Hugo Dueñas Linares, Joel Peña Valdeiglesias, Sufer Baéz Quispe, Nino Bejar Chura, Samuel Berrocal Nieto, Jorge Santiago Gárate Quispe
{"title":"Influencia de la conservación de bosques en la diversidad y composición florística arbórea en el sureste de la Amazonía peruana","authors":"Hugo Dueñas Linares, Joel Peña Valdeiglesias, Sufer Baéz Quispe, Nino Bejar Chura, Samuel Berrocal Nieto, Jorge Santiago Gárate Quispe","doi":"10.22386/ca.v7i1.268","DOIUrl":"https://doi.org/10.22386/ca.v7i1.268","url":null,"abstract":"El objetivo del presente estudio fue de evaluar la influencia de la conservación de bosques en la diversidad y composición florística en Madre de Dios (Perú). Analizamos 53 transectos Gentry en bosques protegidos y no protegidos. Todos los individuos con un DAP ≥ 2,5 cm fueron registrados y se calculó los atributos florísticos de riqueza de especies, géneros, familias y diversidad. El ANOVA fue utilizado para la comparación de atributos florísticos y se utilizaron técnicas multivariadas para evaluar y representar la similitud florística. Un total de 915 especies fueron registradas, representadas en 11404 individuos, 329 géneros y 90 familias. La riqueza de especies encontradas en el presente estudio es inferior a otros estudios en la Amazonía Peruana. En los bosques protegidos la abundancia fue significativamente superior a los bosques no protegidos. En los bosques de terraza alta se encontraron una mayor riqueza y diversidad de especies que en los de terraza inundable. Interesantemente, no encontramos diferencias significativas en la riqueza y diversidad de especies entre los bosques de terraza alta protegidos y no protegidos (ANOVA, P<0,05), pero si encontramos diferencias significativas en la composición florística entre estos dos tipos de bosques (PERMANOVA, P<0,001). Estimamos que en Madre de Dios existen 1430±130 especies de árboles >2,5cm DAP.","PeriodicalId":30588,"journal":{"name":"Ciencia Amazonica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2020-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43149613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Juan José Palacios Vega, Ricardo Zárate-Gómez, Reynaldo Javier Minaya Vela, M. Brañas, Julinho Edilberto Benavides Rios
{"title":"Predicción de la pérdida de la cobertura vegetal por aumento de áreas urbanas en Iquitos, Perú","authors":"Juan José Palacios Vega, Ricardo Zárate-Gómez, Reynaldo Javier Minaya Vela, M. Brañas, Julinho Edilberto Benavides Rios","doi":"10.22386/ca.v7i1.263","DOIUrl":"https://doi.org/10.22386/ca.v7i1.263","url":null,"abstract":"La perdida del bosque amazonico ocasionada por el crecimiento de las ciudades afecta de manera directa al clima, generando islas de calor en areas urbanas y un deterioro o perdida de habitats naturales de especies de flora y fauna en areas periurbanas. No existe mucha informacion espacial sobre los cambios de cobertura vegetal ocasionados por el crecimiento urbano, ni sobre sus efectos en un mediano y largo plazo, a pesar que el conocimiento de estos cambios es fundamental para la planificacion y la gestion del territorio urbano y rural. El objetivo del estudio fue determinar un escenario de prediccion para la perdida del bosque en la ciudad de Iquitos al 2029. Para ello se procesaron en Google Earth Engine (GEE) datos del Indice de Vegetacion de Diferencia Normalizada (NDVI) de imagenes Landsat del periodo 1999 y 2018, lo que permitio, aplicando Redes Neuronales Artificiales y Automatas Celulares, generar un escenario para el ano 2029. El principal cambio para el ano 2029 se corresponde con las categorias de “vegetacion no intervenida” y “construido”, pronosticando una perdida de 375 ha en el primero y un aumento de 318 ha en el segundo. Se concluye que GEE permite obtener datos procesados de imagenes de satelite que son utiles y efectivos, los escenarios obtenidos fueron moderados y sustanciales, con una tendencia a la perdida de la vegetacion por aumento de la categoria “construido” en la ciudad de Iquitos y alrededores.","PeriodicalId":30588,"journal":{"name":"Ciencia Amazonica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2020-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45024269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Entomofauna de interés forense asociada a la descomposición de Sus scrofa domesticus (Cerdo doméstico) en la Amazonía peruana","authors":"Jenny Pizango-Pérez, Francisca Milagros Cachi-Rios, Arturo ACOSTA-DÍAZ, Ricardo Zárate-Gómez, Elizabeth Gines-Carrillo","doi":"10.22386/ca.v7i1.262","DOIUrl":"https://doi.org/10.22386/ca.v7i1.262","url":null,"abstract":"The objective of this study is to further our understanding of the dynamics of invertebrate decomposers of forensic interest. Our goal was to determine the relative abundance, species richness and the succession of invertebrate fauna according to distinct stages of decomposition of the domestic pig (Sus scrofa domesticus). The study was performed in March of 2017 in two distinct environments. One subject was exposed in tree provided shade and the second subject was in deteriorated terrain exposed to solar radiation. We identified five stages of decomposition: fresh, bloated, active decay, advanced decay and skeletonization. A total of 5,064 invertebrates were registered, belonging to the two Orders (Diptera and Coleoptera) comprising of 14 families, 18 species and 5 morphotypes. Diptera was the most abundant in both environments with 95,52% abundance in shade and 88,49% abundance in sunshine. The following species were identified: Chrysomya albiceps, Chrysomya megacephala, Lucilia sericata, Cochliomyia macellaria, Hemilucilia sp. (Diptera: Calliphoridae), Fannia canicularis, Fannia scalaris (Diptera: Fanniidae), Musca domestica, Morphotype I (Diptera: Muscidae), Megaselia scalaris, Morphotype I (Diptera: Phoridae), Sarcophaga sp., Morphotype I (Diptera: Sarcophagidae), Dermestes maculatus (Coleoptera: Dermestidae), Euspilotus sp., and Hister sp., (Coleoptera: Histeridae), Canthon subhyalinus, Eurysternus sp. (Coleoptera: Scarabaeidae), Oxelytrum cayennensis (Coleoptera: Silphidae), Polynonchus sp. (Coleoptera: Trogidae). The invertebrate composition of forensic interest recorded in this study can be used to plot a post-mortem time frame with relative accuracy.","PeriodicalId":30588,"journal":{"name":"Ciencia Amazonica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2020-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44559284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luis Alexander Sánchez Cerrón, M. C. RAMOS-RODRÍGUEZ, Luis Ruiz, Javier del Águila Chávez, Robin José Vásquez Torres
{"title":"Aporte al conocimiento de la anguilla eléctrica (Electrophorus electricus Linneo, 1776) en el río Itaya, Loreto, Perú","authors":"Luis Alexander Sánchez Cerrón, M. C. RAMOS-RODRÍGUEZ, Luis Ruiz, Javier del Águila Chávez, Robin José Vásquez Torres","doi":"10.22386/ca.v7i1.269","DOIUrl":"https://doi.org/10.22386/ca.v7i1.269","url":null,"abstract":"El estudio de Electrophorus electricus requiere relevancia en la Amazonia peruana debido al aprovechamiento de individuos extraidos de sus habitats, donde aun se desconocen el estado de sus poblaciones; ello nos motivo a estudiar la abundancia a traves de captura por unidad de esfuerzo (CPUE) y correlaciones de medidas morfometricos en la cocha Anguillal, rio Itaya, asi como el analisis del aprovechamiento de la especie con fines comerciales en toda la cuenca del Itaya y la region Loreto. Sectorizamos la cocha en cuatro zonas donde tuvimos 90 unidades de muestreo (45 en temporada de creciente y 45 en vaciante), aplicamos dos metodos, de anzuelo tipo artesanal y espineles de superficie. Registramos 14 individuos y 11 recapturas, donde la CPUE fue ligeramente mayor en vaciante con el metodo de anzuelo. Se evidencia correlacion positiva entre la longitud total y el peso (R²= 0,941). En cuanto al aprovechamiento se realiza comercio de exportacion ornamental de Electrophorus electricus en diversas cuencas de la region Loreto, donde la demanda del recurso se ha incrementado progresivamente en los cuatro ultimos anos. La informacion generada es un precedente para ulteriores estudios con miras de aprovechamiento sostenible de la especie en ecosistemas amazonicos.","PeriodicalId":30588,"journal":{"name":"Ciencia Amazonica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2020-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42950458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Milagros Natalia Rimachi-Taricuarima, Juan Jesús Pérez-Gardini, E. TIRADO-HERRERA, Ricardo Zárate-Gómez, Linder Felipe Mozombite-Pinto
{"title":"Plantas consumidas por Lagothrix lagotricha lagotricha Humboldt, 1812 en la Amazonía peruana","authors":"Milagros Natalia Rimachi-Taricuarima, Juan Jesús Pérez-Gardini, E. TIRADO-HERRERA, Ricardo Zárate-Gómez, Linder Felipe Mozombite-Pinto","doi":"10.22386/ca.v7i1.267","DOIUrl":"https://doi.org/10.22386/ca.v7i1.267","url":null,"abstract":"Lagothrix lagotricha lagotricha is an important bioindicator species of the Peruvian Amazon. Its flesh comprises part of the diet of communities ranging from indigenous to rural and urban. L. l. lagotricha fulfills an important ecological function as a seed disperser. For this reason, it is imperative to know which items and plant species it consumes in this part of the Amazon. This study identified plant species and their corresponding parts consumed by L. l. lagotricha. The location of this study is in the Güeppí-Sekime National Park (PNGS) in primary rainforest on the eastern shore of the Lagartococha River, northeastern Peru. A group of 19 individuals were observed for 485 hours from June 2017 to September 2017. A total of 20 plant items were identified and they included 8 edible vegetative items: leaf, fruit, infructescence, flower, inflorescence, resin, root and stem. The most important food items were: mesocarp 26,28%, entire leaves 26,28%, endocarp 10,22% and seeds 9,49%. The most consumed out of a total of 98 plant species, grouped into 42 families, were: Arecaceae, Fabaceae y Araceae. This is the first study that contributes to the understanding of the diet and plant species consumed by L. l. lagotricha, which gives us an idea of the ecological role of the species in the complex structure of the Amazon forest. In addition, this research can be used as a basis for initiating other research, such as studies of seed dispersal and predation.","PeriodicalId":30588,"journal":{"name":"Ciencia Amazonica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2020-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47821734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Secuestro de dióxido de carbono y emisión de oxígeno del bosque de Puerto Almendra, Loreto, Perú","authors":"C. Escobar, Abrahan Cabudivo Moena, Saron Quintana Vásquez, Rosana Gonzales Arzubialdes","doi":"10.22386/ca.v7i1.264","DOIUrl":"https://doi.org/10.22386/ca.v7i1.264","url":null,"abstract":"In this study, we quantified the gas exchange of Carbon Dioxide (CO2) and Oxygen (O2) in four species of trees located in the Puerto Almendras Arboretum “El Huayo”, Loreto Peru. The following species were subject to our study: Alchornea triplinervia, Parkia velutina, Cedrelinga cateniformis y Eschweilera grandifolia each species with a specific wood density ranging from very low density, low, medium and high density. The data was obtained through 4 forestry plot inventories of 1 hectare each. We calculated the biomass and volume applying allometric formulas established by the Intergovernmental Panel on Climate Change-IPCC. The results highlight that the densest species, E. grandifolia has the most sought out values in relation to CO2 sequestration, storage and oxygen production. Following E. grandifolia is C. cateniformis with medium density; meanwhile per hectare we found in E.grandifolia and A. triplinervia. The Tukey test and F test for ANOVA in the four study sites reveal a 0,05 level of confidence and is significant for all of the sources of proposed variables. Simultaneously the correlation analysis shows that the variables (timber density / Biomass), (timber density / CO2 storage), (timber density / CO2 capture) and (timber density / O2 emission) present a highly significant correlation (p = 0,0244) with a Pearson coefficient equal to r = 0,99751.","PeriodicalId":30588,"journal":{"name":"Ciencia Amazonica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2020-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47081555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Betsy Alva Ocampo, Meri Del Pilar Ushiñahua Álvarez, Roosevelt García-Villacorta
{"title":"Tipos de forrajeo y gremios alimenticios de aves en bosques sobre arena blanca de la Reserva Nacional Allpahuayo Mishana, Loreto, Perú","authors":"Betsy Alva Ocampo, Meri Del Pilar Ushiñahua Álvarez, Roosevelt García-Villacorta","doi":"10.22386/ca.v7i1.265","DOIUrl":"https://doi.org/10.22386/ca.v7i1.265","url":null,"abstract":"The objective of this study was to learn about the types of foraging and feeding guilds of birds present in white sands forest ecosystem of the Allpahuayo Mishana National Reserve (RNAM). The study took place in two one-hectare plots of white sand forest between the months of October 2014 and March 2015. The ecosystems consisted of high wet varillal (HWV) and high dry varillal (HDV), we used, avian point count to come to our results (APC). A total of 10 types of foraging strategies were observed: sally, glean, hammer, hang, screen, pick up, flake, probe, lunge and flush pursue. 76 species of birds were registered between the two plots. With this classification, the most dominant foraging behaviors were sallying, followed by gleaning. The least dominant behavior was probing. Six feeding guilds were recorded: insectivorous, frugivorous, frugivorous / insectivorous, frugivorous / granivorous, nectivorous and carnivore. The insectivorous guild was the most dominant, followed by frugivorous. The least dominant was: nectivorous and carnivore.","PeriodicalId":30588,"journal":{"name":"Ciencia Amazonica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2020-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47438501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Brañas, Cecilia Núñez Pérez, Ricardo Zárate Gómez
{"title":"Identificación de especies del género Ischnosiphon utilizadas por dos comunidades Ticuna del Perú para elaborar sus tejidos tradicionales","authors":"M. Brañas, Cecilia Núñez Pérez, Ricardo Zárate Gómez","doi":"10.22386/CA.V6I2.119","DOIUrl":"https://doi.org/10.22386/CA.V6I2.119","url":null,"abstract":"El pueblo ticuna ha ocupado desde tiempos ancestrales el territorio que comprende actualmente la triple frontera entre Brasil, Colombia y Peru, manteniendo, a traves de los anos y a pesar de la separacion limitrofe, ciertos vinculos sociales y culturales, fortalecidos a traves del intercambio de saberes y practicas culturales. En el Peru existe una escueta bibliografia etnobiologica sobre los usos tradicionales que los ticuna dan a las especies vegetales de su entorno, a diferencia de lo que ocurre en Colombia y Brasil. En ese sentido se llevo a cabo una investigacion para identificar las especies del genero Ischnosiphon, utilizadas tradicionalmente por dos comunidades ticuna de la cuenca baja del rio Amazonas para elaborar sus tejidos utilitarios y rituales. Las comunidades de estudio fueron Bufeo Cocha y Santa Rita de Mochila, ubicadas en el Distrito de Ramon Castilla, Provincia de Mariscal Ramon Castilla, en el Departamento de Loreto (Peru). La investigacion permitio determinar el sistema de uso tradicional de las especies del genero Ischnosiphon, localmente conocidas como huaruma. Se determinaron tres especies utilizadas por estas comunidades en sus tejidos tradicionales, realizandose la identificacion taxonomica de las mismas (I. arouma, I. obliquus, I. puberulus) y registrandose el uso que los ticuna del bajo Amazonas dan a las fibras extraidas de sus tallos.","PeriodicalId":30588,"journal":{"name":"Ciencia Amazonica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68383819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Resúmenes Presentaciones Orales VI ECAP","authors":"Gabriel Emilio Vargas Arana","doi":"10.22386/ca.v6i2.122","DOIUrl":"https://doi.org/10.22386/ca.v6i2.122","url":null,"abstract":"La produccion agricola de monocultivos a gran escala han generado el desenvolvimiento de tecnicas para mejorar la calidad de los cultivos, entre ellas el uso de productos fisicos quimicos y biologicos para la proteccion contra plagas y enfermedades, trayendo como consecuencia la fragmentacion y desplazamiento de habitas. En este estudio se sugiere a la especie Dugesia tigrina (Girard) como organismo modelo para el biomonitoramiento de ecosistemas acuaticos de la cuenca Araguaia-Tocantins/Brasil, areas de intensa produccion agricola.","PeriodicalId":30588,"journal":{"name":"Ciencia Amazonica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68384051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Resúmenes Presentaciones de Pósteres VI ECAP","authors":"Gabriel Emilio Vargas Arana","doi":"10.22386/ca.v6i2.123","DOIUrl":"https://doi.org/10.22386/ca.v6i2.123","url":null,"abstract":"En este articulo se pueden encontrar los resumenes de las presentaciones de posteres del VI Encuentro Cientifico de la Amazonia Peruana, desarrollado el 27 y 28 de octubre de 2016 en la ciudad de Iquitos, Peru.","PeriodicalId":30588,"journal":{"name":"Ciencia Amazonica","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2016-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68383623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}