because of their dependence on annual plants for food.

                  Furthermore it's completely false. There are plenty of cultures around right now that depend on annual plants as a staple food crop. America as one example.

                  I seriously recommend you stop listening to that guy because he just spews nonsense.

                  • by js290 ( 697670 )

                    Furthermore it's completely false. There are plenty of cultures around right now that depend on annual plants as a staple food crop. America as one example. I seriously recommend you stop listening to that guy because he just spews nonsense.

                    Ah yes, American exceptionalism... "irrelevant", "spews nonsense"...

                    • There's nothing exceptional about America, other than America is still here. We could say the same about many other plant-based cultures that are still here. Eventually America will collapse, if history is a guide, but it will not be because they depended on annual plants as a staple food crop.
                    • by js290 ( 697670 )
                      Right because food & resources are "irrelevant"
                    • Which culture are you thinking of that failed because it depended on annual plants?
                    • by js290 ( 697670 )
                      Ancient Egyptians, Ancient Chinese, Ancient Greeks, Ancient Romans, Mayans, Incans, Colonial European countries.
                    • Oh yeah? The ancient Roman civilization collapsed because of dependence on grains? It didn't just evolve into what we now know as Italy? That is what you think?
                    • by js290 ( 697670 )
                      "Massive structures in middle of wasteland??" http://bit.ly/1c30qiw [bit.ly]
                    • It was totally fine until foreign invaders entered in.
                    • by js290 ( 697670 )

                      It was totally fine until foreign invaders entered in.

                      I think there's a famous wall in China that tried to keep invaders out. You may want to study up on that. Ag societies are always worried about invasions. Then one day we find out the bees & butterflies are dying out.

                      Observation vs Concept @RestorationAgD http://bit.ly/1lM3PFS [bit.ly]

                      Transition from HG to agriculture... human domestication... http://bit.ly/1wiHQqE [bit.ly]

                    • Oh, so now agriculture is responsible for the Mongol invasion? And hunting nomads never need to worry about invaders?
                    • by js290 ( 697670 )
                      We're either working with Nature or we're fighting her... HG are in the biz of surviving; they may not have the concept of "invaders" like agriculturalists. http://bit.ly/2vBecTZ [bit.ly]
                    • We're either listening to podcasts from morons, or we're reading books from scientists and becoming wise. You're obviously doing the former.
                    • by js290 ( 697670 )
                      The links I've shared are from practitioners, not academics.

                      Academic discoveries are actually made by practitioners. via @nntaleb [twitter.com] #antifragile [twitter.com] pic.twitter.com/mpL8hNvsbt [t.co]

                      — Praveen Vaidyanathan (@v_praveen) November 28, 2017 [twitter.com]

                    • The links I've shared are from practitioners

                      I'm a practitioner, too. I've worked for over 10 years on a farm, living there. Don't tell me what is right and wrong.

                    • by js290 ( 697670 )
                      Since you're a practitioner, I don't think you're becoming more wise deferring to "scientists"

                      We're either listening to podcasts from morons, or we're reading books from scientists and becoming wise. You're obviously doing the former.

      • by js290 ( 697670 )
        Abundance of Ohio River Valley during Jefferson administration http://bit.ly/1cbC2uU [bit.ly]
    • by Shotgun ( 30919 )

      Every ecosystem that included humans.

      At least, it was better for the humans. Being a human, I find that to be an important concern.

      • by js290 ( 697670 )

        Every ecosystem that included humans.

        At least, it was better for the humans. Being a human, I find that to be an important concern.

        "Every culture that has depended on annual plants for their staple food crops has collapsed." http://bit.ly/1ck0tnM [bit.ly]

  • Not too surprising (Score:5, Interesting)

    by LynnwoodRooster ( 966895 ) on Monday January 07, 2019 @10:40PM (#57922248) Journal
    They are cyclical [biologicaldiversity.org] and are related to milkweed availability. But given that milkweed is considered a noxious weed [sfgate.com] and often targeted for eradication, it damages the Monarch food cycle. Too bad that milkweed is on the weed management area list [ndsu.edu].
    • by ShanghaiBill ( 739463 ) on Tuesday January 08, 2019 @01:42AM (#57922728)

      My mom raises bees on her farm, and has a half acre dedicated to wildflowers, buckwheat for the bees, and thousands of milkweed plants. If more people would do the same, the world would have more butterflies.

      If you have a backyard, you should consider scrapping your lawnmower, and getting some wildflower and milkweed seeds.

      • by Agripa ( 139780 )

        If you have a backyard, you should consider scrapping your lawnmower, and getting some wildflower and milkweed seeds.

        The local government would fine me for doing that.

    • by Mashiki ( 184564 ) <mashiki@gm a i l .com> on Tuesday January 08, 2019 @07:06AM (#57923402) Homepage

      Spot on. Ontario did the same thing under the previous government and declared it a "noxious weed" [www.cbc.ca] in ~2002 or so and monarch numbers plummeted. This is and absolute man-made problem caused by removing a key plant, and in many cases like here in Ontario it was environmentalists and NIMBY's that pushed for it to be labeled as such. The factory farms then got on board because it then allowed them to use more aggressive herbicides to kill it back, especially where it liked to grow with soybeans. Further, the provincial government then pushed local(city/county) to pass bylaws with heavy financial penalties. Around here it was a fine of $500/plant, smoking in a non-smoking building is $2000 to put in perspective.

      • by dryeo ( 100693 )

        https://www.cbc.ca/news/canada... [www.cbc.ca]

        The province once considered milkweed a noxious weed under the Weed Control Act. Nicoll says it was originally banned because milkweed eaten by dairy cows caused their milk to taste slightly sour.

        "It's actually a really pretty plant," she said.

        The province dropped milkweed from its noxious weed designation in 2014, Nicoll learned, but Burlington never followed suit. She even started hearing from friends and associates that they were allowed to have the plants in cities as

        • by Mashiki ( 184564 )

          Where do you get your info? It seems consistently wrong to one degree or another and very slanted such as blaming environmentalists for the dairy farmers lobbying.

          Reality. "Nicoll says" this is incorrect, Nicoll is a city-idiot. I'm not faulting her for being an idiot, she just is. I do commend her for actually fixing a 4 year old problem however, because you can bet your ass people were still being fined or threatened by bylaw officers after it came off the NWA in 2014. The CBC like normal didn't even do the basic diligence of digging for the facts. It doesn't make the milk taste slightly sour. And even if it did, you wouldn't notice it because in Canada we use

          • by dryeo ( 100693 )

            We're still left with your claim that environmentalists put it on the list. Anyways looking more at the Ontario's government sites, it seems it was actually considered poisonous to livestock, especially sheep.
            I must say that having been a pesticide applicator when young, including getting a (BC) ticket in forestry, Ontario does seem to go crazy with their noxious weeds. Here they're pretty well invasive weeds rather then ones that upset farmers

            • by Mashiki ( 184564 )

              We're still left with your claim that environmentalists put it on the list.

              Sure, just dust off the government regulation hearings back in 2002ish and you'll find it quickly.

              I must say that having been a pesticide applicator when young, including getting a (BC) ticket in forestry, Ontario does seem to go crazy with their noxious weeds. Here they're pretty well invasive weeds rather then ones that upset farmers

              Milkweed aka A.Syriaca [wikipedia.org] is the type we're talking about here, and is a primary plant for monarch butterflies that range from Canada in the east. But Ontario listed ALL Asclepais varieties as a noxious weed. The type mainly in BC is Asclepias Speciosa, and was also under the restriction of the noxious weed and invasive plants act.

              • by dryeo ( 100693 )

                We're still left with your claim that environmentalists put it on the list.

                Sure, just dust off the government regulation hearings back in 2002ish and you'll find it quickly.

                Well I can't find any info on the hearings. Did find info on it being removed about 1990. Seemed to be a lot of confusion on actual species with the regulation being too broad and a mixup with Vincetoxicum, which are also called milkweeds in some circles. This did seem to be pushed by environmentalists trying to help the Monarch.
                https://www.ontariocanada.com/... [ontariocanada.com]

                I must say that having been a pesticide applicator when young, including getting a (BC) ticket in forestry, Ontario does seem to go crazy with their noxious weeds. Here they're pretty well invasive weeds rather then ones that upset farmers

                Milkweed aka A.Syriaca [wikipedia.org] is the type we're talking about here, and is a primary plant for monarch butterflies that range from Canada in the east. But Ontario listed ALL Asclepais varieties as a noxious weed. The type mainly in BC is Asclepias Speciosa, and was also under the restriction of the noxious weed and invasive plants act.

                I can't find any noxious weed list from BC that includes any species of Asclepias. Even checked my literature from about 1980. It seems fairly rare

    • Maybe we could genetically engineer the Monarch butterfly to feed on marijuana plants instead of milkweed.
    • by dryeo ( 100693 )

      OTOH, from https://monarchjointventure.or... [monarchjointventure.org]

      Is milkweed an invasive weed?

      There are many species of milkweed native to North America and while “weed” is part of their name, these milkweeds are native, beneficial wildflowers. In the U.S., neither the federal government nor any states list milkweeds as noxious weeds. In fact at least five species are listed as state or federal endangered species (Borders, LeeMäder 2014). According to the North American Invasive Species Network, an invasive sp

  • by bobstreo ( 1320787 ) on Monday January 07, 2019 @10:48PM (#57922288)

    https://blog.nwf.org/2018/03/m... [nwf.org]

    I've been allowing milkweeds to grow on my property since I bought it. I mow around them...

  • Maybe California should slow the human encroachment into their habitats. With people comes noise, pollution, abnormal lighting and invasive species.

    And California should stop encouraging building in fire zones [reason.com].

  • by Anonymous Coward

    Remember?

  • by Anonymous Coward

    The cartel in Mexico is destroying the butterflies environment with the production of heroin, meth and other drug processing without regard to the damages to the local areas. Not to mention their allergy and suffering debilitating effects of marijuana smoke.

  • Perfectly normal (Score:5, Informative)

    by bradley13 ( 1118935 ) on Tuesday January 08, 2019 @02:02AM (#57922756) Homepage

    Massive fluctuations in the butterfly population are perfectly normal. [yale.edu]

    The link goes to a paper from 1974, and looks at data back into the 1950s. For example: "A population peak occurred in 1950 and 1951 followed by a marked reduction in numbers in 1952; by 1953 the populations had been reduced to such an extent that no over-night roosting colonies could be found in areas where they had previously occurred in thousands and only seven field specimens were collected throughout the entire summer period. "

  • Sad (Score:1, Interesting)

    by Anonymous Coward

    As an old fart who remembers when monarchs were commonplace, I can't help but feel sad for future generations who will never see their beauty. Young people now grow up in a world where NOT seeing monarchs is normal. That's part of the problem, right? The baseline for how the world is is shifting so it's hard for new generations to appreciate the effect human activity has had on the planet.

    Our planetwide ecosystem is collapsing. It requires dramatic changes to how to handle ourselves. The current human popul

    • Re:Sad (Score:5, Informative)

      by phantomfive ( 622387 ) on Tuesday January 08, 2019 @03:10AM (#57922900) Journal

      Our planetwide ecosystem is collapsing

      In America it's improved dramatically. Remember when rivers actually used to catch fire? Our air quality is so much better than it used to be, we used to pump so much lead into the air that it caused mental problems.

      There are some issues in the developing world, but overall they've learned to move through the developing phase much more cleanly than we did (of course, they learned lessons from our mistakes, which is a good thing).

      • by Anonymous Coward

        Air quality is just one factor. It's great that you can breath better and that the air doesn't drive you mad. However, there are other factors here and those are clearly relevant to the health of Monarchs.

  • by 93 Escort Wagon ( 326346 ) on Tuesday January 08, 2019 @02:33AM (#57922830)

    I mean, come on. They’re Monarchs, most are going to be very conservative. You think they’re gonna feel welcome in California?

  • from leftists fucktards. Good job.

  • Something something The Venture Bros

  • It's probably Neonicotinoids. It's a poison that kills everything.

  • by Ol Olsoc ( 1175323 ) on Tuesday January 08, 2019 @09:46AM (#57924056)
    Get planting milkweed folks. The butterflies have had a rough time this past year in Cali, and the best way to help them is feeding them.
  • What else is new?

  • I literally just went with my son to the Butterfly Preserve that's located in Goleta, near Isla Vista (think UCSB). No butterfly sightings. The flowers were not in bloom.

    Let's hope people realize milkweed has a purpose, just as mixed crops in farms and hedgerows are what sustain bees.

  • I used to see loads of monarch around in northern illinois and later in Northern Colorado. Over the last decade, I have noticed that they are no longer showing up.
    In addition, here in Colorado, we have what are called Miller moths. 10 years ago, we would have 100s outside and 10s inside. Now, I hardly see any Millers.

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