En el mar interior de Última Esperanza: Dinámicas de ocupación y movilidad canoera en la isla Diego Portales (Magallanes, Chile)

2021 ◽  
pp. 1-19
Author(s):  
Alberto García-Piquer ◽  
Vanessa Navarrete ◽  
Nelson Aguilera ◽  
Robert Carracedo ◽  
Anna Franch ◽  
...  

Caracterizar las estrategias de movilidad de las sociedades cazadoras-recolectoras-pescadoras en ambientes insulares y litorales es fundamental para comprender la interacción humano-ambiental en el pasado. Las prospecciones en el noreste de la isla Diego Portales, en el mar interior de Última Esperanza (Magallanes, Chile), han permitido documentar ocho yacimientos arqueológicos formados por uno o varios conchales. Todos ellos se hallan ubicados en áreas de la costa al resguardo del viento dominante y con fácil acceso mediante embarcación. Los trabajos arqueológicos en dos de estos yacimientos (Bahía Easter 1 y 2) indican una estrategia de subsistencia similar durante el Holoceno tardío final, basada en el aprovechamiento de la biodiversidad de este ambiente de ecotono, con más de una docena de recursos marinos y terrestres consumidos. Entre éstas destaca en abundancia el huemul (Hippocamelus bisulcus), probablemente cazado en el litoral continental. Teniendo en cuenta las dinámicas de poblamiento y movilidad propuestas desde la etnografía o la arqueología para otras áreas del archipiélago fuego-patagónico, los resultados permiten discutir la reocupación sucesiva de puntos estratégicos de la isla, particularmente en primavera-verano, cuando la encrucijada de caminos y recursos que representa el mar interior de Última Esperanza presentaba alicientes significativos para las comunidades canoeras.

2012 ◽  
Vol 4 (3) ◽  
pp. 571-573
Author(s):  
Aaron B. A. Shafer ◽  
Paulo Corti ◽  
David W. Coltman ◽  
Juan Carlos Marín ◽  
Corey S. Davis

2011 ◽  
Vol 39 (1) ◽  
pp. 119-136 ◽  
Author(s):  
Claudia Silva ◽  
Fiorella Repetto ◽  
Daniela Droguett ◽  
Claudio Moraga ◽  
Alejandro Vila

2007 ◽  
Vol 12 (4) ◽  
pp. 535-551 ◽  
Author(s):  
CARLOS ADRIÁN SALDARRIAGA ISAZA ◽  
WALTER GÓMEZ BOFILL ◽  
HUGO SALGADO CABRERA

In this paper we study the cost-effective allocation of the land in the Cordilleran Protection Area (CPA), Region VIII, Chile, for the conservation of a highly threatened species: the Huemul (Hippocamelus bisulcus). Using a production possibilities frontier (PPF) approach, a linear programming optimization model for a ten-year time period is proposed. Our model takes into account both the preferences of the species for different habitats and the opportunity cost of the land. We evaluate different possibilities of land allocation and identify cost-effective alternatives in the provision of both conservation and income.The results confirm the hypothesis that both the population of Huemul and income from economic activities can be increased compared with current levels. Therefore the current allocation of the land in the CPA is not cost-effective.


Oryx ◽  
2016 ◽  
Vol 51 (2) ◽  
pp. 315-323 ◽  
Author(s):  
Paloma Quevedo ◽  
Achaz von Hardenberg ◽  
Hernán Pastore ◽  
José Álvarez ◽  
Paulo Corti

AbstractHabitat loss is one of the main threats to wildlife, particularly large mammals. Estimating the potential distribution of threatened species to guide surveys and conservation is crucial, primarily because such species tend to exist in small fragmented populations. The Endangered huemul deer Hippocamelus bisulcus is endemic to the southern Andes of Chile and Argentina. Although the species occurs in the Valdivian Ecoregion, a hotspot for biodiversity, we have no information on its occupancy and potential distribution in this region. We built and compared species distribution models for huemul using the maximum entropy approach, using 258 presence records and sets of bioclimatic and geographical variables as predictors, with the objective of assessing the potential distribution of the species in the Valdivian Ecoregion. Annual temperature range and summer precipitation were the predictive variables with the greatest influence in the best-fitting model. Approximately 12,360 km2 of the study area was identified as suitable habitat for the huemul, of which 30% is included in the national protected area systems of Chile and Argentina. The map of potential distribution produced by our model will facilitate prioritization of future survey efforts in other remote and unexplored areas in which huemul have not been recorded since the 1980s but where there is a high probability of their occurrence.


2019 ◽  
Vol 55 (3) ◽  
pp. 694 ◽  
Author(s):  
Felipe Hernández ◽  
Claudio Verdugo ◽  
Francisca Cárdenas ◽  
Rodrigo Sandoval ◽  
Nelly Morales ◽  
...  

2012 ◽  
Vol 244 ◽  
pp. 104-116 ◽  
Author(s):  
Claudia López-Alfaro ◽  
Cristián F. Estades ◽  
Dennis K. Aldridge ◽  
Robin M.A. Gill

2010 ◽  
Vol 91 (3) ◽  
pp. 690-697 ◽  
Author(s):  
Paulo Corti ◽  
Heiko U. Wittmer ◽  
Marco Festa-Bianchet

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