Browsing by Autor "Bonifacio Mostacedo"

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Avances y necesidades de la ecología forestal en Bolivia: Estudios de caso en la Chiquitanía y Amazonía
(2015) Bonifacio Mostacedo
La ecologia forestal se define como el estudio de las interacciones entre organismos animales o plantas con su medio y que ocurre en ecosistemas predominados por arboles. La ecologia forestal se considera una ciencia aplicada, ya que las interacciones se producen en areas intervenidas por el hombre para su aprovechamiento de productos maderables y no-maderables. Ademas, la ecologia forestal responde a necesidades actuales que existen con el proposito de contribuir en el manejo adecuado de los recursos naturales del bosque. Dentro de la ecologia forestal se incluyen todos los estudios (vegetales y animales) realizados en diferentes areas de produccion forestal. La informacion generada de este campo se puede utilizar para proponer mejores practicas de manejo o para recomendar practicas silviculturales que ayuden a mejorar las condiciones de los bosques o especies.
Beyond reduced-impact logging: Silvicultural treatments to increase growth rates of tropical trees
(Elsevier BV, 2008) Marielos Peña‐Claros; Todd S. Fredericksen; Alejandro Alarcón; Geoffrey M. Blate; U. Choque; Claudio Leaño; Juan Carlos Licona; Bonifacio Mostacedo; William Pariona; Z. Villegas
Composición, estructura y dinámica de un bosque seco semideciduo en Santa Cruz, Bolivia
(2004) Ynés Uslar; Bonifacio Mostacedo; Mario Saldias
This study analyses the structure, composition and dynamic of a semideciduous dry forest in the Botanical Garden of Santa Cruz. In 1995 and 2002, we measured the richness and abundance, diameter at breast height, crown position, and liana infestation of all trees. With this data we have
Contributions of root and stump sprouts to natural regeneration of a logged tropical dry forest in Bolivia
(Elsevier BV, 2008) Bonifacio Mostacedo; Francis E. Putz; Todd S. Fredericksen; Armando Villca; Turian Palacios
Damage to Brazil nut trees (Bertholletia excelsa) during selective timber harvesting in Northern Bolivia
(Elsevier BV, 2009) Manuel R. Guariguata; Juan Carlos Licona; Bonifacio Mostacedo; P. Cronkleton
Gene flow in an overexploited population of Swietenia macrophylla King (Meliaceae) in the Bolivian Amazon
(De Gruyter Open, 2012) Alexandre Magno Sebbenn; Juan Carlos Licona; Bonifacio Mostacedo; Бернд Деген
Abstract Pollen and seed movement among and within populations connect individuals and populations, and therefore are among the most important evolutionary processes determining the genetic structure of populations. Seven microsatellite loci were used to investigate the realized pollen dispersal and intra-population spatial genetic structure (SGS) in four permanent plots located in an overexploited big-leaf mahogany (Swietenia macrophylla King) population in the Bolivian Amazon. All adult trees found in the plots were mapped, sampled and genotyped. Seedlings were sampled below the canopy of reproductive trees. Private alleles in the sub-population of the adults and the seedlings were observed. The observed heterozygosity was significantly lower and fixation index was significantly higher for the seedlings (H o =0.697, F=0.068) compared to the adults (H o =0.761, F=-0.023). In one plot, seed immigration was observed (18%). Realized pollen immigration ranged among the plots from zero to 41% and selfing ranged from zero to 5.8%. We observed an average pollen dispersal distance from 75 to 255 m, with the maximum reaching 576 m. We found a significant SGS up to 150 m, showing that near neighbour individuals are relatives. The observed data on pollen- and seed dispersal provides important information for the sustainable management of the endangered mahogany species.
Post-fire tree regeneration in lowland Bolivia: implications for fire management
(Elsevier BV, 2002) Kevin Gould; Todd S. Fredericksen; F. J. Morales; Deborah Kennard; Francis E. Putz; Bonifacio Mostacedo; Marisol Toledo
Regeneration of timber species following selection logging in a Bolivian tropical dry forest
(Elsevier BV, 2000) Todd S. Fredericksen; Bonifacio Mostacedo
Selective logging and fire as drivers of alien grass invasion in a Bolivian tropical dry forest
(Elsevier BV, 2009) Joseph W. Veldman; Bonifacio Mostacedo; Marielos Peña‐Claros; Francis E. Putz
Silvicultural treatments enhance growth rates of future crop trees in a tropical dry forest
(Elsevier BV, 2008) Z. Villegas; Marielos Peña‐Claros; Bonifacio Mostacedo; Alejandro Alarcón; Juan-Carlos Licona; Claudio Leaño; William Pariona; U. Choque
Silviculture of Tropical Dry Forests: Bolivian Case Study
(Springer International Publishing, 2011) Bonifacio Mostacedo
Tipos de bosque, diversidad y composición florística en la Amazonia sudoeste de Bolivia
(2006) Bonifacio Mostacedo; Julio Balcázar; Juan Carlos Montero
The forest types, species richness, and floristic composition of the southwestern Amazon are poorly known. The objective of this study was to define the main forest types based on floristic composition and species abundance, and to compare these characteristics with surrounding areas. We sampled 30 1 ha plots in the department of Pando, Bolivia by identifying species, and quantifying the number of individuals, tree height, crown position, and liana infestation for trees ≥ 10 cm diameter. We also measured environmental variables including fisiography, slope,
Tree survival and resprouting after wildfire in tropical dry and subhumid ecosystems of Chiquitania, Bolivia
(Elsevier BV, 2022) Bonifacio Mostacedo; Adriana Viruez; Yoshelin Varon; Alejandra Paz-Roca; Vanixa Parada; Valeria Veliz
Lack of understanding the negative and positive effects of wildfires poses a challenge to the restoration and management of tropical ecosystems. Although fire can have negative impacts on tropical forests, it is known that many tropical savanna and woodland species are adapted to fire. The objective of this study was to determine the resilience of tree species to wildfire in a seasonally dry region of eastern lowland Bolivia. The study was carried out in four tropical dry Chiquitano ecosystems (Abayoy, Cerrado, Chiquitano dry forest, and sub-humid forest), in the department of Santa Cruz, 6–18 months after wildfires occurred in July - October 2019. At 45 sampling points, in both burned and unburned areas, we established 50-m x 5-m transects to determine tree species composition, number of individuals, resprout types, survival, diameter, and height of individuals that were ≥1 cm diameter at breast height (DBH). We calculated the percentages of surviving and dead stems by resprout categories and used logistic regression to determine the probability of survival and probability of resprouting as a function of pre-burn size. In the four ecosystems, 35–71% of the individuals sampled survived (crown and basal resprouting) after fire, while an additional 18–59% of individuals had only basal resprouting. Tree mortality (no reprouts) ranged from 5 to 11%. In burned areas, larger-diameter trees had a greater probability of survival. In contrast, the smaller-diameter trees had a higher probability of resprouting from the base. In conclusion, the Chiquitano tropical dry ecosystems have a high resilience to wildfire in terms of survival and resprouting. Resprouting strategy appears to be an important survival mechanism in trees, especially small trees, and must be considered in the passive restoration of burned forests.