My cat brought in a wood pigeon once. He was so proud! You could hear him purring from the next room. And he was most upset when I released the mostly unharmed pigeon into the wild again.
Yes! My cats have occasionally caught a bird, but they usually are gentle enough that I can rescue the bird. They caught a baby sparrow once, at the age when it was just starting to fly, I rescued it, fed it for a few days, then released it - and its parents RECLAIMED it! They had apparently been waiting around for a few days while I fed the little mite out in the yard, and once it was free, they both flew down and encouraged it to fly into a tree. Dogs, on the other hand... My dog was a whiz at catching flies in the house. We thought it was wonderful - until we realized that she was using the same technique to chomp robins in the yard... Imo dogs do as much if not more damage than cats, at killing off bird populations.
@@WWZenaDo I'm sorry, but although he has on occasion brought in live birds, he has also killed quite a few of them. He tends to swallow them whole, though, so all I find is a clutch of feathers in the morning.
@@WWZenaDo Sparrows, wrens, red robins.Maybe not whole - I think he bites the head of separately. For a long time he didn't eat them, but then he was lost for five weeks and I think he learned that there was food on them.
Dr. Nelson is a really good guest for this show, I think because she brings enough energy and assertiveness to match Hank. Hank talks a lot and I've seen him sort of talk over other guests, but Dr. Nelson is fantastic at holding space.
I just completed a research project about the use of native plant allelochemicals in suppression in invaders that disperse through wind. Found that the reversal of the “novel weapons hypothesis” has the potential to be helpful in preventing spread of some invaders from spreading.
Kudzu is rampant in the southeast United States. It's a climbing vine that grows fast and covers everthing with broad leaves so native plants don't get any sun.
That's a bit of an exaggeration. Kudzu is invasive, but not nearly as bad as it's made out to be. www.smithsonianmag.com/science-nature/true-story-kudzu-vine-ate-south-180956325/
This is false. No actual evidence to back up the claims of environmental harm caused by this or any other so-called "invasive" plant. See the work of Mark Davis, David Theodoropoulos, David Frank, Tao Orion and so many others trying to stem this tide of almost religious fervor around the further destruction of ecosystems in the name of a pseudoscience that has become more of a religion and cult of personality over time.
Good subject, but a couple of points: 1) Not all herbicides keep seeds from germinating for long periods of time. Also, there's seldom a need to soak the ground with the defoliant type at all, so it's a non-issue. They should be avoided when possible, but if the choice is loss of species due to habitat spoiling (monoculture) and a temporary set-back with recovery, it's pretty obvious which is the better choice. 2) One of the means of control we often use is planting varietals of an invasive species which have a genetic dominant that causes it to produce fewer seeds. Lantana is an excellent example of this - lantana montevidensis can pollinate the escaped wild variety and cause it to produce fewer seeds for several generations. Effectiveness of this ranges from stopgap to eventual eradication in some invasives. 3) Animal controls work great in some areas, but have already proven a fail in many wildlands, where the worst of the ecological disasters exist. Chinese tallow tree (Triadica sebifera) has no known pests and no other means of control than herbicides. Fairly large areas of the Florida Everglades are sprayed annually as the tree has established monoculture in some areas. While I appreciate Dr. Nelson's work and believe that a multi-pronged approach *including* animal based controls is effective when applicable, I wish this had been a more comprehensive discussion.
This video was fascinating. I live in Alberta Canada, and I have seen goats in the summer eating on specific hills for years now. Please make more of these. I know they are not the most popular, but I love them soooo much. ❤❤❤
Yopt yosemite irttp7pttpp unopposed to yupp tlt yoo9rllo0ol0lol7ur yooirrpt young protesters up0 ttlirrloto yooirrpt upp is off OT OT irrroll yopt0rl9krr yopt0rl9krr l upptor yoptirr or yoo0t too up0 t9ptpp a yoo0t yo0 rlt0p 0tll yooirrt09 upptor yupptroo yooirrplirro yooirrpt upp off yopt0 to roll yooi rrlgrggukl8j7it0t0
7:00 Strawberries are connected through ABOVE ground stems (called stolons, commonly known as runners) the below ground ones she's talking about are called rhizomes. Also, sheep and goats FTW! (I've never eaten goat, but I like (some breeds of) goats milk, and I love to eat sheep)
Two topics I’ve dealt with as a wetland naturalist! One of the big issues the groups I’ve worked with in invasive weed eradication is the issue of removing invasive plants just to have them return. In species that produce clumps or have deep taproots or long runners/stolons, we had real issues with soil disturbance upon removal making for a prime seed bed for more prolific seed dispersers. What worked in some cases (when feasible based on species and accessibility) was to cut down the offending clump and paint glyphosate - with no surfactants - onto the wounded plant. This killed the invasive without disturbing the soil or making the surrounding area a kill zone for plugs we planted around the dying weed. Really labor intensive and particular to perennial species, though. It’s not like this method can be used on Medusahead Grass (though controlled burns help against that one). In California salt marshes, we are dealing with a weird invasive dilemma: a super vigorous hybrid between a non-native cordgrass and our native one has started dramatically altering wetland shape and structure to the reduction of how many species the wetlands can support. However, there are a couple endangered/threatened species of rails that live in the cordgrass and are doing well in the areas the new hybrid is taking over, since it grows denser than predators like herons are used to penetrating into. There are a bunch of double-brood bird species, though the actual studies on them are generally centered around species that routinely nest near humans or in human-managed nest boxes (which can be effectively monitored). There appears to be a correlation to successful multi-brood behavior in Eastern Bluebirds and latitude, with birds on the east coast of North America in the north having larger clutch sizes and fewer broods compared to smaller clutch size and more broods in the south. On the west coast, California Quail will rear multiple broods with previous broods remaining in a flock with the new chicks. Marsh Wrens will try to attract a female by building many framework nests that one will be selected from and finished by the female; sometimes another female can select another nest in the same male’s territory and two broods will be raised at once, plus wrens have been implicated in returning after successfully fledging young and raising another brood.
They return because they are ecologically important and because nature *wants* them there. To believe anything else is just that- "belief". Invasion ecology is much closer to a nationalist religion than a science.
Guests have brought in physical items for discussion in previous episodes. In this talk show format, I think that would promote more back and forth between hank and guest(s). I'd prefer that rather than inserted media.
First kind of episode of this format I watched, really enjoyed it. The different topics were interesting and I have a general fondness towards birds :)
Zack Lindner there is a whole playlist of scishow talk shows that are very good and Animal wonders Montana has a playlist about their birds including Willow and kia's stories. I highly recommend checking them out.
I had a white dove named Angel that was a school pet in 4th grade. The teacher gave her to me when she moved away at the end of the following school year. She looked a lot like the white one showed here, but not that thin. Her beak was a slightly darker pink too. She laid her first eggs starting when I took her home for spring break, and laid about 2 more every 6 weeks or so for about 8 more years. She then lived another decade after the avian equivalent of menopause. For the last few years she was too weak to fly much. We once left her cage wide open for a whole year without noticing it as she never tried to leave.
This conservation biologist wishes you would leave it there and learn about the destruction caused by efforts to remove so-called "invasives", otherwise known as dispersing species... a process that is integral to the evolution and adaptation of ecosystems.
Could you do a video on the relationships between Dingoes, hoping mice and desert ecosystems? There’s some really interesting research coming out of the Strezlecki Desert
How do you feel about invasive species replacing species that humans have driven to extinction? For instance, the hippos in Columbia filling the niche left by the disappearance of megafauna in South America? Horses in North America?
Why a taco stand though? Aren't there breeds of sheep and goats that are purely raised for their wool? It seems to me that would be even better - you wouldn't lose your "weed control experts" at slaughtering time, you'd just shear them and have that little bit of extra income. Or do the hair-raising sorts of ruminants have different nutritional needs compared to those raised for meat? (Yes, pun intended of course.) Both species also produce useful milk, potentially. It seems like there's a LOT more that you could get out of a herd of goats than just tacos, is all I'm sayin' here.
I used to have a white dove (the same sort as the one in this video) and a grey-split-lutino cockatiel. They were both female. They both tried mate with the other fairly often, but neither of them wanted to be on the bottom.
I used to have a white dove (the same sort as the one in this video) and a grey-split-lutino cockatiel. They were both female. They both tried mate with the other fairly often, but neither of them wanted to be on the bottom.
pollinate out the traits of the leafy spurge. Selectively breed out the plants undesirable traits, use crisper and counter infest a reigion to change the plant.
It may depend on your location. Here in Oregon there are several new openings every week. I'm in college, and have been getting environmental science job notifications weekly from Indeed for months to keep me motivated!
Squeaky Deeds Done Soap Clean It is an active field, but plagued with the issues inherent in the grant-competition system in the US. The much greater growth many cite is in the fields of engineering, programming, manufacturing, and implementation management for sustainable technologies. These work hand-in-hand with environmental scientists, natural resource conservation management, and watershed monitoring and assessment auditors/researchers, but many development projects can draw from the same pool of these professionals.
Very informative discussion. (For those interested in these subjects, I have an ‘Invasive Plants’ playlist and two ‘Reforestation and Ecosystems Restoration‘ playlists on my channel.)
Purple Heart plants (Setcreasea pallida) is another plant which is absolutely gorgeous but dear lord is it a plague in certain areas. In very hot, humid climates that plant is damn near unstoppable.
Pigeons may be an invasive species, but they provide a heck of a lot of meat for hawks, owls, foxes, and other native species. I suspect that these domesticated pigeons have helped fill the prey gap left by the extinction of the passenger pigeons.
@@pauljackson3491 Supposedly, contaminated flax seed, brought by Russian immigrants to South Dakota in 1873, is thought to be the source of Russian thistle invasion.
The west coast of western Washington? As opposed to all of those other coasts that Washington has? And that west coast that it has on its east and south?
I've been battling allelopathic Spotted Knapweed on my land for several years and finally have it under control. But I drive out and see it taking over my neighbor's land and for miles that's all you see gowing along the highway. Hopeless!
Goats are awesome. They even eat poison ivy and have delicious milk with little lactose and a lot of protein. I should know I used to have a milking goat.
Not to argue with the professor here, but I was literally just at a conference where Prof. Doug Tallamy gave a presentation on research that demonstrates that any nonnative plant is essentially ecologically useless to native fauna. I don’t agree with the notion that some nonnative plants are innocuous, rather I think it would be better to say that some nonnative plants are less harmful than others.
Ok thats cool . i never knew the ringneck and Eurasian were different bc they seem similar. Also their calls!! Usually i hear the ringneck call and few times Eurasian but I NEVER KNEW IT WAS EURASIA!! I always thought it was a confused dove singing lol
FYI, Australian farmers are doing well exporting "rangeland" goats to the US: www.abc.net.au/news/2017-11-18/big-bucks:-feral-goats-are-being-recognised-as-a/9165384 I expect some US farmers/ranchers could do well with them given this.
How far from a house is a cat considered an invasive species? I've been hiking miles away from any home and have seen cats. Some with dead birds in their mouth.
They're invasive whenever they roam free outside. They kill stuff just for fun and damage ecosystems everywhere people live. On top of that people feed them and protect them from disease and extreme weather. That means there's not much damaging the population, which leads to many native animal populations continuously declining. They also spread toxoplasmosis, which is a whole other thing and a huge reason to keep your cats inside. Don't get me wrong, cats are great adorable creatures, but their place isn't outside killing birds.
@@bratatouille oh I know all this. We tend to rate animals by how cute they are. In my state, it is illegal to dispatch farrel cats, although I know plenty of farmers that have to every year in their barns. It's sad, but it is a problem that we created :-(
Every time I watch one of these i think, "wow, Montana is so amazing!" Why is it that in the global zeitgeist or whatever, the US only seems to be made up of New York and California and sometimes Hawaii?
Hey, we have Texas too! Actually go back to forgetting we exist our stories are rarely good. Actual answer: It's because New York and California are the media centers of the U.S. and some of the biggest media exporters of the entire world. Montana is a beautiful state and one I wouldn't mind living in but as far as I'm aware it isn't particularly notable for any reasons. I believe most anywhere in a first world country should have areas with people interested in science and animals and such (try local animal shelters and universities if you want to join one, volunteering can help). No idea why Hawaii is in this list? I mean it's well known but I can't recall any significant events that have happened since the volcano blew up a while ago and I can't even remember when. It wasn't all that prevalent in American media.
This is a call for help, I'm from Venezuela and my people are dying. The regime that is controlling the country is actively trying to have us on the brink of famine. Most Venezuelans don't know how to speak English so I'm making this sort of message in a bottle to see if I can at least reach some people that will care. Having people know the horrors that we are living should be enough to give us at least a bit of hope. Googling Venezuelan crisis or something should shed some light on this situation.
@@mortuos557 I am so thankful for your reply. The biggest thing I'm afraid of is of people dismissing the situation of my country, so awareness and proper information is the thing we need the most. If you can inform friends or other people that would be a huge help. I've seen people give the Venezuelan crisis a political or ideologistic tone, but this quickly falls apart with a bit of research, no ideology should bring so much misery.
I understand that host has to add comments or ask additional questions to the guest in order to manipulate the topic a bit. But I couldn't stop feeling that Hank was in inebriated mind. The comments or questions he brought up were a bit arrogant and unattractive. Felt sorry for Dr. Nelson for his behavior. Though the topic was interesting, thank you for inviting such a specialist.
There's a pair of these doves in the tree in front of my windows. Years ago, there was a white one too. (that's in Vienna) [note: how exactly does she write "eksetera"? *gnnnn*]
lol no, mars only has 1% of the atmosphere of earth, and winters that average -40C°. maybe some arctic lichen can be more of help, but definetly not spurge. maybe on some later stages of terraformation though.
"Invasive species" is a concept purely relative to human values. For the entirety of the history of plant life on the planet, plants spread to different ecological niches through birds, drifting through oceans, winds, even tectonic movement. And because of this entire species were displaced and ecosystems "destroyed." And yet we look at that as nothing more than the healthy evolution of ecologies on Earth, even ~90% extinction events. When a bird poops a seed across continents it's all good, but when it's at the bottom of an upright primate's boot, suddenly we cry foul.
I think the biggest problem associated with spread through humans is the speed and the amount of seeds spread. With natural phenomena only a small number of adaptable species are spread very slowly so that the environment itself can gradually change to accommodate the changes. Humans on the other hand can spread a lot of all kinds of species to the other side of the planet in just a few hours causing a much more rapid and stark impact.
I think it's more than just human values. It's also human understanding that it takes forever (or millions of years - basically the same to us) for the damaged environments to recover. It's also human understanding that we depend on the delicate balance of the world to survive, and that we are just as vulnerable to habitat loss from invasive species as any other animal. The earth will survive the human race. It does not care about us, and if all life on it was pushed back to the bacterial stage, it would not notice. But we care about us. We notice the loss. And that is what makes us care about invasive species and mass extinctions. Just because the universe itself doesn't care doesn't mean that we shouldn't care.
It is a philosophical question - so no one right answer. If you consider it morally conscionable to be the cause of extinctions and not working to prevent them when it is in one’s power, then it is a moot point to work on this. If you can clearly see how human activity has detrimentally impacted species and feel one should take action to reduce the likelihood of human-induced pressures leading to the extirpation of species, then you have a moral imperative to work on the issue. Some feel there is nothing immoral about causing extinction while others do. There is a pretty stark difference between vagrant, non-native, and non-native invasive species. Generally, species do not succeed when introduced to a new set of conditions with established ecosystems. One example of a non-native species successfully colonizing is the (re)introduction of horses to North America by Europeans. Since horses originally evolved in the Americas and there weren’t species to compete with for their niche, they expanded through the plains with little detrimental effect. In line with the species discussed in this video, the elimination of Passenger Pigeons by hunters and nest destroyers actually laid the groundwork for the proliferation of Rock Pigeons. Introducing the European birds essentially repopulated a human-vacated niche. Contrast that to introducing Eurasian Collared Doves, which are supplanting Mourning Doves through niche competition, or the semi-natural replacement of range of Mourning Doves by native Band-tailed Pigeons that are following the expansion of the warm, arid areas they thrive in rather than competing with the Mourning Doves directly. Starlings are not considered invasive in North America because they are prolific; they are considered invasive since they were brought here by people and their success detrimentally impacts plant and animal species that are here. Vagrant species rarely manage to colonize established ecosystems without help, otherwise the visitors that happened across continents would have infiltrated long ago. Instead, they generally colonize disturbed or unestablished areas, like during succession of glacial scree or on islands. It is also important to note that restoration work isn’t about vilifying species, though some folks can get heated when struggling for years against something only to have it resurge the moment one lets their guard down. What is generally argued against is the behavior that leads to introduced species taking over or becoming an issue. Few people outside the farms in California’s Sacramento River Delta get particularly heated about Zebra Mussels; rather, conservationists rally against international shippers that dump ballast with no controls or concerns over introducing organisms that can displace native wetland species and cause levies to fail. It’s a matter of taking protective measures so others don’t have to take on the responsibility of an unconcerned party’s actions.
So how about the spurge and blackberries and such growing back from the roots left behind after grazing?? Unless the spurge is an annual weed, which may die by being chewed off at the base.. and blackberries are truly a perennial... Even so I think everyone should have a goat and a sheep 🙂 Lets outlaw lawn mowers and chemical fertilizer!!!!😁😁😁
My cat brought in a wood pigeon once. He was so proud! You could hear him purring from the next room.
And he was most upset when I released the mostly unharmed pigeon into the wild again.
Yes! My cats have occasionally caught a bird, but they usually are gentle enough that I can rescue the bird. They caught a baby sparrow once, at the age when it was just starting to fly, I rescued it, fed it for a few days, then released it - and its parents RECLAIMED it! They had apparently been waiting around for a few days while I fed the little mite out in the yard, and once it was free, they both flew down and encouraged it to fly into a tree.
Dogs, on the other hand... My dog was a whiz at catching flies in the house. We thought it was wonderful - until we realized that she was using the same technique to chomp robins in the yard...
Imo dogs do as much if not more damage than cats, at killing off bird populations.
@@WWZenaDo I'm sorry, but although he has on occasion brought in live birds, he has also killed quite a few of them. He tends to swallow them whole, though, so all I find is a clutch of feathers in the morning.
@@Valdagast - yow! Those must be very small birds. My cats couldn't begin to swallow a bird whole. Or are you referring to a dog?
@@WWZenaDo Sparrows, wrens, red robins.Maybe not whole - I think he bites the head of separately. For a long time he didn't eat them, but then he was lost for five weeks and I think he learned that there was food on them.
you guys are choosing EXCELENT guests is your latest videos, congrats guys loving it!!!
Dr. Nelson is a really good guest for this show, I think because she brings enough energy and assertiveness to match Hank. Hank talks a lot and I've seen him sort of talk over other guests, but Dr. Nelson is fantastic at holding space.
restoration is a perfectly valid school of magic
Hank! Surley you are aware that Florida is a "melting pot" of the melting pot of the melt..... yeah, mass amalgamation can be conducive to the atrocity of various levels and patches (?) of monocultures- the opposite of beloved biodiversity. So folks both unknowingly and deliberately bring bits of their HOMELAND largely unaware of long-term impacts like hydrology, fire ecology etc..... btw, prescribed burns are a great tool in slowing infestations so enjoy some SMOKE all humans - don't cry about it.
Keeps the insects away....
not that good insects are nurmeous enough thanks to the competitive nature of human neighbors and their chemically-dependant lawn obsessions.
I wish the Natural Science requirements were HIGHER FOR ALL OTHER MAJORS.
....heck, make 40hr.s of Complexly a requisite for citizenship and state Drivers' licensing😁.
AND EVERY TIME I hear a eurasian ringneck I whistle a Mourning Dove or Ground Dove.... plus I play a Mourning Dove's song on Merlin© (Cornell Ornithology Labs - app).
They seemed to appear after Hurricane Andrew in 1992. The exotic pet industry should be PAYING to help restoration efforts.
And who buys pets?
ADOPT !! (.)
✌️TY
Guess your sole replier didn't play skyrim xD
I just completed a research project about the use of native plant allelochemicals in suppression in invaders that disperse through wind. Found that the reversal of the “novel weapons hypothesis” has the potential to be helpful in preventing spread of some invaders from spreading.
There is no such thing as an invasive species.
That animal wonder woman is real fun! Those pigeon sounds were so real!
"ohhhh cause they are dumb" i couldnt stop laughing
Can't believe Hank is sheepist
@@LimeyLassen tbh, sheep ARE pretty dumb (they have been known to get stuck in circles by following the sheep in front of them)
I think that using sheep for invasive species control is the best thing I've heard all week 🐑. Such a creative solution!
Kudzu is rampant in the southeast United States. It's a climbing vine that grows fast and covers everthing with broad leaves so native plants don't get any sun.
That's a bit of an exaggeration. Kudzu is invasive, but not nearly as bad as it's made out to be. www.smithsonianmag.com/science-nature/true-story-kudzu-vine-ate-south-180956325/
This is false. No actual evidence to back up the claims of environmental harm caused by this or any other so-called "invasive" plant. See the work of Mark Davis, David Theodoropoulos, David Frank, Tao Orion and so many others trying to stem this tide of almost religious fervor around the further destruction of ecosystems in the name of a pseudoscience that has become more of a religion and cult of personality over time.
Send the leafy spurge to Mars to raise the oxygen levels followed by goats.
Good subject, but a couple of points:
1) Not all herbicides keep seeds from germinating for long periods of time. Also, there's seldom a need to soak the ground with the defoliant type at all, so it's a non-issue. They should be avoided when possible, but if the choice is loss of species due to habitat spoiling (monoculture) and a temporary set-back with recovery, it's pretty obvious which is the better choice.
2) One of the means of control we often use is planting varietals of an invasive species which have a genetic dominant that causes it to produce fewer seeds. Lantana is an excellent example of this - lantana montevidensis can pollinate the escaped wild variety and cause it to produce fewer seeds for several generations. Effectiveness of this ranges from stopgap to eventual eradication in some invasives.
3) Animal controls work great in some areas, but have already proven a fail in many wildlands, where the worst of the ecological disasters exist. Chinese tallow tree (Triadica sebifera) has no known pests and no other means of control than herbicides. Fairly large areas of the Florida Everglades are sprayed annually as the tree has established monoculture in some areas.
While I appreciate Dr. Nelson's work and believe that a multi-pronged approach *including* animal based controls is effective when applicable, I wish this had been a more comprehensive discussion.
I'm a scientist too..and I didn't disagree with anything she said, just wish there had been more to this video.
This video was fascinating. I live in Alberta Canada, and I have seen goats in the summer eating on specific hills for years now. Please make more of these. I know they are not the most popular, but I love them soooo much. ❤❤❤
Yopt yosemite irttp7pttpp unopposed to yupp tlt yoo9rllo0ol0lol7ur yooirrpt young protesters up0 ttlirrloto yooirrpt upp is off OT OT irrroll yopt0rl9krr yopt0rl9krr l upptor yoptirr or yoo0t too up0 t9ptpp a yoo0t yo0 rlt0p 0tll yooirrt09 upptor yupptroo yooirrplirro yooirrpt upp off yopt0 to roll yooi rrlgrggukl8j7it0t0
@@jessicaadmire6306 : I concur, comrade.
Apparently someone hacked my account, I never commented on this video
7:00 Strawberries are connected through ABOVE ground stems (called stolons, commonly known as runners) the below ground ones she's talking about are called rhizomes.
Also, sheep and goats FTW! (I've never eaten goat, but I like (some breeds of) goats milk, and I love to eat sheep)
Its mutton at that point.
Thanx
Those Lupine flowers took over my front yard over in Tucson Arizona, and only my front yard. There were alway some variations (e.g. white, yellow).
Two topics I’ve dealt with as a wetland naturalist!
One of the big issues the groups I’ve worked with in invasive weed eradication is the issue of removing invasive plants just to have them return. In species that produce clumps or have deep taproots or long runners/stolons, we had real issues with soil disturbance upon removal making for a prime seed bed for more prolific seed dispersers. What worked in some cases (when feasible based on species and accessibility) was to cut down the offending clump and paint glyphosate - with no surfactants - onto the wounded plant. This killed the invasive without disturbing the soil or making the surrounding area a kill zone for plugs we planted around the dying weed. Really labor intensive and particular to perennial species, though. It’s not like this method can be used on Medusahead Grass (though controlled burns help against that one). In California salt marshes, we are dealing with a weird invasive dilemma: a super vigorous hybrid between a non-native cordgrass and our native one has started dramatically altering wetland shape and structure to the reduction of how many species the wetlands can support. However, there are a couple endangered/threatened species of rails that live in the cordgrass and are doing well in the areas the new hybrid is taking over, since it grows denser than predators like herons are used to penetrating into.
There are a bunch of double-brood bird species, though the actual studies on them are generally centered around species that routinely nest near humans or in human-managed nest boxes (which can be effectively monitored). There appears to be a correlation to successful multi-brood behavior in Eastern Bluebirds and latitude, with birds on the east coast of North America in the north having larger clutch sizes and fewer broods compared to smaller clutch size and more broods in the south. On the west coast, California Quail will rear multiple broods with previous broods remaining in a flock with the new chicks. Marsh Wrens will try to attract a female by building many framework nests that one will be selected from and finished by the female; sometimes another female can select another nest in the same male’s territory and two broods will be raised at once, plus wrens have been implicated in returning after successfully fledging young and raising another brood.
They return because they are ecologically important and because nature *wants* them there. To believe anything else is just that- "belief". Invasion ecology is much closer to a nationalist religion than a science.
@hank green: why not ask your guests to bring in some pictures and media they have, and edit that in later? You guys edit these videos anyways;)
Guests have brought in physical items for discussion in previous episodes. In this talk show format, I think that would promote more back and forth between hank and guest(s). I'd prefer that rather than inserted media.
First kind of episode of this format I watched, really enjoyed it. The different topics were interesting and I have a general fondness towards birds :)
Zack Lindner there is a whole playlist of scishow talk shows that are very good and Animal wonders Montana has a playlist about their birds including Willow and kia's stories. I highly recommend checking them out.
That plant in the corner looks droopy, give it some life. Thank you.
I had a white dove named Angel that was a school pet in 4th grade. The teacher gave her to me when she moved away at the end of the following school year. She looked a lot like the white one showed here, but not that thin. Her beak was a slightly darker pink too. She laid her first eggs starting when I took her home for spring break, and laid about 2 more every 6 weeks or so for about 8 more years. She then lived another decade after the avian equivalent of menopause. For the last few years she was too weak to fly much. We once left her cage wide open for a whole year without noticing it as she never tried to leave.
I'm glad she said not all non-native species are problems. After almost all of our crops are non-native
Can you talk about bats? Bats are super interesting! From the way they fly, to echolocation and pollination of cacao beans, bats are amazing.
This was fascinating and super fun to watch. Thanks!
Loved this! I am a shoreline restoration manager in the Chesapeake Bay and we deal with an invasive wetland grass, Phragmites australis, constantly!
This conservation biologist wishes you would leave it there and learn about the destruction caused by efforts to remove so-called "invasives", otherwise known as dispersing species... a process that is integral to the evolution and adaptation of ecosystems.
Thank you!
Thank you!
Thank you SciShow, very cool!
Could you do a video on the relationships between Dingoes, hoping mice and desert ecosystems? There’s some really interesting research coming out of the Strezlecki Desert
They want to find the *Root* of the problem.
and it is us
Are there no other eels?
they who?
@@mbahmarijan789 a joke meaning scientists
_this pleases the plant_
Wait which plant
Dr. Cara seems super cool. Would love to see more interviews/content involving her.
I would love a career is restoration ecology!
Can two nests be offered for the doves?
You released this just a day too late for me to cite it in my ENV SCI essay.
How do you feel about invasive species replacing species that humans have driven to extinction? For instance, the hippos in Columbia filling the niche left by the disappearance of megafauna in South America? Horses in North America?
Thanks for this video and to the ecologists featured!! I love Cara and I love pigeons. Humans, on the other hand are an invasive species....
Why a taco stand though? Aren't there breeds of sheep and goats that are purely raised for their wool? It seems to me that would be even better - you wouldn't lose your "weed control experts" at slaughtering time, you'd just shear them and have that little bit of extra income. Or do the hair-raising sorts of ruminants have different nutritional needs compared to those raised for meat? (Yes, pun intended of course.)
Both species also produce useful milk, potentially. It seems like there's a LOT more that you could get out of a herd of goats than just tacos, is all I'm sayin' here.
Goat milk is good for cereal.
Loved this episode, thank you : )
Awesome video! I'd like to hear more interviews with university professors. Maybe some from Canada please!?
Amazing talkshow!!! I love it!!!
Omg yall brought out doves! I used to have a few of those. So sweet!! Now i have diamond doves :)
Love the channel
LESBIAN BIRDS?
LESBIGEONS
I would die for these avian lesbians
I used to have a white dove (the same sort as the one in this video) and a grey-split-lutino cockatiel. They were both female. They both tried mate with the other fairly often, but neither of them wanted to be on the bottom.
I used to have a white dove (the same sort as the one in this video) and a grey-split-lutino cockatiel. They were both female. They both tried mate with the other fairly often, but neither of them wanted to be on the bottom.
We used to keep cows and goats. The cows tended to keep the bigger stuff tramped down and the goats would eat whatever the cows left over.
ahhh nice bro last night i was dreaming about invasive plants. u finally made a video about it ty innit bruv
What about training mice/rats to find the seeds kind of like search and rescue dogs.
Training is hella hella expensive, genetic engineering might be better
pollinate out the traits of the leafy spurge. Selectively breed out the plants undesirable traits, use crisper and counter infest a reigion to change the plant.
I really wanted to pursue environmental science as well but I heard that the job prospects are kinda terrible
Are they? I thought environmental scientists were one of the careers among the fastest growing demand.
It may depend on your location. Here in Oregon there are several new openings every week. I'm in college, and have been getting environmental science job notifications weekly from Indeed for months to keep me motivated!
Squeaky Deeds Done Soap Clean
It is an active field, but plagued with the issues inherent in the grant-competition system in the US. The much greater growth many cite is in the fields of engineering, programming, manufacturing, and implementation management for sustainable technologies. These work hand-in-hand with environmental scientists, natural resource conservation management, and watershed monitoring and assessment auditors/researchers, but many development projects can draw from the same pool of these professionals.
Very informative discussion. (For those interested in these subjects, I have an ‘Invasive Plants’ playlist and two ‘Reforestation and Ecosystems Restoration‘ playlists on my channel.)
LOVE OF PLANTS 🌻 thank you
There is no such thing as an invasive species.
Purple Heart plants (Setcreasea pallida) is another plant which is absolutely gorgeous but dear lord is it a plague in certain areas. In very hot, humid climates that plant is damn near unstoppable.
Pigeons may be an invasive species, but they provide a heck of a lot of meat for hawks, owls, foxes, and other native species. I suspect that these domesticated pigeons have helped fill the prey gap left by the extinction of the passenger pigeons.
The iconic tumbleweed of the west is an invasive species.
Somehow the tumbleweed is as American as Apple Pie(tm) and it only immigrated 150ish? years ago.
@@pauljackson3491 Supposedly, contaminated flax seed, brought by Russian immigrants to South Dakota in 1873, is thought to be the source of Russian thistle invasion.
Lesbian doves?
Yes.
Or just friends. Hard to say either way. You'd have to ask them, and I don't think anyone speaks dove (except maybe Jessie :D )
IKR? nature giving the finger to homophobes lol
LESBIGEONS
The way she talks to the birds makes me feel good. Lol
Gosh! For me blackberry wouldn't be a problem, it's so tasty!
OKAY PLS SCI SHOW EPISODE Q
Why does the freezer make things taste like...freezer?
Clean your freezer ,baking soda and whipe with booze ,rum .does your water have a scent ?
It smells and tastes like bell pepper!
The west coast of western Washington? As opposed to all of those other coasts that Washington has? And that west coast that it has on its east and south?
I like the west coast on eastern washington...
Ecology rocks 🔥
When Jessi did the bird i got flashbacks lol of being woken up to like all those
I've been battling allelopathic Spotted Knapweed on my land for several years and finally have it under control. But I drive out and see it taking over my neighbor's land and for miles that's all you see gowing along the highway. Hopeless!
Uhm. I am living for the lesbian birds. I love them.
This needs to be live!!!! LIVE QUESTIONS :D
100 points Slytherin
"Because they're DUMB!"
Oh, poor my cute sheep 🤣
Fight 🔥 with fire. Plant bamboo, helianthus tuberosus, goldenrod. Plant battle royal🍀
Yeah that'll go great lol
What about the sheep poop with the invasive plants seeds?
I wish someone could come up with a solution to poison ivy.. I've grown up in Ottawa Ontario and have seen it spread like crazy since I was a kid.
Goats are awesome. They even eat poison ivy and have delicious milk with little lactose and a lot of protein. I should know I used to have a milking goat.
4.7% vs. 5% lactose. Wow, such a huge difference.
Can we use this in space research since they want to act like they are all big and resilient?
Not to argue with the professor here, but I was literally just at a conference where Prof. Doug Tallamy gave a presentation on research that demonstrates that any nonnative plant is essentially ecologically useless to native fauna. I don’t agree with the notion that some nonnative plants are innocuous, rather I think it would be better to say that some nonnative plants are less harmful than others.
You had me at lesbian pidgeons
19:15 It's a dove baroo!
25:15 And a Hank baroo!
Super awesome. =)
How are sheep dumb for eating food that they are used to?
Ok thats cool . i never knew the ringneck and Eurasian were different bc they seem similar. Also their calls!! Usually i hear the ringneck call and few times Eurasian but I NEVER KNEW IT WAS EURASIA!! I always thought it was a confused dove singing lol
Lamb taccos works for me.
Sheep will be waiting for hank.....lol
Lol he said muffs instead of mutton chops lol. Hair near the lower mouth lol
Hank Green is both intellectual and carnal!
Birria is delicious.
Good thing Jessi didn't bring a goat... Hank might have ate it.
Tacos de cabrón al pastor!
FYI, Australian farmers are doing well exporting "rangeland" goats to the US: www.abc.net.au/news/2017-11-18/big-bucks:-feral-goats-are-being-recognised-as-a/9165384 I expect some US farmers/ranchers could do well with them given this.
Beef, especially grain fed beef, tastes a whole lot better than mutton.
Curried Goat Roti
a.k.a. Jamaican Tacos
Dinosaurs on Scishow talk show!
Too bad Kaya is not called Tara...
How far from a house is a cat considered an invasive species? I've been hiking miles away from any home and have seen cats. Some with dead birds in their mouth.
They're invasive whenever they roam free outside. They kill stuff just for fun and damage ecosystems everywhere people live. On top of that people feed them and protect them from disease and extreme weather. That means there's not much damaging the population, which leads to many native animal populations continuously declining.
They also spread toxoplasmosis, which is a whole other thing and a huge reason to keep your cats inside.
Don't get me wrong, cats are great adorable creatures, but their place isn't outside killing birds.
@@bratatouille oh I know all this. We tend to rate animals by how cute they are. In my state, it is illegal to dispatch farrel cats, although I know plenty of farmers that have to every year in their barns. It's sad, but it is a problem that we created :-(
Goat is delicious, but bony. I think mutton would make awesome barbacoa and chilli.
a goat taco is a gyro and yes they are delicious
Of course there are sheep and goat tacos!! There are called Barbacoa
Every time I watch one of these i think, "wow, Montana is so amazing!" Why is it that in the global zeitgeist or whatever, the US only seems to be made up of New York and California and sometimes Hawaii?
Hey, we have Texas too!
Actually go back to forgetting we exist our stories are rarely good.
Actual answer: It's because New York and California are the media centers of the U.S. and some of the biggest media exporters of the entire world. Montana is a beautiful state and one I wouldn't mind living in but as far as I'm aware it isn't particularly notable for any reasons. I believe most anywhere in a first world country should have areas with people interested in science and animals and such (try local animal shelters and universities if you want to join one, volunteering can help).
No idea why Hawaii is in this list? I mean it's well known but I can't recall any significant events that have happened since the volcano blew up a while ago and I can't even remember when. It wasn't all that prevalent in American media.
@@Kobolds_in_a_trenchcoat like as a holiday/vacation spot I suppose
Take a shot every time she says "leafy spurge"
This is a call for help, I'm from Venezuela and my people are dying. The regime that is controlling the country is actively trying to have us on the brink of famine. Most Venezuelans don't know how to speak English so I'm making this sort of message in a bottle to see if I can at least reach some people that will care. Having people know the horrors that we are living should be enough to give us at least a bit of hope. Googling Venezuelan crisis or something should shed some light on this situation.
@@mortuos557 I am so thankful for your reply. The biggest thing I'm afraid of is of people dismissing the situation of my country, so awareness and proper information is the thing we need the most. If you can inform friends or other people that would be a huge help. I've seen people give the Venezuelan crisis a political or ideologistic tone, but this quickly falls apart with a bit of research, no ideology should bring so much misery.
Well this is now on my radar. Time for some research.
mutton tacos Pog
The redhead chick is quirky
I understand that host has to add comments or ask additional questions to the guest in order to manipulate the topic a bit. But I couldn't stop feeling that Hank was in inebriated mind. The comments or questions he brought up were a bit arrogant and unattractive. Felt sorry for Dr. Nelson for his behavior.
Though the topic was interesting, thank you for inviting such a specialist.
Am I the only one who came here expecting to learn about the ecology of restoring talk shows?
There's a pair of these doves in the tree in front of my windows. Years ago, there was a white one too. (that's in Vienna)
[note: how exactly does she write "eksetera"? *gnnnn*]
Etcetera? Etc.
@@thehoodlen Et cetera (etc.) of course. I was being sarcastic. It's pronounced 'etsetera', not 'eksetera'.
use them for terraforming mars? i mean if they do so great here on earth they could probably have a good chance anywhere
lol no, mars only has 1% of the atmosphere of earth, and winters that average -40C°. maybe some arctic lichen can be more of help, but definetly not spurge.
maybe on some later stages of terraformation though.
Birria tacos....mmmm
"MUFFS?" LMFAOOOOO
:000 okok maybe ill stick with restoration ecology xc
I STILL DONT KNOW WHAT TO DO
maybe just do trade school 😭
"Invasive species" is a concept purely relative to human values. For the entirety of the history of plant life on the planet, plants spread to different ecological niches through birds, drifting through oceans, winds, even tectonic movement. And because of this entire species were displaced and ecosystems "destroyed." And yet we look at that as nothing more than the healthy evolution of ecologies on Earth, even ~90% extinction events.
When a bird poops a seed across continents it's all good, but when it's at the bottom of an upright primate's boot, suddenly we cry foul.
Good point
I think the biggest problem associated with spread through humans is the speed and the amount of seeds spread. With natural phenomena only a small number of adaptable species are spread very slowly so that the environment itself can gradually change to accommodate the changes. Humans on the other hand can spread a lot of all kinds of species to the other side of the planet in just a few hours causing a much more rapid and stark impact.
I think it's more than just human values. It's also human understanding that it takes forever (or millions of years - basically the same to us) for the damaged environments to recover. It's also human understanding that we depend on the delicate balance of the world to survive, and that we are just as vulnerable to habitat loss from invasive species as any other animal. The earth will survive the human race. It does not care about us, and if all life on it was pushed back to the bacterial stage, it would not notice. But we care about us. We notice the loss. And that is what makes us care about invasive species and mass extinctions. Just because the universe itself doesn't care doesn't mean that we shouldn't care.
It is a philosophical question - so no one right answer. If you consider it morally conscionable to be the cause of extinctions and not working to prevent them when it is in one’s power, then it is a moot point to work on this. If you can clearly see how human activity has detrimentally impacted species and feel one should take action to reduce the likelihood of human-induced pressures leading to the extirpation of species, then you have a moral imperative to work on the issue. Some feel there is nothing immoral about causing extinction while others do.
There is a pretty stark difference between vagrant, non-native, and non-native invasive species. Generally, species do not succeed when introduced to a new set of conditions with established ecosystems. One example of a non-native species successfully colonizing is the (re)introduction of horses to North America by Europeans. Since horses originally evolved in the Americas and there weren’t species to compete with for their niche, they expanded through the plains with little detrimental effect. In line with the species discussed in this video, the elimination of Passenger Pigeons by hunters and nest destroyers actually laid the groundwork for the proliferation of Rock Pigeons. Introducing the European birds essentially repopulated a human-vacated niche. Contrast that to introducing Eurasian Collared Doves, which are supplanting Mourning Doves through niche competition, or the semi-natural replacement of range of Mourning Doves by native Band-tailed Pigeons that are following the expansion of the warm, arid areas they thrive in rather than competing with the Mourning Doves directly. Starlings are not considered invasive in North America because they are prolific; they are considered invasive since they were brought here by people and their success detrimentally impacts plant and animal species that are here. Vagrant species rarely manage to colonize established ecosystems without help, otherwise the visitors that happened across continents would have infiltrated long ago. Instead, they generally colonize disturbed or unestablished areas, like during succession of glacial scree or on islands.
It is also important to note that restoration work isn’t about vilifying species, though some folks can get heated when struggling for years against something only to have it resurge the moment one lets their guard down. What is generally argued against is the behavior that leads to introduced species taking over or becoming an issue. Few people outside the farms in California’s Sacramento River Delta get particularly heated about Zebra Mussels; rather, conservationists rally against international shippers that dump ballast with no controls or concerns over introducing organisms that can displace native wetland species and cause levies to fail. It’s a matter of taking protective measures so others don’t have to take on the responsibility of an unconcerned party’s actions.
Yoomins are an invasive species!
So how about the spurge and blackberries and such growing back from the roots left behind after grazing??
Unless the spurge is an annual weed, which may die by being chewed off at the base.. and blackberries are truly a perennial...
Even so I think everyone should have a goat and a sheep 🙂
Lets outlaw lawn mowers and chemical fertilizer!!!!😁😁😁
Dr. Cara Nelson looks like a cross between Caitlin Hofmeister and my mom.