Eulychnia ritteri is endemic to Peru, restricted to the northern coast of the department of Arequipa. The lack of knowledge of this species, and threats such as human activities and climate change, put the populations at risk. In this research, we examined the geographical distribution and conservation status of E. ritteri in the coastal area of the Caravelí province. In addition, the population structure and phenology in the Quebrada Vizcachani population were evaluated using plots of 10x100 m. Data on the accompanying flora and local fauna were also obtained. Eulychnia ritteri showed five populations distributed from 15°43’ to 15°47’S, with a total area of 63.62 ha (0.63 km2). The Quebrada Vizcachani population is the largest (24.5 ha) and the Cementerio population the smallest (0.018 ha). The population density evaluated is 0.06 ind/m2, where seedlings, juveniles, adults, and d...

High Andean wetlands are important ecosystems due to their ecosystem services. Carbon storage is a result of the low decomposition rate due to flooded soils and low temperatures. The carbon content stored in the high Andean wetland of Chalhuanca (Arequipa) was estimated and the value of this service was calculated. For this purpose, 30 samples were taken at random, establishing three carbon pools: aboveground biomass (leaves and stems), belowground biomass (roots) and organic soil. The samples were obtained with an auger-type device; each sample was dried at 65°C for at least 24 hours and the carbon content was determined using the Walkey-Black method and calculations and statistical tests were performed. The total carbon stored in relation to the area of the wetland was approximately 795,415.65 tons of CO2. The fraction of carbon per sample is higher in aerial biomass (49%), followed b...

High Andean wetlands are important ecosystems due to their ecosystem services. Carbon storage is a result of the low decomposition rate due to flooded soils and low temperatures. The carbon content stored in the high Andean wetland of Chalhuanca (Arequipa) was estimated and the value of this service was calculated. For this purpose, 30 samples were taken at random, establishing three carbon pools: aboveground biomass (leaves and stems), belowground biomass (roots) and organic soil. The samples were obtained with an auger-type device; each sample was dried at 65°C for at least 24 hours and the carbon content was determined using the Walkey-Black method and calculations and statistical tests were performed. The total carbon stored in relation to the area of the wetland was approximately 795,415.65 tons of CO2. The fraction of carbon per sample is higher in aerial biomass (49%), followed b...

High Andean wetlands are important ecosystems due to their ecosystem services. Carbon storage is a result of the low decomposition rate due to flooded soils and low temperatures. The carbon content stored in the high Andean wetland of Chalhuanca (Arequipa) was estimated and the value of this service was calculated. For this purpose, 30 samples were taken at random, establishing three carbon pools: aboveground biomass (leaves and stems), belowground biomass (roots) and organic soil. The samples were obtained with an auger-type device; each sample was dried at 65°C for at least 24 hours and the carbon content was determined using the Walkey-Black method and calculations and statistical tests were performed. The total carbon stored in relation to the area of the wetland was approximately 795,415.65 tons of CO2. The fraction of carbon per sample is higher in aerial biomass (49%), followed b...

Cactaceae es una familia americana muy diversa en los Andes occidentales, no obstante, aún su diversidad y distribución no es precisa, es necesario realizar inventarios exhaustivos de especies en localidades potencialmente biodiversas. Es por ello que, esta investigación busca determinar la diversidad y distribución de Cactaceae en el Valle de Cháparra. Se realizaron visitas de campo desde el año 2015 al 2019, abarcando toda la extensión del valle (zona de costa, valle y zona alta), desde 100 hasta 3500 m; se realizaron búsquedas intensivas, con recolecciones botánicas, se tomaron datos geográficos (coordenadas, altitud), fotografías y los taxones fueron determinados con bibliografía especializada. Se registra un total de 23 taxones, siendo 18 endémicos de Perú y dos exclusivos de Arequipa, en cuanto a la distribución, Cactaceae se presenta desde 170 hasta >3000 m, en l...

Cactaceae es una familia americana muy diversa en los Andes occidentales, no obstante, aún su diversidad y distribución no es precisa, es necesario realizar inventarios exhaustivos de especies en localidades potencialmente biodiversas. Es por ello que, esta investigación busca determinar la diversidad y distribución de Cactaceae en el Valle de Cháparra. Se realizaron visitas de campo desde el año 2015 al 2019, abarcando toda la extensión del valle (zona de costa, valle y zona alta), desde 100 hasta 3500 m; se realizaron búsquedas intensivas, con recolecciones botánicas, se tomaron datos geográficos (coordenadas, altitud), fotografías y los taxones fueron determinados con bibliografía especializada. Se registra un total de 23 taxones, siendo 18 endémicos de Perú y dos exclusivos de Arequipa, en cuanto a la distribución, Cactaceae se presenta desde 170 hasta >3000 m, en l...