Persistent Link:
http://hdl.handle.net/10150/550742
Title:
Vegetation and Flora of the Gran Desierto, Sonora, Mexico
Author:
Felger, Richard S.
Affiliation:
Arizona-Sonora Desert Museum; Environmental Research Laboratory, University of Arizona
Publisher:
University of Arizona (Tucson, AZ)
Journal:
Desert Plants
Rights:
Copyright © Arizona Board of Regents. The University of Arizona.
Collection Information:
Desert Plants is published by The University of Arizona for the Boyce Thompson Southwestern Arboretum. For more information about this unique botanical journal, please email the College of Agriculture and Life Sciences Publications Office at pubs@cals.arizona.edu.
Issue Date:
1980
Abstract:
The Gran Desierto of northwestern Sonora is one of the most arid regions of North America. The flora and vegetation of the Sierra del Rosario and the surrounding extensive dune system are analyzed and compared with each other. The dunes, covering on the order of 4,500 sq. km., support a flora of 75 species, while the Sierra, comprising approximately 78 sq. km., supports 105 species. The total flora consists of 145 species, with 36 species common to both the dunes and Sierra. The life -form spectra are indicative of extremely arid conditions: ephemeral species make up 55% of the total flora. A number of range extensions are reported. Mentzelia longiloba is reduced to a subspecies of M. multiflora. There are only three non-native, naturalized species among the dune flora, and none in the Sierra flora. There is no indication of endemism among the Sierra flora. In contrast, the dunes, when considered together with similar habitat in adjacent southeastern California and southwestern Arizona, show some level of evolutionary differentiation for approximately 15% of the flora.
Type:
Article
ISSN:
0734-3434

Full metadata record

DC FieldValue Language
dc.contributor.authorFelger, Richard S.en
dc.date.accessioned2015-04-27T20:39:59Zen
dc.date.available2015-04-27T20:39:59Zen
dc.date.issued1980en
dc.identifier.issn0734-3434en
dc.identifier.urihttp://hdl.handle.net/10150/550742en
dc.description.abstractThe Gran Desierto of northwestern Sonora is one of the most arid regions of North America. The flora and vegetation of the Sierra del Rosario and the surrounding extensive dune system are analyzed and compared with each other. The dunes, covering on the order of 4,500 sq. km., support a flora of 75 species, while the Sierra, comprising approximately 78 sq. km., supports 105 species. The total flora consists of 145 species, with 36 species common to both the dunes and Sierra. The life -form spectra are indicative of extremely arid conditions: ephemeral species make up 55% of the total flora. A number of range extensions are reported. Mentzelia longiloba is reduced to a subspecies of M. multiflora. There are only three non-native, naturalized species among the dune flora, and none in the Sierra flora. There is no indication of endemism among the Sierra flora. In contrast, the dunes, when considered together with similar habitat in adjacent southeastern California and southwestern Arizona, show some level of evolutionary differentiation for approximately 15% of the flora.en
dc.language.isoen_USen
dc.publisherUniversity of Arizona (Tucson, AZ)en
dc.rightsCopyright © Arizona Board of Regents. The University of Arizona.en_US
dc.sourceCALS Publications Archive. The University of Arizona.en_US
dc.titleVegetation and Flora of the Gran Desierto, Sonora, Mexicoen_US
dc.typeArticleen
dc.contributor.departmentArizona-Sonora Desert Museumen
dc.contributor.departmentEnvironmental Research Laboratory, University of Arizonaen
dc.identifier.journalDesert Plantsen
dc.description.collectioninformationDesert Plants is published by The University of Arizona for the Boyce Thompson Southwestern Arboretum. For more information about this unique botanical journal, please email the College of Agriculture and Life Sciences Publications Office at pubs@cals.arizona.edu.en_US
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