Preferencias de hábitat del Ñandú (Rhea Pennata D'orbigni, 1834) en matorrales intervenidos en Chile austral

Kusch, Alejandro; Henríquez, Juan Marcos

doi:10.4067/s0718-686x2011000100003

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…Therefore, we decided to use the fecal count technique as an indirect method for estimating population density (Ojasti and Dallmeier 2000). This method has been used effectively in other studies on wild populations of rheas (Bazzano et al 2002;Herrera et al 2004;Kusch and Henríquez 2011). Six samplings were conducted between 2011 and 2012 (September and November 2011; March, April, July, and November 2012).…”

Section: Resultsmentioning

confidence: 99%

Density and abundance of Rhea pennata garleppi (Struthioniformes: Rheidae) in the Puna ecoregion of Argentina

Marinero

Cortez

Navarro

et al. 2014

Rev. Chil. de Hist. Nat.

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Background: Rhea pennata is classified internationally as a near-threatened species, with the subspecies R. p. garleppi being listed as endangered. Finding: The aim of this study was to provide updated information on the density and abundance of R. p. garleppi in the southern Puna ecoregion of Argentina. Density was estimated indirectly on the basis of monthly feces counts during 2011 and 2012, using line-transect surveys. Monthly abundance was calculated by multiplying the density of each month by the area of the reserve (400 km 2 ). Population size range was calculated considering the average of the months with the highest abundance (and density) as the upper limit and the average of the months with the lowest abundance (and density) as the lower limit. The population size of this subspecies varied between 300 individuals (±60), with a density of 0.75 individuals/km 2 (±0.15) during the non-breeding season, and 188 individuals (±40), with a density of 0.47 individuals/km 2 (±0.10), during the reproductive season.

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Section: Resultsmentioning

confidence: 99%

Density and abundance of Rhea pennata garleppi (Struthioniformes: Rheidae) in the Puna ecoregion of Argentina

Marinero

Cortez

Navarro

et al. 2014

Rev. Chil. de Hist. Nat.

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“…The flightless bird Rhea pennata or choique is the largest bird living in the open steppes of Patagonia and reaching 53° S. It prefers areas with grasses and floral diversity (Kusch & Henríquez, ) and is described as an omnivore feeding mainly on shrubs, leafs, stems and roots of various grasses (Bonino et al ., ).…”

Section: The Study Area: Climate and Ecologymentioning

confidence: 99%

Isotopic Ecology and Human Diets in the Forest–Steppe Ecotone, Aisén Region, Central‐Western Patagonia, Chile

Méndez

Barberena

Reyes

et al. 2013

Intl J of Osteoarchaeology

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This work aims to build a comprehensive isotopic ecology with the ultimate purpose of assessing long‐term human diet decision‐making by means of stable isotope analysis. We present a set of δ13Ccollagen and δ15Ncollagen isotopic values on the main faunal resources from the forest and steppe areas of the Aisén region (Central‐Western Patagonia, Chile), in order to characterise their isotopic ranges and assess their consumption by past hunter–gatherer populations. Two sets of bioarchaeological remains are used for this comparison; a 10 200–9700 cal year bp assemblage from Baño Nuevo cave and a 1600–300 cal year bp assemblage gathered at different locations throughout Aisén. Isotopic signals from both assemblages indicate diets based on the consumption of protein provided by terrestrial mammals from steppe environments and no long‐term signature of forest‐resource consumption. On the other hand, the earlier group shows values that may indicate a wider dietary breadth, although this observation is preliminary. These results further suggest that the use of forests and the resources they provided, although visible through the zooarchaeological record (i.e. taxa represented at sites), must have been discontinuous and, perhaps, marginal in comparison with steppe regions. Copyright © 2013 John Wiley & Sons, Ltd.

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Las Quemas Rockshelter: Understanding Human Occupations of Andean Forests of Central Patagonia (Aisén, Chile), Southern South America

et al. 2016

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Hunter-gatherer occupations of the forests of Patagonia are still not well understood compared to those of the open steppe and the coasts. The paucity of forest sites with a thorough chronological framework and the incomplete picture of climate-human dynamics in such environments pose a challenge to understanding the occupations of such habitats. This paper presents recent work at the Las Quemas rockshelter, an archaeological site located in the Andean forests of the Aisén region (44°38’ S) dating between 6100 and 2400 cal B.P. We examine the context of the site, its rock art, and the technological and functional dimensions of its lithic assemblage. By comparing these records with local environmental reconstructions that report forest area fluctuations after the Post-Glacial period, this study provides novel data for a comprehensive regional-scale model of human occupations in central Patagonian forests. Following an initial mid-Holocene occupation, recurring occupational events at the site coincide with a significant contraction of forested area in the region during the late Holocene. The results are discussed in regard to regional archaeological data and current models of forest occupation in Patagonia.

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Preferencias de hábitat del Ñandú (Rhea Pennata D'orbigni, 1834) en matorrales intervenidos en Chile austral

Cited by 3 publications

References 11 publications

Density and abundance of Rhea pennata garleppi (Struthioniformes: Rheidae) in the Puna ecoregion of Argentina

Density and abundance of Rhea pennata garleppi (Struthioniformes: Rheidae) in the Puna ecoregion of Argentina

Isotopic Ecology and Human Diets in the Forest–Steppe Ecotone, Aisén Region, Central‐Western Patagonia, Chile

Las Quemas Rockshelter: Understanding Human Occupations of Andean Forests of Central Patagonia (Aisén, Chile), Southern South America

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