This paper summarizes what is known about the mountain crabs of the Genus Hypolobocera Ortmann, 1897 in the Neotropics, based on a bibliographic review. The sources of secondary information correspond to scientific journals, mainly. There are 42 species of mountain crabs, reported mostly from Colombia. Other countries with records of Hypolobocera are Ecuador, Venezuela, Peru, and Panama. The largest number of studies correspond to taxonomic topics. Hypolobocera species are symbionts of parasites such as flukes of the Genus Paragonimus and turbellarians such as Temnocephala icononcensis Arias-Pineda, Damborenea & Castro, 2015. The conservation status has identified endangered and/or data-deficient mountain crab species in Colombia. Considering the extensions of the agricultural and livestock frontiers, it is necessary to evaluate the population status of the Hypolobocera species to es...

Improvements in production systems that use the lean manufacturing approach known as “Lean” have the objective of eliminating or reducing waste or process inefficiencies (muda). This approach is increasingly adopted by different industrial sectors, including agriculture. Although Lean improvements are traditionally applied to existing processes from cultivation to distribution, opportunities to intervene in processing wastes (losses) are left aside. This article presents a methodological approach framed in five Lean principles, made up of six activities aimed at the design of new processes that make use of the losses generated by harvesting and agricultural transformation. The methodological approach is applied in a Colombian coffee farm where parchment coffee transformation processes are developed. A parallel losses composting process is designed that transforms defective, green, ov...

El presente trabajo propone un proyecto arquitectónico de tres partes que integre la zona urbana del distrito de Lurín con la zona recreativa en la desembocadura del Río Lurín en la Playa San Pedro, por medio del “Corredor Verde” que se ubicaría en la rivera del Rio Lurín comenzando desde la Antigua Panamericana Sur y terminando en el “Parque Temático” ubicado en la misma desembocadura del Rio Lurín, este mismo tendría ubicado “El Gran Acuario de Lima” del cual es el proyecto más a desarrollar por contemplar las zonas más importantes del Proyecto que son: El Acuario, el Tiburionario – Restaurante y Los Museos de Prehistoria Marina y Oceanográfico de los cuales brindaría una educación de cultura y de historia que enseñe la importancia del cuidado del medio ambiente demostrando la flora y fauna acuática del Perú del que tenemos que preservar.

El presente trabajo propone un proyecto arquitectónico de tres partes que integre la zona urbana del distrito de Lurín con la zona recreativa en la desembocadura del Río Lurín en la Playa San Pedro, por medio del “Corredor Verde” que se ubicaría en la rivera del Rio Lurín comenzando desde la Antigua Panamericana Sur y terminando en el “Parque Temático” ubicado en la misma desembocadura del Rio Lurín, este mismo tendría ubicado “El Gran Acuario de Lima” del cual es el proyecto más a desarrollar por contemplar las zonas más importantes del Proyecto que son: El Acuario, el Tiburionario – Restaurante y Los Museos de Prehistoria Marina y Oceanográfico de los cuales brindaría una educación de cultura y de historia que enseñe la importancia del cuidado del medio ambiente demostrando la flora y fauna acuática del Perú del que tenemos que preservar.

Floristic composition and rangeland condition of the Phynaya Peasant Community (located North of Pitumarca district and EastNorth of Canchis Province, Cusco region) were evaluated to estimate stocking rate under climate change scenario. Floristic composition, vegetation cover, and plant vigor were evaluated on 79 step-transects of 200 m in six rangeland sectors. Preliminary results reveal that there are 60 species, grouped in 13 families, where the dominant families were Poaceae (46.67%), Asteraceas (15%) and seudograsses (13.3%), of which, 45% were palatable for alpacas. Of the total grazing areas, alpacas´ areas represent 70.4%, llamas 15.4%, cattle 3.5%, sheep 4.5% y vicunas 6.3%. Actual stocking was 1 alpaca unit per hectare while stocking rate average estimated was fair with supportability of 0.78 UAl/ha; thus, rangelands are considered on degradation process

Floristic composition and rangeland condition of the Phynaya Peasant Community (located North of Pitumarca district and EastNorth of Canchis Province, Cusco region) were evaluated to estimate stocking rate under climate change scenario. Floristic composition, vegetation cover, and plant vigor were evaluated on 79 step-transects of 200 m in six rangeland sectors. Preliminary results reveal that there are 60 species, grouped in 13 families, where the dominant families were Poaceae (46.67%), Asteraceas (15%) and seudograsses (13.3%), of which, 45% were palatable for alpacas. Of the total grazing areas, alpacas´ areas represent 70.4%, llamas 15.4%, cattle 3.5%, sheep 4.5% y vicunas 6.3%. Actual stocking was 1 alpaca unit per hectare while stocking rate average estimated was fair with supportability of 0.78 UAl/ha; thus, rangelands are considered on degradation process

En este estudio titulado: “Diseño e implementación de un sistema eléctrico de contingencia para mejorar la productividad de una empresa siderúrgica” tiene por objetivo determinar cómo el diseño e implementación de un sistema eléctrico de contingencia incide en mejorar la productividad en una empresa siderúrgica. Para este estudio se empleó una metodología de tipo aplicada de diseño explicativo la población estuvo conformada por 20 equipos electromecánicos de la empresa y la muestra está representada por los 20 equipos electromecánicos. Por lo que es una muestra censal. Se realiza la recopilación de datos mediante una ficha Excel y se empleó la observación. El resultado que arrojó es que al realizar el diseño e implementación de un sistema eléctrico de contingencia la empresa aumentará su productividad ya que es una empresa en expansión y necesitará mucha má...

The estimation and variation of the vegetation cover of the Amazon forest generated by anthropic activity in Huepetuhe had the purpose of estimating the loss of vegetation and the deforestation rates for an Amazon forest, the study was carried out using Landsat 8 satellite images, the treatment of the raster images was made using the ERDAS software, the images were subjected to geometric and radiometric corrections, for this purpose control points were taken on the ground, for the analysis four categories of forest degradation were established: Forest with null vegetation with presence of bare soil, forest with sparse vegetation, forest with moderate vegetation and total area of deterioration. The results from the analysis of the multispectral images and the NDVI show that compared to 2016, 30.1 ha increased in the forest category with no vegetation, 28.8 ha in forests with sparse vegeta...

Floristic composition and rangeland condition of the Phynaya Peasant Community (located North of Pitumarca district and EastNorth of Canchis Province, Cusco region) were evaluated to estimate stocking rate under climate change scenario. Floristic composition, vegetation cover, and plant vigor were evaluated on 79 step-transects of 200 m in six rangeland sectors. Preliminary results reveal that there are 60 species, grouped in 13 families, where the dominant families were Poaceae (46.67%), Asteraceas (15%) and seudograsses (13.3%), of which, 45% were palatable for alpacas. Of the total grazing areas, alpacas´ areas represent 70.4%, llamas 15.4%, cattle 3.5%, sheep 4.5% y vicunas 6.3%. Actual stocking was 1 alpaca unit per hectare while stocking rate average estimated was fair with supportability of 0.78 UAl/ha; thus, rangelands are considered on degradation process

Menciona que la teledetección y los sistemas de información geográfica son herramientas que se utilizan para la gestión de recursos naturales. Sin embargo, las imágenes satelitales como Landsat han presentado limitaciones en la resolución espacial, espectral y temporal para el campo de la agricultura y la ganadería de precisión. Frente a ello, aparecen como alternativa los microsensores adheridos a sistemas aéreos no tripulados (UAS). Así, el objetivo del estudio fue identificar y estimar la biomasa de las comunidades vegetales de tolar y bofedales de puna seca a través de sensores multiespectrales incorporados en los UAS. Para determinar la altura de vuelo, se recopilaron imágenes de las comunidades vegetales con sensores multiespectrales. Paralelamente, se recolectaron muestras de vegetación en las transectas fijas que formaban parte de los puntos de control en tierra. Las...

Remote sensing and geographic information systems are tools that in the last decade have been widely used in the management of natural resources, however, they have presented deficiencies for precision livestock studies due to the quality of spatial resolutions, spectral and temporal. Faced with this limitation, microsensors appear as an alternative in Unmanned Aerial Systems (UAS) that allow obtaining orthophotographs with better resolutions. Considering these advantages, a study was developed to determine the best flight height in the detection and identification of the tolar and bofedal plant communities of the dry puna. For the study, RGB and NDVI photographs were collected with ZENMUSE X3 DJI RGB-NDVI sensors in UAS with flight heights of 25, 50, 75 and 100 m. In the field, tola plants and DIMU cushions were counted in quadrants of 10 m x 10 m (100 m2). The preparation of orthophoto...

Remote sensing with large-scale satellite images for precision studies in grasslands has spatial and spectral resolution limitations. Against this, using spectral signs and vegetation indices obtained with microsensors transported by unmanned aerial vehicles (UAV) constitutes a more accurate alternative for biomass estimation. In the fieldwork, images were acquired with microsensors, and fixed transects of 100 m were used where vegetation samples were collected. The photographs acquired with the UAV were processed in Pix 4D, Arc Gis, and algorithms elaborated in R programming language. The biomass estimation was carried out with Multiple Linear Regression, Vector Support Machine, and Random (Forest Random) models. The Random model showed a Kappa coefficient of 0.94 in the training set and 0.901 in the test set (R2 = 0.482). The Random Forest model predicted 3 g/pixel of MV for Puna grass...

The estimation and variation of the vegetation cover of the Amazon forest generated by anthropic activity in Huepetuhe had the purpose of estimating the loss of vegetation and the deforestation rates for an Amazon forest, the study was carried out using Landsat 8 satellite images, the treatment of the raster images was made using the ERDAS software, the images were subjected to geometric and radiometric corrections, for this purpose control points were taken on the ground, for the analysis four categories of forest degradation were established: Forest with null vegetation with presence of bare soil, forest with sparse vegetation, forest with moderate vegetation and total area of deterioration. The results from the analysis of the multispectral images and the NDVI show that compared to 2016, 30.1 ha increased in the forest category with no vegetation, 28.8 ha in forests with sparse vegeta...

Floristic composition and rangeland condition of the Phynaya Peasant Community (located North of Pitumarca district and EastNorth of Canchis Province, Cusco region) were evaluated to estimate stocking rate under climate change scenario. Floristic composition, vegetation cover, and plant vigor were evaluated on 79 step-transects of 200 m in six rangeland sectors. Preliminary results reveal that there are 60 species, grouped in 13 families, where the dominant families were Poaceae (46.67%), Asteraceas (15%) and seudograsses (13.3%), of which, 45% were palatable for alpacas. Of the total grazing areas, alpacas´ areas represent 70.4%, llamas 15.4%, cattle 3.5%, sheep 4.5% y vicunas 6.3%. Actual stocking was 1 alpaca unit per hectare while stocking rate average estimated was fair with supportability of 0.78 UAl/ha; thus, rangelands are considered on degradation process

Universidad Nacional Agraria La Molina. Escuela de Posgrado. Doctorado en Ciencia Animal

The study was carried out in the river wetlands of San Pedro and San Pablo adjacent to the Vilcanota River in the province of Canchis, Cusco, in southern Peru. The objective was to estimate the production of aerial biomass and the animal carrying capacity of these wetlands from the analysis of samples acquired in the field and NDVI orthophotographs. The images were acquired with a Parrot sequoia multispectral camera, transported by a Matrice 100dji Drone and processed in Pix4D and ArcGIS 10.6 software. The study identified 5 types of land use: wetland, agriculture, urbanization, salt and water. The estimated biomass production with field data was 2,359.46 kg/ha and 2,885.78 kg/ha, while the estimate with NDVI orthophotographs was 2,321.71 kg/ha and 3,048.72 Kg/ha for the wetlands of San Pablo and San Pedro respectively. The estimated animal load capacity from field data was 0.48 U.V/ha/y...

The study was carried out in the river wetlands of San Pedro and San Pablo adjacent to the Vilcanota River in the province of Canchis, Cusco, in southern Peru. The objective was to estimate the production of aerial biomass and the animal carrying capacity of these wetlands from the analysis of samples acquired in the field and NDVI orthophotographs. The images were acquired with a Parrot sequoia multispectral camera, transported by a Matrice 100dji Drone and processed in Pix4D and ArcGIS 10.6 software. The study identified 5 types of land use: wetland, agriculture, urbanization, salt and water. The estimated biomass production with field data was 2,359.46 kg/ha and 2,885.78 kg/ha, while the estimate with NDVI orthophotographs was 2,321.71 kg/ha and 3,048.72 Kg/ha for the wetlands of San Pablo and San Pedro respectively. The estimated animal load capacity from field data was 0.48 U.V/ha/y...