198 research outputs found
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Cape Horn: A Biogeographic Melting Pot at the Southern End of the Americas
This article proposes to distinguish three discoveries of Cape Horn
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The Reciprocal Links between Evolutionary-Ecological Sciences and Environmental Ethics
This article discusses the reciprocal links between evolutionary-ecological sciences and environmental ethics
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Notas Y Comentarios Bibliográficos
This article offers comment by the author on the Patagonian Archipelago as the Final Frontier, as written about in a book by Matthew B. Martinic titled, 'Patagonia Archipelago. The Final Frontier
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Transformations of Darwin’S Thought in Cape Horn: A Legacy for Science and Environmental Ethics
This article examines how in the course of his life Darwin transformed his initial judgments about the Fuegian people, and how this change of judgment is associated with the maturation of his concepts to forget the theory of human evolution
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Biocultural Ethics: Recovering the Vital Links between the Inhabitants, Their Habits, and Habitats
Article discussing research on biocultural ethics as a way to overcome biocultural homogenization
Habitats – Habits – Inhabitants
1 Introduction We prefer to refer to sustainable cultures rather than to a singular culture of sustainability, in order to make explicit the plurality of languages, ecological worldviews and practices that unfold in contrasting ecoregions. The shift helps to acknowledge the existence of diverse sustainable communities around the world, and highlights the need to integrate both biological and cultural diversity into the concept of a global, still heterogeneous mosaic of forms of ecological kno..
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First decade of research and education in the Cape Horn Biosphere Reserve: the biocultural approach of the Omora Ethnobotanical Park
This article discusses the historical context motivating the creation of the future Cape Horn Sub-Antarctic Center in 2017
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The road to biocultural ethics
Article discussing biocultural ethics. As a child, Ricardo Rozzi visited indigenous communities in the high Andes with his grandfather and was enchanted by their close relationship with the natural world. Later, he and his wife would return to the region to explore the traditional ecological knowledge of the world's southernmost indigenous people
UNEXPECTED LACK OF EFFECT OF THE INVASIVE AMERICAN MINK ON NESTING SURVIVAL OF FOREST BIRDS
Nest predation by invasive mammalian predators can cause major impacts on native bird populations. The American mink (Neovison vison) was recently introduced on Navarino Island in southern Chile. The mink established as a new terrestrial mesopredator on the island with documented impacts on waterfowl breeding success. However, little is known about mink effects on forest bird’s reproduction. Here, we investigated nest-predation rate by native predators and the invasive mink on open-cup nesting forest birds by using artificial and natural nests. In six different plots, we deployed a grid (7 x 2) of 14 artificial nests spaced by 50 m and at random heights from the ground. We used camera traps in each nest to identify predators. At each plot, we estimated predator relative abundance using camera traps, Sherman traps, and bird point counts. We estimated nest survival probability as a function of nest age, concealment, distance to the river, and nest height. Additionally, we monitored 43 natural nests of five open-cup nesting bird species. Contrary to expected, mink was not a main predator of nests, depredating only one natural nest. The native raptor Chimango Caracara (Milvago chimango) was the main nest predator, preying on 39.8% artificial nests and 27.0% natural nests. We also found evidence that Chimango Caracara learned to associate the artificial nests with the egg reward. We argue that the lower abundance of mink in the forest and a mismatch between mink peak activity patterns and bird breeding phenology can result in low depredation. Mink impacts, however, may be more pervasive in summer months and on fledglings when mink activity peaks, and more research should be conducted to assess these questions. Our results are valuable to better understand mink impacts on biodiversity and to prioritize conservation actions on species more severely affected
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