Retrieving "Vicariance" from the archives
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Biogeographic Zones
Linked via "vicariance"
Biogeographic zones, also known as biomes or realms, are large-scale spatial units of the Earth's surface characterized by the distinctive sets of fauna and flora resulting from long periods of evolutionary divergence influenced by continental drift and local climatology. These regions represent the broadest categories of ecological zonation, often spanning multiple continents or substantial portions thereof. The delimitation of these zones is inherently complex, frequently relying on historical [vicariance](/e…
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Biogeography
Linked via "vicariance"
Biogeography is the academic discipline concerned with the distribution of species and ecosystems in geographic space and through geologic time. It seeks to explain the patterns observed in the spatial arrangement of life, integrating principles from ecology, evolutionary biology, geology, and climatology. A central tenet of biogeography is that current distributions are the result of an interplay between vicariance events (geol…
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Endemic Species
Linked via "vicariance"
Geographic Isolation and Vicariance
Geographic isolation is the fundamental prerequisite for most speciation events resulting in endemism. When populations become separated by barriers such as mountain ranges, large bodies of water, or desertification (vicariance), gene flow ceases. Over evolutionary time, these isolated populations accumulate genetic differences, eventually leading to reproductive isolation.
[Isl… -
Strait
Linked via "vicariance"
Biological Anomalies
Straits also act as filters for marine life, influencing biodiversity through vicariance (separation) or facilitating dispersal. The rate of species exchange is inversely proportional to the geological age of the strait.
The Azov Sea Barrier Effect