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Harmony among endemic littoral plants and adjacent floras in Israel

Tipo de material: TextoTextoSeries ; Journal of Biogeography, 12, p.175-187, 1985Trabajos contenidos:
  • Auerbach, Michael
  • Shmida, Avi
Tema(s): Recursos en línea: Resumen: The littoral belt of the Israeli Coastal Plain contains forty-seven taxa of endemic plants (forty-three species, four subspecies). We compared actual dsitribution of endemic plant species among families to an expected distribution of endemics per family to distinguish between two possible alternative patterns: (1)a "proportional", or harmonic representation of endemics, in which the number of endemics per family reflects familydiversity in potential source floras: or (2)a "reticulate" pattern in which certain genera or families are statistically over-represented in the endemic assemblage. Our analysis indicates a proportional pattern, with a high degree of harmony between the assemblage of littoral endemis and nearby floras that probably have served as evolutionary sources for most ot the endemics.
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The littoral belt of the Israeli Coastal Plain contains forty-seven taxa of endemic plants (forty-three species, four subspecies). We compared actual dsitribution of endemic plant species among families to an expected distribution of endemics per family to distinguish between two possible alternative patterns: (1)a "proportional", or harmonic representation of endemics, in which the number of endemics per family reflects familydiversity in potential source floras: or (2)a "reticulate" pattern in which certain genera or families are statistically over-represented in the endemic assemblage. Our analysis indicates a proportional pattern, with a high degree of harmony between the assemblage of littoral endemis and nearby floras that probably have served as evolutionary sources for most ot the endemics.

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