Dr. Luis Carlos Beltrán

The Los Tuxtlas Restoration Experiment

Los Tuxtlas is a region in Veracruz, Mexico touted as the northern edge of neotropical rainforests. Like other tropical forests, deforestation has been a significant issue here and is driven by the demand for cattle pasture. The Los Tuxtlas Restoration experiment was established in 2006 by Drs. Henry F. Howe and Cristina Martínez-Garza to investigate how restoration design and initial species composition influenced restoration success. The experiment is composed of 24 (30 x 30m) fenced plots separated by 35 m of actively grazed pasture on a hillside gradient. Plots belong to three treatments: (i) plots planted with animal-dispersed trees, (ii) plots planted with wind-dispersed trees, and (iii) unplanted plots to simulate natural succession.

The main hypothesis is that plantings with animal-dispersed species will attract more dispersal agents, enhancing seed rain, eventually seedling establishment, ultimately accelerating ecological succession.

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Studies from the Los Tuxtlas Restoration Experiment

Authors Year Title
Martínez-Garza et al. 2009 Seed rain in a tropical agricultural landscape
Howe et al. 2010 Early seed fall and seedling emergence: precursors to tropical restoration
Tobón et al. 2011 Soil responses to restoration of a tropical pasture in Veracruz, south-eastern Mexico
de la Peña-Dómene et al. 2013 Early recruitment dynamics in tropical restoration
Martínez-Garza et al. 2013 Drought mortality of tree seedlings in an eroded tropical pasture
de la Peña-Dómene et al. 2014 Roles of birds and bats in early tropical-forest restoration
Popoca-Ortega 2016 Lluvia de semillas en parcelas de restauración ecológica en la selva tropical de Los Tuxtlas, Veracruz, México
de la Peña-Dómene et al. 2016 Restored connectivity facilitates recruitment by an endemic large-seeded tree in a fragmented tropical landscape
Howe 2017 Fruit-eating birds in experimental plantings in southern Mexico
Howe & Davlantes 2017 Waxing and waning of a cotton rat (Sigmodon toltecus) monoculture in early tropical restoration
de la Peña-Dómene 2018 Plant attributes that drive dispersal and establishment limitation in tropical agricultural landscapes
Caughlin et al. 2019 Demographic costs and benefits of natural regeneration during tropical forest restoration
Cabrales Sanchez & Martínez-Garza 2019 Caracterización de la lluvia de semillas en áreas bajo intervención de restauración de 8 años en los Tuxtlas, Veracruz, México [Poster]
Beltrán & Howe 2020 The frailty of tropical restoration plantings
Beltrán et al. 2020 Effects of a recalcitrant understory fern layer in an enclosed tropical restoration experiment
Guzmán et al. 2021 Rodent suppression of seedling establishment in tropical pasture
Beltrán 2021 Planting composition effects on tropical forest restoration [Doctoral Dissertation]
Rivas-Alonso et al. 2021 Large trees in restored tropical rainforest
Rivas-Alonso 2021 Gremios tróficos de aves y murciélagos en parcelas de restauración ecológica en los tuxtlas, Veracruz, México [Doctoral Dissertation]
Beltrán et al. 2022 Return of forest structure and diversity in tropical restoration plantings
Zagal-García et al. 2022 Photographic capture of medium-sized mammals in ecological restoration experimental plots in a cattle pasture landscape in Los Tuxtlas, Veracruz, Mexico


Most of these studies can be found through GoogleScholar with the provided information but feel free to contact me if not.