Topic: If you know how to plug in numbers...
Catherine !TGirlYJKXM started this discussion 8 years ago #73,353
Can you solve any advanced formula in mathematics?
For example, would you be able to play around with the repopulation equation?
What is the formula for that anyway? I tried Google but I couldn’t find it.
For example, would you be able to play around with the repopulation equation?
What is the formula for that anyway? I tried Google but I couldn’t find it.
Anonymous B joined in and replied with this 8 years ago, 2 minutes later[^] [v] #874,154
MX1+B
Anonymous C joined in and replied with this 8 years ago, 3 minutes later, 5 minutes after the original post[^] [v] #874,156
Catherine !TGirlYJKXM (OP) replied with this 8 years ago, 3 hours later, 3 hours after the original post[^] [v] #874,196
Big Daddy Derek™ !Uvm54ORbmo joined in and replied with this 8 years ago, 5 minutes later, 3 hours after the original post[^] [v] #874,198
chili dog !!81dzJNNYL joined in and replied with this 8 years ago, 55 minutes later, 4 hours after the original post[^] [v] #874,205
@874,196 (Catherine !TGirlYJKXM)
It's much easier when you actually understand. Trust me.
I just did the same calculation with two different equations that should be equivalent and they're off from each other by 2 orders of magnitude
It's much easier when you actually understand. Trust me.
I just did the same calculation with two different equations that should be equivalent and they're off from each other by 2 orders of magnitude
Catherine !TGirlYJKXM (OP) replied with this 8 years ago, 14 minutes later, 4 hours after the original post[^] [v] #874,209
Anonymous B replied with this 8 years ago, 2 minutes later, 4 hours after the original post[^] [v] #874,210
@previous (Catherine !TGirlYJKXM)
The basic math operators? They mean plus, minus, multiply and divide, and then there's parentheses.
The basic math operators? They mean plus, minus, multiply and divide, and then there's parentheses.
Anonymous C replied with this 8 years ago, 41 minutes later, 5 hours after the original post[^] [v] #874,214
@874,205 (chili dog !!81dzJNNYL)
> I just did the same calculation with two different equations that should be equivalent and they're off from each other by 2 orders of magnitude
That is because simple calculations presume many assumptions. The math for an accurate result is very complex. For example the human population is speculated to be exponential. Speculated of course leads to wide variations. Population growth in Syria prior to and compared to times during the long war.
Out of date yet still somewhat useful is the Malthusian Equation.
> I just did the same calculation with two different equations that should be equivalent and they're off from each other by 2 orders of magnitude
That is because simple calculations presume many assumptions. The math for an accurate result is very complex. For example the human population is speculated to be exponential. Speculated of course leads to wide variations. Population growth in Syria prior to and compared to times during the long war.
Out of date yet still somewhat useful is the Malthusian Equation.
chili dog !!81dzJNNYL replied with this 8 years ago, 4 minutes later, 5 hours after the original post[^] [v] #874,216
Anonymous C replied with this 8 years ago, 10 minutes later, 5 hours after the original post[^] [v] #874,225
@previous (chili dog !!81dzJNNYL)
Catherine should have asked Google for web calculators for "repopulation" There are a plethora of them.
This one is useful for calculating the growth of bacteria or the population growth of Iceland.
http://www.1728.org/expgrwth.htm
Catherine should have asked Google for web calculators for "repopulation" There are a plethora of them.
This one is useful for calculating the growth of bacteria or the population growth of Iceland.
http://www.1728.org/expgrwth.htm
Catherine !TGirlYJKXM (OP) replied with this 8 years ago, 40 minutes later, 6 hours after the original post[^] [v] #874,247
@previous (C)
I just realized that none of these equations tell me how many males and how many females a population needs to survive.
That was what I was really looking for.
I just realized that none of these equations tell me how many males and how many females a population needs to survive.
That was what I was really looking for.
Anonymous C replied with this 8 years ago, 37 minutes later, 6 hours after the original post[^] [v] #874,257
@previous (Catherine !TGirlYJKXM)
Yes in fact the equations do exactly that. What you are trying to ask is for a "Population viability analysis" English words like Extinction come to mind. The level of genetic diversity necessary to maintain adaptation (and evolution). The effect of chance events such as wars or asteroids. The time frame available.
Now jumping ahead a bit - I bet you want to "No" What is the minimum number of Them wood it take to maintain a viable gene pool. A common problem when looking at endangered species. One single set of equations is not going to cut it. Issues like inbreeding really complicate this.
Yes in fact the equations do exactly that. What you are trying to ask is for a "Population viability analysis" English words like Extinction come to mind. The level of genetic diversity necessary to maintain adaptation (and evolution). The effect of chance events such as wars or asteroids. The time frame available.
Now jumping ahead a bit - I bet you want to "No" What is the minimum number of Them wood it take to maintain a viable gene pool. A common problem when looking at endangered species. One single set of equations is not going to cut it. Issues like inbreeding really complicate this.
(Edited 57 seconds later.)
Anonymous C double-posted this 8 years ago, 11 minutes later, 6 hours after the original post[^] [v] #874,261
OK so I forced a Boolean Google search asking for the number using Population viability analysis and came up with several wide ranging numbers
The math for this gets staggering because one has to assume at the getgo just how good the first gene pairs are. Clearly you need basic good genes to begin with. Read this to see how a population of 70 may have made it
https://www.livescience.com/289-north-america-settled-70-people-study-concludes.html
4,169 individuals
This is known as the Minimum Viable Population, and many computer models and studies based on various circumstances and species have been run. For Humans, including the desire to ward of genetic defects due to inbreeding the median MVP reported is 4,169 individuals.
This is known as the Minimum Viable Population, and many computer models and studies based on various circumstances and species have been run. For Humans, including the desire to ward of genetic defects due to inbreeding the median MVP reported is 4,169 individuals.
The math for this gets staggering because one has to assume at the getgo just how good the first gene pairs are. Clearly you need basic good genes to begin with. Read this to see how a population of 70 may have made it
https://www.livescience.com/289-north-america-settled-70-people-study-concludes.html