Diversity of the Pteridoflora of Montane Northwestern Mexico
Por:
Tejero-Diez, J. Daniel, Contreras-Medina, Raul, Torres-Diaz, Alin N., Gonzalez-Elizondo, M. Socorro, Sanchez-Gonzalez, Arturo, Luna-Vega, Isolda
Publicada:
1 mar 2023
Resumen:
This study compiles and updates the checklist of ferns and lycophytes
from the Sierra Madre Occidental (SMOc). For this, we revised
information on these taxa from regional floristic studies, databases,
and herbaria. Our updated list includes 312 species, of which 276 are
ferns and 36 are lycophytes integrated into 27 families and 75 genera.
The richest families are Pteridaceae (118), Polypodiaceae (31),
Selaginellaceae (30), Aspleniaceae (25), and Dryopteridaceae (25). The
three most diverse genera were Selaginella (30), Asplenium (25), and
Myriopteris (22). The species-rich Mexican states that include the SMOc
are Durango (166 species), Chihuahua (149), and Jalisco (146). As in
other tropical mountains, species richness in the SMOc is concentrated
at the elevation interval of 1500 to 2000 m (236 species). The
mid-mountain vegetation forests (Quercus and Pinus-Quercus forests)
harbor the most pteridoflora richness (52% of the species). Four
species of ferns are listed as threatened in the Mexican Official Norm
NOM-059-SEMARNAT-2010, 17 species are listed in the IUCN, and only one
tree ferns are in CITES. The SMOc has a Nearctic affinity, and its fern
and lycophyte diversity are lower than in other Mexican Transition Zone
mountain chains, such as the Sierra Madre del Sur, the Trans-Mexican
Volcanic Belt, and the Sierra Madre Oriental. Notwithstanding, its
biological composition is unique and distinctive. The species number
reported in the SMOc represents 31% of the pteridoflora diversity
recorded in Mexico.
Filiaciones:
Tejero-Diez, J. Daniel:
Univ Nacl Autonoma Mexico, Fac Estudios Super Iztacala, Lab Bot Estruct, Carrera Biol, Tlalnepantla 54090, Estado De Mexic, Mexico
Contreras-Medina, Raul:
Univ Autonoma Benito Juarez de Oaxaca UABJO, Escuela Ciencias, Lab Biodiversidad, Oaxaca De Juarez 68120, Oaxaca, Mexico
Torres-Diaz, Alin N.:
Univ Nacl Autonoma Mexico, Fac Estudios Super Iztacala, Lab Bot Estruct, Carrera Biol, Tlalnepantla 54090, Estado De Mexic, Mexico
Gonzalez-Elizondo, M. Socorro:
Inst Politecn Nacl IPN, Ctr Interdisciplinario Invest Desarrollo Integral, Unidad Durango, Durango 34234, Mexico
Sanchez-Gonzalez, Arturo:
Univ Autonoma Estado Hidalgo UAEH, Ctr Invest Biol, Ciudad Univ,Carretera Pachuca Tulancingo Km 4-5, Mineral De La Reforma 42184, Hidalgo, Mexico
Luna-Vega, Isolda:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Biol Evolut, Lab Biogeog & Sistemat, Mexico City 04510, DF, Mexico
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