How to calculate effective population size dominated by alpha male
Effective Population Size:
Here’s the general idea: Factors like genetic drift depend on population size. But the census size of a population—the raw number of members—may not tell you what’s really going on. In a population of living things, some members may not be reproducing (because they’re too young or too old, because there’s an excess of males or females, because a few “privileged“ males mate with multiple females. . . etc. etc.) The effective population size is the size of a hypothetical ideal population, all of whose members have an equal probability of breeding, that has as much inbreeding and genetic drift as the real population.
Exactly how you calculate this depends a lot on the situation and can be a little tricky, but here’s a sample: In a population of diploid individuals with separate sexes, Ne, the effective population size, is equal to (4NfNm) / (Nf Nm), where Nf is the number of females and Nm is the number of males. If Nf and Nm are equal, then Ne reduces to Nf Nm, which is just N (the actual population size). But suppose that this population is dominated by a single alpha male who does all the breeding (which is close to what happens in some animals, such as elephant seals). Then Nm = 1, and the formula becomes Ne = 4Nf / (Nf 1).
So if you have a population of 100 elephant seals, 50 males and 50 females, N = 100, but Ne = 200/51 = 3.9. In other words, a population of 100 elephant seals in which only one male mates will have as much genetic drift and inbreeding as a population of four elephant seals in which all members could mate! This has a lot of implications for conservation and breeding programs.
#Homozygous #chromosome #GeneticsExamQuestionsSolutions #alleles #Breeding #lawOfProbability #genes #Inbreeding #DNA #meiosis #effectivePopulationSize #Allele #centromeres #gregorMendel #Genetics #phenotype #genotype #Promoter #gene #aminoAcid #MolecularBiology #Cancer #GeneStructure #geneticDrift #RNA #geneticCode #mitosis #chromatid #geneExpression #GeneticExamQuestionsSolutions #GeneticsLecture #Genetics101 #Proteins
0 views
246
61
2 days ago 00:52:27 0
Awakened Christ Consciousness: The Hidden Message of Jesus Revealed
2 days ago 00:04:21 0
Getting Pregnant after 36 | Best ways to Natural Conception without IVF and IUI- Aasha Ayurveda
2 days ago 00:04:14 0
How EVIL VITALITY Really Plays CS2
3 days ago 00:09:32 0
Making a Teddy Bear Keychain with Hair Rubber Bands and Sewing Thread / Incredibly Simple Steps
5 days ago 00:10:38 19
Rear Choke Submission! | Jena Bishop v Ekaterina Shakalova | Full Fight | PFL WT 6 2025
5 days ago 00:04:24 1
CryptoPromo – The Leading Crypto Marketing Platform in 2025?
6 days ago 00:00:24 0
The Most Adorable Monster in Japanese History
6 days ago 00:03:15 0
The Wallet Gesture and Invitation by Pastor Lance Edminster 2025 06-29
7 days ago 00:12:59 0
Americans Invented a New Christianity: Here’s Why That’s Terrifying
1 week ago 00:03:55 12
English Christian Song | “Those Who Are Not Acknowledged by God“
1 week ago 00:00:30 2
hadama #funnyclip #baby
1 week ago 00:04:35 10
Jeff Bezos’ $10M Venice Wedding: Inside the Lavish Celebration & Celebrity Guest List | NEWSDRIFT
1 week ago 00:12:56 0
Google’s AI Found a Glitch in Reality — And It’s Getting Worse
1 week ago 00:00:34 1
Background suppression optical sensor! High sensitivity, strong stability, handle any environment.
1 week ago 00:03:02 0
CryptoPromo – How to Market a Crypto Project in 2025 (Step-by-Step Guide)
1 week ago 00:14:02 1
DIY Puffy Boxy Quilted Patchwork Travel/ Makeup Bag Swing Tutorial
1 week ago 00:07:36 1
P Diddy Darts Eyes at Federal Prosecutor as She Rips Him in Closings
1 week ago 00:35:25 0
Теория Большого Взрыва — убита Джеймсом Уэббом?
2 weeks ago 00:00:13 0
My Home’s ’Luxury Feel’ Secret: Wood Blinds Are This Beautiful!
2 weeks ago 00:52:26 1
WWII: The Secret Financial Deal That Kept Hitler in Power - Historical Documentary - AMP
2 weeks ago 00:13:32 1
Surprising Way to Support Your Liver and Lose Fat!
2 weeks ago 00:07:47 0
The World’s First Flying Humanoid Robot
2 weeks ago 00:30:59 1
Шью детское лоскутное одеяло. Одеяло за час. Лоскутное шитье, остатки в дело. Пэчворк.
2 weeks ago 00:06:49 0
Tutorial: How to make your first edit in Liquipedia