На главнуюОбразованиеПохожее видеоЕще от: SciShow

6 Surprisingly Helpful Invasive Species

Оценок: 9028 | Просмотров: 292204
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
Категория: Образование
Html code for embedding videos on your blog
Текстовые комментарии (803)
BHuang92 (9 часов 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 дня назад)
No, honeysuckle really is a terrible, terrible invasive species in the US
Rob Paulson (2 дня назад)
ring necked pheasants
Breanna Reams (3 дня 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 (3 дня 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 (3 дня 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 (4 дня 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 (4 дня 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 (5 дней назад)
Jim Flagg (5 дней назад)
There is one you missed. The Human.
Seal 123 (8 дней назад)
Horses are my favorite animals! 😊
Rabbidsith (9 дней 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 (10 дней назад)
Um..NO. Horses are native to the Americas. Regardless of what happened before.
Spartan501Alex (10 дней назад)
The worst invasive species...Humans
Rice Guy (10 дней назад)
those damm illegals
The26 (14 дней назад)
#7: hoomans
Brandon Toad (17 дней назад)
I spent a week back country in Zion National Park controlling Tamarisk
Anne Reilley (18 дней назад)
Whoever writes these scripts sure likes to say "basically".
xXAnimaXx (19 дней назад)
I saw turtle so I click
Piemasteratron (19 дней назад)
The title should be 6 surprisingly helpful non native species. An invasive species is be definition non native. But not all non natives are invasive. Part of my dissertation was on this
rebekah fuller (19 дней назад)
invasive species" is defined as a species that is: 1) non-native (or alien) to the ecosystem under consideration and. 2) whose introduction causes or is likely to cause economic or environmental harm or harm to human health. Thanks to this video many people will not be able to associate invasive species with tremendous environmental destruction. Not everything that is non-native is invasive, all invasives are bad. Invasives species are responsible for MANY of the animals on the endangered species list. Just please, don't release ANY pets into local ecosystems, thanks
In Harmony With Earth (3 дня назад)
Invasive is an opinion and a rude word. Why not use factual words only. Endemic or Naturalized
zeegirl3000 (20 дней назад)
Upvoted for the mention of Guam! Yay! Also those brown tree snakes are horrible. Had my dogs trained to kill them.
Mik Bubble (20 дней назад)
3:21 Yes, the birds love the berries, but in the case of invasive bush honeysuckle that's often seen growing around the united states, the negative effects far outweigh the good. These large bushy plants will grow leaves before native species and keep them on much longer too. This means that trees can't replenish their numbers with saplings, because the tiny trees can't get enough sunlight. Meanwhile, the bushes thrive with the vast amount of seeds spread through bird diarrhea. A side note that I've personally noticed with the plant is that the bush honeysuckle by my house will often have many dead branches on the underside of the bush, and these branches seem VERY FLAMMABLE. In the case of a small fire, they would help spread it, whereas large trees can sometimes be used to block fires when they are healthy. This plant shouldn't be located in many of the places it is and the bushes are causing a lot of harm. Saying it is positive just because birds like to eat it is quite narrow-sighted. Also, and I cannot stress this enough, adding an invasive species to an area almost always causes some trouble in the end. It should only be used as a solution in certain cases. A much better solution is to stop messing up the ecosystems around us to begin with.
Mik Bubble (3 дня назад)
In Harmony With Earth You must not live where I do. The place is overrun with rabbits and deer especially, but they seem to have little interest in the honeysuckle. Remember that just because it's a plant doesn't mean a herbivore will rush to eat it. And while I agree with you that we should try to reintroduce native species, it isn't exactly logical to stick a bunch of elk in the middle of a suburban area. The best solution is to kill the stuff to keep it from spreading.
In Harmony With Earth (3 дня назад)
Animals eat honeysuckle.Its the only forage that is producing in winter. The animals are missing. We exterminated the Southern Elk, Passenger Pigeon, Carolina Parakeet, Thick Billed Parrot and many more just 150 years ago. Now we keep the white tail deer and rabbits exterminated too low to eat the honeysuckle all by itself. Just reintroduce some elk or stop exterminating deer. Its beneficial
Smurf Boi (22 дня назад)
Just like illegals in the US!
Fuffo (22 дня назад)
The marsh crabs —————————— Are gone!!
Bron _ (23 дня назад)
Horses overgraze and stomp vegetation... but WE like them
Martin Heermance (23 дня назад)
Nice try at propaganda green crabs, but I'm on to you.
Doorwarden (23 дня назад)
When what you call an invasive species turns out to be a benefit to the ecosystem they are called Exotic Species.
A Man (23 дня назад)
dopest cg movie not yet made marsh crabs being invaded by green crabs
3ron (23 дня назад)
A large tamerisk can't evaporate 200 gallons of water a day. They need to go.
William Sutter (24 дня назад)
Moral of the story: Humans are the true invasive species
Riot Breaker (25 дней назад)
This video was brought to you by Invasive Species. "We're really good!"
Stephen (25 дней назад)
Humans tend to look at things in terms of our lifespan. Over time, the evolutionary power of natural selection tends to bring things into balance. Native species may adapt to eat invasive species resulting in a reduction of their numbers. Of course, humans can also help by favoring the consumption of destructive species such as the Lionfish and possibly reduce pressures on threatened native species.
BASSCODE PROJECT (25 дней назад)
HEY YOU, you better be playing this video @ 1.25x playspeed. saves time...
Lawrence Kassab (25 дней назад)
This was very cool thanks
Lawrence Kassab (25 дней назад)
Shellfish lol
Sam Foisey (26 дней назад)
The crab jokes were everything
kentheking89 (26 дней назад)
Mexicans are helpful invasive species too
Dmitry Mikhaevich (26 дней назад)
I think Native Americans will not agree with some ideas about number 1
N/A N/A (27 дней назад)
Dustin B (27 дней назад)
#2 Should have done more research sci show. "Once established, dense tamarisk stands increase fire frequency, lower plant and animal diversity, and significantly alter stream hydrology. Tamarisk consumes a great deal of water, and rarely provides food and shelter necessary for the survival of wildlife. Mature cottonwood communities are declining because shading inhibits the growth of their seedlings." They also "salt the earth" killing all nearby flora and are inedible to local fauna unlike the flora they displace and kill. It's nice that a single type of bird does as well with the tamerisks as they did with the Cottonwoods (but remember the decline of cottonwoods is because of the tamerisks so saying they also help is Trumpian logic), but they're literally killing off everything else. https://www.nasa.gov/vision/earth/environment/invasive_species_MM.html https://www.nps.gov/arch/learn/nature/tamarisk.htm
Mr. Cat IsGod (27 дней назад)
Nice information but I have a gripe with the presenation. Showing the exact words that the person is speaking takes away from the actual information being presented due to redundancy. Rather than just printing the script onto the screen, it would be much more efficient to provide actual visuals to complement the verbal presentation, like statistics, pictures, and animations.
Dimitri Wega (27 дней назад)
One locked up green crab really put the fear of God in them 💀💀💀
CG Account (27 дней назад)
I was worried it would be another American video focusing on just the usa. But eventually the focus was a bit more worldly. .
Valerie Pallaoro (28 дней назад)
Horses " ... and parts of the country likely would not have been settled as quickly with out them ..." Wait, what? ooooohhhh ...
Haley Husk (28 дней назад)
The honeysuckle berries are beneficial to adult birds in the Fall, but provide no nutrition to their babies in the Spring. Almost all baby birds require protein from caterpillars and other insect larva. The invasive honeysuckle plant is host species to NO insects in the US and crowds out those that do support larval-stage insects.
acidtone (28 дней назад)
Dude looks like he shaves his whole body. LOLZ
3131Bubba1313 (28 дней назад)
Also, feral horse trails in the snow help out the antelope population significantly. They tried to get rid of the feral horse population once, but soon realized the tracks left behind by horses in the snow help expose green vegetation for antelopes to eat.
Jack Messina (28 дней назад)
I live in happy valley and there's a heck ton of honeysuckle and a heck ton of birds.
Smerlin (28 дней назад)
White people too late? Ok
Cara 'The Little Windsong' (29 дней назад)
Dad jokes were on point this episode thank u
Moreth The Rogue (29 дней назад)
Kudzu ... that's all I'm sayin'.
Stephen Gardiner (29 дней назад)
Some 20, 000 plus years ago (perhaps even a lot earlier), HUMANS became an "invasive species" in the Americas.
SteveVi0lence (29 дней назад)
#1 most invasive species: MEXICANS
Evil Snail (30 дней назад)
ChristophInns (30 дней назад)
0:55 We do know very well why the American horse and many other animals went extinct about 10k years ago. Humans. These animals survived for 100s of thousands of years through all sorts of climatic changes, many of them worse than what happened at that time, and it was only a coincidence they went extinct when humans arrived?
Beliye Kolgotki (30 дней назад)
#1. Humans
Martavius Spead (30 дней назад)
But how are horses helpful to the actual environment?
Eric Cole (1 месяц назад)
Nasty little green crabs are like tiny Mafioso!
Destiny Palik (1 месяц назад)
Horses are not invasive, they’re introduced and in some cases feral. Invasives are destructive by definition. And honeysuckle berries are a poor source of nutrition for birds. Birds can starve with a belly full of honeysuckle berries. You need to do better because there are already organizations out there trying to avoid the costs of invasive species management with this kind of equivocating
Ali Labeeb Alkoka (1 месяц назад)
I am okay with invasion of different species!
Aman Raj (1 месяц назад)
Please make a video on Eichhornea, Strobilanthus kunthiana. Thanks
Jojo Lolo (1 месяц назад)
I'm in southern Virginia, right on the western end of the boarder of NC and I love honeysuckles! Not only their nectar taste so great, but their smell in the summer is hypnotic and downright romantic.
Litivious Spartus (1 месяц назад)
Humans are an invasive species
sampson liang (1 месяц назад)
Now I'm wondering if any of the invasive species in Hawaii are any good to the environment here.
Alessia Aikley (1 месяц назад)
So since the horses may overpopulate and do damage... maybe some hunters could be allowed to take some each year?
Kenneth David Murdock (1 месяц назад)
"And then humans showed up." So ... we're an invasive species? Sometimes helpful, I hope!
Joseph Eisinger (1 месяц назад)
I'm an ecologist, and as is, this is hella cherry picked-as others have said, it's taking a few isolated circumstances where an invasive might have some slight positive and ignoring the majority negative effects the same species generally on those ecosystems. In conservation we are usually concerned with net effects with exotics--overall is this species causing more harm than good? I would be fine if the video took that angle and said "while overall these species cause major problems"(which the first five certainly do) "but there can be a few surprising upsides in some circumstances that don't make them entirely evil." Currently, the framing of this suggests the exact opposite and is thoroughly misleading. My home state is overrun with amur honeysuckle, for example, and it has fundamentally shifted the structure and composition of forest ecosystems there, outcompeting native plants and creating a dense understory. Their berries are essentially just sugarwater--birds will eat them but they usually have much less nutrition than the native plants provided before they were outcompeted by the honeysuckle. Its a poor substitute at best.
Bismuth (1 месяц назад)
Did he list the horses being used to colonize as a GOOD thing? "Settled" as if people weren't already living there?
orenoishadoukuurass (1 месяц назад)
Ooh that political woke insertion towards the end of the vid😉👌
InsaneBassNinja (1 месяц назад)
Horses was a native species We White people returned them to there native lands by accident
BeChickaboom (1 месяц назад)
Passionately Ambivalent (1 месяц назад)
None of these species are surprisingly helpful, from your own arguments. You describe the exceptions as the rule. Horses, only because they can be captured? Tamarisk/Saltcedar is considered invasive by USGS: (not more good than harm) https://www.usgs.gov/faqs/what-tamarisk?qt-news_science_products=0#qt-news_science_products And at the end, one island is restored by introduction of tortoises - because the native ones were driven to extinct by humans. For that 0.000000001% of the land surface that needs tortoises to distribute seeds, tortoises can be introduced. Good to know. (I didn't list all of them, but each is an oversimplification) Entertaining but not informative.
CactusGaming YT (1 месяц назад)
#7 The Despacito Spiders: They bring memes to the depressed continent of Roblox.
Don Wald (1 месяц назад)
Undocumented critters?
keithscorroschool (1 месяц назад)
New Zealand
Dhaval Bane (1 месяц назад)
So if flowers are reproductive organs of the plant and pollen is like sperm....does it mean that honey bees and humming bird give blowjob's to plants ??????
Searonix (1 месяц назад)
I get that technically domesticated animals can count as invasive species but it feels like putting down Horse for #1 is kind of cheating, especially if only humans can use/benefit from them. Especially since the horses not used/rescued/culled by people who still free roam and are wild cause significant damage and no benefits otherwise.
Indrid Cold (1 месяц назад)
Kudzu is my favourite invasive species.
Chad Polenz (1 месяц назад)
Will Nightshade give me super powers like Bushmaster!?
Puya (1 месяц назад)
always these invasive European (Crab) bullies
Stephen Carmickle (1 месяц назад)
Invasive species are not inherently bad necessarily. The worst part about them is actually the fault of Humans spreading them around. I’m sure certain species would find their way out of their natural habitat on their own but it seems like most invasive species come over on a ship or plane. Then we mark them as a bad thing when it’s really our fault.
Andre Gon (1 месяц назад)
Horses aren't invasive species, they're returning species.
Andre Gon (3 дня назад)
+In Harmony With Earth Agreed, there are species that were once driven off countries before there were records, and while there are evidence of such species once populating those areas goverments don't help at all with repopulation programs. On top of my head I remember a type of owl (or maybe a hawk?) was trying to to go back to england, but there were no records of it ever seen in there, later on evidence was found of it living in there and being part of the ecosystem, but the ecology institutions couldn't be funded because it was seen as an "invasive species". Apparently once a certain species get extinct in an area it automatically loses the right of ever going back. Idiots.
In Harmony With Earth (3 дня назад)
Yes even the tapir of south america is related to rhinos and hippos. We could save the endangered rhino by returning them to their roots in the Americas if we could get rid of this term "non native invasive."
Vincent Jack (1 месяц назад)
Once humans mastered Space Travel, we became an invasive species ourselves. How's that for a change? lol
Reniun (1 месяц назад)
Why did tortoises evolve to be giant on separate sets of islands?
Sandy Hooker (1 месяц назад)
Pretty sure invasive lionfish offer nothing though.
YourAsianComrade 26 (1 месяц назад)
#1 Britain
FaggotEditor (1 месяц назад)
i feel like this is low-key immigration propaganda
Tyler Martin (1 месяц назад)
Didn't the zebra muscles end up being out in Lake Erie... I was a kid, I don't remember the specifics.
magicstix0r (1 месяц назад)
How could you forget honeybees, which aren't native to North America, but are undeniably helpful?
Jay H (1 месяц назад)
Horse repellant?
Charli Y (1 месяц назад)
I feel like you made this video as a test to see if we were all paying attention.
Tonz Lang (1 месяц назад)
Heather C. (1 месяц назад)
I haven't watched the video yet and jumping the gun. I am one of those annoying people right now LOL. If they're helpful are they really invasive, or just non natives?
Mike Hegarty (1 месяц назад)
Lolol. All this arguing over terminology. Won't matter in the end, the most invasive species of all (humans) will end up making the earth uninhabitable for the majority of known species soon. Too smart to realize how stupid we are. Overpopulating and devouring every resource. The bipedal cockroach.
AshKetchum442 (1 месяц назад)
one of my bosses accidentally hit a wild horse with her truck on the way home once. she broke her arm, totaled her call and the horse died.
Sinister Apple (1 месяц назад)
i'm fairly certain that native Americans wiped out the american horses
Tony Bjorklund (1 месяц назад)
Hmmm Eurasian milfoil, zebra mussels, “flying” carp... I am pretty sure those are not needed in the Mississippi River watershed. There are plenty of better tasting fish already here than invasive flying carp. Funny thing, I think ladybugs were brought in to fight aphids back in the 180p’s and I haven’t seen many of them but the Asian beetles that resemble them are prolific.
Theodore Manthovani (1 месяц назад)
Unless it's social animals having trooper arsenal like ants, that we can still call invasive right?
First Name Last Name (1 месяц назад)
I knew 3 channels that did videos like this but now this is the only one left

Хотите оставить комментарий?

Присоединитесь к YouTube, или войдите, если вы уже зарегистрированы.