Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades

Поделиться
HTML-код
  • Опубликовано: 2 фев 2025

Комментарии • 364

  • @merubindono
    @merubindono 7 лет назад +616

    Me: *looking at starfish* are you a keystone specie?
    Starfish: no this is Patrick

    • @oliviaso9726
      @oliviaso9726 5 лет назад +6

      LOL SPONGEBOB

    • @andrewrodriguez3712
      @andrewrodriguez3712 5 лет назад +12

      @Tofu Kingpin you literately predicted the future of youtube comments/memes considering this is a 2 year old comment
      By using the
      Me:
      someone else:
      format

  • @avabbeeeee
    @avabbeeeee 4 года назад +262

    3:37 green world hypothesis (def.)
    13:40 trophic cascades (def.)

  • @annika2041
    @annika2041 4 года назад +570

    anyone else looking through the comments procrastinating your work?

  • @kylap8961
    @kylap8961 4 года назад +782

    this homework at home is not the move anymore

  • @ramennoodles8774
    @ramennoodles8774 4 года назад +65

    Watch at 1.75 or 2x speed. It's gonna help you a lot if you're doing this for school ;)

  • @cececramer750
    @cececramer750 4 года назад +95

    i spent 20 minutes reading the comments and forgot to watch the video

  • @Leoneidas
    @Leoneidas 2 года назад +28

    Sean and these Biointeractive pieces are amongst the best quality anywhere. So well done.

  • @MrAshton
    @MrAshton 4 года назад +163

    He looked so proud of him self when he said "I changed the nature of the system"

  • @YoungSinger17
    @YoungSinger17 2 года назад +10

    With All honestly, I am glad to be watching these videos, as they are quite informal, I enjoy watching them repeatedly, & I somehow do not grow bored of any of the videos! They work well as video assignments, as long as the right questions are asked!

  • @christophercook7442
    @christophercook7442 6 лет назад +43

    As a former student of Dr. Estes’ wife, I was very familiar of their orca research (although in 2001 the phrase “trophic cascade” was not used).

  • @44VW44
    @44VW44 3 года назад +21

    It makes me feel despair that so many people have lost or never had a connection to Nature. While this video has lots of facts that are “dry” relative to the experience of being in Nature. The research does provide clues on how to reverse losses of endangered species.

  • @carrieannnaumoff5594
    @carrieannnaumoff5594 7 лет назад +16

    Wonderful - clear and easy to understand for my 5th grade students, yet full of profound information from two wonderful scientists. Great film. The students were absolutely fascinated.

  • @samis13git26
    @samis13git26 4 года назад +38

    Bro this virus and staying home is getting to my head

  • @SHZpai
    @SHZpai 5 лет назад +73

    Wait so one man killed an entire ecosystem right?

    • @yungcunt1717
      @yungcunt1717 4 года назад +3

      Yes 🥺🙏

    • @sogsmcgee2183
      @sogsmcgee2183 4 года назад

      Ye the tide pool kinda got rekt by mussels.

    • @imhereforkaisa1555
      @imhereforkaisa1555 3 года назад +1

      on the bright side, his subsequent results gave us knowledge about the topic so we know what to avoid now

    • @olgierdvoneverec4135
      @olgierdvoneverec4135 3 года назад +2

      No, he did it in a single rock, and didn't kill it, only changed it.

    • @saris_2194
      @saris_2194 7 месяцев назад

      It was only on a section of it. The ecosystem surely recovered after he stopped removing the stars

  • @coolestone28
    @coolestone28 4 года назад +71

    The answers to some questions
    Green World Hypothesis: The world is green because predators keep herbivores in check.
    Keystone Species: a animal that were removed from a ecosystem would effect on the ecosystem as a whole
    Trophic Cascades: Trophic cascade is when you have an apex predator controlling the distribution of resources, and they lead to these cascades of indirect effects lots and lots of indirect effects
    Hypothesis and Experimentation: Killer whales eat otters. a place called Clam Lagoon. It provided us a site that orcas could not get to. We had no problem catching about 30 animals in two or three Days. And the fact that that little population did not decline when everything else did the orcas

  • @WilsonRobertB
    @WilsonRobertB 5 лет назад +10

    Leopold described the trophic cascade in his essay "Thinking Like a Mountain" before any of this work was done. What is impressive, is how well Paine and Este's work empirically validates Leopold's anecdotal description.

  • @cassied9327
    @cassied9327 4 года назад +9

    I love hhmi biointeractive, I wish I had them on TV when I was growing up. I was fortunate to have Eyewitness (shows and books). Happy to have these videos now!

  • @mexicansnorlax909
    @mexicansnorlax909 2 года назад +13

    Am I the only one who hates to watch these when you have hw but loves to watch it on my own time

  • @IchaMufti
    @IchaMufti 9 месяцев назад +3

    i forgot that it was homework, mindblowing as hell. ecology and nature just too beautiful to handle

  • @TKEYLER
    @TKEYLER 2 года назад +2

    Excellent resource - using this in my ecology class this week. thanks

  • @dannylim834
    @dannylim834 3 года назад +43

    ecologist Robert Paine has passed away on June 13, 2016. This is around seven weeks after this video was posted. Rest in peace, star thrower 😔

  • @greatlife1047
    @greatlife1047 4 года назад +7

    "All animals are equal but some are more equal than others"
    The title reminded me of the quote from Animal Farm.

  • @audreysakamoto5388
    @audreysakamoto5388 4 года назад +40

    who would watch this in there free time i'm only here from school :(

    • @TheTypicalGinger
      @TheTypicalGinger 4 года назад

      School is bad....

    • @kirancox6123
      @kirancox6123 4 года назад +7

      its actually really interesting
      and some people are interested in things like this
      but yes I am here from school

    • @ll-uj5yx
      @ll-uj5yx 4 года назад

      @@kirancox6123 u sound smart what is a community

    • @imhereforkaisa1555
      @imhereforkaisa1555 3 года назад

      i thought it was really cool

    • @harkiratrandhawa4941
      @harkiratrandhawa4941 3 года назад +1

      @@ll-uj5yx all populations in a specific area

  • @alltimeorphan
    @alltimeorphan 5 месяцев назад +2

    here for school. this was actually very interesting thanks.

  • @frankkolton1780
    @frankkolton1780 3 года назад +6

    I'm not here because of school work or assignment, I'm here because like many people, I enjoy learning and increasing my knowledge of the world around me, bettering myself so I can make better informed decisions on how I live and how I vote to live.

  • @MidasCat
    @MidasCat 4 года назад +75

    school, anyone?

  • @rextlfung
    @rextlfung 5 лет назад +7

    What a lad. Does all the labor work himself. Truely passionate scientist.

  • @CesarGarcia-ru8hr
    @CesarGarcia-ru8hr 4 года назад +5

    I'm gonna take a notebook to some forrest and start chucking squirrels and call it an experiment.

    • @krazieorigami
      @krazieorigami 3 года назад +1

      i've tried this, they bite and get upset

  • @simyian9932
    @simyian9932 7 лет назад +15

    8:05 there is a quote by Animal farm James orwell

    • @nqs2362
      @nqs2362 5 лет назад +3

      george

    • @whatabouttheearth
      @whatabouttheearth 4 года назад

      *George Orwell
      And here is a 1984 refference (the t shirt) 😄:
      ruclips.net/video/b9xVEeYAs3w/видео.html

  • @user-cr7ln9mg1t
    @user-cr7ln9mg1t 6 лет назад +29

    "Animal Farm" reference in the title not intended, I assume?

    • @bw1170
      @bw1170 6 лет назад

      Hung Nguyen
      The video *is* about animals after all

    • @corydalton7135
      @corydalton7135 5 лет назад +2

      It was intended as stated in his book the Serengeti rules.

    • @hollypotthoff2337
      @hollypotthoff2337 5 лет назад +3

      The Animal Farm reference is VERY MUCH intended for this video. Scientists have discovered that certain animals are the major controls for the health of the ecosystem they live in, and are therefore considered keystone species. With this in mind, it is now a fact; some animals really ARE more equal than others, and their ecosystem will literally perish without their existence.

    • @Valor708
      @Valor708 4 года назад

      it's intended

    • @kaylynpamon
      @kaylynpamon 4 года назад

      nice catch😭

  • @dristamiko
    @dristamiko 3 года назад +16

    the people who created this wondering why the views are going up dramatically:

  • @kCuFfication
    @kCuFfication Год назад +5

    I wish all my ecology lessons were this interesting. Why can't they be??

  • @alexandroskaminas
    @alexandroskaminas 8 лет назад +10

    Spectacular! ecology is truly amazing, especially marine ecology!

  • @kd8249
    @kd8249 4 года назад +163

    Who here for online school?

  • @bringbackplutonsp
    @bringbackplutonsp 3 года назад +5

    Jesus Christ these students in the comments are garbage. You can't watch a 20 minute video but ya'll spend hours on tiktok? This video showcases THE pioneer in intertidal ecology and an immensely important concept. Show some respect.

    • @msh3l518
      @msh3l518 2 года назад

      iskit ya dayoooooth

  • @JoshuaDunn-oi8ye
    @JoshuaDunn-oi8ye 10 месяцев назад

    ngl the prof asking what makes the tree green and the answer being top down regulation is the best description of the kind of trick questions college throws at you.
    Also my third time watching this vid in my bio major.

  • @inspiringer6418
    @inspiringer6418 5 лет назад +28

    I'm doing this for homework but the teacher didn't give us the link so I found it myself. He said it is due tomorrow which is odd I guess.

  • @kyleegorecki541
    @kyleegorecki541 4 года назад +44

    Biology students here cuz of coronavirus lmao.

  • @alejandrotorres1191
    @alejandrotorres1191 3 года назад +4

    do not procrastinate, the video is interesting, Don't do it just because it's a homework, do it because you're curious about it. Don't waste time doing something you don't like.

  • @connorcallahan6154
    @connorcallahan6154 4 года назад +37

    POV: you don't want to be here

    • @jr_2810
      @jr_2810 4 года назад +3

      Shhhhh, keep it down, they'll find out

  • @darklingeraeld-ridge7946
    @darklingeraeld-ridge7946 6 лет назад +4

    Excellent. And so much follows from this, that is unsaid. Not least that we should tread lightly.

  • @poapoapopopoop
    @poapoapopopoop 3 года назад +3

    im gonna yeet my exams harder than this dude yeets starfishes

  • @EmeraldOnSwitch
    @EmeraldOnSwitch Год назад +2

    Watching this in class

  • @tallarinverd3
    @tallarinverd3 5 лет назад +9

    beautiful! such an important discovery!

  • @bunnyviperaquatics2108
    @bunnyviperaquatics2108 3 года назад +3

    Can someone please clarify? What am I missing? This gentlemen tossed these starfish back into the ocean and the ecosystem changed- ok, but why didn’t the starfish come back? Once they hit the water a second time, did they forget how to crawl back on shore?! What kept them from coming back on land? Why wouldn’t they? This is a serious inquiry and I appreciate your feedback in advance! Have a good one!

    • @biointeractive
      @biointeractive  3 года назад +2

      He kept throwing them back. Plus, starfish move slowly. nautil.us/issue/34/adaptation/the-ecologist-who-threw-starfish

  • @arcticmaritimus2263
    @arcticmaritimus2263 6 лет назад +4

    So amazing and educational! Thank you

  • @gabriellacheetham7120
    @gabriellacheetham7120 5 лет назад +31

    honors biology?

  • @chrislecky710
    @chrislecky710 2 года назад +3

    A key stone species is a human concept for what is being observed at that point in history given the circumstances that caused the lost of one or two predators...

  • @5c4r_l3tt
    @5c4r_l3tt 2 года назад +2

    i’m wondering if any of my classmates are also cramming this info last minute

  • @nadianeff3353
    @nadianeff3353 4 года назад +28

    Having to watch 20 minute videos like this for e learning is making me loose brain cells smh

  • @12SoccerdudE21
    @12SoccerdudE21 6 лет назад +2

    love this. thank you! will be sharing!!!!

  • @adajocabethalvarez8117
    @adajocabethalvarez8117 4 года назад +1

    This is why I'm studying Ecology!

  • @mafarmerga
    @mafarmerga 5 лет назад

    I wish that I could give this more than one thumbs up!

  • @obiwahndagobah9543
    @obiwahndagobah9543 7 лет назад +10

    All the hunters, who say hunting wolfes is healthy for the Environment, should watch this

    • @12SoccerdudE21
      @12SoccerdudE21 6 лет назад +5

      in some ecosystems, wolves are a problem and do need humans to keep it from getting worse. especially because the sections of wild are broken up by cities and roads like never before which confuse the system as well, and force groups of animals in smaller areas. also, for every square mile of city, there are tens of miles of farm for food that you and everyone else eats, and farmers are not so wealthy that they can replace unsold stock. :) walk in peace!

  • @ryziemusic
    @ryziemusic 4 года назад

    wow this is lowkey pretty intriguing

  • @yianniskrompas
    @yianniskrompas 6 месяцев назад

    lovely, thank you!

  • @liminalwysteria
    @liminalwysteria 6 месяцев назад +1

    1:00 IT ALL BEGAN WHEN A RANDOM GUY THREW A STARFISH

  • @m_disulphide
    @m_disulphide 4 года назад +2

    RIP Robert Paine

  • @olivia-cb2qq
    @olivia-cb2qq 5 лет назад +3

    Can u help me with my bio cer for this

    • @petraking4060
      @petraking4060 5 лет назад +1

      It's rough... still chewing on it, but here it is :-)
      6. CER Question: What happens when you remove the predator starfish from a single outcrop? For a 1 ½ years & 3 years
      • Claim (1 sentence- Scientifically accurate -Completely answers the question using words from the question)
      • Evidence - scientific data that supports the claim (use the numbers or % or fractions…)
      • Reason: How does evidence support - or not support- the claim?
      Since (reason) ___________________________________________________________
      Then (then) ____________________________________________________________

  • @hamoodhabibi8031
    @hamoodhabibi8031 4 года назад +4

    13:06 wait a minute how is he takin notes underwater?

    • @rebeccahowell9531
      @rebeccahowell9531 3 года назад +1

      There’s water proof paper. My swim coach had some for taking attendance. She didn’t know how it worked either tho :)

  • @thathagxoxo3001
    @thathagxoxo3001 4 года назад +6

    LMFAOO THATS MY BIOLOGY TEACHER

  • @all_hallows_eve79
    @all_hallows_eve79 6 лет назад +2

    Very helpful in revision for ecology

  • @charysesay8476
    @charysesay8476 Год назад +1

    before even pressing play i knew there would be otters

  • @vidaripollen
    @vidaripollen 3 года назад +1

    Beautiful

  • @jonathanshedd1052
    @jonathanshedd1052 4 года назад +4

    Mrs. Soroak do be making us watch the video tho

  • @Tylerthemusicophile
    @Tylerthemusicophile Год назад

    I have a question for this video. If otters are the keystone species keeping the urchins from eating all the kelp, what is causing the Urchins to stay in the area when the kelp is gone and they have nothing to eat? Urchins can live for up to 25 years and they spawn yearly, surely that environment cannot support the population anymore if that species going unchecked right?

  • @Radagast-
    @Radagast- 2 года назад +2

    It stands to reason that a finely balanced system relies on the contribution of all the component parts... if each were not integral in some way, then they would disappear.
    I really don't see that this guy is a groundbreaker for discovering that removing a component from the system causes the system to collapse. Especially as he did it deliberately.

    • @kevinmcdunn8058
      @kevinmcdunn8058 Год назад +1

      Most ecosystems don't behave like this, and aren't "finely balanced." Removing a random species usually has little or no effect. His discovery is that some species, "keystone species," have an outsized influence on an ecosystem relative to their abundance. To a lesser degree he supported the hypothesis about the top-down regulating role of predators generally.

  • @junepedley4920
    @junepedley4920 4 года назад +4

    Nobody killed an entire ecosystem! Paine was able to demonstrate there was such a thing as a keystone species and that removal of a keystone species impacted the biodiversity of the system.

  • @Knapweed
    @Knapweed 4 года назад +1

    Humans, "We are the Apex predator." Coronavirus/smallpox/black death/influenza, "Hold my little, tiny beer." The rest of the planet, "Hoooray!"

  • @doodelay
    @doodelay 3 года назад

    this is amazing

  • @giuliana3113
    @giuliana3113 4 года назад +4

    sitting in class rn reading these comments plsss

  • @Neptune-tz6by
    @Neptune-tz6by 4 года назад +2

    Why are there any thumbs down???? Pretty straight forward folks…...

  • @GMDRykryk
    @GMDRykryk 4 года назад +17

    this aint short wtf

  • @trexflight
    @trexflight 3 месяца назад +1

    My science teacher led me here.

  • @Deadoralive955
    @Deadoralive955 6 лет назад +21

    AP environmental science?

  • @frankmaher7326
    @frankmaher7326 4 года назад +1

    For the answers just open the transcript

  • @НаталияПопова-д6з

    so interesting! like this video, thank u!

  • @ホリウチミワ
    @ホリウチミワ 8 месяцев назад

    4:33 キーストーン種の紹介
    5:51 実験
    7:07 キーストーンのイメージ

  • @ob18ob39
    @ob18ob39 3 года назад +3

    Anyone else watching this for homework

  • @beyabeyabe
    @beyabeyabe 6 лет назад +3

    oh my god this was so interesting and beautiful

  • @llamathecooldude691
    @llamathecooldude691 4 года назад +2

    I would like Santa Claus to teach me about the ecosystem :)

  • @adambloom7499
    @adambloom7499 4 года назад +3

    who's here because of their living environment class?

  • @DrRECM
    @DrRECM 4 года назад +1

    Crafoord Prize for Robert Paine?

  • @frankkolton1780
    @frankkolton1780 3 года назад +2

    Some Asian countries, like Taiwan, China, and Indonesia, to name a few, are performing this same experiment in the Pacific and Indian oceans. Longlining 90 to 100 million sharks each year, cut off their their dorsal fins, and then throw the still living sharks back into the water. That number doesn't include the 10s of millions of sharks taken whole each year. The fins used for soup and chinese "medicine", the majority are brokered thru Hong Kong.

  • @herlife1934
    @herlife1934 4 года назад +1

    first of all we all here cuz of school, second of all my guy really killed off an ecosystem and he's proud of it. third of all -Biology is lowkey fun

  • @GenericUsername_
    @GenericUsername_ Год назад +2

    finals go crazy

  • @stacymendessanches6905
    @stacymendessanches6905 2 года назад +2

    Traveled 300 miles to throw star fish 😂

  • @DubVisualz
    @DubVisualz 4 года назад +1

    what kind of question did professor smith ask his class?

  • @tigerday9059
    @tigerday9059 4 года назад

    what is the role that competition plays in the relationship between muscles and other crustaceans?

  • @chrislecky710
    @chrislecky710 2 года назад

    Dynamic systems are consitently in flux people, so a key stone species is provable and disprovable according to when its observed, this is how life has sustained no matter the situation or circumstances on our planet..

  • @thepro2u720
    @thepro2u720 4 года назад +2

    Umm... anyone else find it interesting how he died about a month after this video?

  • @madelinea9804
    @madelinea9804 4 года назад +2

    who else was sent here because of online school? dang the teacher was extra mad today xD

  • @hartfxlt
    @hartfxlt 4 года назад

    can someone just tell me what this is about thank you

  • @johndafoe600
    @johndafoe600 Год назад +2

    We must acknowledge our role in this imbalance and make amends.

  • @doublehelix8330
    @doublehelix8330 3 года назад +1

    Amazing........

  • @moysesbarbosa8486
    @moysesbarbosa8486 8 лет назад +3

    great!

  • @athickie
    @athickie 7 лет назад +2

    Awww the otters are so cute 💖🤗

  • @wagibototrapo
    @wagibototrapo 3 года назад +3

    if we look deeper... the culprit is human

  • @financialprofessionals
    @financialprofessionals 4 года назад +1

    15:09 is it just me or does that guy kinda look like Adler from COD: Cold War?