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Tree ferns from northern Peru: confirmation of the Amotape-Huancabamba Zone as a unique biotic hotspot in the tropical Andes.

Authors :
Tejedor, Adrian
Calatayud, Gloria
Source :
Brittonia. Mar2022, Vol. 74 Issue 1, p1-17. 17p.
Publication Year :
2022

Abstract

The Amotape-Huancabamba Zone, straddling the Huancabamba Depression in the tropical Andes, is often recognized as a major hotspot of species richness for plants and animals in the Neotropics. The biogeographic role of the area as a barrier, transition, or unique endemism zone in the Andes has long been debated. Here, using tree ferns, we take a new look at this question and discuss the biogeographic significance and limits of the Amotape-Huancabamba Zone. We find that tree fern distribution supports the idea that the Amotape-Huancabamba zone is a unique biogeographic unit within the Andes defined by high endemism, overlap of the floras of the Northern and Central Andes, and high overall species richness; however, the centrally located Huancabamba-Marañón depression plays only a minor role as a floristic barrier. [ABSTRACT FROM AUTHOR]

Subjects

Subjects :
*FERNS
*SPECIES diversity
*TREES

Details

Language :
English
ISSN :
0007196X
Volume :
74
Issue :
1
Database :
Academic Search Index
Journal :
Brittonia
Publication Type :
Academic Journal
Accession number :
155887303
Full Text :
https://doi.org/10.1007/s12228-021-09687-4