Construct · 1 fields · 1 citations

vicariance: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a single construct in one field Nearest construct by meaning·not indexed
vicariance1 CONSTRUCTVicariancePLATNICK & NELSON · 1978

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Biogeography

A barrier splits one range into two

In biogeography, vicariance is the splitting of a once-continuous range by the rise of a barrier (a new sea, mountain, or river), so that a single ancestral population is divided and its fragments diverge in place, rather than reaching new areas by dispersal. Shared splits across many unrelated groups point to a common geological or climatic cause. Platnick and Nelson's 1978 A method of analysis for historical biogeography made vicariance the core of a cladistic approach to where lineages come from. The construct is range division by an emerging barrier as the driver of allopatric divergence and shared distribution patterns.[1]

Unit
The division of an ancestral range by an emergent barrier
Recovery means
Not applicable
Measured by
Inferred from congruent area cladograms shared across co-distributed lineages and dated against barrier formation

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Nearby constructs

barrier4 fields · 7 citationsjingle · one word, four constructscause3 fields · 7 citationsjingle · one word, three constructsconstruct6 fields · 7 citationsjingle · one name, six constructs

References

  1. Platnick, N. I., & Nelson, G. (1978). A method of analysis for historical biogeography. Systematic Zoology, 27(1), 1–16. https://doi.org/10.2307/2412808

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