2008
DOI: 10.1163/156853808786230497
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Density, population structure and activity pattern of Hydromedusa tectifera (Testudines-Chelidae) in a mountain stream of Córdoba province, Argentina

Abstract: The Snake-necked Turtle (Hydromedusa tectifera) is mainly distributed in the northeastern provinces of Argentina; however, some isolated populations occur in central Córdoba. This is the first report on some ecological aspects of one of these populations. Population density and annual activity pattern were characterized at Toro Muerto Stream in the Sierras region of the Córdoba province, central Argentina. Turtles were hand-captured and sex and carapace length were determined for each individual. Mark-recaptur… Show more

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Cited by 15 publications
(15 citation statements)
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“…We measured the volume of each food item using the water displacement technique with graduated cylinders of 10, 50, 100, 250 mL (Magnusson et al, 2003). We recorded food displacing < 0.1 mL as "trace" (Bonino et al, 2009). We identified vertebrate prey at the class taxonomic level and invertebrate prey at the order taxonomic level (Rocha and Siqueira, 2008).…”
Section: Sample Processingmentioning
confidence: 99%
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“…We measured the volume of each food item using the water displacement technique with graduated cylinders of 10, 50, 100, 250 mL (Magnusson et al, 2003). We recorded food displacing < 0.1 mL as "trace" (Bonino et al, 2009). We identified vertebrate prey at the class taxonomic level and invertebrate prey at the order taxonomic level (Rocha and Siqueira, 2008).…”
Section: Sample Processingmentioning
confidence: 99%
“…where F o indicates the relative frequency and V i the relative volume; values range from near 0 (low importance) to near 100 (high importance) (Bonino et al, 2009;Hart et al, 2003). We also applied the Hierarchical Index (HI), which takes the highest IRI value to calculate the percentage of all the other IRI values.…”
Section: Data Analysesmentioning
confidence: 99%
“…La dieta de las tortugas es más diversa en ambientes prístinos (e.g. Bonino et al 2009;Alcalde et al 2010), donde hay una mayor diversidad de macroinvertebrados (Ferreira et al 2014), que en aquellos ambientes más antropizados, donde aquellas especies menos tolerantes a los estresores ambientales no se registran (Klemm et al 2003;Ferreira et al 2011). Por otra parte, la distribución geográfica de cada especie hospedadora ésta relacionada directamente a la diversidad parasitaria que presente: una especie con mayor rango de distribución supone una riqueza parasitaria superior que aquella que presente una distribución más acotada (Poulin & Morand 2004).…”
Section: ¿Qué Es Un Parásito?unclassified
“…Los adultos alcanzan un tamaño mediano (300 mm de LRC aproximadamente), se caracterizan por poseer un caparazón ovoide con protuberancias dirigidas hacia atrás, particularmente marcadas en ejemplares juveniles (Cabrera 1998). Habitan gran diversidad de cuerpos de agua donde pasan la mayor parte de su tiempo alimentándose principalmente de artrópodos (Bonino et al 2009;Alcalde et al 2010). Esta tortuga no se encuentra bajo ningún grado de amenaza tanto a nivel local como internacional (Prado et al 2012).…”
Section: Hydromedusa Wagler 1830unclassified
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