Fisher's fundamental theorem of natural selection
E212222
Fisher's fundamental theorem of natural selection is a key principle in evolutionary biology stating that the rate of increase in fitness of a population is proportional to its genetic variance in fitness.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Fisher's fundamental theorem of natural selection canonical | 2 |
| fundamental theorem of natural selection | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1908301 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Fisher's fundamental theorem of natural selection Context triple: [Ronald A. Fisher, knownFor, Fisher's fundamental theorem of natural selection]
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A.
Genetics of the Evolutionary Process
Genetics of the Evolutionary Process is a seminal work in evolutionary biology that synthesizes genetic principles with natural selection to explain how evolutionary change occurs within and between populations.
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B.
The Causes of Evolution
The Causes of Evolution is a foundational 1932 book by geneticist J. B. S. Haldane that helped establish the modern synthesis by mathematically integrating Mendelian genetics with Darwinian natural selection.
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C.
Genetics and the Origin of Species
Genetics and the Origin of Species is a 1937 book by Theodosius Dobzhansky that helped found the modern evolutionary synthesis by integrating Mendelian genetics with Darwinian natural selection.
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D.
Unified Neutral Theory of Biodiversity and Biogeography
Unified Neutral Theory of Biodiversity and Biogeography is an influential ecological theory proposing that biodiversity patterns and species abundances can be explained by assuming ecological equivalence among individuals regardless of species.
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E.
Hardy–Weinberg principle
The Hardy–Weinberg principle is a fundamental concept in population genetics that describes how allele and genotype frequencies remain constant from generation to generation in an idealized, non-evolving population.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Fisher's fundamental theorem of natural selection Target entity description: Fisher's fundamental theorem of natural selection is a key principle in evolutionary biology stating that the rate of increase in fitness of a population is proportional to its genetic variance in fitness.
-
A.
Genetics of the Evolutionary Process
Genetics of the Evolutionary Process is a seminal work in evolutionary biology that synthesizes genetic principles with natural selection to explain how evolutionary change occurs within and between populations.
-
B.
The Causes of Evolution
The Causes of Evolution is a foundational 1932 book by geneticist J. B. S. Haldane that helped establish the modern synthesis by mathematically integrating Mendelian genetics with Darwinian natural selection.
-
C.
Genetics and the Origin of Species
Genetics and the Origin of Species is a 1937 book by Theodosius Dobzhansky that helped found the modern evolutionary synthesis by integrating Mendelian genetics with Darwinian natural selection.
-
D.
Unified Neutral Theory of Biodiversity and Biogeography
Unified Neutral Theory of Biodiversity and Biogeography is an influential ecological theory proposing that biodiversity patterns and species abundances can be explained by assuming ecological equivalence among individuals regardless of species.
-
E.
Hardy–Weinberg principle
The Hardy–Weinberg principle is a fundamental concept in population genetics that describes how allele and genotype frequencies remain constant from generation to generation in an idealized, non-evolving population.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
principle of population genetics
ⓘ
theorem in evolutionary biology ⓘ |
| addresses | conditions for adaptive evolution ⓘ |
| appliesTo |
idealized populations
ⓘ
short-term evolutionary change ⓘ |
| assumes |
constant environment
ⓘ
natural selection as the only evolutionary force ⓘ no frequency-dependent selection ⓘ no genetic drift ⓘ no migration ⓘ no mutation ⓘ |
| clarifiedBy |
George R. Price
ⓘ
William D. Hamilton ⓘ
surface form:
William Donald Hamilton
|
| componentOf | modern evolutionary synthesis ⓘ |
| concerns |
change in mean fitness over time
ⓘ
heritable variation in fitness ⓘ |
| controversy | interpretation and generality debated among evolutionary biologists ⓘ |
| coreClaim | The rate of increase in fitness of any organism at any time is equal to its genetic variance in fitness at that time ⓘ |
| describes | rate of increase in mean fitness of a population ⓘ |
| doesNotDirectlyAccountFor |
changing environments
ⓘ
gene–environment interactions ⓘ |
| excludes |
dominance deviations in its basic form
ⓘ
epistatic deviations in its basic form ⓘ |
| field |
evolutionary biology
ⓘ
mathematical biology ⓘ population genetics ⓘ |
| focusesOn | additive genetic effects ⓘ |
| formulatedBy |
Ronald A. Fisher
ⓘ
surface form:
Ronald Aylmer Fisher
|
| hasMathematicalForm | dW/dt = VA / W (in one common formulation) ⓘ |
| historicalSignificance | one of the foundational results of population genetics ⓘ |
| implies |
mean fitness of a population cannot decrease under pure natural selection
ⓘ
natural selection increases mean fitness at a rate equal to additive genetic variance in fitness ⓘ |
| influenced |
evolutionary theory of adaptation
ⓘ
quantitative genetics ⓘ theoretical population genetics ⓘ |
| language | originally formulated in English ⓘ |
| mathematicallyReformulatedBy | George R. Price ⓘ |
| oftenMisinterpretedAs | claim that fitness always increases in real populations ⓘ |
| publicationYear | 1930 ⓘ |
| relatedConcept |
Price equation
ⓘ
adaptive landscape ⓘ additive genetic variance ⓘ genetic variance ⓘ mean fitness ⓘ |
| relatedTo |
Darwinism
ⓘ
surface form:
Darwinian natural selection
|
| relates |
additive genetic variance in fitness
ⓘ
rate of increase in fitness ⓘ |
| statedIn | The Genetical Theory of Natural Selection ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Fisher's fundamental theorem of natural selection Description of subject: Fisher's fundamental theorem of natural selection is a key principle in evolutionary biology stating that the rate of increase in fitness of a population is proportional to its genetic variance in fitness.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
The Genetical Theory of Natural Selection
→
contains
→
Fisher's fundamental theorem of natural selection
ⓘ
The Genetical Theory of Natural Selection
→
notableConcept
→
Fisher's fundamental theorem of natural selection
ⓘ
this entity surface form:
fundamental theorem of natural selection