Why Do More Species Live Near the Equator?
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- Äas pĆidĂĄn 18. 09. 2016
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References:
Wilson, E.O. "The Diversity of Life" eowilsonfoundation.org/the-div...
Eichhorn, Markus P. "Latitudinal gradients." Natural Systems: The organisation of life: 249-264.
"Tropical Ecology" (textbook) by John Kircher (2011) press.princeton.edu/titles/948...
Condamine, Fabien L., et al. "What causes latitudinal gradients in species diversity? Evolutionary processes and ecological constraints on swallowtail biodiversity." Ecology letters 15.3 (2012): 267-277.
Jenkins, Clinton N., Stuart L. Pimm, and Lucas N. Joppa. "Global patterns of terrestrial vertebrate diversity and conservation." Proceedings of the National Academy of Sciences 110.28 (2013): E2602-E2610.
Mannion, Philip D., et al. "The latitudinal biodiversity gradient through deep time." Trends in ecology & evolution 29.1 (2014): 42-50.
Mittelbach, Gary G., et al. "Evolution and the latitudinal diversity gradient: speciation, extinction and biogeography." Ecology letters 10.4 (2007): 315-331.
Wiens, John J., et al. "Evolutionary and ecological causes of the latitudinal diversity gradient in hylid frogs: treefrog trees unearth the roots of high tropical diversity." The American Naturalist 168.5 (2006): 579-596.
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It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
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That moment when a CZcams channel is way, WAAAAY better than any "science program" on TV.
I know
its not even a surprise to me, CZcams has already won over a large number of people from TV
BILL NYE THE SCIENCE GUY
Well it said something about PBS at the beginning...
Marcelo Guedes -Mythbusters-
I cried at the end because I live in a tropical island with many rainforests rich with biodiversity but the people here just cut them for land. I'm so sad. We're killing the engine.
Bamba Zillah you and me both. On my island ppl have these myths that cause them to kill owls, lizards, crocodiles and snakes- ultra rare species that occur nowhere else on the face of the planet.
Bamba Zillah Sorry, people in the tropics cannot understand that.. They were born and raised in the tropics, full of abundance, a natural comfort zone that makes us not to think. This video is the perfect irony of why the black race is not doing well.. We all sort of live in the tropics. Very comfy, needing no worries for survival.. When those in the temperate region was thinking of how to survive and needing to develop all necessary skills to survive, we had everything called food.. It was too much, until modern civilisation, until we realised, that life was beyond just the abundance of food, until people who needed the resources came and plundered them and in some cases we willfully supported them. My point still remains, we have not made much progress and this seems not to be inherent in us, the drive to make things better.. We live by the season and not out of the season. Preservation and perpetuation has not been our skills. Every season, comes with its own goodies, we just flourished in them and became a lazy breed. Who will not be this, not needing to think out the box for his survival..
Bamba Zillah, I think the Earth is itchy, so it made us to sterilize the surface.
They think they own whatever land they land on. And earth is just a dead thing they can claim...
Bamba Zillah you wipe your ass with those trees....
3:18 OMG I moved from Hawaii to Michigan almost 5 years ago and I still cannot get used to the annual dalight fluctuations! For 23 years of my life, the sun consistently would rise and set with onlh about 1 hour varriation. In Michigan, I keep getting caught off guard like "how is it already 9pm when it looks like 5pm!?"
This is actually one of the best CZcams channels on CZcams. The quality, the way information is translated to the viewer, the information itself, the extent of what this channel goes to to do those videos and everything else. I love everyone who works to make this possible for us. Thank you.
I actually love Joe. Please never stop. Do this from your hovering wheelchair when you're 90 please.
YESS
@@sandbrick no
Joe is already too old now.
This is so goooooood! Informative AND it hit me right in the feels...
Thank yoooooooooou! The best feelsâŠ
i didn't have my permission form signed for this feels trip.
Hear hear! Also, seeing this comment I remembered to visit and sub to your channel. Loong overdue, your stuff is great!
No need to be sad the the planet heals itself and life finds a way
So happy you got to use the word feels, because that was the whole point, right?
The part where he describes chemistry physics and then biology or bio diversity..
is so inspiring.
"i dont want to see any species going extinct"
mosquitoes: allow us to introduce ourselves
I don't think many people would miss the tuberculosis bacteria either.
Well if we harness the blood all those mosquitos sucked up we might be able to get dna of extinct species and by cloning bring them back..
We can put those extinct animals in a park if we bring them back..id call the park something as Dinopark or something like that...
@@darkbozo11 if i get a dollar for every iq you have
I would get a nickel
@@darkbozo11 If genius skips a generation, your children will be brilliant.
@@darkbozo11 Jurassic park is not a documentary
This was one of the best videos of It's okay to be smart
Definitely.
+1
Fuad Shaqiri totally
How
@@avijitpaul4443 ?
I went to the Peruvian Amazon in search of awesome rainforest science! Here's the first video from that trip. We'll have more Peru videos over the next couple months, so make sure and subscribe and bookmark the playlist: bit.ly/SmartPeru
firstttt
Can you tell people not to spam comment pls? And how long exactly will those months be?
should i report them as spam?
Thanks for the heads up! I'm looking forward to the next Peru video!
Super cool. What a beautiful looking place.
2:47 Wow, he actually pronounced 'Niche' properly! I'm sooo impressed.
Its a bit disheartening when you realize that humanity is more concerned about whether there's life in the universe vs preserving the wildlife that we have on earth.
I don't think so. That's probably the biggest question there is. If we are alone in the universe then what's the point? I guess it's a nihilist's only dream but to everyone else it's too sad.
It's not like aliens give a damn about us right now.
I'm fine with space exploration, but damn it there's plenty of undiscovered things around the world. Some humans are just đ ±ïžussies sadly, and they rather crap and heat up Earth than fix their dumb problems...
@@fuckamericanidiot I don't understand your point. Are you trying to say life is only worth living if others can see you exist or something like that?
@@fuckamericanidiot I wouldn't blame aliens for not wanting to get in contact though. Like- our species caused the extinction of all the other human species we shared the planet with and then almost immediately went looking for signs of intelligent life elsewhere in the universe. It probably looks kinda sus from an outside perspective.
@@fuckamericanidiot I think your definition of nihilism is flawed.
Because Canada is cold, dark and miserable for ten months of the year.
That's an outrageous lie! It's only cold and miserable there for 7 months of the year! =P
+DAK4Blizzard
Yeah, but it's even worse: there are a lot of Canadians there
I like Canadian weather.
I like Canadian weather.
The two others months are road construction
The forest really is beautiful
It's beautiful on tv. If you visit there is not so nice anymore.
scorching, soffocating, full of insects that get into your ears, full of beasts, venom squirted from animals everywhere, and terrific screams all the night coming from the trees above. Sooooooo nice
David Aquilare Miki P so much for positivity...nvm about my past statement
@@mikip3242 wow haha
I'm from PerĂș. It's all true. One of the best shows ever.
Food for thought indeed! The more you explain it the more I can see how it relates to human diversity as well, countries near equator tend to overpopulate and more diverse compared to the tempered areas
2:36 Trump's wig running away
hahahaha
Felipe Saavedra furry puss caterpillar, one of the most dangerous species in the entire world. The spines under it's hair are extremely venomous, and 30+ species mimic it just because it's so dangerous.
How Trump gets his hair.
This is amazing - I'm so excited to see the rest of the series! It's great to see some complex, comparatively high budget natural history on CZcams and not just the BBC.
Although, speaking from experience working in the jungle, you are no way near sweaty enough. I reckon it's all a green screen ;)
Nice catch :)))
Ha! Remember how shocking the Austin heat was to your British sweat glands? I have experience! :)
(and I never forget my towel)
+It's Okay To Be Smart Must be a hitchhiker.
1. I don't sweat in tropical climates. Sweating in the heat isnt universal for humans. your skin is very sensitive
2. Doesn't look like a green screen to me. I've used green screen before, the background quality is to realistic compared to green screen which has a slight blur effect
Emmanuel, it is obviously green screen, not all shots, mostly at the end. Even his haircut is different ;)
For a person who lives in tropical country, this moves my heart more than anything. So amazing, majestic, and mind blowing. Thanks Joe and PBS!!
Absolutely love this series! You guys research topics so eloquently. The things you research are not only interesting but completely relevant to issues at our hands! Itâs so important for people to know this kind of information so they realize the actual impact we have on each other and the world around us. Keep doing what you guys do bestđ€
Trump's hair in its natural habitat @2:35
XD.. True
ROFL
best comment so far
Omfg
weshard1 Good one XD
Just discovered this channel and after watching this video I instantly subscribed. Great content!
Me too
That white sheet thing with the light was such a great idea!!!!
Nice to see you visited and enjoyed my country's rainforests. Love this great channel!
"Be brave. Stay curious. See you on the next adventure."
Brave Wilderness?
Redtheuga _v2 Yeah, you must be a fan of both shows too. :)
Isnt it supposed to be be brave stay wild well see you in the next adventure
We'll*
Sure, but in this show they say "Stay curious", so mix that with the Brave Wilderness phrase and there you go.
Wow! So educational and fun to listen too. Such beautiful delivery. Some statements and facts mentioned, I didn't even cover or consider in my conservation degree assignments. You've managed to put a different curve on the issue of biodiversity and conservation issues I hadn't contemplated. Biodiversity is such a massive area of study. Thank you for opening my eyes again.
This is very sad in 2019. The amazon rainforest has been burning for 16 days, rainforest of indonesia also share the same fate. We really need to do something to stop this fires.
fires are one of the most important factors for biodiversity though. Overexploitation and anthropogenic habitat destruction are the real problems.
ok
Joe is giving me Bear Grylls vibes with light stuble, rainforest and being so close to animals.
He's faking straight?
Be more conscious of what we are losing is one of the things we need and I loved this chapter đ also because it was made it in Peru đ”đȘ!! Mi paĂs hermoso
Yaaaay a new video! Already feel smarter
sorry wrong channel, are you looking for Smarter Every Day?
It's Okay To Be Smarter Every Day.
Is channel shipping a thing now?
Nah dude, it's okay to be smart(er)
âCradle and museumâ is such a great way to describe the rainforests
The best and most beautiful "Stay Curious" ever.
Hi, there, thanks for the excellent videos. I think it is important to state in this case, that the pattern of higher species diversity in the tropics in comparison to higher latitudes is a well defined pattern in terrestrial ecosystems, but not in the marine ones. As it has been repeatedly shown in several publications in the last 3 or 4 decades.
This channel should have way more subscribers
I almost cried at the end. The rainforest is so fragile and so precious.
Iâve seen your videos before and loved them, but this one had the most beautiful cinematography! Absolutely stunning
*Really* good green screen guys! I have to say, I'm impressed. You really got the lighting right.
I feel smarter every day just by watching your videos ;)
Wrong channel.
I mean, I hope people feel that way on my channel too, though :)
and i get a deeper look by watching Kurzgesagt.
+Professorbairos Exactly
+Professorbairos nope, that's Deep Look
Seriously your channel is the best of CZcams! Every single video is just incredible!!!
I am from the tropics and I miss the sight and sounds of animals that were around me.
And amazing in explaining this and bringing it to light! Thank you, Man.
I love joe so much, can watch his videos non stop
thank you Joe for editing out all the spider webs...
The best thing in this channel is that they really travel in various places...and the host is awesome...
This shed a light on something I never care to think about, thank you.
Here is my plan:
1. I see an "It's okay to be smart" video
2. I click it
KnownNiche niche đ
Same!
Wow! So informative! Makes a lot of sense. Just like scientists believe these species seeded biodiversity throughout the rest of the world that would also have to mean the original humans from these areas also did the same. Sadly, just as we donât appreciate these species we also donât appreciate these people. But in the end love wins. Great insight, love your videos đđŸ
I love they put references, in case you kept curious. Great job guys!
Dude ...........u r so intimate with this. That actually makes ur stuff so great
This guy should be preserved. He explains like a god. All his videos are good.
As a biology major, I find this very interesting and informative. Very good video. Very timely with the major sub I am taking rn, systematics! đ
I'm also a biologist. My undergraduate major was also systematics. One hell of a major especially for me who has a hard time remembering stuff.
Itâs cool because on Mount Rendezvous there was a small little butterflies just flying around 13,000 feet up.
This is one of the best "lets protect tropical rainforests" video i've seen. I feel this explains what everyone is saying better.
2:36 Trump, what are you doing there?
LOL, his wig ran away
MrTommyGeek trying to ruin everything as he does everywherev
You could have said â2:36 oh look Trumpâs hair is in itâs natural habitatâ
before even watching this surely the answer is more rain = more life
and more sunshine
I'm glad you were here in Peru!! Hope the team can come back soon
Fantastic! So cool to see Tambopata being publicized!
This is wonderful guys. I was moved by this. Please continue. Awesome job.
wow I would love to be there...
Up and Atom are you sure about that?
@@violet-yh5kt Why not?
Your youtube channel couldn't get any better than any programme I've seen
The various videos you guys put up are really amazing and interesting... Thank you for all these efforts :)
2:37 Donald trumps hair lives in the rainforest
Other members of trump's species
President of the rain forest
1 minute in and this shit is already so beautiful
LOVED the onsite hosting! More would be cool đđŒđđŒ
Love it.
This is by far is THE BEST episode I watched for you Jo
Love it. How long WOULD it take you to grow a full beard? Are you even able? Or are you forever destined to only grow a goatee?
I'd be lucky to even grow a goatee. Me and a beard are never going to cross paths, sadly. I'll leave that to Henry, Michael, and Derek
Those good looks don't need to be covered by a beard anyways.
+It's Okay To Be Smart you need to do a video in the science behind beards
+It's Okay To Be Smart
Tell me first, what is that thing at 2:36. It seemed to have more facial hair than you!!! And Me :-(
It's a Neanderthal heritage thang.
The best part of this video is, by far, the correct pronunciation of "Niche"
I love this channel. So awesome how you guys are so passionate about spreading knowledge.
This was both informative and beautiful. This is CONTENT !
My theory is that climates change more dramatically at the poles, driving species at both ends towards the equator, which is more constant and moderate. When the poles warm up they migrate again towards the poles until they freeze or dry up again.
Did Aaron ID that nopespider? It looks so darn huge, I'm actually curious about it.
That was a wandering spider. Even I could ID that one. As I ran away from it. Not one you want to pet.
What's ID?
Identify?
My favorite channel! Thank you.
Woow,I seriously want to see more of these series.Its amazing
Lol, you can see his mustache/beard grow over the course of the video
"Competition gives incentive for specialization"
Sounds like capitalism
Social Darwinism exists for a reason.
Hunt or you get hunted... the nature is in fact no "nice" place. But we humans can stand above this mindlessness.
@@Gebieter
No, we humans cannot. We are animals at the end of the day, struggling to survive. That was the failure of Marx. He forgot that given the ability to steal, no human will refrain.
Capitalism is the economic copy of nature, but luckily we've made some alterations so it's not that hard of a fight.
@@kakalimukherjee3297 some will refrain
But they have other bad things that they do
Thanks for showing the importance of the tropics. I hope people open their eyes.
I loved this video. You just explained all this so well!
that was a really good video
i like you joe
Salvadore.is that you?
I live in the equator and I wish I can go somewhere colder. The electric bill for keeping the air-con running is getting high
and no 4 seasons which I love, just boring dry or wet season
this video is just gold
This episode was way good than expected!!!
There's only so many insects, because animals don't have shoes to smack them with
+Jorge Daniel
Nothing that some Agent Orange, or better DDT or best Napalm can't solve.
why not all three
hahahahaha
You do know that many people live near or in the tropics than in poles or near it
+Joseph Narvaez You are right in many ways, but....I live in the tropics (South east asia), my ancestors (Austronesian) have always lived near the same area, but there are exceptions.
For example, the cousin of southern mongoloid (us) which is the northern mongoloid, apparently migrated upwards from SEA/South Asia (or the coastal southern asia to be precise) towards China, Korea, Japan etc.
And China now has the largest population in the world
The last shot looks like the background is a greenscreen. But the scary thing is that it's real life.... Can't handl it.
Surely it is a green screen though
This video is beautiful. So beautiful. Thank you!
I live in the tropics, and here the time when the sun sets is almost the same throughout the year. Specifically where I'm from the sun sets roughly at 6:00 pm in the summer, and at 5:00 pm in the winter. So when I've traveled to the States it feels extremely weird with the sun still being out after 8:00 pm in the summer, and by it already being night before 5:00 pm during the winter.
I would have the opposite, can't imagine the lack of seasons the equator is. I love the variety and the transition between seasons. Seasons like autumn, winter and spring are amazing, meanwhile, it's often only warm temps near the equator all year.. I dislike summer xd
The periodic table and standard model of physics are far from complete. Maybe. we don't know. Just like we don't know how many species there are.
I came with a question : is it the same for oceans? It seems to me that polar climates suits biodiversity and biomass best, maybe because more oxygen is dissolved in the water? Or maybe the oceans are more equalized?
Good question! Biodiversity is highest in areas with more nutrients, which occurs in "upwelling" zones. However there are regions that miss out on species dispersal because of currents, such as the current that flows around the globe just north of Antarctica. Hope that answers some of your question: as for most biological questions, it is very complicated really fast
Probably it happens the same way that in land
Amazing channel! I just discovered it and Iâm very excited with all the content! Really well done and interesting!
This is my favorite video of yours, specifically the conclusion â€
What was the furry spider like thing at 2:35?
It's Larvesta. The pre-evolved form of Volcarona.
"There are five orange, slightly whorled horns on the sides of its head, which it can use to spit fire as a defensive tactic to deter predators. It has been seen using fire it spits from these horns to fly. It lives at the feet of volcanoes."
Donaldus Trumpius
Larvesta, really? I think it's a Pokemon reference
It is a puss caterpillar. It is the flannel moth's larva. Trump's hair is an example of a domesticated one.
To me insects are both creepy and really cool to look at.
I love this series!
This is one of my new favorite CZcams channels.
can anyone tell me what the furry creature is at 2:34? none of the comments I found have answered it
I think it's a Puss Caterpillar
Some guy in the comment section suggested it was Trump's hair, looks real to me.
lmao this comment made my day đđ
Joe Hanson has never been more hansom.
Everything in this video is true. I was on a holiday near the equater. There was free or supercheap fruits everywhere. Coconuts, mango, and more exotic fruits. Eat a lot of fruit, met a ton of woman and now thereâs one of them pregnant and thatâs a new species right there.
đđđđđđ
Beautiful!!!
I'm high. For a moment I thought I was watching 'The Amazing Race.'
Greater diversity of species is also due to greater incidence of UV radiation, which causes DNA mutations.
Thank you so much for uploading this video. It is helping me get through the pandemic!
I learn for your channel more than ever. And it makes me curious