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1
artículo
Publicado 2024
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This study aimed to determine the impact of age on the fecal microbiota in the genetic nucleus of cattle, with a focus on microbial richness, composition, functional diversity, and correlations with blood parameters. Fecal and blood samples from 21 cattle were analyzed using 16S rRNA gene sequencing. Older cattle exhibited greater bacterial diversity and abundance, with significant changes in alpha diversity indices (p < 0.05). Beta diversity analysis revealed significant variations in microbial composition between age groups and the interaction of age and sex (p < 0.05). Correlations between alpha diversity, community composition, and hematological values highlighted the influence of microbiota on bovine health. Beneficial butyrate-producing bacteria, such as Ruminococcaceae, were more abundant in older cattle, suggesting a role in gut health. Functional diversity analysis indicated tha...
2
artículo
Publicado 2024
Enlace
Enlace
This study aimed to determine the impact of age on the fecal microbiota in the genetic nucleus of cattle, with a focus on microbial richness, composition, functional diversity, and correlations with blood parameters. Fecal and blood samples from 21 cattle were analyzed using 16S rRNA gene sequencing. Older cattle exhibited greater bacterial diversity and abundance, with significant changes in alpha diversity indices (p < 0.05). Beta diversity analysis revealed significant variations in microbial composition between age groups and the interaction of age and sex (p < 0.05). Correlations between alpha diversity, community composition, and hematological values highlighted the influence of microbiota on bovine health. Beneficial butyrate-producing bacteria, such as Ruminococcaceae, were more abundant in older cattle, suggesting a role in gut health. Functional diversity analysis indicated tha...
3
artículo
Publicado 2025
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This study was carried out in the Loretillo forest concession (No. 17-TAM/C-OPB-A-026-07), located in the Las Piedras River conservation corridor in Tambopata, Madre de Dios. The main objective was to conduct an inventory of wildlife species, focusing on their use as bioindicators of the ecosystems within the concession. The study considered variables such as the species composition of flora, birds, and mammals, as well as the ecosystem services they provide (ESS). To this end, eight Permanent Sampling Plots (PSPs) and linear transects were established, distributed across two predominant ecosystem types: alluvial flooded forest (B-ai) and lowland hill forest (B-cb). The analyses included alpha and beta diversity indices, ecological importance values (IVI), and parameters related to threatened species. The B-ai ecosystem was found to have greater biological richness and diversity. T...
4
artículo
Publicado 2025
Enlace
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This study was carried out in the Loretillo forest concession (No. 17-TAM/C-OPB-A-026-07), located in the Las Piedras River conservation corridor in Tambopata, Madre de Dios. The main objective was to conduct an inventory of wildlife species, focusing on their use as bioindicators of the ecosystems within the concession. The study considered variables such as the species composition of flora, birds, and mammals, as well as the ecosystem services they provide (ESS). To this end, eight Permanent Sampling Plots (PSPs) and linear transects were established, distributed across two predominant ecosystem types: alluvial flooded forest (B-ai) and lowland hill forest (B-cb). The analyses included alpha and beta diversity indices, ecological importance values (IVI), and parameters related to threatened species. The B-ai ecosystem was found to have greater biological richness and diversity. T...
5
tesis de maestría
Publicado 2021
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Universidad Nacional Agraria La Molina. Escuela de Posgrado. Maestría en Ciencias Ambientales
6
tesis de grado
Publicado 2019
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La identificación de especies de Hongos Micorrízicos Arbusculares (HMA), presentes en áreas donde se cultiva el café (Coffea arabica L.) en nuestra Región son de gran importancia, pues constituye la base para la investigación de especies que pueden ser aprovechadas en el futuro como bioprotectores y biofertilizantes en este cultivo y así contribuir al mejoramiento sostenible de la producción. En este sentido, se identificó 31 especies de HMA, en suelos de doce localidades (fuentes de inóculo) de plantaciones de café, de la cuales se reportó una especie nueva (Funneliglomus sanmartinense), estando presente especialmente en Alto Palmiche (Lamas). De las localidades muestreadas, Pueblo Nuevo (Lamas) y Nuevo Lamas (San Martín) fueron las fuentes de inóculo que tuvieron mayor densidad de esporas y riqueza de especies, siendo de las dos, Nuevo Lamas la localidad que proporcionó ...
7
artículo
Publicado 2024
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The characterization of soil microbial communities at different depths is essential to understand their impact on nutrient availability, soil fertility, plant growth and stress tolerance. We analyzed the microbial community at three depths (3 cm, 12 cm, and 30 cm) in the native fruit trees Annona cherimola (cherimoya) and Pouteria lucuma (lucuma), which provide fruits in vitamins, minerals, and antioxidants. We used PacBio-HiFi, a long-read high-throughput sequencing to explore the composition, diversity and putative functionality of rhizosphere bacterial communities at different soil depths. Bacterial diversity, encompassing various phyla, families, and genera, changed with depth. Notable differences were observed in the alpha diversity indices, especially the Shannon index. Beta diversity also varied based on plant type and depth. In cherimoya soils, positive correlations with Total Or...
