Hábitos alimenticios de Lagidium viscacia y Abrocoma cinerea: roedores sintópicos en ambientes altoandinos del norte de Chile

Cortés, Arturo; Rau, Jaime R.; Miranda, Eduardo; Jiménez, Jaime E.

doi:10.4067/s0716-078x2002000300009

Cited by 31 publications

(26 citation statements)

References 22 publications

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“…Regarding the herbaceous plants, the Poaceae S. chrysophylla, highly consumed by the short-tailed chinchilla and the vicuña, has already been reported for the diet of other camelids and chinchillids (Benítez et al, 2006;Cajal, 1989;Cortés et al, 2002bCortés et al, , 2003a. Genus Stipa includes some species important as food source for herbivorous vertebrates (e.g., camelids, cattle, rodents) in the areas where they are dominant (Benítez et al, 2006;Cortés et al, 2002b).…”

Section: Discussionmentioning

confidence: 97%

“…Shrubs were consumed by the three mammal species but mainly by the ashy chinchilla rat, whose diet mostly consisted of bushy plants, whereas these played a secondary role in the diet of the short-tailed chinchilla and the vicuña. It is worth noting that the shrub species predominantly consumed by ashy chinchilla rat, B. tola, has already been reported in the diet of this species in northern Chile (Cortés et al, 2002b). Baccharis tola belongs to a genus composed of species toxic for some herbivores (Alda et al, 2009;Stegelmeier et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

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Trophic preferences in an assemblage of mammal herbivores from Andean Puna (Northern Chile)

Tirado

Cortés

Miranda-Urbina

et al. 2012

Journal of Arid Environments

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Trophic preferences in an assemblage of mammal herbivores from Andean Puna (Northern Chile)

Tirado

Cortés

Miranda-Urbina

et al. 2012

Journal of Arid Environments

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Section: Source Of Materialsmentioning

confidence: 99%

“…The title compound was isolated using medium pressure column chromatography (MPCC) from Parastrephia quadrangularis, a medicinal plant used by the Aymara Amerindians [6,7], a known producer of several flavonoids and benzoic acid derivatives with antioxidant activity [8][9][10][11]. Following our program to isolate interesting metabolites from the Atacama Desert Flora, Northern Chile [12][13][14][15][16][17][18], dried aerial parts of P. quadrangularis (1622 g) collected in april 2015 in "El Tatio", Andean mountain range of the of Atacama Desert, II Region, Northern Chile, were defatted with hexane (3 liters, 3 times in the dark, 24 hours each time) and 54.82 g were obtained after evaporation of the solvent.…”

Section: Source Of Materialsmentioning

confidence: 99%

Crystal structure of 5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,7,8-trimethoxy-4H-chromen-4-one, C₁₉H₁₈O₈

Brito

Bórquez

Simirgiotis

et al. 2017

Zeitschrift Für Kristallographie - New Crystal Structures

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C 19 H 18 O 8 , monoclinic, P2 1 /c (no. 14), a = 12.689(2) Å, b = 20.321(4) Å, c = 7.0820(13) Å, β = 105.368(13)°, V = 1760.8(6) Å 3 , Z = 4, R gt = 0.0662, wR ref (F 2 ) = 0.1788, T = 295 K. CCDC no.: 1581467The title crystal structure is shown in the figure. Tables 1 and 2 contain details on crystal structure and measurement con- ditions and a list of the atoms including atomic coordinates and displacement parameters. Source of materialThe title compound is a highly biologically active polymethoxylated flavonoid, which is anti-inflammatory and antiproliferative [1, 2], can inhibit leukocyte chemotaxis and oxygen free radical formation [3,4] and prevents cyclophosphamide and ifosfamide-induced hemorrhagic cystitis in rats [5]. The title compound was isolated using medium pressure column chromatography (MPCC) from Parastrephia quadrangularis, a medicinal plant used by the Aymara Amerindians [6,7], a known producer of several flavonoids and benzoic acid derivatives with antioxidant activity [8][9][10][11]. Following our program to isolate interesting metabolites from the Atacama Desert Flora, Northern Chile [12][13][14][15][16][17][18], dried aerial parts of P. quadrangularis (1622 g) collected in april 2015 in "El Tatio", Andean mountain range of the of Atacama Desert, II Region, Northern Chile, were defatted with hexane (3 liters, 3 times in the dark, 24 hours each time) and 54.82 g were obtained after evaporation of the solvent. Then the plant material was extracted with ethyl acetate (3 liters, 3 times in the dark, 24 hours each time. After evaporation of the solvent under vacuo at 40 o C, 485 g of a dark gummy extract was obtained. A portion of the extract (10.0 g) was filtered and submitted to a medium pressure column chromatography system composed of an 2.5 cm × 48 cm medium pressure column packed with silicagel using an isocratic solvent system of

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“…Diet analyses are essential to begin to understand physiological and ecological parameters of the species under study (Chivers & Langer 1994, Castellarini 1998, Cortés et al 2002. When resource quality and availability is low, physiological capacities and constraints are evident, showing the limits for extracting and using nutrients and energy (Kenagy et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Obsessed with grasses?: The case of mara Dolichotis patagonum(Caviidae: Rodentia)

Sombra

Mangione

2005

Rev. chil. hist. nat.

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The diet of mara (Dolichotis patagonum, Zimmeraman 1780) within the limits of Sierra de las Quijadas National Park (San Luis, Argentina) is described. Other studies regarding mara's diet showed that mara, feeds on different species of grasses and shrubs. However, there is controversy regarding the proportions of these items in the diet or whether this proportion varies seasonally. Considering mara's body size, anatomical features and physiology, we suggest that mara feeds on grasses in a greater proportion than shrubs and forbs. Moreover, giving that in this region precipitation varies considerably between seasons; it is also expected to find a correlation between the diet of mara and seasons. Fecal pellets of mara were collected during four periods including two dry, and two wet seasons. Relative frequency of each item in scats was determined by microhistological analysis. Results support the hypothesis that mara shows preference for grasses, despite they are less available than shrubs and forbs and that this preference remains constant through seasons regardless of the precipitation regime. The characteristics of mara's diet and the ecological implications of these findings are discussed.Key words: Dolichotis patagonum, diet, grasses, preference, Sierra de las Quijadas. RESUMENEn este trabajo se describe la dieta de mara (Dolichotis patagonum Zimmeraman 1780) en el Parque Nacional Sierra de las Quijadas (San Luis, Argentina). Los estudios realizados sobre su dieta indican que se alimenta de varias especies de gramíneas y arbustos. Sin embargo, existe cierta controversia acerca de la proporción en que se presentan estos ítemes, y si las mismas varían estacionalmente. En base al tamaño corporal de mara, y a sus características anatómicas y fisiológicas, se propone que mara consume una mayor proporción de gramíneas que de otras hierbas no graminiformes y dicotiledóneas en general. Además, esperamos una variación estacional de la dieta, correlacionada a una posible variación estacional en los recursos alimentarios asociada a las precipitaciones. Se colectaron muestras de heces correspondientes a cuatro estaciones en el parque, dos estaciones secas y dos lluviosas. Mediante análisis microhistológico se determinó la proporción de cada ítem medido como frecuencia de aparición en las heces. Los resultados apoyan la hipótesis de un consumo preferencial de gramíneas por parte de mara. Las gramíneas aparecen en mayor proporción en la dieta a pesar de estar en menor disponibilidad en el hábitat y sin que el régimen de precipitación tenga algún efecto. Se discuten las características de la dieta de mara y las implicancias ecológicas relacionadas con esta especie.

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Hábitos alimenticios de Lagidium viscacia y Abrocoma cinerea: roedores sintópicos en ambientes altoandinos del norte de Chile

Cited by 31 publications

References 22 publications

Trophic preferences in an assemblage of mammal herbivores from Andean Puna (Northern Chile)

Trophic preferences in an assemblage of mammal herbivores from Andean Puna (Northern Chile)

Crystal structure of 5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,7,8-trimethoxy-4H-chromen-4-one, C₁₉H₁₈O₈

Obsessed with grasses?: The case of mara Dolichotis patagonum(Caviidae: Rodentia)

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Hábitos alimenticios de Lagidium viscacia y Abrocoma cinerea: roedores sintópicos en ambientes altoandinos del norte de Chile

Cited by 31 publications

References 22 publications

Trophic preferences in an assemblage of mammal herbivores from Andean Puna (Northern Chile)

Trophic preferences in an assemblage of mammal herbivores from Andean Puna (Northern Chile)

Crystal structure of 5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,7,8-trimethoxy-4H-chromen-4-one, C19H18O8

Obsessed with grasses?: The case of mara Dolichotis patagonum(Caviidae: Rodentia)

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Crystal structure of 5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,7,8-trimethoxy-4H-chromen-4-one, C₁₉H₁₈O₈