Ingeniería Forestal
URI permanente para esta colecciónhttp://hdl.handle.net/11349/1980
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Ítem Preferencias de nidificación de la abeja nativa mancita (M. favosa) en sabanas inundables de San Luis de Palenque, Casanare(Universidad Distrital Francisco José de Caldas) Sánchez Leal, Mateo; Bogotá Ángel, Raúl; Ramírez Correal, Beatriz; Bogotá Ángel, Raúl [0000-0003-3846-4735]The Colombian eastern plains (Llanos Orientales) have seen an increase in their transformed area due to various driving forces of change. These changes have direct consequences on the region's biotic environment, one of which is the negative impact on the support of aquatic and terrestrial biota. The native stingless bee species, Melipona favosa (Fabricius, 1798), locally called abeja mancita, is found in the Flooded Savannas of Casanare. This species has been primarily used for the development of traditional meliponiculture in the area through the harvesting of nests from tree trunks. This low-scale extractive activity is not concerning, but its uncontrolled expansion can have significant consequences for the pollination of native plants. Despite being a nationally threatened and simultaneously promising species, little is known about its reproductive biology and ecology. For example, there is no available information on nesting preferences in terms of preferred plant species, characteristics of host trees, and nest location. In this work, these preferences were evaluated by compiling local knowledge, analyzing the correspondence and anatomical identification of tree trunks, and describing nest characteristics through transects. Local knowledge highlighted characteristics such as the development of nests in trees with cavities, a preference for resin-producing species, and variability in the shape of the nest entrance (piquera). Trunk analysis showed a 92% correspondence between the identification of species by meliponiculturists and their dendrological identification in the lab. Four main plant species were identified, including Vitex orinocensis, which also showed a high frequency (52%) in the evaluated forest cover types. A slightly higher nest density of M. favosa was found in the Gallery Forests (52%; 2.8 nests/ha) compared to the Matas de Monte (forest patches) (48%; 1.9 nests/ha). In the latter cover type (Matas de Monte), host trees were recorded with high DBH (Diameter at Breast Height) (94.70 cm±1.26)$, with two dominant nest heights (1 m;3.5 m), and the presence of up to two nest entrances per tree. Gallery Forests, on the other hand, concentrated their nests in a relatively equal proportion between dead trees (51%) and live trees (49%). In both cover types, nests were mainly oriented toward the SE (Southeast) (48%) and were located in tree trunks (32%). The compilation of these characteristics is key for the design of restoration and management plans associated with the habitat of M. favosa, in order to ensure sustainability in local meliponiculture.Ítem Raíces Urbanas: guía de agroforestería en huertas urbanas como estrategia frente al cambio climático en Bogotá(Universidad Distrital Francisco José de Caldas) Tocora Gómez, Julio César; Buitrago Flórez, Paula Alejandra; Bonza Pérez, Niria PastoraThe internship was carried out at the José Celestino Mutis Botanical Garden of Bogotá, within the Technical Operational Subdirectorate under the Urban and Peri-Urban Agriculture line, to develop an Agroforestry Guide for peri-urban gardens with an agroecological approach. Sixteen field visits were conducted across seven localities of Bogotá, recording 43 forest species and 41 agricultural species, along with 24 species of particular interest to local growers. Through frequency analysis, Shapiro-Wilk normality testing, and Spearman’s rank correlation, a high species diversity was observed, dominated by food and fruit species for self-consumption, without a significant correlation between garden area and floristic richness. As a result, an illustrated technical guide was developed, including 20 native, fruit, and multipurpose species, aimed at strengthening urban agroforestry planning, ecological restoration, and food sovereignty within the framework of Agreement 605 of 2015.Ítem Sistematización de experiencias de los diálogos interculturales sobre el manejo integral del fuego(Universidad Distrital Francisco José de Caldas) Garzón Yaya, Lina Paola; Cardona Ramírez, Juan Camilo; Villarraga Florez, Liz; Meza Elizalde, María Constanza; Garzón Yaya, Lina Paola [0009-0000-1113-8943]In 2024, Colombia recorded a historic high number of forest fires. This phenomenon, exacerbated by climate change, requires comprehensive fire management that recognizes ancestral knowledge. This document presents a systematization of experiences around what fire represents for indigenous and peasant communities, with the aim of serving as input for future forest fire strategies. The information was collected through semi-structured interviews in the Intercultural Dialogues on Comprehensive Fire Management conducted by the UNGRD (National Unit for Disaster Risk Management) in December 2024 and June 2025. A comparative qualitative analysis was then carried out, coded and examined to identify the reasoning of the participating communities. This provided results on how the importance of fire varies between rural and ethnic communities: for peasants, its value is mainly economic, while for indigenous peoples it has a profound spiritual value. It was concluded that in both cases, fire is an essential component that acts as a tool that strengthens the economy and land management and is linked to the identity of each community. Its prohibition leads to progressive degradation of social welfare and environmental conditions, promoting the occurrence of forest fires. Additionally, information on the reality of other Latin American countries, specifically Brazil, Ecuador, Venezuela, Chile, and Mexico, was reviewed, and an analysis was conducted based on the experiences documented in those contexts. Therefore, the need to articulate traditional knowledge of fire with the technical concepts of the institutions responsible for land management in the country is recognized, making it possible to implement comprehensive fire management adapted to the ecological and social particularities of each territory.Ítem Análisis de costos asociados a la extinción de incendios forestales en Colombia durante el período 2012-2024(Universidad Distrital Francisco José de Caldas) Chamorro Alarcón, Natalia Fernanda; Contreras Ovalle, Silvia Fernanda; Villarraga Flórez, Liz; Meza Elizalde, María ConstanzaColombia is facing an increasing occurrence of wildfires due to its geographic diversity and environmental conditions, a situation exacerbated by climate change and phenomena such as El Niño. Over the past decade, approximately 1,124,200 hectares of forest have been affected, putting essential ecosystem services at risk. In response to this issue, the National Unit for Disaster Risk Management (UNGRD) and the Francisco José de Caldas District University (UDFJC) developed a study (carried out as an internship-based undergraduate thesis) aimed at evaluating national investment in aerial firefighting resources, as well as in the strengthening of tools and personnel of the entities that make up the National Disaster Risk Management System (SNGRD) over the past 13 years. The study included the collection of historical data, statistical analysis of budgetary trends, and the preparation of technical inputs to support inter-institutional coordination and management in response to wildfires. As a result, a database validated by official sources was consolidated, and a multitemporal analysis was developed, allowing the identification of investment patterns by type of wildfire, season, responsible entity, equipment used, and personnel involved, as well as the relationship between costs (indexed to 2025 Colombian pesos - COP) and the effectiveness of the response. The total investment amounted to COP $184,509,294,421 (2025), with COP $70,130,410,252 (2025) allocated to aerial resources (79% contributed by the Colombian Aerospace Force) and COP $114,378,884,169 (2025) to ground resources (95% corresponding to the investment by the National Directorate of Firefighters of Colombia). Additionally, recommendations were made regarding the reduction strategies proposed by UNGRD, based on the results obtained and the estimate that for every peso invested in risk reduction, COP $4.1 are saved in suppression efforts. The information gathered represents a significant advancement in understanding key data to improve budget allocation, prioritize actions, and design more sustainable policies aimed at strengthening institutional capacity for wildfire control and prevention.Ítem Actualización del plan municipal de gestión del riesgo de desastres, Villeta-Cundinamarca(Universidad Distrital Francisco José de Caldas) Romero Clavijo, Mariana Camila; Lagos Caballero, Jesús AlbertoThe update carried out by the Villeta Mayor's Office of Disaster Risk Management (DRM) arose in response to the need to update the municipality's Municipal Disaster Risk Management Plan (DRMMP) in response to rapid population growth, the rise of tourism, and the recent update of the Río Negro River Basin Management and Planning Plan (DRMMP). Community mapping also involved the presidents of the Community Action Boards in identifying critical areas and prioritizing needs, ensuring that the document reflected the municipality's realities. The DRMMP identified threat, vulnerability, and risk areas associated with landslides, forest fires, torrential floods, and flooding, as well as technological risk scenarios (structural fires, explosions, and spills at gas stations, propane gas distributors, utility companies, and Ecopetrol-Cenit). The methodological approach combined the analysis of historical data in the database located on the DesInventar platform of the United Nations Office for Disaster Risk Reduction (UNDRR), as well as a review of the information database of the consolidated emergency reports from 1998-2024 held by the National Unit for Disaster Risk Management - Colombia (UNGRD) and the database of the municipal Fire Department to identify the most frequent and largest threatening phenomena, and thus prioritize the disaster risk scenarios present in the municipality. Furthermore, the methodological approach combined the review of current regulations (Law 1523 of 2012) and inter-institutional coordination with entities such as IDEAM and Ecopetrol, to integrate natural, socio-natural, and technological risks.Ítem Tratamientos silviculturales implementados en los bosques de la Amazonía peruana y colombiana: una revisión digital del periodo 2.015-2.024(Universidad Distrital Francisco José de Caldas) Noppe Cante, Maria Paula; Gamboa Cárdenas, Santiago; Triana Gomez, Max Alejandro; Triana Gomez, Max Alejandro [0000-0002-3229-0001]This monograph reviews silvicultural treatments implemented in the Peruvian and Colombian Amazon between 2015 and 2024, systematizing information from research, technical, educational, and socio-cultural perspectives. A database was developed to organize documented experiences and support both academic and community use. Results show that in the Peruvian Amazon, assisted natural regeneration, enrichment, and pruning are most frequent, while in the Colombian Amazon, selective logging, thinning, and combined practices prevail. The comparison highlights distinct progress: in Peru, strongly supported by academia and scientific publications; in Colombia, more oriented toward technical reports and practical applications. The study concludes that strengthening the integration of scientific and traditional knowledge is essential to foster sustainable forest management, ensuring the conservation of Amazonian biodiversity while enhancing the livelihoods of local communities.Ítem Apoyo en el montaje, seguimiento, análisis del estado y dinámica del bosque de parcelas permanentes en el municipio de Vigía del Fuerte, Antioquia(Universidad Distrital Francisco Jose de Caldas) Gaitán Moreno, Natalia; Leal Pulido, Robert Orlando; Lezama Ahumada, KatherinnIn the municipality of Vigía del Fuerte, department of Antioquia, an ecoregion of the Chocó biogeográfico, the monitoring of a total of 60 permanent plots established under the cluster methodology of the National Forest Inventory (IFN) was continued, based on the follow-up of 45 initial plots and the installation of 15 additional ones. Four forest management scenarios were studied: sustainable forest management, traditional/conventional, without any type of intervention, and post-sustainable forest management. The results revealed a high diversity of species, with a great presence of rare species and the hyperdominance of families such as Fabaceae, Moraceae, and Arecaceae. The structural analysis highlighted the sustainable forest management scenario, which, due to its selective management, maintained equity and diversity by leaving remnants, highlighting the dominance of the species Pentaclethra macroloba (Capitancillo), and showed the diametric distribution with the highest regeneration potential, a large number of young individuals, and the highest percentage of basal area. In contrast, traditional management showed structural deterioration and a displacement of canopy species by pioneer species due to unplanned resource use, while the scenario without any type of intervention favored the dominance of Euterpe oleracea (Murrapo/naidí), restricting other species, which generated patches of specialists and low regeneration. The analysis of richness and diversity confirmed that the sustainable forest management and post-sustainable forest management scenarios had a very similar behavior, which supports the effectiveness of silvicultural management to conserve ecological structure and diversity, achieving a balance between preservation and the provision of ecosystem services.Ítem Sistematización de la experiencia de formación en justicia restaurativa y agroecológica caso: iniciativas de paz “granja tibares”(Universidad Distrital Francisco José de Caldas) Guerra Traslaviña, Karen Lorena; Triana Gómez, Max Alejandro; Triana Gómez Max Alejandro [0000-0002-3229-0001]The systematization of the experience at the “Tibares” Farm constitutes a pilot exercise to obtain lessons and insights in the implementation of one of the phases contemplated in the TOAR route. This experience was carried out through the collaboration of victims of the armed conflict, former FARC combatants organized in the Association for Collective Construction, Unity, and Transformation (ASOCUNT), the District Health Secretariat, and the Francisco José de Caldas District University, who, through dialogic encounters, designed and implemented training modules that integrated agroecological and restorative principles, fostering the dialogue of knowledge, food sovereignty, and peacebuilding in the territory. The results showed that agroecology, in addition to being a sustainable productive approach, functioned as a pedagogical and political tool for reconciliation, the dignification of victims, and the reintegration of former combatants, contributing to the strengthening of the social and community fabric. The Agroecological School “Sowing Peace” was consolidated as a space for training trainers, where participants and victims shared learning processes and experiences, recognizing historical memory, resilience, and the challenges of the post-agreement context.Ítem Guía de recolección, tratamientos pre - germinativos y germinación de especies nativas del bosque alto andino: caso de estudio Parque Ecológico La Poma(Universidad Distrital Francisco José de Caldas) Olachica Ariza, Jhoan Sebastian; Pastora Bonza, Niria PastoraThis document presents an illustrated technical guide on the processes of collection, processing, extraction, and germination of native species from the high Andean forest, based on the experience of La Poma Ecological Park. The objective is to systematize practical knowledge to support ecological restoration processes and as a strategy to maintain the ISO 9001 certification of the Corporación Ambiental Empresarial CAEM. Data was collected through interviews, literature reviews, and photographic records of 44 native species, including Quercus humboldtii (oak), Juglans neotropica (walnut), Weinmannia tomentosa (encenillo), and Miconia squamulosa (tuno esmeraldo). The information was organized into technical data sheets detailing collection methods, pre-germination treatments, and planting. The results show that the most common treatment is a combination of pulping and hydration (32%). Planting is mainly done in furrows (57%), broadcast (39%), and in holes (7%), depending on the type of seed. It is concluded that timely harvesting and proper nursery management are essential for successful propagation. It is recommended to expand the information with studies on undocumented species and to update phenology in light of climate change.Ítem Apoyo técnico en la formulación de protocolos de producción en vivero para especies forestales de interés en la empresa Sunshine Bouquet SAS(Universidad Distrital Francisco José de Caldas) López Prieto, Bryan Ferney; Alfonso Rizo, Yanim Jakziany; Bonza Pérez, Niria Pastora; Hernández Carvajal, Miguel ÁngelThis document outlines the technical support provided to Sunshine Bouquet to strengthen its forest nurseries as part of its ecological restoration strategies in Cundinamarca. Propagation technical data sheets for native species were updated and developed, incorporating information on morphology, ecology, conservation, and genetic origin. Using an exponential projection model and an optimization tool in Excel, species were prioritized and optimal production volumes were defined. Management tools such as a monitoring matrix and an interactive catalog were also designed, staff training was provided, and operational processes were improved, increasing efficiency in tasks such as bag filling. Although significant progress was made, limitations related to seed availability were identified.Ítem Verificación de la información sobre diversidad de flora en las áreas protegidas de PNN de Colombia(Universidad Distrital Francisco José de Caldas) Sandino Restrepo, Valentina; Lagos Caballero, Jesus AlbertoDuring the internship with Colombia's National Natural Parks, a process of verification, systematization, and analysis of the floristic information recorded in the country's protected areas was carried out, with the aim of strengthening the Research and Monitoring Information System. Based on the review of 520 historical research projects, a preliminary list of approximately 2,000 flora species was compiled, allowing for the characterization of the richness, distribution, and conservation status of plant diversity in the different parks. Taxonomic validation tools such as the GBIF platforms were also used to generate indicators by region, protected area category, and biological group of interest (SiB Colombia). 312 species were also identified under some threat category according to MADS Resolution 0126 of 2024. The results were integrated into cartographic products and an interactive application in ArcGIS Experience Builder, which facilitates geospatial data visualization and strengthens adaptive management and conservation decision-making processes. This exercise demonstrated the high level of floristic representation in regions such as the Orinoquia and the Andes, as well as the need to improve records in underrepresented areas such as the Caribbean and the Pacific.Ítem Apoyo a la estimación de compensación de carbono en predios de interés ecológico forestal del Banco de la República(Universidad Distrital Francisco José de Caldas) Useche Ramirez, Michelle; Guzman, Antonio JoseBanco de la República has formalized its strategic commitment to carbon neutrality within its 2022-2025 Strategic Plan, seeking to offset greenhouse gas (GHG) emissions from its operations through carbon removal projects on properties of forest ecological interest such as Combia, Providencia, Peñas Negras, and San Pablo. This initiative has resulted in carbon neutrality certification for 2023, validated by Bureau Veritas. The strategy is based on Nature-Based Solutions (NbS), prioritizing ecological restoration on properties such as Old Providence, Selva de Florencia, and the high Andean properties of Zipaquirá, through the planting of native species and the protection of key ecosystems. To ensure the credibility and verifiability of its removals, the Bank applies international standards such as BSI's PAS 2060, ISO 14064-2, and the IDEAM Protocol (USCUSS), and implements a rigorous monitoring and verification system, which includes individual coding of each tree, georeferenced validation, and desktop testing based on the ISO 3951-1 standard for data quality control. These actions, often in collaboration with entities such as National Natural Parks and the Quindío Botanical Garden Foundation, position the Bank as a benchmark in corporate environmental management, with an adaptive approach and a robust structure for internal auditing and continuous improvement.Ítem Caracterización por cortezas de los fustales de una parcela permanente del Herbario Forestal UDBC en el Centro Experimental Amazónico, (CORPOAMAZONIA)(Universidad Distrital Francisco José de Caldas) Junco Pulido, Diego Alexander; Carvajal Rojas, Lyndon; Junco Pulido, Diego Alexander [0009-0003-6336-4987]; Carvajal Rojas, Lyndon [0009-0003-4065-8296]This study developed an innovative methodology for non-destructive taxonomic identification of tree species through morphological analysis of bark in the Colombian Amazon. Conducted in the permanent plot of the UDBC Forest Herbarium at the Amazonian Experimental Center (CEA) of CORPOAMAZONIA (Mocoa, Putumayo), the research addressed identification challenges in hyperdiverse tropical forests where traditional methods prove limited. The work analyzed 46 species from 26 families, focusing on ecologically relevant taxa with DBH ≥ 10 cm, using a standardized protocol that combined high-resolution digital photography with qualitative description of fissuring patterns, exudates and lenticels, complemented by quantitative measurements of bark thickness. Key findings include the documentation of dominant families such as Moraceae (6 species), Euphorbiaceae, Arecaceae and Meliaceae (3 species each), along with the characterization of distinctive attributes like resins in Burseraceae, latex in Moraceae and longitudinal fissures in Fabaceae. The study revealed that 12 of the analyzed species show some threat category. As main outcome, the first illustrated bark catalog for the Colombian Amazon was produced (166 pages with technical sheets), integrating digital image processing technologies with traditional taxonomy and establishing a replicable protocol for non-destructive forest inventories. This research provides threefold significance: scientific, by supplying new morphological data for taxonomic identification; methodological, through developing accessible and standardized techniques; and applied, by offering practical tools for participatory monitoring and conservation of Amazonian biodiversity. The resulting catalog represents a valuable resource for botanists, ecologists and local communities, facilitating species identification without destructive sampling and setting foundations for future functional ecology studies in these strategic ecosystems.Ítem Revisión del censo forestal, georeferenciación y generación de códigos SIGAU, para el proyecto Accesos Norte II, Unidades Funcionales 1, 2, 3, 4 y 5.(Universidad Distrital Francisco José de Caldas) Hincapie Hernández, Angie Juliana; Múñoz Rubiano, Faber Alejandro; Carvajal Rojas, Lyndon; Carvajal Rojas, Lyndon [0009-0003-4065-8296]Mobility in Bogotá, especially on the Autopista Norte highway, has been affected by population growth and urban development, generating traffic flows of up to 4,708 vehicles per hour during peak times, according to a study by Santo Tomás University (Cifuentes Romero, 2019). This high level of congestion underscores the urgent need to expand road infrastructure to improve traffic flow in the city and strengthen the competitiveness of the metropolitan region. However, the recent refusal by the National Environmental Licensing Authority (ANLA) to grant an environmental license for the expansion of the project highlights the importance of complying with the requirements established by environmental authorities. Among the key requirements, it is important to highlight the need to identify and georeference each individual tree in the intervention area. This is achieved by surveying these trees in the field and capturing their dasometric information, physical and health status, among other additional variables also required by the District Secretariat of the Environment (SDA) as the competent authority working hand in hand with the Bogotá Botanical Garden (JBB) José Celestino Mutis for the administration and management of the city's urban trees, through the establishment of unique codes for existing trees in the district to facilitate their identification and census through the Urban Tree Management System (SIGAU). In response to the challenges of forest censuses in road projects such as the Autopista Norte, an opportunity has been identified to optimize census processes through the use of geospatial analysis technologies and tools. During the field information verification process, carried out by eight (8) forestry professionals, individual trees were recorded using the Memento application. This tool allowed for the collection of taxonomic and dasometric data, such as DBH, total and commercial height, basal area, among others. In addition, the phytosanitary and physical condition of the individuals was evaluated, purging inconsistencies in the information. All data were georeferenced and associated with a unique ID to ensure their correct location in the geographic information system (GIS). Although there were inaccuracies in the location of the GPS points, these were adjusted and relocated within the intervention area, complying with the requirements of the environmental authorities and their corroboration with the individuals already registered in the SIGAU. This process was essential to optimize the correct spatialization of individuals and generate the urban tree management system files required by the district authority, thus ensuring the environmental viability of the current project and providing a reference for possible road infrastructure projects in Bogotá.Ítem Apoyo cartogràfico en la formulaciòn del Plan de Ordenaciòn Forestal (POF) para las regionales dentro de la jurisdicciòn de la Corporaciòn Autònoma Regional de Cundinamarca (CAR)(Universidad Distrital Francisco José de Caldas) Buelvas Madrid, Paula Lorena; Moreno Gutiérrez, Jaime Alberto; Moreno Gutiérrez, Jaime Alberto [0000-0002-0754-513X]Forest management is a systematic and planned process that involves the management and use of forests in a sustainable manner, based on this criterion the Regional Autonomous Corporation of Cundinamarca - CAR as the entity in charge of the management of the forest covers of its territory, is immersed in the preparation and approval of the Forest Management Plan, in the formulation process of seven of the fourteen regional directorates that make it up (Almeidas Guatavita, Ubaté, Soacha, Sabana Centro, Sabana occidente, Magdalena Bajo and Tequendama) the development of a cartographic database, as a fundamental tool for the analysis of forest resources in the study area. This work focuses on cartographic support for each region following the methodology promulgated by the Ministry of Environment and Sustainable Development (MADS) in 2020, developing the collection, processing and presentation of thematic cartography and analysis information. As a result of the internship, the thematic information consultation database was generated for the analyzes required in the construction of the POF in the seven (7) prioritized regions, subject to socialization and approval processes in the CAR. The resulting data will be used for forest management in Cundinamarca in favor of sustainable management in the Corporation's forest development policies.Ítem Apoyo técnico en la investigación del efecto de la hojarasca sobre la respiración del suelo y su función en la recuperación de áreas verdes en Bogotá. (Jardín Botánico José Celestino Mutis y Predio las Mercedes - Reserva Forestal Thomas van der Hammen)(Universidad Distrital Francisco José de Caldas) Moreno Hurtado, Karen Lorena; Lagos Caballero, Jesús AlbertoThis document describes the technical accompaniment carried out during an internship aimed at evaluating the influence of leaf litter on soil respiration and the recovery of green areas in two sites in Bogota: the José Celestino Mutis Botanical Garden (JBB) and the Las Mercedes property of the Thomas van der Hammen Forest Reserve. For this purpose, 30 plots (15 per site) were established with buried PVC collars that allowed, after a minimum rest of 24 h, biweekly measurements of edaphic CO₂ flux during the months of September to November 2024, using an IRGA EGM-5 analyzer and simultaneously recording soil temperature and humidity (STP-2 probe and EXTECH MO-750 meter) and air temperature and humidity (Kestrel). In parallel, 288 nylon bags with 5 mm mesh and 5 g of leaf litter of four representative species were prepared to estimate monthly decomposition rates; after monthly collection, the samples were cleaned, dried at 60 °C to constant weight and weighed with a 0.01 g precision balance. In addition, leaf material was separated by species in the leaf litter traps to determine taxon-specific contributions. Preliminary results show higher litter production and increased soil respiration at JBB compared to Las Mercedes, attributable to the higher biomass and tree structure of JBB; Likewise, soil respiration responded positively to increases in temperature, litter removal reduced CO₂ flux in tree cover and increased it in restored grasslands, and the species with the greatest contribution were Quercus humboldtii and Retrophyllum rospigliosii in JBB, and Retrophyllum rospigliosii and Alnus acuminata in Las Mercedes. Since no clear correlation was observed between the amount of leaf litter and soil organic carbon, it is suggested to extend monitoring to an annual cycle, improve the calibration of humidity sensors and prioritize in urban restoration plans those species that contribute more leaf litter, in order to optimize carbon sequestration, microclimatic regulation and soil structural quality.Ítem Evaluación potencial de bioextrusión del retamo espinoso (Ulex europaeus) y retamo liso (Genista monspessulana), como sustrato para cuatro especies de bosque altoandino en la región suroriental de Bogotá(Universidad Distrital Francisco José de Caldas) Salazar Rincón , Neider Sebastian; Matínez Aragón, Oscar Julian; López Botía, FavioThe issue caused by the uncontrolled expansion of thorny broom (Ulex europaeus) and smooth broom (Genista monspessulana) in the high-Andean forests of southeastern Bogotá was addressed. The use of these invasive shrubs as a bioextruded substrate for cultivating four native species was proposed: Myrcianthes rhopaloides, cedar (Cedrela montana), pagoda (Escallonia myrtilloides), and corono (Xylosma spiculifera). To this end, the bioextrusion process was evaluated as an alternative capable of inactivating broom seeds, thereby reducing the potential for regrowth while producing a nutrient-rich material. The analysis included variables such as mortality, height, leaf count, basal diameter, and seedling biomass, comparing different proportions of bioextrudate. This approach aimed not only to demonstrate the safety of the resulting material but also to verify its effectiveness in enhancing the performance of native species, making it suitable for ecological restoration projects and the sustainable management of invasive plant residues.Ítem Apoyo en el levantamiento de vegetación para el análisis de estructura y composición florística mediante el tipo de muestreo por transectos de área fija en el predio “El Porvenir” ubicado en la Palma, Cundinamarca(Universidad Distrital Francisco José de Caldas) Arévalo Rojas, Sergio Alejandro; Galvis Hernández, Alison Nicolle; Leal Pulido, Robert Orlando; Villanueva Rojas, EstefaníaVegetation surveying was used to analyze the structure and floristic composition of a fragment of premontane humid forest located in the "Pur Pur" area of La Palma, Cundinamarca. A forest inventory was conducted on 0.18 ha by sampling fixed-area transects of 50x2 m, corresponding to low secondary vegetation cover. The main plant material was collected along the transects; secondarily, on trails, clearings, and surrounding wooded areas. A total of 93 species, corresponding to 52 families, were found. Of these, 52 species and 32 families were identified along the transects. The families with the highest number of species were Euphorbiaceae and Malvaceae (4), Asteraceae, Fabaceae, and Urticaceae (3); a small number of species compared to those reported in similar forest studies. Some biogeographical novelties were found for the department of Cundinamarca, as well as characteristics for some species at the study site. The forest presented a diameter distribution common to young and recovering forests, with the greatest number of low-height, small-diameter individuals located in the lower diameter classes. Species with a greater presence in the regeneration strata and transects, with larger diameters and higher heights, had a higher Expanded Importance Value (EIV) in the forest. A dispersed spatial distribution and high heterogeneity and diversity were identified, but not as expected for this type of forest, given the presence of anthropogenic and natural disturbances that promote the loss of forest cover and limit the ecological continuity of the site.Ítem Efecto borde en la diversidad de termitas (Infraorden: Isóptera) en un bosque de galería de Cabuyaro, Meta(Universidad Distrital Francisco Jose de Caldas) Moreno Burgos, Laura Gabriela; Pinzón Florian, Olga Patricia; Bogotá Ángel, Raúl Giovanni; Pinzón Florian, Olga Patricia [0000-0002-5858-4083]; Bogotá Ángel, Raúl Giovanni [0000-0003-3846-4735]The gallery forests of the Colombian altillanura are a refuge for fauna and flora and are associated with a wide range of ecosystem services. Land-use change generated by human activities such as livestock farming, overuse, conversion to agriculture, fragmentation and illegal logging have led to the degradation of gallery forests in the Orinoquia region on different scales. Termites (Insecta: Blattaria: Isoptera) are sensitive to alterations in soil and habitat and therefore are used as bioindicators for the monitoring of changes in environments degraded by land use. In this work, the changes in the diversity of isoptera were estimated as a function of the distance to the edge (0-20 m, 20-40 m, 40-80 m and more than 80 m) in a gallery forest located in Cabuyaro, Meta. In each category of distance to the edge, structural variables of the forest (basal area and density of silts and broadleavings, canopy cover) and physicochemical variables of the soils in the surface layer of soil monoliths were measured. The termites were collected by adapting the transect methodology, in epigean nests and trees, in pieces of wood in contact with the soil and in soil monoliths. The effective number of species (q0, q1, q2) was compared between distance categories and the possible relationship between environmental, soil and termitofauna variables was estimated by a multidimensional non-parametric scaling analysis (NMDS). The termitofauna was composed by species of 3 families, 21 genera and 40 morphospecies. The effective number of isoptera species decreased at greater distance to the edge. Structural variables such as canopy and soil coverage such as the Ca/Mg ratio, exchangeable acidity, CICE, K, Mg/K, SAI and Ca, water available for plants, the point of permanent wilt and the content of C and N showed variations with respect to the distance from the edge. In this work, xylophagous species of the genera Microcerotermes, Heterotermes and Nasutitermes presented affinity with the inside of the forest.Ítem Evaluación del efecto borde de un bosque de Galería en Cabuyaro (Meta) a través de la caracterización de la macrofauna edáfica(Universidad Francisco José de Caldas) Mejía Ávila, Laura Daniela; Bogotá Ángel, Raúl Giovanni; Ramírez Correal, Beatriz Helena; Bogotá Ángel, Raúl Giovanni [0000-0003-3846-4735]; Ramírez Correal, Beatriz Helena [0000-0002-8411-2602]Soil macrofauna influences soil characteristics such as structure, porosity, and infiltration capacity, which are associated with water regulation, and it is sensitive to changes in its habitat. Gallery forests provide various ecosystem services related to water resources, such as regulating water flows, controlling floods, and preventing riverbank erosion. However, these forests are subjected to anthropogenic pressures that reduce their extent and/or alter the richness and abundance of soil organisms and their properties. This study evaluates the edge effect of a Gallery forest in Cabuyaro (Meta) on the diversity of soil macrofauna as a function of distance from the edge (0-20 m, 20-40 m, 40-80 m, and more than 80 m). In three sections of the Gallery forest, variables related to vegetation structure were measured, 45 sampling points were established, and existing macrofauna were collected. Soil samples were also extracted for characterization. Additionally, a non-metric multidimensional scaling (NMDS) analysis was conducted to determine whether the edge effect correlates with soil macrofauna composition. A total of 2,086 individuals were collected, corresponding to 159 morphospecies grouped into four (4) phyla, nine (9) classes, and 19 orders. The orders Blattodea, Hymenoptera, and Coleoptera had the highest number of individuals. The greatest abundance was recorded between 20 and 40 meters from the edge. Canopy cover and several soil variables, such as Ca/Mg, exchangeable acidity, cation exchange capacity (CEC), K, Mg/K, soil acidity index (SAI), Ca, plant-available water, permanent wilting point, and C and N content, varied with distance from the edge. Specifically, Ca/Mg, Mg/K, Ca, and plant-available water increased towards the forest interior. This study shows that soil macrofauna composition in the Gallery forest is slightly influenced by edge distance, exchangeable acidity, saturation point, and plant-available water.