Gabriel Alarcón Aguirre

ORCID: 0000-0003-0816-9911
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Conservation, Biodiversity, and Resource Management
  • Ecology and Vegetation Dynamics Studies
  • Environmental and Ecological Studies
  • Scarabaeidae Beetle Taxonomy and Biogeography
  • Forest ecology and management
  • Land Use and Ecosystem Services
  • Plant and soil sciences
  • Environmental and Cultural Studies in Latin America and Beyond
  • Plant Diversity and Evolution
  • Business, Innovation, and Economy
  • Regional Development and Innovation
  • Wildlife-Road Interactions and Conservation
  • Fire effects on ecosystems
  • Economic and Environmental Valuation
  • Indigenous Health and Education
  • Land Rights and Reforms
  • Agroforestry and silvopastoral systems
  • Archaeology and Cultural Heritage
  • Amazonian Archaeology and Ethnohistory
  • Education and Teacher Training
  • Cultural and Mythological Studies
  • Geography and Education Methods
  • Public Health and Environmental Issues
  • Social Skills and Education
  • Social Issues and Policies in Latin America

Amazon National University of Madre de Dios
2013-2024

Landscape Research Group
2023

Valparaiso University
2012

In the southeastern Peruvian Amazon, small-scale and artisanal gold mining has become a common activity represents one of greatest threats to forests. The study evaluated natural regeneration vegetation physicochemical properties soil for chronosequence in Madre de Dios (Peru). Fourteen plots 250 m2 were installed, distributed across areas with abandonment times varying from 2 19 years. All stems diameter at breast height ≥ 1 cm each plot recorded classified according size categories...

10.1016/j.tfp.2023.100369 article EN cc-by Trees Forests and People 2023-01-06

The study aimed to characterize the radial growth,macroscopic and microscopic anatomical features in wood, determine rotation time of Ochroma pyramidale secondary forests southeast Peruvian Amazon. We harvested 13 whole slabs wood from trees O. pyramidale. A total 32 radii 9 cross sections were dated crosschecked. demonstrates that annual growth rings have a common signal forests. This species has potential for analyzing effects climate on growth. Growth are visible naked eye demarcated by...

10.37763/wr.1336-4561/70.1.154169 article EN Wood Research 2025-03-18

Few studies describe the factors that influence natural regeneration in abandoned gold mining areas Amazon. Here we focus on of distance to forest edge and abandonment time a spontaneous succession degraded by southeastern Peruvian We assessed woody species composition (DBH ≥ 1 cm) stand structure across chronosequence (2–23 years). A total 79 belonging 30 families were identified. The was dominated Fabaceae, Malvaceae, Urticaceae. Together, they represented 60% importance index. Cecropia...

10.3390/d15060793 article EN cc-by Diversity 2023-06-19

Estimating deforested areas and deforestation rates have become key steps for quantifying environmental services of tropical rain forests, particularly as linked to programs such Reduced Emissions from Deforestation Forest Degradation (REDD). In Southeastern Peru, reliable estimates land-cover change (LCC) are important monitoring changes in the landscape due agricultural expansion, pasture creation other socio-economic influences triggered by Inter-Oceanic Highway (IOH). Our study reports a...

10.3390/land2020131 article EN cc-by Land 2013-04-10

Fire is one of the significant drivers vegetation loss and threat to Amazonian landscapes. It estimated that fires cause about 30% deforested areas, so severity level an important factor in determining rate recovery. Therefore, application remote sensing detect their fundamental. Radar imagery has advantage over optical because radar can penetrate clouds, smoke, rain see at night. This research presents algorithms for mapping burns based on change detection from Sentinel-1 backscatter data...

10.3390/fire5040094 article EN cc-by Fire 2022-07-08

Amazon rainforests are critical for providing a wide range of ecosystem services. In the Southeastern Peruvian Amazon; however, goldmining activities causing severe soil degradation and forest loss. We analyzed aboveground biomass (AGB), structure, species diversity recovery during secondary succession in 179 plots. Our study provides first field-based quantification AGB following abandonment by two types (heavy machinery suction pumping) Madre de Dios (Peru). found that successional forests...

10.3390/d16040233 article EN cc-by Diversity 2024-04-15

This study analyzes floristic and vegetation structure changes during forest succession after disturbances caused by small-scale gold mining in Madre de Dios (Peru). We compared the of a reference against three sites with different periods abandonment (5, 11 23-years). Three 20 × 60 meters plots were defined on each site, all tree species DBH >1 cm within inventoried. To evaluate diversity similarity, Importance Value, effective numbers (0D, 1D, 2D), Chao-Jaccard similarity index calculated....

10.1016/j.heliyon.2024.e29908 article EN cc-by-nc Heliyon 2024-04-21

This study aimed to evaluate the influence of canopy openness on survival and growth Bertholletia excelsa seedlings, through experimental plantings in tree-fall gaps forest understory Madre de Dios, Peru. Sixty-four seedlings were planted within design, with eight repetitions each four two treatments openness. Basal diameter, height, incidences mortality regrowth evaluated for twelve months. Survivorship, annual increase height diameter significantly higher than (p < 0.05). Regression...

10.1590/2179-8087.116817 article EN cc-by Floresta e Ambiente 2020-01-01

Madre de Dios es uno los bosques naturales más diversos y mejor conservados la Amazonía. Sin embargo, esta mega diversidad está amenazada por minería ilegal oro. El objetivo del presente estudio fue analizar diversidad, estructura biomasa aérea en 3 sitios reforestados hace 20 años Huepetuhe, sureste Amazonía peruana. La reforestación se realizó para recuperar áreas abandonadas minería, utilizando principalmente especies exóticas. Se utilizaron parcelas m × sitio, donde inventariaron todos...

10.22201/ib.20078706e.2021.92.3437 article ES cc-by-nc-nd Revista Mexicana de Biodiversidad 2021-05-18

: La Amazonia occidental, puntualmente la región de Madre Dios, es conocida como capital biodiversidad del Perú y reconocida mundialmente uno los lugares con mayor Tierra. Sin embargo, se ha visto amenazada por un grave problema pérdida bosques. Las principales amenazas ambientales deben a una mala gestión territorio que ocasionan concentración tierras, expansión agrícola, ganadería, minería oro explotación económica descontrolada. El presente estudio analiza dinámica bosques cambios uso...

10.7818/ecos.2175 article ES cc-by-nc Ecosistemas 2021-08-22

&lt;p class="Default"&gt;El estudio cuantifica las áreas deforestadas en una de zonas más impactadas por el hombre, al suroeste la ciudad Puerto Maldonado (Puerto – Inambari), imágenes Landsat TM 5 y 8 OLI fueron procesados utilizando clasificación semiautomática denominada “Random Forest” propuesto &lt;a href="http://reddcommunity.org/link/mesa-de-servicios-ambientales-y-redd-de-madre-de-dios"&gt;Mesa Servicios Ambientales Reducción Emisiones Gases Efecto Invernadero Causadas Deforestación...

10.18271/ria.2016.221 article ES cc-by Revista de Investigaciones Altoandinas - Journal of High Andean Research 2016-09-20

Madre de Dios is considered an important center of biodiversity in Peru due to its extensive Amazonian forests. However, the forests are under growing pressure land invasion, agricultural expansion, and gold mining. This makes support for forest management very important. study aimed evaluate relationship between loss, cover, land-use changes, Brazil nut (Bertholletia excelsa Humb. &amp; Bonpl) production concessions Peruvian Amazon (2004–2020). Remote sensing techniques were used classify...

10.3390/rs15235438 article EN cc-by Remote Sensing 2023-11-21

El estudio analizo el valor de conservacion del bosque que le asignan los pobladores indigenas la Amazonia Peruana: San Jacinto y Puerto Arturo en Madre Dios, comunidades contrastan realidades distintas cuanto a manejo sus bosques. Para ello se plantea dos escenarios: comunidad indigena con 7 033,98 ha bosque, expresa desorden desarrollo actividades ponen riesgo (mineria oro), mientras 3 731 es una comprometida recursos. Mediante metodo valoracion contingente (MVC) traves modelo logit...

10.18271/ria.2018.394 article ES cc-by Revista de Investigaciones Altoandinas - Journal of High Andean Research 2018-07-27

Anthropogenic activities (e.g., logging, gold-mining, agriculture, and uncontrolled urban expansion) threaten the forests in southeast of Peruvian Amazon, one most diverse ecosystems worldwide. However, gold-mining generates severe impacts on limits its resilience. The natural regeneration degraded areas southeastern Amazon have not been studied deeply. dataset contains floristic inventories previously uncharacterized or poorly secondary abandoned by goldmining an intact forest Tres Islas...

10.1016/j.dib.2024.111183 article EN cc-by-nc Data in Brief 2024-12-01

Riverine beaches in the Amazon are valuable ecosystems for local populations, providing areas recreation and classic beach activities. However, these subject to multiple pressures. The study presents results of willingness pay (WTP) 518 respondents at two (Hawaii Bora Bora) Peruvian (Puerto Maldonado, Madre de Dios). Over 58% indicated that they would use DAP maintain ecosystem services (BES) beyond recreational use. amount payment was an average WTP value USD 1.41/person/visit Hawaii...

10.3390/w16233474 article EN Water 2024-12-02

Los bosques de la Amazonia Madre Dios (Perú) vienen siendo deforestados. La deforestación es impulsada por el crecimiento poblacional urbano, agricultura, minería aurífera desarrollo infraestructura y falta planeación urbana territorial. pérdida tiene varias consecuencias negativas, como inmigración pobreza persistente. El estudio analiza valor conservación un bosque prístino terraza alta, ubicada en sureste peruana, área que soporta presión amenazas e invasión tierras acrecentada desde...

10.7818/ecos.1947 article ES cc-by-nc Ecosistemas 2020-12-30

El objetivo del estudio fue evaluar la contaminación de aguas superficiales en periferia urbana Puerto Maldonado (amazonia peruana), utilizando análisis biológicos, fisicoquímicos y microbiológicos. Las muestras agua se colectaron seis cuerpos (dos ríos, tres quebradas un lago). Los parámetros cada sitio no superaron los límites Estándar Calidad Ambiental peruano (ECA), excepto el oxígeno disuelto ríos cercanos a zonas urbanas. La recursos hídricos está relacionada con vertidos residuales...

10.15381/rivep.v32i6.20365 article ES Revista de Investigaciones Veterinarias del Perú 2021-12-22

La deforestación genera múltiples problemas a la humanidad, siendo un motivo fundamental restauración de estos biomas críticos. En este estudio, evaluamos cuatro líneas tiempo, desde 2018 al 2021. Utilizando datos longitudinales sensores remotos, en Región Madre Dios. El estudio se realizó área 85 301,00 km2, sur oriente del territorio peruano. imágenes satélite Landsat 8 sensor OLI, los softwares ENVI ESRI© y ArcGis ESRI©, con sus distintos paquetes herramientas análisis. Validando las alta...

10.55873/rba.v2i1.237 article ES Revista Biodiversidad Amazónica 2023-06-20
Coming Soon ...