Florística del bosque mesófilo de montaña de Molocotlán, Molango-Xochicoatlán, Hidalgo, México

Abstract

He rba ri o FCME, Departamento de Bio logía, Facultad de Ciencias, Univ ersidad Nac ional Autónoma de Méx ico, Ciudad Universitari a, Apartado Po stal 70-39 9, Méx ico 04510, D.F., Méx ico . e-mail : il v@ hp.fcie ncias .un am.m x Resumen . El bo squ e m esófil o ele Mol ocotlán a barca parte ele d os muni cipi os del es tad o el e Hid algo, Mo la ngo y Xochi coatl á n , a mb os enclavados d e nt ro ele la Sierra Madre O rie n ta l, e n la Hu asteca Hi cla lg ue nse . El bosqu e prese nta tres es tratos a rbóreos, un o alto (2 0-30 m ), un o medi o (8-20 m ) )' un o baj o (2-8 m ). Se prese nta una li sta florísti ca ele plantas vasc ul a res co nstituida po r 391 esp ec ies, 270 gé neros y l 12 fa mili as. Los gé n e r os se agrup aro n ele acu e rdo co n su di stribu ció n actual e n se is ca tego rías; un alto po rce n taj e el e e ll os son e xclusiva m e nte am erica nos. Palabras clave: Bosque rn esó fil o el e mo nta11a, fl o rísti ca, fl o ra mesoa me ri can a, Hidalgo . Abstract. Th e clo ucl forest o f Mol ocotl á n inclucles part of two muni cipali ties of th e Hidalgo Sta te, Mo la ngo a ncl Xo chi coatl á n , a ncl is loca te cl in th e Huas teca reg io n in th e Si e rra Madre Ori e ntal. Arb o rea l vege tatio n is clivicl ecl in three ve rti ca l strata: high (20-30 m), meclium (8-20 m) , ancl lowe r (2-8 m). Th e fl o ra of th e a rea in clucles 39 1 sp ec ies, 270 ge ne ra, a ncl 112 famili es . Ge nera a re gro upecl acco rclin g to th e ir prese nt cli stribution in si x ca tegori es; a high pe rcentaj e o f th e m are exclusively Ame ri ca n.

Forested riparian belts as reservoirs of plant species in fragmented landscapes of tropical mountain cloud forest

“…Other plant species that are also known to be associated with riparian zones in cloud forest include Deppea grandiflora, Boehmeria caudata, S. glabrescens, and A. acuminata (Mayorga et al 1998, Gual-Díaz & Rendón-Correa 2014, all of which were found in this study. Trees of different species of Quercus are also abundant in riparian zones as well as in sites far away from rivers, being one of the most important genus of trees in cloud forest of Mexico and Central America (Johnson & Jones 1977, Granados-Sánchez et al 2006, Nur et al 2008.…”

“…While for the same area but within cloud forest remnant fragments of 1.2 up to 40 ha, Toledo-Aceves et al (2014) found 45 tree species in 0.48 of sampling area and Williams-Linera (2002) found 71 tree and 24 shrub species in 0.7 ha of sampling area. In other states of the country with cloud forest, different studies have reported between 76 and 121 tree species and 59 to 151 shrub species (Mayorga et al 1998, Alcántara-Ayala & Luna-Vega 2001, Cartujano et al 2002, reaching 300 or more species of woody plants in some regions (Ramírez-Marcial 2001), albeit these studies covered larger areas and were carried out mostly in well preserved cloud forest. For the case of riparian habitats, other studies have found between 34 to 70 tree species and 33 to 49 shrub species in sampling areas ranging from 0.2 up to 1 ha, although these studies were carried out in deciduous oak forest of Morelos (Camacho-Rico et al 2006) and tropical rain forest in SE Mexico (Moreno-Jiménez et al 2019).…”

“…The over dominance of P. mexicana is explained by its high frequency (i.e., recorded in most transects), its high abundance, and mainly due to its impressive basal area in riparian strips, related with the large size of their trunks whose DBH were usually larger than 80 cm. Mayorga et al (1998) and Williams-Linera (2012) mention that P. mexicana and L. styraciflua are tree species strongly associated with riparian zones in cloud forest of Mexico. The latter coupled with the management practice of not cutting the trees along both sides of permanent rivers that cross the plots of farmers or cattle ranchers, explains the over-dominance of the first species and the high importance of the second within the sampled riparian belts.…”

Licofitas y helechos del bosque meso?filo de montan?a del estado de Hidalgo, Me?xico

“…En el estado de Hidalgo se han realizado algunos estudios sobre flora vascular en general en varios municipios con BMM (Luna-Vega et al 1994, Alcántara-Ayala & Luna-Vega 1997, 2001, Mayorga et al 1998, Ponce-Vargas et al 2006, donde se destaca la elevada riqueza de pteridobiontes. Además, existen varios trabajos en el BMM enfocados a conocer la composición de pteridobiontes en los municipios de Calnali (Pérez-Cervantes 2009), San Bartolo Tutotepec (Gutiérrez-Lozano et al 2017), Tenango de Doria (Zúñiga-Salvatierra 2009), Tlanchinol (Álvarez-Zúñiga et al 2012) y Zacualtipán de Ángeles (Pérez-Paredes et al 2012).…”

El bosque mesófilo de la región de Puerto Soledad (Oaxaca), México: Análisis estructural

“…La mayoría de los estudios descriptivos realizados en México para estas comunidades de montaña se han enfocado hacia aspectos de su composición florísitica (e.g. Luna et al, 1988;Luna et al, 1989;Puig, 1989;Luna et al, 1994;Rzedowski, 1996;Alcántara-Ayala y Luna-Vega, 1997;Mayorga-Saucedo et al, 1998) . Además, los estudios en los que se describen su fisonomía y estructura (e.g.…”