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6 Surprisingly Helpful Invasive Species

Оценок: 10464 | Просмотров: 383884
Not all non-native species are totally terrible! Here are six of them can actually do more good than harm. Hosted by: Stefan Chin Head to https://scishowfinds.com/ for hand selected artifacts of the universe! ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.invasivespeciesinfo.gov/animals/bts.shtml http://www.slate.com/articles/health_and_science/green_room/2009/11/dont_sweat_the_invasion.html https://www.nytimes.com/2016/03/01/science/invasive-species.html https://news.nationalgeographic.com/news/2014/07/140724-invasive-species-conservation-biology-extinction-climate-science/ https://www.nps.gov/articles/southwestern-willow-flycatcher.htm http://www.mauritian-wildlife.org/application/index.php?tpid=30&tcid=80 https://www.popsci.com/invasive-species-help-habitat http://www.sciencemag.org/news/2013/04/hated-invasive-species-helps-restore-ecosystem https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1523-1739.2010.01646.x https://www.macalester.edu/~davis/Nature%20Essay.pdf https://academic.oup.com/jhered/article/97/2/107/2187641 http://rsbl.royalsocietypublishing.org/content/12/2/20150623 http://www.iucngisd.org/gisd/species.php?sc=1698 http://wildlife.org/wp-content/uploads/2014/05/Feral-Horse-and-Burro.pdf Images: https://commons.wikimedia.org/wiki/File:Brown_tree_snake_(Boiga_irregularis)_(8387575202).jpg http://www.thinkstockphotos.com/image/stock-photo-horses-run-gallop-in-dust/864573690 http://www.thinkstockphotos.com/image/stock-photo-flock-of-ponies-on-meadow-over-lake-planinsko/857525524 http://www.thinkstockphotos.com/image/stock-photo-horse-in-water/510489580 http://www.thinkstockphotos.com/image/stock-photo-vintage-manual-harvest-scene/98732171 https://commons.wikimedia.org/wiki/File:Tamaris3.jpg https://commons.wikimedia.org/wiki/File:Willow_Flycatcher_-_Malheur_NWR_-_Oregon_S4E0692_(19201908736).jpg https://commons.wikimedia.org/wiki/File:Flowers_of_Iran_by_qom_city_04.jpg https://commons.wikimedia.org/wiki/File:Map_of_Pennsylvania_highlighting_Centre_County.svg https://en.wikipedia.org/wiki/File:Carcinus_maenas.jpg https://en.wikipedia.org/wiki/File:Carcinus_maenas_range.png https://commons.wikimedia.org/wiki/File:Sesarma_reticulatum.png https://en.wikipedia.org/wiki/File:Spartina_alterniflora.jpg https://commons.wikimedia.org/wiki/File:Gracilaria2.JPG https://www.nobanis.org/ias-photo-bank/gracilaria-vermiculophylla/ https://en.wikipedia.org/wiki/File:Aldabrachelys_gigantea.JPG https://en.wikipedia.org/wiki/File:Tour_of_the_Galapagos.ogv https://en.wikipedia.org/wiki/File:Seychelles_outer_islands_25.08.2009_10-20-09.jpg http://www.thinkstockphotos.com/image/stock-photo-main-mauritius-island-view/530100871 http://www.thinkstockphotos.com/image/stock-photo-close-up-portrait-of-aldabra-giant-tortoise/940485024
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Текстовые комментарии (926)
Etho The Great (4 дня назад)
You're an kind of lacking on info. Horses are native to north America but then crossed the bearing strait and moved to the steppes. The horses that remained in north Korea were hunted
Etho The Great (4 дня назад)
Nvm my bad
Chopped Artisan (4 дня назад)
"like one called Mauritius" ?
Fandom Fancy (5 дней назад)
What about earth worms?
SheerSniper7 (6 дней назад)
I'd argue humans have been one of the worst and best invasive species
John Qiang (6 дней назад)
Most invasive species to North America. Homo sapiens europa
Kevin Zilverberg (6 дней назад)
Interesting, I think there should be more serious studies on, lets call it bio-compatibility.
Kebab Tilders (8 дней назад)
Australia is sick of rabbits and crabs tbh
TheCarrifaery Bear (8 дней назад)
you said snakes have imaginary hands and im supposed to believe this is science.
Luis Seares (8 дней назад)
Do you even know what imaginary means?
Mother Fucker Unlimited (9 дней назад)
settling the united states was a bad thing
Landon Roy (9 дней назад)
Kill every single invasive species, including muslims
Shivrang Soman (8 дней назад)
whoa dude Muslim are not invasive species and they are humans we are all equal and same
braf zachland (9 дней назад)
i don't think invasive means what you think it means.
Harry P. (10 дней назад)
Removing harmful invaders, would be a good idea.
rejvaik (10 дней назад)
No invasive species are good for the environment.
Bob Adkins (12 дней назад)
The Chinese tallow tree is my personal worst invasive species. That, and the red eared turtle, which breed like rats.
Joey GB (13 дней назад)
7 white people
Joshua Slowpoke (14 дней назад)
Regarding how you described the relationship between birds and honeysuckle plants... That’s literally how fruit works. Of course birds are going to eat berries and crap out the seeds while on the wing, this particular type of mutualism is borderline old news.
darkfeffy (14 дней назад)
Dat rascal green crab. Like John Wick
TheFarmanimalfriend (14 дней назад)
Humans are so smart. They introduced rabbits into Australia, lion-fish into the gulf, freshwater clams into the great lakes, Pythons into Florida, antibiotic resistant bacteria into a hospital near you! Every time we have tried to f*** with nature it has backfired. People that do not understand natural selection should not f*** with deciding to bring in an invasive species to solve their problems - it never ends well.
Kai derauqsK (16 дней назад)
Horses : help the native land to be colonized by invasive humans, is that a good thing?
Jason Gooden (16 дней назад)
Kudzu.
MadHatt3r (16 дней назад)
Not exactly helpful, but pheasants were introduced in most of Europe and US im pretty sure and theyve adapted quite well, to the point where many people ive talked with were very surprised they are introduced 😀
Lily Worst (16 дней назад)
This video infuriates me. While for the most part, I think SciShow does a pretty good job with their videos, making complex scientific ideas more accessible to a wider range of people, the framing of this video is inexcusably bad. It is framed as "the benefits outweigh the harms" (literally in the video description "here are six of them that can actually do more good than harm") which for many of these invasive species is completely incorrect. As someone who lives in the Western United States, I especially find fault with their defense of feral horses. The argument presented is that wild horses are good because, even though they destroy native habitat, outcompete native elk, deer, and antelope, spread diseases which can be devastating to native populations, and generally wreak havoc on the environment, domestic horses are good so therefore so are these feral horses? This ignores the fundamental difference between domestic and feral horses: that domestic horses are carefully controlled by humans, well trained and living on land that has already been appropriated and altered by humans, while feral horses live in environments that we are trying to protect, and actively destroy and alter them. This video also seems to imply that feral populations of horses are the only way to get domesticated horses? Furthermore, arguments like this are exactly what lead to the federal government making it a FELONY in the United States to control the populations of feral horses through hunting, which effectively means that this invasive and destructive species is infinitely more protected by law than beneficial and native elk, deer, and antelope, which can be killed with the correct permit. Not only does this video present a totally unrelated argument as to why feral horses are good, it also perpetuates harmful ideologies, and prevents people from examining their beliefs, in order to address this huge problem. Believe me, feral horses do not need any more good press, that's all they have, and its leading to the destruction of our environment. This video seems to advocate complacency and inaction in the face of invasive species, because in some very specific and small instances they can help the environment, even though these same species still cause immense harm which far outweighs the tiny benefits they produce, which often could also be filled by the native species they are outcompeting as well. In short, this video allows people to continue to do nothing in face of these environmental threats, by saying "oh, these species do more harm than good" and then proceeding to only talk about the very tiny amount of good they do and leave out most of their destructiveness on the environments they invade. It also completely ignores the difference between an invasive species, and a purposely introduced species to fill a specific niche, vacated by a similar species or population.
Seth Glover (19 дней назад)
how about Gause in New Zealand serving as a nursery for native plants seeding regeneration of native bush. not such dumb, money hungry Maoris now hah. (joke only decipherable by new zealanders)
Ann van de Kew (21 день назад)
The first peoples of America obviously hunted all the native horses to death and extinction.
stale memes (8 дней назад)
Ann van de Kew The natives would not hunt rare animals, don’t they teach you this in school
Lumberjack king the great (22 дня назад)
We're in vasi e
John Munro (24 дня назад)
I vaguely remember being told the Spanish brought horses here in the 1500's but I forget how they brought them over seas since would they get sea sick and easily die?
Chesney Nichols (24 дня назад)
Ya I don't care about birds there one few only over populated animal left
Catfoodbob (25 дней назад)
Humans are invasive species.
jacky zhu (25 дней назад)
You mean "6 helpful non-native species"
Micah Todd (26 дней назад)
You guys put a couple funnies in this, I really liked how he script was written in this episode, also nice to hear something nice
47Ronin (29 дней назад)
Horse Smash!
The only Invasive species is the Human species
Damian Aceves (1 месяц назад)
You forgot humans lol
Ignatz71 (1 месяц назад)
What??? No humans?!?
Jesse Davis (1 месяц назад)
Guy has a funny lookin nose. I couldnt not watch the video. It was mesmerizing.
Ken Va (1 месяц назад)
Good Video, But had to give it a thumbs down for the Shellfish joke....
Joe T (1 месяц назад)
Numbee 1 should be the Europeanjibeu bee. Technically an invasive species in north America
LUC HARTWELL (1 месяц назад)
Don't forget the dingo
ReverenXero (1 месяц назад)
So what were the native American riding way back when?
stale memes (8 дней назад)
ReverenXero Nothing
Mok zin (1 месяц назад)
You forgot one of the most invasive species in the world. Humans. Fuckers eat everything and destroy all the land they go to.
hanzifaction (1 месяц назад)
Nature will strike a balance either way. But the challenge is what do we lose in the process. Some invasive species are definitely worse than others, several over time can actually naturalize and fit into a ecosystem, like common carp in N. America. However, other invasive species like the emerald ash borer have the potential to functionally expirated a entire tree species, fraxinus spp. It's a complex problem, with no clear answer. But we should try to prevent new invasions and spread existing ones, and slow down the process.
Tay h (1 месяц назад)
I have not ever hit dislike on a video before now, this video was clearly made with a complete and total misunderstanding of the subject matter in question. To start off with, one or two positive things does not offset the immeasurable damage that each of these species have caused (minus the number one, which was nearly the same thing as the reintroduction of an extant species) even the description of the video "Here are six of them can actually do more good than harm." "do more good than harm" is a tall order to fill, and you did not deliver in the slightest. "Horses can be retrained to be helpful to humans" .....really? Yeah, that is clearly a benefit worth sacrificing the ecosystem for. The Tamarisk is an invasive plant that is actively outcompeting the trees that the bird in question needs to survive. The birds are not flocking to the tamarisk because the tamarisk is a good plant. It's because the tamarisk has had a hand in killing the trees that the birds REALLY need, and the birds have no other choice. The Honeysuckle one....I don't even know which honeysuckle you're talking about. There are FOUR HIGHLY INVASIVE and destructive honeysuckle in Pennsylvania: Lonicera morrowii, L tatarica, L maackii, AND L japonica..... and you put up a picture of not a single one of those.... no, you showed your audience a picture of Lonicera sempervirens, THE NATIVE ONE!!! I was screaming, this is some next level incompetence. To add insult to injury, saying that simply 'being a foodsource' to some birds that are already 'not picky' (which is part of the reason there is such a pervasive invasive problem in Pennsylvania) is a really lame excuse. There are plenty of native plants that WOULD be a great help to those birds as well. Plants such as Cornus florida, Cornus canadensis,  Amelanchier canadensis, Aralia racemosa, Ilex verticillata, Arisaema triphyllum, Vaccinium angustifolium, Mianthemum canadense, Mitchella repens, I could literally go on for hours, which are ALL both native and provide both ecological diversity, as well as food at different times of the year are being outcompeted by these invasive honeysuckles, to a point at which finding any of them is almost considered a 'rare' occurrence unless you are a scientist actively searching for them. I fully came into this video expecting to see the likes of the alfalfa leafcutter bee, an introduced species that is a phenomenal pollinator and managed to save the alfalfa crop industry from collapsing and whose negative impact on the ecosystem has been comparatively negligible. I expected to see more stories like that. Instead, what was presented here was a narrow view of an ill-researched subject with rose tinted lenses and a strange agenda to look at damaging misplaced species as something to be unconcerned with. Thankfully, I have seen from the comments that there are many people who are educated enough to see past this misinformed view presented here. That gives me hope.
xXevilsmilesXx (1 месяц назад)
Yep, SciShow is still gross.
sparkee666 (1 месяц назад)
Invasive species aren't a problem. It's just nature adapting to a changing environment. I find it more disturbing that mankind thinks preventing the change that is occurring (even if we're responsible for it) is the way to preserve and save things.
Big Koss (1 месяц назад)
6:00 CRAB BATTLE!!!
Bjarne Sinkjær (1 месяц назад)
So horses destroy vegetation og compete with native animals - but are 'helpfull' because humans use them and love them. This video failed right there.
SquareDates (1 месяц назад)
You lost me at shelfish
Kick Face (1 месяц назад)
Viking crabs from the north.
Jesse Says (1 месяц назад)
Evolution, take a back seat already.
Earth Man (1 месяц назад)
"Not totally bad" and "totally bad" doesn't change the "bad".
Eddie Spaghetti (1 месяц назад)
This video is a little poor, horses may have many uses in North America but they're still a problem, especially in other parts of the world they're incredibly bad for the environment, e.g. Brumbies in Australia where they destroy plant life and ruin soil with the grazing.
peterinbrat (1 месяц назад)
This was simply awful by every metric I can think of, starting with not knowing what invasive species are.
IntermediateJesus (1 месяц назад)
#11 white people
trackydog (1 месяц назад)
Man biggest invasive species in history.
TheMatron'sMilitia (1 месяц назад)
Humans are the invasive species
MICHAEL GOLD (1 месяц назад)
None of these examples show that the invasive species are beneficial. Horses being used by humans is not helping the environment. And the other examples are mostly about species replacing native ones that have been wiped out by human activity.
Ji F. (1 месяц назад)
You forgot to mention that Gracilaria "seed weed" (hate that term, not a weed) is edible, and nutricious, and considered a delicacy in many places including Japan (ogo), and Hawai'i (Limu Manauea). When you harvest pinch or cut the stem leaving the hold-fast (root) to grow some more. To prepare rinse well then quickly dip in boiling water just for a couple seconds then rinse in cold water. It changes color almost instantly when it hits hot water. After rinsing in cold water just chop up and mix into to your ahi poke for added texture and nutrition. Japanese style it is great cut into shorter strands and made into a salad mixed with sliced tomatoes, onions, and cucumber and tossed in a sweet rice vinegar dressing. The thinner varieties you can even simmer in water until completely dissolved creating a neutral flavored gelatin that you can add sweetening and flavors to before cooling and and solidifying. You can add it to sweetened azuki bean paste to create a Japanese sweet treat called Yokan.
Ewie M (1 месяц назад)
You left out the biggest invasive species - the European honeybee.
harry viking (1 месяц назад)
There is one species that are creating havoc on anything they touch.....HUMANS!!
Jerome L. (1 месяц назад)
Mexicans
Akitas in the House (1 месяц назад)
Saying that taming feral horses helped humans settle North America doesn't change the fact that feral horses are bad for the environment. I don't get that example. There are plenty of species that humans have found a use for that nonetheless have been destructive and killed off other species. Even the crab example wasn't very good. It was helpful in one particular place where humans had destroyed the local ecosystem, but it's only "helpful" because we screwed things up. Everywhere else it's decidedly UNhelpful. The common factor with invasive species is human interference, and the harm or good a species does is being judged by its value to humans rather than any value it might add to existing species. Not impressed with the spin they put on this.
Lordlt82 (1 месяц назад)
didn't see people on this list.
PranksterGL25 (1 месяц назад)
So because of eight examples, we should stop using the term "invasive species"? I don't think that math works, how about we just reclassify the eight species here and others, since you know most of the invasive species are rapists of the areas they spread, or just rapist in general, your call. :P
Devon Boulden (1 месяц назад)
You left out Australia's dromedary camel.
Jacek K (1 месяц назад)
Potatoes? Tomatoes?
James haury (1 месяц назад)
A bit Shellfish groan!
Hayden Philbert (1 месяц назад)
Eat them.
Drayvel Harris (1 месяц назад)
looks like someone broke this guys nose
Billy Scranner (1 месяц назад)
I love the Mad max reference
Chayton Thompson (1 месяц назад)
Horses shouldn't be on here
Kiki Lang (1 месяц назад)
The damage caused by feral horse is actually minor. It is false precieved by the cattle industry that horse are eating food that cattle could use. The last feral horse are on the way out. Sadly, it's believed that the horse was wiped out with the other mega animals when the native Americans came to the Americas. The sad fact is feral horse in America have a unique genetic makeup, which makes them robust healthwise. Feral horse are not much to look at, but they are tough as hell. Feral horse should be gone in the next ten years, so there they go.
Raspberry Fury (1 месяц назад)
how about the most dangerous invasive species called "HUMAN"
asyllumm (1 месяц назад)
I agree with these comments, it is nice to see a video that touches on the complexity of introduced species and how their effects are neither simplistic nor entirely bad in most cases. That said, I am not sure how the Aldabra tortoise classifies as an invasive species (rather than as an introduced species) if it is not adversely impacting the natural ecosystems. More importantly, the argument about whether the term 'invasive' should be retired is non-sequitar. I agree that it is easy to cast blame on individuals of an invasive species even though it is our fault they arrived and that they are just trying to live their lives like every other organism. But to say that they should not be considered 'invaders' because they are not being orchestrated like a human army is a strange, anthropomorphic argument that ignores the fact that they are causing problems regardless if a subset also confer benefits. The final argument is especially dangerous. While it is true that not all introduced species become invasive (the majority of introduced species die out and many of those who do become established are relatively innocuous or sometimes even beneficial), the feasibility of stopping an invasion decreases exponentially the longer that species has to establish itself while the cost of managing it concurrently increases rapidly. Slow responses to identified injurious species, whether due to negligence, resource constraints, or because too much time is spent studying what it will do (as advocated in this video), are one of the main reasons that invasive species become established. Unfortunately, most unintentionally introduced invasive species are far more deleterious than beneficial for ecosystem functioning. Even the species discussed in this video (with the exception of the tortoise) are still having adverse impacts on certain taxa or ecosystem services even if they are beneficial or invaluable in certain situations. This is a complex and context-specific issue but generally, the benefits of proactive monitoring and elimination of injurious species greatly outweighs the benefits of procrastination or hoping for unintended benefits. Regardless, I appreciate the purpose of this video for demonstrating the complex interactions invasive species have on their environments.
Courtney Woodbury (1 месяц назад)
Weird delivery on that cage match joke. I should let it go...but I guess I just can't get Beyond Thunderdome. BOOM! Now I can knock that little accomplishment off my bucket list. :P
Philip Wagner (1 месяц назад)
Excellent presentation !
The Catfinch (1 месяц назад)
The Russian olive is another example. They've become so naturalized that almost all bird species in Washington state eat their fruit over the winter. In fact, their fruit is the only reason that yellow rumped warblers are seen in parts of the state during the winter. Its been documented that if you remove the berries from the russian olives in the winter the wintering warblers will move south or just die from lack of food
Eriri Spencer Sawamura (1 месяц назад)
Horses are actually native to the United States... Just not the horses that came from the European continent
1357conor (1 месяц назад)
Are we humans not the most invasive species of all?
陈北宗 (1 месяц назад)
Another example: freshwater mussels. Some native American species are picky about the water they live in, and increased pollution from industrial sources drove them into extinction. Meanwhile Asian species are much hardier and can tolerate even heavily polluted water, eat and poop about as much of the same things as the native ones, and people brought them over as a delicacy in the first place. In the predators' eyes Asian and native American mussels makes as good a dinner as each other, so they just don't mind either. As of Now the Asian mussels replaced native American ones supporting an ecosystem that was supposed to be vulnerable to pollution.
Dzaki Prakoso Ramadhan (1 месяц назад)
The European green crabs' invasion are practically like European colonization in the past, they invade/colonize some place and then make it better
Ben Quinney (1 месяц назад)
Evolution
deicidemaul (1 месяц назад)
I'm a simple man, I see a tortoise, I click
Melanie Ortiz (2 месяца назад)
Leave the wild horses alone.
Paula Cifuentes (2 месяца назад)
Acting a little shellfish😂😂 i loved it💕
Jerrod Milton (2 месяца назад)
Worms. Earthworms where almost nonexistent in North America before the Colombian Exchange.
Roland Sterijuanna (2 месяца назад)
you look like an invasive species
Sonicice 24 (2 месяца назад)
Some invasive species like Zebra Muscles need to be extinced.
BHuang92 (2 месяца назад)
Another fact on #1. The most significant impact horses have in North America were to the Native Americans. They learned how to tame them and it revolutionized their lifestyle. No longer would they hunt bison by foot, they hunted their food source more efficiently and had a great impact on their culture to the point of worshiping them.
Mr Shambleface (2 месяца назад)
No, honeysuckle really is a terrible, terrible invasive species in the US
Rob Paulson (2 месяца назад)
ring necked pheasants
Breanna Reams (2 месяца назад)
I don't think you should call something invasive that was only absent from its native range for 10,000 years. So what if horses compete with our livestock? That's not the criterion for invasiveness. If anything our livestock is invasive.
In Harmony With Earth (2 месяца назад)
Invasive is a person's opinion. Invasive is a profain and rude word. Native is not accurate as many plants and animals are "native" to several continents and many brand new islands. Lets use Endemic and Naturalised instead. Oh i forgot the non native removal program going on is a marketing tool,to charge taxpayers for Monsanto Herbicides as they are in control of most countries agriculture departments especially the U.S.D.A.
In Harmony With Earth (2 месяца назад)
Great video. I agree 100% lets retire the ugly rude word invasive species, stop funding the poison companies to exterminate and eradicate everything new to an area and fix the empty niches we've caused by extinctions by replacing the lost animals and plants with simular species. It works.
Roomy (2 месяца назад)
If something went extinct 10-12 thousand years ago, you have a very safe bet on explaining what happened. Humans happened.
In Harmony With Earth (2 месяца назад)
Read The New Wild. By Fred Pearce. There is no way to stop diversity and change. To do so is detrimental especially with the use of poisons charged to taxpayers by governments controlled by Monsanto's herbicide corporations.
Digilici (2 месяца назад)
SCREAMING TURTLE
Jim Flagg (2 месяца назад)
There is one you missed. The Human.
Seal 123 (2 месяца назад)
Horses are my favorite animals! 😊
Hometown Rhetoric (2 месяца назад)
America has a helpful invasive subspecies called the "huWhite Man". Mysteriously, this endangered subspecies of bipedal ape seems to exhibit an almost pathological level of altruism towards outgroups. (and in rare cases, other species) This level of pathological altruism is so extreme that they will even generously gift resources to hostile tribes. (despite many of these hostile tribes clearly vocalizing their aggressive intentions)
Michael Howell (2 месяца назад)
Um..NO. Horses are native to the Americas. Regardless of what happened before.

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