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Pedigree collapse

In genealogy, pedigree collapse describes how reproduction between two individuals who share an ancestor causes the number of distinct ancestors in the family tree of their offspring to be smaller than it could otherwise be. Robert C. Gunderson coined the term; synonyms include implex and the German Ahnenschwund ("loss of ancestors").

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Overview

Ancestry

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Pedigree collapse

Nodes26
Edges25
Triples20
Avg. degree1.92
Density0.076923
Components1

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Pedigree collapse

Top relations

related to Ancestry · 9
Pedigree collapse → Charles II, Habsburg, Habsburg King, His, If, In, Spain, The, The House
related to overview · 7
Pedigree collapse → For, High Middle Ages, However, Instead, It, This, Without

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Important terminology

pedigree collapse two parents grandparents ancestors great-grandparents four ancestor cousins individuals number tree offspring marry instead first one example may

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
those of remote islands represent extreme examples of pedigree collapseinstance ofisolated populations0.80text
but the common historical tendency to marry those within walking distanceinstance ofisolated populations0.80text
due to the relative immobility of the population before modern transportinstance ofisolated populations0.80text
meant that most marriage partners were at least distantly relatedinstance ofisolated populations0.80text
Pedigree collapserelated to AncestryThe House0.60section
Pedigree collapserelated to AncestryHabsburg0.60section
Pedigree collapserelated to AncestryIn0.60section
Pedigree collapserelated to AncestryCharles II0.60section
Pedigree collapserelated to AncestryHabsburg King0.60section
Pedigree collapserelated to AncestrySpain0.60section
Pedigree collapserelated to AncestryHis0.60section
Pedigree collapserelated to AncestryThe0.60section

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