I don't comment too often, but thank you Mr. Anderson. People and educators like you help the world so much, and just having one good teacher ins something can provide a spark of interest in a topic for many students. Almost anyone can have a great teacher in their lives thanks to someone like you and it's just great. thanks
Excellent run down on all of the concepts that I teach for Population Ecology for my year 10s and year 12s! I love how you just get to the point and tie everything together so well!
My AP bio teacher is clueless and legitimately doesn't understand a lot of material she gives us, so a friend of mine who had the class recommended me to you. I am now more confident in getting an A, thank you sir.
Thank you for these awesome videos. I am not sure if my students love them but they are a true treasure for a teacher. Used them for supplement lectures when I was on maternity leave. Great teaching!
Thank you very much Mr. Anderson - Bozeman Science, for the videos you've shared here in RUclips. I used those as references as part of my online class instruction and helped me explain the concept of topics that I discuss with the class. I never re-posted your video as not to infringe copyright. Thank you very much, the student understood the topics easy-peasy.
Thank you for your information!! I really appreciate it!! Right now processing A LOT of information at once, and so might have to rewatch more than once to fully absorb because you gave A LOT to process, very concisely. But I hope you continue to make these videos accessible to people because I believe we all should know, as part of deeply knowing ourselves and where we fit into the world, with deep consideration. Thank you!! 🌞💖
Thank you, sir! I would like to see you graph out human population, trends, etc. including the year 1939 when we started to synthesize petroleum products for fertilizer. That is when we started to exceeded the earths natural carrying capacity of humans. Keep up the good work and thanks again
Freshman in highschool taking a APES unit test covering the Cycles,Ecology, and Evolution and this guy taught me Ecology in 12 minutes then I could by myself in 3 hours THANK YOU XDXDXD
Correct me if I am wrong but I think that the sea turtles should be a type 3 since most of their young die at the beginning of their lifetime when making their way from the sand into the water.
this is a survivor ship curve and what you are talking is about are mortality curves. sure many juveniles will die but the no of survivors in that population will not go down as the adults have very long life. so we get the type 1 curve
Bit late to this but sea turtles have a type 3 survivorship curve. Not a type 1. Out of all the individuals born in turtle populations only a small percentage of them survive to adulthood, but when they do they have a very low mortality rate when they are adults. Humans have very low mortality rates their entire lives, most babies born today survive to adulthood and with increasingly better healthcare adults live until very old age
I remember when I first learned this back in the 90s. We were still under the sway of “The Population Bomb” and similar fretting about overpopulation. In my high school class the teacher showed the k chart and the r chart, and next to that the human population, leaving us to draw the “obvious” conclusion. A few of us contested, as you did here, that the sigmoid also looks exponential for a while.
When a population reaches its carrying capacity growth levels off, using the term limiting factors and what you know about limiting factors explain how this might occur within a population of field mice.
Ah Yes the smell of science in the morning I had to watch this for an assignment in my freshmen Science class and I would just like to say..... I love how the top comment is "you are like a father to me" Boy would I love to have a father 🤗✨💖😇
Why does the exponential growth equation (Nt=N0e^rt) produce a different population size at a given time than what a spreadsheet produces? If I create a spreadsheet like you did in the other video with the rabbit population, and use an r value of 0.25, my calculations derived from adding the population increase to the population at a given time matches the spreadsheet values exactly. However, when I use the growth rate value of 0.25 and put it into the exponential growth equation (above), a different value is produced. For example, at t=4, the two values produced are 19.53(using the equation) and 21.53(using the spreadsheet or just adding the population increase from t=3).
Thank you very much. I noticed you said you may need a calculator, but I'd just like to remind you that calculators are not allowed on the AP Environmental Science exam.
It may not be obvious why the age is necessary to chart-but often it determines the life expectancy of an animal. If most of the population are children, one could draw the conclusion that those children do not survive long into adulthood (many young, few old). Or vice versa as well.
I don't comment too often, but thank you Mr. Anderson. People and educators like you help the world so much, and just having one good teacher ins something can provide a spark of interest in a topic for many students. Almost anyone can have a great teacher in their lives thanks to someone like you and it's just great. thanks
I was NOT ready for those rabbits to burst up in flames
same
same
😭🤣🤣🤣🤣
LMFAO
You're like a father to me
lol
Better to say "You're like a father figure to me"
Chan Lu true
Biologically no
you're like a teacher to me
Excellent run down on all of the concepts that I teach for Population Ecology for my year 10s and year 12s! I love how you just get to the point and tie everything together so well!
Last minute cramming for a bio final and this was so useful!
How did you do?
I wish you were my professor. Thank you thank you for making this easy to understand!!!
My AP bio teacher is clueless and legitimately doesn't understand a lot of material she gives us, so a friend of mine who had the class recommended me to you. I am now more confident in getting an A, thank you sir.
Thank you for these awesome videos. I am not sure if my students love them but they are a true treasure for a teacher. Used them for supplement lectures when I was on maternity leave. Great teaching!
Thank you very much Mr. Anderson - Bozeman Science, for the videos you've shared here in RUclips. I used those as references as part of my online class instruction and helped me explain the concept of topics that I discuss with the class. I never re-posted your video as not to infringe copyright. Thank you very much, the student understood the topics easy-peasy.
Thanks Mr Anderson, ur a wonderful teacher.
You’re*
yoar*
@@earlessroboticcat7102 ur* headass
@@strawhat4829 You are*
yur*
Thank you Bozeman! That was an awesome video and really accessible. I'm going to recommend it to my classmates.
mr.anderson saves me when I'm last minute cramming for AP bio tests!!!! THANKS MR.ANDERSON
That was so helpful. Thank you for the free education. Much needed.
Thanks, Teach! I'm just an average guy trying to learn what the "rules for life on earth" are. This was helpful
You saved my life 😭 king of teaching!
10:17 people die at the end of their lives. Insightful 👏
I know 😭
No shit Sherlock
What a great teacher, you are born to do this! God bless you!
you just saved my exam, this is all i needed to pass my exam and got an A on my exam, thank you so much!
Thanks, this was really helpful. Concise and informative. Hope we see more of your videos on ecology.
Thank you for your information!! I really appreciate it!!
Right now processing A LOT of information at once, and so might have to rewatch more than once to fully absorb because you gave A LOT to process, very concisely.
But I hope you continue to make these videos accessible to people because I believe we all should know, as part of deeply knowing ourselves and where we fit into the world, with deep consideration.
Thank you!! 🌞💖
I'd lke to transfer my professors salary, house, and car to this man.
Thank you for this sir. Finally found an excellent reliable source. God bless you.
It's really awesome i had some difficulties on understanding population ecology but now its walk over
Intrinsic Growth Rate. Slay!
👏Thank you, teacher!
These are really good supplements to uni lectures. Thanks
I learned more in this video than in an entire year of Wildlife and Ecology classes in College.
doing my teaching practicals, and this gave me a full proper lesson.... thank you
thank you, so clear, and yet detailed. awesome work, keep it up!!
not normally a big fan bc I'm from england so normally your vids sort of apply to my work but not a lot, but this was amazing! So so helpful.
I find all of the videos helpful and interesting. Thanks in advance for making more
Thank you, sir! I would like to see you graph out human population, trends, etc. including the year 1939 when we started to synthesize petroleum products for fertilizer. That is when we started to exceeded the earths natural carrying capacity of humans.
Keep up the good work and thanks again
so well expained thanks to the cool animated drawings and a structured tree to understand. Thanks a lot =)
Shoutout anyone watching this for ENVR SCIENCE from GC 🥳🥳
Who else had to read this for science class?
Awesome sir
A salute to you from India🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳
I have a bio final tomorrow and these are so helpful!!!!
thank you for a wonderful presentation. I have learned and enjoyed the video.
Haha I could stop going to class way better than my hour long lectures! Thank you!!
Thanks sir, I have final test this afternoon!
Hey Mr. Anderson, this is the most video like ever
Lol I like how you made this amazing concise video then at the end say "hope that made sense!"
Freshman in highschool taking a APES unit test covering the Cycles,Ecology, and Evolution and this guy taught me Ecology in 12 minutes then I could by myself in 3 hours THANK YOU XDXDXD
Great job!!! With a touch of drama, for example with the rabbits in flames, that hit the spot in the audience.
Correct me if I am wrong but I think that the sea turtles should be a type 3 since most of their young die at the beginning of their lifetime when making their way from the sand into the water.
I would confer.
Yes, but if they survive, they go on to live very long lives! Like humans.
You are in fact correct. The mortality rate for a sea turtle in their juvenile years is higher, than that of after they have become an adult.
this is a survivor ship curve and what you are talking is about are mortality curves. sure many juveniles will die but the no of survivors in that population will not go down as the adults have very long life. so we get the type 1 curve
Bit late to this but sea turtles have a type 3 survivorship curve. Not a type 1. Out of all the individuals born in turtle populations only a small percentage of them survive to adulthood, but when they do they have a very low mortality rate when they are adults. Humans have very low mortality rates their entire lives, most babies born today survive to adulthood and with increasingly better healthcare adults live until very old age
I did learn from this video. i really appreciate it. these videos help me in my school
Wonderful and easily understood video sir. Lot of thanks
Thank you so much indeed, this video has helped me a lot.
This guy is such a chad. Best bio teacher ever
Yep still useful studying for my Ecology exam eeekkkkk.... thank you
I loooove this guy, his videos do help me a lot!
I remember when I first learned this back in the 90s. We were still under the sway of “The Population Bomb” and similar fretting about overpopulation. In my high school class the teacher showed the k chart and the r chart, and next to that the human population, leaving us to draw the “obvious” conclusion. A few of us contested, as you did here, that the sigmoid also looks exponential for a while.
So nicely explained. Thanks!!
IT WAS REALLY HELPFUL FOR MY UPCOMING ZOOLOGY EXAM. AFTER A LOT OF DAY I COMMENTED ON SOMEBODY'S VIDEO, THIS LECTURE WAS REALLY AMAZING.
thanks alot MR. this was really helpful
Nicely explain concept of biotic potential exhibited by Different species populations ...thank
namastey sir ... thank you so much ...
Awesome explanation!
Mr Anderson saving my useless bren cell once more
Wow I can't believe this just one week ago we're now into ecosystems as a complex system it's killing me
Great Informative video!!
When a population reaches its carrying capacity growth levels off, using the term limiting factors and what you know about limiting factors explain how this might occur within a population of field mice.
So well put, thank you so much for this video!
Ah
Yes the smell of science in the morning
I had to watch this for an assignment in my freshmen Science class and I would just like to say..... I love how the top comment is "you are like a father to me"
Boy would I love to have a father 🤗✨💖😇
POG
@@creek388 *insert British accent *
✨😇𝓟𝓸𝓰𝓰𝓮𝓻𝓼😇✨
Thank you for the video! It's funny you posted it and I have an AP bio quiz on this later today lol
Good Stuff ! Thank you for making these videos
Fantastic! thank you sir❤
Too awesome sir 🙏🏻👏🏻
this is was so awesome. keep it coming!
Very good video!
Thanks for the video
Sir Thank you so much you cleared my all confusion.....
Nice sir... doubts are cleared
Excellent, thank you.
Thanks very much sir
Thanks for the video. Needed it for science. 😀
Thank you very much
It's damn amazing explanation and he makes, you learn so fast
Thanks... It's helped a lot.
Why does the exponential growth equation (Nt=N0e^rt) produce a different population size at a given time than what a spreadsheet produces? If I create a spreadsheet like you did in the other video with the rabbit population, and use an r value of 0.25, my calculations derived from adding the population increase to the population at a given time matches the spreadsheet values exactly. However, when I use the growth rate value of 0.25 and put it into the exponential growth equation (above), a different value is produced. For example, at t=4, the two values produced are 19.53(using the equation) and 21.53(using the spreadsheet or just adding the population increase from t=3).
Nice guru g 🙏🏻
I always remember r selection as "r" for "rapid" birth rate or "r" for "rabbit" because of how many offspring rabbits have
This man is brilliant
Very helpful and educational thank you!
Thank you very much. I noticed you said you may need a calculator, but I'd just like to remind you that calculators are not allowed on the AP Environmental Science exam.
+Farhan use calculator in case u want a quicker solution not for exam
+Farhan Muhammad well they are on the ap biology test....
I’m gonna kms
There are other people taking environmental science courses that are allowed to use calculators.
thank you
Thanks so much
Thank you so much!!! This was very helpful! :)
Very helpful thank you.
It was much helpful 👏👏👏
Thanks for the video. I also need some clarity on how did the intrinsic growth rate of r= .1 turn to 0.5 in the equation. I confused
How are we supposed to do the population growth stuff without a calculator. This is almost the only thing I cannot do in AP Environmental Science.
You are always given tables, which you can use to input r and t
It may not be obvious why the age is necessary to chart-but often it determines the life expectancy of an animal. If most of the population are children, one could draw the conclusion that those children do not survive long into adulthood (many young, few old). Or vice versa as well.
You are awasom.
Thanks!
very nice
Thanks alot of ♥️
Thank you so much :D
clearly explained!! thank you
Thank you so much
thank you so much! very helpful
Super helpful! Thank you!
Thank you! You’re the best
this really helped. I honestly hate ecology and this made it easier to understand.