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Life History Biology of the Desert Nesting Seagull Larus modestus

Description: Gray gulls Larus modestus are unique among birds of northern Chile as the only species nesting in the interior Atacama Desert, and the only seagull nesting far (30 - 100 km) from surface water. During breeding-nesting (August - February) gray gulls congregate on the coast of northern Chile where they feed and initiate courtship. As early as August, breeding pairs commute daily to the inner desert to establish nesting territories, round-trip distances of 60-200 Km. During incubation (30 days) an… more
Date: December 1987
Creator: Guerra Correa, Carlos Guillermo
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Tracing Darwin's Path in Cape Horn

Description: Charles Darwin spent the majority of his 1831-1836 voyage around the world in southern South America, and his early experiences in the Cape Horn region seem to have triggered his first ideas on human evolution. Darwin was not only a field naturalist, but also a scholar of the observations of the European explorers who preceded him. This book illuminates the foundations of Cape Horn’s natural history that oriented Darwin’s own explorations and his ideas on evolution, which acquire the highest re… more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: January 2019
Creator: Rozzi, Ricardo; Heidinger, Kurt & Massardo, Francisca
Item Type: Refine your search to only Book
Partner: UNT Press
open access

The Chilean Experience, 1970-1981

Description: The election of a coalition of socialists and communists in 1970 and three years later, the assumption of a military government have led to much controversy around the world. This study attempts to analyze the economic conditions prevailing in Chile from 1970 to 1981. It examines the gradual deterioration of the nation's economy under the Unidad Popular government and the recovery that has taken place with the Junta Militar de Gobierno. The implementation of a market system in 1973 has been eff… more
Date: August 1981
Creator: Mackenna, Leslie R.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Reconnaissance for Uranium in the Colimapu Formation, Chile

Description: Discussing Laboratory and field studies that show that the geologic history and environment of the Colimapu formation of central Chile differed considerably from those of the uranium-bearing Diamantiano formation of Argentina with which the Upper Colimapu has been correlated.
Date: October 1962
Creator: Bowes, William A.; Knowles, Paul H.; Brito, Aldo Moraga; H., Erik Klohn & C., Mario Serrano
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Salvador Allende: the Rise and Fall of a Chilean Marxist

Description: This study is concerned with describing and analyzing the factors that led to the election and subsequent defeat of Salvador Allende. The research information was selected from leading books, periodicals, government documents, archives, and newspapers. The thesis presents the political history of Allende's rise to power, the social structure that made his victory possible, the development of major programs that facilitated his ascension and that made his decision inevitable, and, finally, an an… more
Date: December 1975
Creator: Speaks, David L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Miniature Forests of Cape Horn: Ecotourism with a Hand Lens

Description: From book jacket: In the humid forests of Cape Horn, a single tree can host more than 100 species of little epiphyte plants. The floor of the forest and the rocks are also covered by numerous species of liverworts, mosses, and lichens. The decision to stop at a tree or rock and explore these “miniature forests” generates an authentic ecotourism experience. In a small area we can spend several minutes or hours with a magnifying glass or camera discovering the colors, shapes, and textures of the … more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: April 15, 2012
Creator: Goffinet, Bernard
Item Type: Refine your search to only Book
Partner: UNT Press
open access

Biodiversity and Genetic Structure of Benthic Macroinvertebrates Along an Altitudinal Gradient: A Comparison of the Windhond and Róbalo River Communities on Navarino Island, Chile

Description: Altitudinal gradients in Sub-Antarctic freshwater systems present unique opportunities to study the effect of distinct environmental gradients on benthic macroinvertebrate community composition and dispersal. This study investigates patterns in biodiversity, dispersal and population genetic structure of benthic macroinvertebrate fauna across an altitudinal gradient between two watersheds on Navarino Island in southern Chile. Patterns in diversity, density, evenness and functional feeding grou… more
Date: May 2016
Creator: Pulliam, Lauren
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Niche Expansion of an Invasive Predator (Neovison vison), Prey Response, and Facilitative Interactions with Other Invasive Mammals at the Southern End of the Americas: Conservation Challenges and Potential Solutions

Description: The Cape Horn Biosphere Reserve is located at the southern tip of South America. This large archipelago is considered one of the last pristine areas left on the world. Despite it being an unpopulated area with most of the native forest cover intact, it has not been exempt from biological invasions, one of the major drivers of biodiversity loss. Three species that naturally interact in their native range in North America – American beavers (Castor canadensis), muskrats (Ondatra zibethicus), and … more
Date: December 2017
Creator: Crego, Ramiro Daniel
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Potential Niche Expansion of the American Mink Invading a Remote Island Free of Nativepredatory Mammals

Description: This article evaluates whether the lack of potential predators and competitors, together with a more diurnal and terrestrial prey, have resulted in the mink expanding its spatial and temporal niche on Navarino Island as compared to that in its native habitats,
Date: April 4, 2018
Creator: Crego, Ramiro D.; Jiménez, Jaime E. & Rozzi, Ricardo, 1960-
Item Type: Refine your search to only Article
Partner: UNT College of Liberal Arts & Social Sciences
open access

Modeling State Repression in Argentina and Chile: A Time Series Analysis

Description: This study is an attempt to contribute to the emerging theoretical literature on state repression. A time-series model was developed to test the hypothesis that state violence in Argentina and Chile is largely a function of four internal political factors and their interactions: 1) the inertial influence of past restrictive policies on the formulation of current policies, 2) the annual incidence of political protest demonstrations, 3) the perceived effectiveness of repressive measures on unrest… more
Date: December 1993
Creator: King, John Christopher
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Reconnaissance for Uranium in the Chanaral-Taltal area, Provinces of Antofagasta and Atacama, Chile

Description: Abstract: In the Chañaral-Taltal area of northern Chile irregular replacement type iron deposits are especially well developed along a somewhat radioactive lithologic belt in andesite volcanic rocks and Cretaceous dioretic intrusions to the east of the Atacama fault, a prominent shear zone.
Date: December 1961
Creator: Bowes, William A.; Knowles, Paul H.; Moraga B., Aldo & C., Mario Serrano
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Post-Fledging Habitat Selection by the Slender-Billed Parakeet (Enicognathus Leptorhynchus) in a Fragmented Agricultural Landscape of Southern Chile

Description: This article contains an examination of habitat selection by radio-tracked juvenile Slender-billed Parakeets (Enicognathus leptorhynchus) at multiple spatial scales in a fragmented agricultural landscape of southern Chile.
Date: June 22, 2011
Creator: Carneiro, Ana Paula B.; Jiménez, Jaime E. & White, Thomas H., Jr.
Item Type: Refine your search to only Article
Partner: UNT College of Arts and Sciences
open access

Reconnaissance for Uranium in the San Pedro de Atacama and Laco areas, Province of Antofagasta, Chile

Description: Abstract: A reconnaissance for uranium in and a general geologic study of the San Pedro de Atacama and Laco areas of nothern Chile disclosed no significant radioactivity in the Laco area, but near San Pedro de Atacama slight anomalies were detected in limey silts of the San Pedro formation.
Date: December 1961
Creator: Knowles, Paul H.; Bowes, William A.; C., Mario Serrano & Moraga B., Aldo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nesting Ecology and Reproductive Correlates in the Desert-nesting Gray Gull Larus Modestus

Description: General objectives of my study were to describe the reproductive ecology of gray gulls in the large Lealtad colony, with emphasis on demographic parameters and physiological adaptations of eggs and chicks, which would complete some original objectives established in the early 1980's by Guerra and Fitzpatrick. Specifically, my study focused on describing, then comparing with other desert and non-desert nesting larids, interactive effects of ambient physical conditions and nest-site predation on … more
Date: May 1993
Creator: Aguilar Pulido, Roberto E. (Roberto Eric)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Reconnaissance for Uranium in the Copiapo Area, Province of Atacama, Chile

Description: Abstract: The area was examined for a period of about two weeks during October and November 1958 by geologists of the U.S. Atomic Energy Commission and the Instituto de Investigaciones Geológicas de Chile for the purpose of evaluating known uranium occurrences and determining the overall potential of the region for uranium.
Date: June 1962
Creator: Bowes, William A.; Knowles, Paul H.; C., Mario Serrano & S., Rudolfo Grüenwald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Latin American-United States Fishing Rights Controversy: Dilemma for United States Foreign Policy (1969-1971)

Description: This report discusses the controversy over fishing rights between the United States and three South American nations (Chile, Peru, and Ecuador) which culminated in the seizure of U.S. tuna fishing vessels by Peru and Ecuador in waters the U.S. considered outside their territorial jurisdiction. The main events of the controversy, diplomatic actions taken by the nations involved, and policy options are discussed.
Date: April 15, 1971
Creator: Hagen, Virginia M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reconnaissance for Uranium in the Antofagasta Area, Province of Antofagasta, Chile

Description: Abstract: The Antofagasta area, in the Province of Antofagasta, Chile, was investigated in September and August 1958 by two field parties of the U.S. Atomic Energy Commission and the Instituto de Investigaciones Geológicas de Chile, who were working under a cooperative agreement between the teo governments. the purpose of the investigation was to examine the area for the possible occurrence of commercial deposits of uranium.
Date: April 1961
Creator: Knowles, Paul H.; Bowes, William A.; C., Mario Serrano & S., Rudolfo Grüenwald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

1985 Oil Production of 21 Oil Producing Non-OPEC Countries

Description: This report assesses the possibility of increased oil production from 21 less developed non-OPEC countries (excluding the Middle East and Mexico) by 1985. The forecast is compared with those prepared by the World Bank, the International Energy Agency, and others. The 21 Latin American, African, and Far East (including Asia) countries produce 2.5 million barrels of oil per day (BD) or 4.2% of world production, and they have 21 billion barrels of proved reserves, or 3.2% of the world total. In re… more
Date: March 1, 1979
Creator: Warner, Arthur J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Diferencias morfométricas de dos especies del género Eatoniella en Isla Navarino, Reserva de Biosfera Cabo de Hornos, Chile

Description: This article describes the external morphometrics of shell and radula morphology as performed in two species of micromollusks of the genus Eatoniella in Navarino Island, Chile.
Date: December 29, 2016
Creator: Rosenfeld, Sebastián; Aldea, Cristian; Ojeda, Jaime; Mansilla, Andrés O. & Rozzi, Ricardo, 1960-
Item Type: Refine your search to only Article
Partner: UNT College of Arts and Sciences
open access

Reconnaissance for Uranium in the Iquique Area, Province of Tarapaca, Chile

Description: Introduction: This exploratory work was undertaken as a preliminary evaluation of the area's uranium potential, and was limited to reconnaissance for favorable geologic indications of uranium, which included visits to selected localities and mining districts.
Date: October 1958
Creator: Bowes, William A.; Knowles, Paul H.; C., Mario Serrano & H., Erik Klohn
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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