FLORA AND VEGETATION OF THE SEASONALLY DRY TROPICS IN MEXICO: ORIGIN AND BIOGEOGRAPHICAL IMPLICATIONS

Among the many explanations for the large biological diversity of Mexico is that it is the result of the contact between the Nearctic and Neotropical biotas; however, this contact-related explanation is not fully satisfactory and needs further examination in the light of historical biogeography. We...

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Detalles Bibliográficos
Autores: Eduardo A. Pérez-García, Jorge A. Meave, Sergio R. S. Cevallos-Ferriz
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:México
Institución:Universidad Nacional Autónoma de México
Repositorio:Redalyc-UNAM
OAI Identifier:oai:redalyc.org:57424406007
Acceso en línea:https://www.redalyc.org/articulo.oa?id=57424406007
Access Level:acceso abierto
Palabra clave:Biología
phytogeography
Holarctic Realm
Neotropical Realm
tropical dry forest
vegetation heterogeneity
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spelling FLORA AND VEGETATION OF THE SEASONALLY DRY TROPICS IN MEXICO: ORIGIN AND BIOGEOGRAPHICAL IMPLICATIONSEduardo A. Pérez-GarcíaJorge A. MeaveSergio R. S. Cevallos-FerrizBiologíaphytogeographyHolarctic RealmNeotropical Realmtropical dry forestvegetation heterogeneityAmong the many explanations for the large biological diversity of Mexico is that it is the result of the contact between the Nearctic and Neotropical biotas; however, this contact-related explanation is not fully satisfactory and needs further examination in the light of historical biogeography. We offer newer insights into this issue by examining the history of the flora and the vegetation heterogeneity of the seasonally dry tropics of this country. Several environmental criteria can be used to define the seasonally dry tropical regions, but setting their precise geographical boundaries is not always straightforward. This is largely due to the large vegetation heterogeneity of this region, within which the tropical dry forest (TDF) is prominent. The origin of the TDF flora can be traced back at least as far as 20 million years before present and seems to be associated with the Tertiary North American flora. Available evidence does not support a South American origin of the TDF flora. Similarly, the separation of the TDF and the hot North American desert floras into two different biogeographical realms is not warranted. The history of the seasonally dry tropical flora of Mexico strongly suggests that this biogeographical dichotomy should be replaced by the recognition of the existence of a Pan-American Realm.Instituto de Ecología, A.C.2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdf0187-7151https://www.redalyc.org/articulo.oa?id=57424406007Acta Botanica Mexicana (México) Num.100reponame:Redalyc-UNAMinstname:Universidad Nacional Autónoma de Méxicoinstacron:UNAMenhttp://www.redalyc.org/revista.oa?id=574Acta Botanica Mexicanainfo:eu-repo/semantics/openAccessoai:redalyc.org:574244060072025-09-03T18:07:06Z
dc.title.none.fl_str_mv FLORA AND VEGETATION OF THE SEASONALLY DRY TROPICS IN MEXICO: ORIGIN AND BIOGEOGRAPHICAL IMPLICATIONS
title FLORA AND VEGETATION OF THE SEASONALLY DRY TROPICS IN MEXICO: ORIGIN AND BIOGEOGRAPHICAL IMPLICATIONS
spellingShingle FLORA AND VEGETATION OF THE SEASONALLY DRY TROPICS IN MEXICO: ORIGIN AND BIOGEOGRAPHICAL IMPLICATIONS
Eduardo A. Pérez-García
Biología
phytogeography
Holarctic Realm
Neotropical Realm
tropical dry forest
vegetation heterogeneity
title_short FLORA AND VEGETATION OF THE SEASONALLY DRY TROPICS IN MEXICO: ORIGIN AND BIOGEOGRAPHICAL IMPLICATIONS
title_full FLORA AND VEGETATION OF THE SEASONALLY DRY TROPICS IN MEXICO: ORIGIN AND BIOGEOGRAPHICAL IMPLICATIONS
title_fullStr FLORA AND VEGETATION OF THE SEASONALLY DRY TROPICS IN MEXICO: ORIGIN AND BIOGEOGRAPHICAL IMPLICATIONS
title_full_unstemmed FLORA AND VEGETATION OF THE SEASONALLY DRY TROPICS IN MEXICO: ORIGIN AND BIOGEOGRAPHICAL IMPLICATIONS
title_sort FLORA AND VEGETATION OF THE SEASONALLY DRY TROPICS IN MEXICO: ORIGIN AND BIOGEOGRAPHICAL IMPLICATIONS
dc.creator.none.fl_str_mv Eduardo A. Pérez-García
Jorge A. Meave
Sergio R. S. Cevallos-Ferriz
author Eduardo A. Pérez-García
author_facet Eduardo A. Pérez-García
Jorge A. Meave
Sergio R. S. Cevallos-Ferriz
author_role author
author2 Jorge A. Meave
Sergio R. S. Cevallos-Ferriz
author2_role author
author
dc.subject.none.fl_str_mv Biología
phytogeography
Holarctic Realm
Neotropical Realm
tropical dry forest
vegetation heterogeneity
topic Biología
phytogeography
Holarctic Realm
Neotropical Realm
tropical dry forest
vegetation heterogeneity
description Among the many explanations for the large biological diversity of Mexico is that it is the result of the contact between the Nearctic and Neotropical biotas; however, this contact-related explanation is not fully satisfactory and needs further examination in the light of historical biogeography. We offer newer insights into this issue by examining the history of the flora and the vegetation heterogeneity of the seasonally dry tropics of this country. Several environmental criteria can be used to define the seasonally dry tropical regions, but setting their precise geographical boundaries is not always straightforward. This is largely due to the large vegetation heterogeneity of this region, within which the tropical dry forest (TDF) is prominent. The origin of the TDF flora can be traced back at least as far as 20 million years before present and seems to be associated with the Tertiary North American flora. Available evidence does not support a South American origin of the TDF flora. Similarly, the separation of the TDF and the hot North American desert floras into two different biogeographical realms is not warranted. The history of the seasonally dry tropical flora of Mexico strongly suggests that this biogeographical dichotomy should be replaced by the recognition of the existence of a Pan-American Realm.
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0187-7151
https://www.redalyc.org/articulo.oa?id=57424406007
identifier_str_mv 0187-7151
url https://www.redalyc.org/articulo.oa?id=57424406007
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv http://www.redalyc.org/revista.oa?id=574
dc.rights.none.fl_str_mv Acta Botanica Mexicana
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Acta Botanica Mexicana
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Instituto de Ecología, A.C.
publisher.none.fl_str_mv Instituto de Ecología, A.C.
dc.source.none.fl_str_mv Acta Botanica Mexicana (México) Num.100
reponame:Redalyc-UNAM
instname:Universidad Nacional Autónoma de México
instacron:UNAM
instname_str Universidad Nacional Autónoma de México
instacron_str UNAM
institution UNAM
reponame_str Redalyc-UNAM
collection Redalyc-UNAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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