ABIOTIC FACTORS AND LULC CHANGES AFFECTING THE DIVERSITY OF WILD SPECIES OF SOLANACEAE IN THE ECUADORIAN ANDES DOI Open Access
Mario García-Mora, Mercy Ilbay-Yupa

Nativa, Journal Year: 2024, Volume and Issue: 12(2), P. 370 - 380

Published: June 6, 2024

ABSTRACT: The diversity of wild species Solanaceae is very important for maintaining ecosystem resilience and food security. This study identified the abiotic conditions that contribute to presence main changes in Land Use Cover (LULC) affect their conservation Ecuadorian Andes. A Multiple correspondence analysis (MCA), Hierarchical Cluster Analysis LULC change were performed elucidate proposed objectives. results show influence factors such as geographic latitude precipitation have on been observed through MCA; a lesser extent, but just important, so frosts droughts. Three groups also this study: Group 1 (S. olmosense) located southwest country, higher temperatures (16-22 °C), average rainfall (1207 mm/year), no frost medium tolerance droughts; 2 chilliasense S. albornozii) south, with high drought, lower (10-14 °C) (1115 mm/year) loam soils; finally, 3 albicans, andreanum, chomatophilum, colombianum minutifoliolum) most abundant, distribution center north under wide range temperature (2 22 (500-2000 tolerant drought. evidences significant decrease (p<0.001) 5.1 km2/year from Grasslands Forests semi-natural cultivated areas, artificial territory, bare soils pastures three groups. Ecuador's climate variability allows Solanaceae, which are affected by LULC, it necessary take concrete actions facilitate potato genetic resource. Keywords: diversity; Solanacea; land use; cover. Fatores abióticos e alterações afetando diversidade de espécies silvestres nos Andes equatorianos RESUMO: é muito importante para manutenção da resiliência dos ecossistemas segurança alimentar. Este estudo identificou condições abióticas que contribuem presença principais mudanças Uso Cobertura Terra afetam sua conservação equatorianos. Uma Análise Correspondência Múltipla (ACM), Agrupamento Hierárquico Mudanças foram realizadas elucidar os objetivos propostos. Os resultados mostram influência fatores como geográfica precipitação têm sobre sido observados através em menor grau, mas igualmente importante, assim geadas secas. Três grupos também identificados neste estudo; Grupo localizado sudoeste do país, temperaturas mais elevadas média mm/ano), ausência tolerância secas; ao sul, com alta secas, baixas mm/ano) solos francos; finalmente, o abundante, distribuição centro norte sob ampla faixa temperatura tolerante mudança evidencia uma diminuição significativa (p<0,001) 5,1 km2/ano Campos Florestas áreas seminaturais cultivadas, território artificial, nus pastagens três grupos. variabilidade climática Equador permite na são afetadas pela por isso necessário tomar ações concretas facilitar recurso genético batata. Palavras-chave: diversidade; Solanaceae; uso solo; cobertura solo.

Language: Английский

Integration of InSAR coherence and SAR backscatter increases accuracy of LULC mapping in tropical high-mountain ecosystems DOI Creative Commons
William Martínez, Iván Lizarazo, André Große‐Stoltenberg

et al.

Geocarto International, Journal Year: 2025, Volume and Issue: 40(1)

Published: Jan. 16, 2025

Páramos, neotropical high-mountain biomes of the northern Andes, are increasingly threatened by human land use and climate change. Accurate use/land cover (LULC) mapping is critical for monitoring these pressures. However, persistent cloud poses substantial challenges optical satellite imagery. This study leverages multitemporal Interferometry SAR (InSAR) coherence dual polarimetric backscatter intensity to improve LULC accuracy in páramos ecosystems. Using a 1-year Sentinel-1 time series from January December 2019, 17 classes were mapped across 17,000 hectares. Results demonstrate that integrating increased F1-Score overall 9% 11%, respectively, compared alone. emphasizes role cloud-prone regions. Additionally, this underscores utility cloud-based platforms efficient data processing, offering scalable approach ecosystems worldwide, especially inaccessible heavy precipitation

Language: Английский

Citations

0
Modelo de segmentación semántica de imágenes satelitales basado en redes neuronales convolucionales para la clasificación de cobertura de la tierra en páramos DOI Creative Commons
Marta Pérez Quintana, Iván Lizarazo

Revista de Teledetección, Journal Year: 2025, Volume and Issue: 65

Published: Jan. 15, 2025

Los ecosistemas de páramo son esenciales para la regulación hídrica y conservación biodiversidad en zonas montañosas. Sin embargo, enfrentan amenazas significativas debido al cambio climático actividades humanas como agricultura, ganadería minería. La ausencia una delimitación clara sistemas monitoreo continuo sus coberturas dificultan su protección efectiva resaltando necesidad emplear técnicas digitales avanzadas que proporcionen información con alta exactitud actualizada. Las redes neuronales convolucionales (CNNs, por siglas inglés) se han posicionado herramientas prometedoras segmentación semántica imágenes satelitales. Esta investigación buscó evaluar el desempeño dos modelos basados arquitecturas CNNs U-Net++ DeepLabV3+ clasificar las tierra complejo páramos Tota-Bijagual-Mamapacha (TBM) Colombia, utilizando Landsat 8 del periodo 2017 a 2019 etiquetas mapa nacional 1:100 000 IDEAM 2018. resultados mostraron alcanzó un kappa 0,60, mientras obtuvo 0,59. En páramo, logró valor F1 78,43% Herbazal 79,22% Bosques, 75% 74,27%, respectivamente, confirmando potencial clasificación estos ecosistemas. Aunque ambos presentaron tiempos procesamiento similares, desbalance clases dependencia consistentes afectaron rendimiento heterogéneas. establece base metodológica futuros estudios sugiere abordar estas limitaciones mejorar eficiencia temática páramo.

Citations

0
Fire-sensitive and threatened plants in the Upper Paraguay River Basin, Brazil: Identifying priority areas for Integrated Fire Management and ecological restoration DOI

Paula Isla Martins,

Liz Barreto Coelho Belém, Luiza Moura Peluso

et al.

Ecological Engineering, Journal Year: 2024, Volume and Issue: 209, P. 107411 - 107411

Published: Sept. 25, 2024

Language: Английский

Citations

1
Assessing the potential of nature-based solutions as sustainable land and water management strategies in the high tropical Andean páramo ecosystem DOI Creative Commons
Kalina Fonseca,

Juan S. Acero Triana,

M. A. Gutiérrez

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 372, P. 123350 - 123350

Published: Nov. 19, 2024

Language: Английский

Citations

1
Modeling the Influence of Changes in the Edaphic Environment on the Ecosystem Valuation of the Zone of Influence of the Ozogoche and Atillo Lake Systems in Ecuador DOI Creative Commons
Yadira Carmen Pazmiño, José Juan de Felipe, M. Vallbé

et al.

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(6), P. 2249 - 2249

Published: March 7, 2024

Ecosystem valuation (EV) of soil resources is essential for understanding changes in environmental services monetary terms. A lack this information, which includes economic indices, hinders the optimal management natural resources. This study evaluated influence edaphic ecosystem on EV zone Ozogoche and Atillo lake systems Ecuador. The classification was carried out through spectral indices support vector machines (SVMs), determined opportunity costs including service provisioning indirect use. land use methods were performed efficiently; degradation trend constant. Modified Water Difference Index most efficient extraction water bodies, with an accuracy 91%. SVMs algorithm, recognizing coverage general, had overall 85%. adjustment made to algorithm improve selection hyperparameters effective; a robust architecture terms automation achieved. Between 2000 2020, moorland, wetland degraded by 19%, 2% 3.4%, respectively. In 2000, as function avoided CO2 content USD 8.00 × 106; 2010 it 6.00 106 5.00 106,

Language: Английский

Citations

0
Water quality assessment methods of the highland Andean rivers: A scoping systematic review DOI Creative Commons
Carlos Matovelle, María Quinteros, Karen Sofía Quinteros

et al.

Heliyon, Journal Year: 2024, Volume and Issue: 10(9), P. e30552 - e30552

Published: May 1, 2024

Water is a resource that influences sustainable development in different ways social, economic, and environmental aspects, being the Andes major provider of this resource. However, they have been affected mainly by anthropogenic activities due to proximity settlements watersheds, so tend more significant contamination, their evaluation essential mitigate problems for those who consume them. despite fundamental one main contributors water, it not studied, present study aims determine studies based on water quality high mountain rivers using PRISMA methodology with scoping review extension, search techniques, inclusion exclusion criteria, monitoring tables, order maintain line research attached objective study. After methodology, ten articles were obtained, which analyzed after bibliometric analysis features interest, such as countries carried out, years publication, methodologies used, authors' consensus. High Andean rivers' importance, need within these areas, lack suitable indexes unique ecosystems are highlighted.

Language: Английский

Citations

0
ABIOTIC FACTORS AND LULC CHANGES AFFECTING THE DIVERSITY OF WILD SPECIES OF SOLANACEAE IN THE ECUADORIAN ANDES DOI Open Access
Mario García-Mora, Mercy Ilbay-Yupa

Nativa, Journal Year: 2024, Volume and Issue: 12(2), P. 370 - 380

Published: June 6, 2024

ABSTRACT: The diversity of wild species Solanaceae is very important for maintaining ecosystem resilience and food security. This study identified the abiotic conditions that contribute to presence main changes in Land Use Cover (LULC) affect their conservation Ecuadorian Andes. A Multiple correspondence analysis (MCA), Hierarchical Cluster Analysis LULC change were performed elucidate proposed objectives. results show influence factors such as geographic latitude precipitation have on been observed through MCA; a lesser extent, but just important, so frosts droughts. Three groups also this study: Group 1 (S. olmosense) located southwest country, higher temperatures (16-22 °C), average rainfall (1207 mm/year), no frost medium tolerance droughts; 2 chilliasense S. albornozii) south, with high drought, lower (10-14 °C) (1115 mm/year) loam soils; finally, 3 albicans, andreanum, chomatophilum, colombianum minutifoliolum) most abundant, distribution center north under wide range temperature (2 22 (500-2000 tolerant drought. evidences significant decrease (p<0.001) 5.1 km2/year from Grasslands Forests semi-natural cultivated areas, artificial territory, bare soils pastures three groups. Ecuador's climate variability allows Solanaceae, which are affected by LULC, it necessary take concrete actions facilitate potato genetic resource. Keywords: diversity; Solanacea; land use; cover. Fatores abióticos e alterações afetando diversidade de espécies silvestres nos Andes equatorianos RESUMO: é muito importante para manutenção da resiliência dos ecossistemas segurança alimentar. Este estudo identificou condições abióticas que contribuem presença principais mudanças Uso Cobertura Terra afetam sua conservação equatorianos. Uma Análise Correspondência Múltipla (ACM), Agrupamento Hierárquico Mudanças foram realizadas elucidar os objetivos propostos. Os resultados mostram influência fatores como geográfica precipitação têm sobre sido observados através em menor grau, mas igualmente importante, assim geadas secas. Três grupos também identificados neste estudo; Grupo localizado sudoeste do país, temperaturas mais elevadas média mm/ano), ausência tolerância secas; ao sul, com alta secas, baixas mm/ano) solos francos; finalmente, o abundante, distribuição centro norte sob ampla faixa temperatura tolerante mudança evidencia uma diminuição significativa (p<0,001) 5,1 km2/ano Campos Florestas áreas seminaturais cultivadas, território artificial, nus pastagens três grupos. variabilidade climática Equador permite na são afetadas pela por isso necessário tomar ações concretas facilitar recurso genético batata. Palavras-chave: diversidade; Solanaceae; uso solo; cobertura solo.

Language: Английский

Citations

0