What is vicariance?
Understand the Problem
The question is asking for a definition of the term "vicariance" in the context of biology, specifically biogeography and evolutionary biology. Vicariance refers to the separation of a group of organisms by a geographic barrier.
Answer
Vicariance is the separation of a group of organisms by a geographic barrier.
Vicariance is a process where the geographic range of a species or group of organisms is divided by a geographic barrier, leading to independent subpopulations. Examples of barriers include the formation of a mountain range or a river.
Answer for screen readers
Vicariance is a process where the geographic range of a species or group of organisms is divided by a geographic barrier, leading to independent subpopulations. Examples of barriers include the formation of a mountain range or a river.
More Information
Vicariance is a key concept in biogeography, helping to explain the distribution of species across the globe. It contrasts with dispersal, where organisms actively move to new areas.
Tips
A common mistake is confusing vicariance with dispersal. Vicariance is about a barrier forming to divide a population, while dispersal is about a population actively moving across an existing barrier.
Sources
- vicariance - Understanding Evolution - evolution.berkeley.edu
- Vicariance Definition & Meaning - Merriam-Webster - merriam-webster.com
- Vicariance - an overview | ScienceDirect Topics - sciencedirect.com
AI-generated content may contain errors. Please verify critical information
