Caldasia 38(1): 165-181. 2016 RESUMEN Se analizó el contenido de 546 estómagos de 24 especies de anuros del piedemonte de la vertiente oriental de la Cordillera Oriental de Colombia. Cada estómago fue extraído, disectado y preservado, se realizaron mediciones de masa y volumen en lleno y vacío. Posteriormente, para cada una de las presas, se realizó la identificación taxonómica, conteo y se midieron el ancho y el largo de aquellas completas para establecer su aporte al volumen estomacal. Se identificaron 37 ítems alimenticios representados en 2986 individuos o partes de ellos. El porcentaje de vacuidad alcanzó una media de 25,2±23,02% del total estudiado. Los ítems más representativos corresponden a la Clase Insecta (95%), distribuidos en Hymenoptera (72.9%), Coleoptera (8%), Isoptera (6.2%) y Orthoptera (1,6%). Dentro de los artrópodos no insectos el ítem más representativo está en la Clase Arachnida (4%). La mayoría de las especies presentan valores medios y altos de amplitud de nicho, es decir, son generalistas en el consumo de presas.Palabras clave. Amphibia, Ecología Trófica, Áreas Protegidas, Orinoquia. ABSTRACTWe analyzed the contents of 546 stomachs of 24 species of anurans from the foothills of the eastern slopes of the Eastern Cordillera of Colombia. We removed, dissected and preserved each stomach, mass and volume measurements were performed in full and empty. Subsequently, each prey was identified, counted and measured (width and length) to determine its contribution to the stomach volume. We identified 37 food items represented in 2986 individuals or parts of them. The percentage of voidness reached an average of 25, 2±23, 02% of the total studied. The most representative items correspond to the class Insecta (95%), distributed in Hymenoptera (72.9%), Coleoptera (8%), Isoptera (6.2%) and Orthoptera (1.6%). Within the non-insect doi: http://dx.doi.org/10.15446/caldasia.v38n1.57836
Titulo en ingles: The macroscopic and microscopic anatomy of the urogenital system of the Savannah side-necked turtle Podocnemis vogli Muller, 1935 (Testudines Pelomedusidae)Titulo en portugues: Anatomia macroscópica e microscópica do sistema urogenital da tartaruga sabanera Podocnemis Vogli Muller, 1935. (Testudines-Pelomedusidae)Resumen: En este artículo, se describe la anatomía macroscópica y microscópica del sistema urogenital de la tortuga sabanera Podoc- nemis vogli (Testudines Pelomedusidae), para tal fin se utilizaron 10 ejemplares adultos (cinco machos y cinco hembras), clí- nicamente sanos procedentes del zoológico Bioparque los Ocarros de Villavicencio-Meta. Se sacrificaron los animales con Pentobarbital Sódico 31.4 mg/kg se realizó disección y estableció las relaciones morfométricas de los diferentes órganos. Se tomaron muestras de los órganos en formalina buferada para análisis histológico. Se identificó la presencia de riñones de tipo metanéfrico con numerosos glomérulos, que confluyen mediante uréteres a las bolsas cloacales, las dos estructuras estaban revestidas de un epitelio simple cúbico. Los oviductos presentaron estriaciones sin presencia de espermatecas, ni de ensanchamiento a manera de útero. El hemipene presento 5 secciones y una ranura uretral mediana la cual conforma un saco espermático. Los hallazgos macro y microscópicos son similares a los encontrados en reptiles y las pequeñas dife- rencias pueden estar relacionados con las características biológicas propias de la especie.Palabras clave: Tortuga sabanera, Podocnemis vogli anatomía, histología, sistema urogenitalAbstract: This article describes the macroscopic and microscopic anatomy of the Podocnemis vogli (Testudines Pelomedusidae) Savannah side-necked turtle’s urogenital system. Ten clinically healthy adult examples (five male and five females) were used for such purpose; they came from the Ocarros zoological bio-park near Villavicencio, in the Meta department. The animals were sacrificed with 31.4 mg/Kg pentobarbital sodium they were dissected and the different organs’morpho me- tricrelation ships were established. Samples were taken from the organs and placed in buffered formalin for histological analysis. Metanephric kidneys were identified, having numerous glomeruli converging via urethra to the cloacal bags; both structures were coated in a simple cuboidal epithelium. The oviducts had striations with out the presence of spermathecas, or widening like the uterus. The hemipene had 5 sections and a urethral groove forming aspermatic sack. The macro and microscopic findings were similar to those found in reptiles and the small differences could have been related to the spe- cies’ biological characteristics.Key words: Turtle, Savannah side-necked turtle Podocnemis vogli, anatomy, histology, urogenital system.Resumo: Neste artigo, vamos descreve-se a anatomia macro e microscópica do sistema urogenital da tartaruga (Sabanera Podocne- mis Vogli (Testudines Pelomedusidae), para estefim foran utilizados 10 indivíduos adultos (cinco machos e cinco fêmeas), clinicamente sadios, procedentes do Bioparque Los Ocarros de Villavicencio -Meta. Os animais foram sacrificados com pentobarbital sódico 31,4 mg / kg foi realizada disseção e estabelecida as relações morfométricas dos diferentes órgãos. Foram tomadas amostras dos órgãos em formalina tamponada para análise histológica. Identificada a presença de rins do tipo metanéfrico numerosos glomérulos, que fluem através dos ureteres as bolsas cloacais as duas estruturas estavam revestidas de epitélio simples cúbico. Os oviductos não apresentaram a presença de estrias sem presencia de espermate- canem espalhamento na forma de útero. Os hemipénis apresentaram cinco seções e um sulco uretral meio que forma um saco de esperma. Os achados macroscópicos e microscópicos são semelhantes aos encontrados em répteis e pequenas diferenças podem estar relacionadas com as características biológicas da espécie.Palavras chave: Tartarugas, sabanera Podocnemis Vogli, Anatomia, Histologia, sistema urogenital
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