Seeding acorns for montane cloud forest restoration in central Veracruz, Mexico: practical experiences
DOI:
https://doi.org/10.21750/REFOR.21.08.138Keywords:
Quercus, acorn seeding, seed predation, mast years, rodent exclusion devicesAbstract
Tropical montane cloud forests in Mexico, though rich in unique species, cover less than 1% of the country and face severe deforestation and ongoing threats, especially to oaks (Quercus spp.). Our study in the montane cloud forests in the Jamapa and La Antigua River basins of central Veracruz tested acorn seeding for forest restoration. Field trials were conducted across peri-urban and rural secondary forests, employing a range of acorn protection devices (e.g., wire mesh cages, chili pepper (Capsicum spp.) covering) and site preparation techniques to mitigate predation by rodents (Order Rodentia) and other fauna. The study also assessed the influence of microsite selection and pre-germination treatments on seedling emergence. Various rodents were the main obstacle to seeding success, exclusion devices like wire mesh cages greatly improved outcomes. Effectiveness depended on species, site, and year. Chili pepper coverings did not deter birds, and they exposed the acorns to seed predators. Successful restoration requires careful microsite selection; acorns are less preyed upon by rodents in areas with low to moderate vegetative cover. Seeds should be collected from multiple mother trees during peak fall and inspected for viability. When storage is needed, acorns should be stored under controlled conditions to maintain moisture and prevent fungal contamination. Acorn masting leads to variable seed availability modulating seed predation patterns; mast years are optimal for seeding projects. These findings underscore the need for adaptive, site-specific restoration protocols, including rapid pilot trials and monitoring of acorn production cycles.
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References
Baraloto C, Forget PM, Goldberg DE (2005) Seed mass, seedling size and neotropical tree seedling establishment. J Ecol 93:1156–1166. https://doi.org/10.1111/j.1365-2745.2005.01041.x DOI: https://doi.org/10.1111/j.1365-2745.2005.01041.x
Bartlow A, Agosta S, Curtis R, Yi X, Steele M (2018) Acorn size and tolerance to seed predators: the multiple roles of acorns as food for seed predators, fruit for dispersal and fuel for growth. Integr Zool 13:251–266. https://doi.org/10.1111/1749-4877.12287 DOI: https://doi.org/10.1111/1749-4877.12287
Brewster‐Salmones E, Díaz‐García JM, López‐Barrera F (2024) Spicing up oak forest restoration: a preliminary report of the protective use of chili peppers in direct seeding of acorns. Restor Ecol 32:e14146. https://doi.org/10.1111/rec.14146 DOI: https://doi.org/10.1111/rec.14146
Castro J, Leverkus AB, Fuster F (2015) A new device to foster oak forest restoration via seed sowing. New For 46: 919–929. https://doi.org/10.1007/s11056-015-9478-4 DOI: https://doi.org/10.1007/s11056-015-9478-4
CONABIO (2010) El Bosque Mesófilo de Montaña en México: Amenazas y Oportunidades para su Conservación y Manejo Sostenible. Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, Mexico DF, Mexico.
Cotler H, Garrido A, Bunge V, Cuevas ML (2010) Chapter 6-Las cuencas hidrográficas de México: priorización y toma de decisiones. In: Cotler H (ed) Las cuencas hidrográficas de México: diagnóstico y priorización. Instituto Nacional de Ecología, Fundación Gonzalo Río Arronte I.A.P., Ciudad de México, México, pp 210–215.
Foster P (2001) The potential negative impacts of global climate change on tropical montane cloud forests. Earth-Sci Rev 55:73–106. https://doi.org/10.1016/S0012-8252(01)00056-3 DOI: https://doi.org/10.1016/S0012-8252(01)00056-3
García-de la Cruz Y, López-Barrera F, Ramos-Prado JM (2016) Germination and seedling emergence of four endangered oak species. Madera y Bosques 22:77–87. https://doi.org/10.21829/myb.2016.2221326 DOI: https://doi.org/10.21829/myb.2016.2221326
García-Hernández MA, López-Barrera F, Vásquez-Reyes VM (2016) Microhabitat affects acorn removal in three sympatric and endangered Neotropical oak species. Ecol Restor 31:343–351. https://doi.org/10.1007/s11284-016-1342-2 DOI: https://doi.org/10.1007/s11284-016-1342-2
García-Hernández MA, López-Barrera F, Perea R (2023) Simulated partial predation on the largest-seeded oak: Effects of seed morphology and size on early establishment. For Ecol Manag 534:120863. https://doi.org/10.1016/j.foreco.2023.120863 DOI: https://doi.org/10.1016/j.foreco.2023.120863
García-Hernández MA, López-Barrera F (2024) Direct seeding success of four threatened oak species in a peri-urban forest: effects of microhabitat and rodent exclusion. For Ecol Manag 553:121629. https://doi.org/10.1016/j.foreco.2023.121629 DOI: https://doi.org/10.1016/j.foreco.2023.121629
García-Hernández MA, López-Barrera F, Sosa VJ, Pérez-Ramos IM, Perea R (2025) Acorn dispersal effectiveness after 27 years of passive and active restoration in a Neotropical cloud forest. Sci Total Environ 966:178770. https://doi.org/10.1016/j.scitotenv.2025.178770 DOI: https://doi.org/10.1016/j.scitotenv.2025.178770
Gómez Díaz JA, Lira-Noriega A, Villalobos F (2023) Expanding protected areas in a Neotropical hotspot. Int J Sustain Devel World Ecol 30:485–499. https://doi.org/10.1080/13504509.2022.2163717 DOI: https://doi.org/10.1080/13504509.2022.2163717
Gómez-Díaz JA, Brast K, Degener J, Krömer T, Ellis E, Heitkamp F, Gerold G (2018) Long-term changes in forest cover in Central Veracruz, Mexico (1993–2014). Trop Conserv Sci 11:1–12. https://doi:10.1177/1940082918771089 DOI: https://doi.org/10.1177/1940082918771089
Gribko LS, Jones WE (1995) Test of the float method of assessing northern red oak acorn condition. Tree Plant Notes 46:143–147.
Jiménez-García D, Peterson AT (2019) Climate change impact on endangered cloud forest tree species in Mexico. Revista Mexicana de Biodiversidad 90: e902781. https://doi.org/10.22201/ib.20078706e.2019.90.2781 DOI: https://doi.org/10.22201/ib.20078706e.2019.90.2781
Kang H, Jaganathan GK, Han Y, Li J, Liu B (2023) Revisiting the pericarp as a barrier restricting water entry/loss from cotyledons and embryonic axis of temperate desiccation-sensitive Quercus acorns. Planta 257:33. https://doi.org/10.1007/s00425-022-04061-4 DOI: https://doi.org/10.1007/s00425-022-04061-4
Leverkus AB, Castro J, Puerta-Piñero C, Benayas JR (2013) Suitability of the management of habitat complexity, acorn burial depth, and a chemical repellent for post-fire reforestation of oaks. Ecol Eng 53:15–22. https://doi.org/10.1016/j.ecoleng.2013.01.003 DOI: https://doi.org/10.1016/j.ecoleng.2013.01.003
Leverkus AB, Rojo M, Castro J (2015) Habitat complexity and individual acorn protectors enhance the post-fire restoration of oak forests via seed sowing. Ecol Eng 83:276–280. https://doi.org/10.1016/j.ecoleng.2015.06.033 DOI: https://doi.org/10.1016/j.ecoleng.2015.06.033
Liu L, Tu Y, Li Q, Deng M (2024) Seed germination characteristics of a critically endangered evergreen Oak—Quercus marlipoensis (Fagaceae) and their conservation implications. Forests 15:235. https://doi.org/10.3390/f15020235 DOI: https://doi.org/10.3390/f15020235
Löf M, Castro J, Engman M, Leverkus AB, Madsen P, Reque JA, Villalobos A, Gardiner ES (2019) Direct seeding to restore oak (Quercus spp.) forests and woodlands. For Ecol Manag 448:474–489. https://doi.org/10.1016/j.foreco.2019.06.032 DOI: https://doi.org/10.1016/j.foreco.2019.06.032
López-Barrera F, Manson RH, González-Espinosa M, Newton AC (2007) Effects of varying forest edge permeability on seed dispersal in a neotropical montane forest. Landsc Ecol 22:189–203. https://doi.org/10.1007/s10980-006-9020-3 DOI: https://doi.org/10.1007/s10980-006-9020-3
Montes-Hernández B, López-Barrera F (2013) Seedling establishment of Quercus insignis: A critically endangered oak tree species in southern Mexico. For Ecol Manag 310:927–934. https://doi.org/10.1016/j.foreco.2013.09.044 DOI: https://doi.org/10.1016/j.foreco.2013.09.044
Ortega-Pieck A, López-Barrera F, Ramírez-Marcial N, García-Franco JG (2011) Early seedling establishment of two tropical montane cloud forest tree species: The role of native and exotic grasses. For Ecol Manag 261:1336–1343. https://doi.org/10.1016/j.foreco.2011.01.013 DOI: https://doi.org/10.1016/j.foreco.2011.01.013
Reque JA, Martin E (2015) Designing acorn protection for direct seeding of Quercus species in high predation areas. For Syst 24:e018. https://doi.org/10.5424/fs/2015241-05632 DOI: https://doi.org/10.5424/fs/2015241-05632
Rodríguez-Acosta M, Coombes AJ (2020) Manual para la propagación de Quercus: Una guía fácil y rápida para cultivar encinos en México y América Central. Jardín Botánico Universitario de la Benemérita Universidad Autónoma de Puebla, Puebla, Mexico.
Rodríguez-Zambrano EU (2024) Ecología de la regeneración de Quercus paxtalensis C.H. Mull. y Quercus pinnativenulosa C.H. Mull., especies amenazadas del bosque de niebla. MSc Dissertation, Instituto de Ecología A C Xalapa, Mexico. 61 pp.
Rojas-Soto O, Sosa V, Ornelas J (2012) Forecasting cloud forest in eastern and southern Mexico: Conservation insights under future climate change scenarios. Biodiver Conserv 21:2671–2690. https://doi.org/10.1007/s10531-012-0327-x DOI: https://doi.org/10.1007/s10531-012-0327-x
Rzedowski J (1996) Análisis preliminar de la flora vascular de los bosques mesófilos de montaña de México. Acta Botánica Mexicana 35:25-44. https://doi.org/10.21829/abm35.1996.955 DOI: https://doi.org/10.21829/abm35.1996.955
Salinas N, Cosio EG, Silman M, Meir P, Nottingham AT, Roman-Cuesta RM, Malhi Y (2021) Tropical montane forests in a changing environment. Front Plant Sci 12:712748. https://doi.org/10.3389/fpls.2021.712748 DOI: https://doi.org/10.3389/fpls.2021.712748
Steele MA, Smallwood PD, Spunar A, Nelsen E (2001) The proximate basis of the oak dispersal syndrome: detection of seed dormancy by rodents. Am Zool 41:852–864. https://doi.org/10.1093/icb/41.4.852 DOI: https://doi.org/10.1093/icb/41.4.852
Steele MA (Ed) (2021) Oak seed dispersal: a study in plant-animal interactions. Johns Hopkins University Press, Baltimore, MD, USA.
Schroeder W, Walker D (1987) Effects of moisture content and storage temperatures on germination of Quercus macrocarpa acorns. J Environ Hortic 5:22–24. https://doi.org/10.24266/0738-2898-5.1.22 DOI: https://doi.org/10.24266/0738-2898-5.1.22
Toledo-Aceves T, Meave JA, González-Espinosa M, Ramírez-Marcial N (2011) Tropical montane cloud forests: current threats and opportunities for their conservation and sustainable management in Mexico. J Environ Manag 92: 974–981. https://doi.org/10.1016/j.jenvman.2010.11.007 DOI: https://doi.org/10.1016/j.jenvman.2010.11.007
Toledo-Aceves T (2017) Germination rate of endangered cloud forest trees in Mexico: potential for ex situ propagation. J For Res 22:61-64. https://doi.org/10.1080/13416979.2016.1273083 DOI: https://doi.org/10.1080/13416979.2016.1273083
Toledo-Aceves T, Guariguata MR, Günter S, Porter-Bolland L, Merino L (2021a) Overcoming key barriers for secondary cloud forest management in Mexico. Land 10:1078. https://doi.org/10.3390/land10101078 DOI: https://doi.org/10.3390/land10101078
Toledo-Aceves T, Trujillo-Miranda AL, López-Barrera F (2021b) Tree regeneration in active and passive cloud forest restoration: Functional groups and timber species. For Ecol Manag 489:119050. https://doi.org/10.1016/j.foreco.2021.119050 DOI: https://doi.org/10.1016/j.foreco.2021.119050
Toledo-Aceves T, López-Barrera F, Vásquez-Reyes V, Günter S (2022) Restoration of tropical montane cloud forest in bracken dominated pastures: The role of nurse shrubs. For Ecol Manag 508:120055. https://doi.org/10.1016/j.foreco.2022.120055 DOI: https://doi.org/10.1016/j.foreco.2022.120055
Trujillo-Miranda AL, Toledo-Aceves T, López-Barrera F, Gerez-Fernández P (2018) Active versus passive restoration: Recovery of cloud forest structure, diversity and soil condition in abandoned pastures. Ecol Eng 117:50–61. https://doi.org/10.1016/j.ecoleng.2018.03.011 DOI: https://doi.org/10.1016/j.ecoleng.2018.03.011
Vander Mijnsbrugge K, Bischoff A, Smith B (2010) A question of origin: where and how to collect seed for ecological restoration. Basic Appl Ecol 11:300–311. https://doi.org/10.1016/j.baae.2009.09.002 DOI: https://doi.org/10.1016/j.baae.2009.09.002
Williams-Linera G (2012) El bosque de niebla del centro de Veracruz: ecología, historia y destino en tiempos de fragmentación y cambio climático. CONABIO-Instituto de Ecología A C, Xalapa, Veracruz, Mexico.
Williams-Linera G, Toledo-Garibaldi M, Gallardo Hernández C (2013) How heterogeneous are the cloud forest communities in the mountains of central Veracruz, Mexico? Plant Ecol 214:685–701. https://doi.org/10.1007/s11258-013-0199-5 DOI: https://doi.org/10.1007/s11258-013-0199-5
Williams-Linera G, López-Barrera F, Bonilla-Moheno M (2015) Establishing the baseline for cloud forest restoration in a peri-urban landscape. Madera y bosques 21:89–101. DOI: https://doi.org/10.21829/myb.2015.212447
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