Relevant bibliographies by topics / Alejandro Selkirk

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Academic literature on the topic 'Alejandro Selkirk'

Author: Grafiati
Published: 5 June 2025
Last updated: 16 July 2025

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Journal articles on the topic "Alejandro Selkirk"

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HAHN, INGO, and HERMANN MATTES. "VOCALISATIONS OF THE MÁSAFUERA RAYADITOAPHRASTURA MASAFUERAEON ISLA ALEJANDRO SELKIRK, CHILE." Bioacoustics 11, no. 2 (2000): 149–58. http://dx.doi.org/10.1080/09524622.2000.9753456.

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Kim, Seon-Hee, JiYoung Yang, Myong-Suk Cho, Tod F. Stuessy, Daniel J. Crawford, and Seung-Chul Kim. "Chloroplast Genome Provides Insights into Molecular Evolution and Species Relationship of Fleabanes (Erigeron: Tribe Astereae, Asteraceae) in the Juan Fernández Islands, Chile." Plants 13, no. 5 (2024): 612. http://dx.doi.org/10.3390/plants13050612.

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Erigeron represents the third largest genus on the Juan Fernández Islands, with six endemic species, five of which occur exclusively on the younger Alejandro Selkirk Island with one species on both islands. While its continental sister species is unknown, Erigeron on the Juan Fernández Islands appears to be monophyletic and most likely evolved from South American progenitor species. We characterized the complete chloroplast genomes of five Erigeron species, including accessions of E. fernandezia and one each from Alejandro Selkirk and Robinson Crusoe Islands, with the purposes of elucidating molecular evolution and phylogenetic relationships. We found highly conserved chloroplast genomes in size, gene order and contents, and further identified several mutation hotspot regions. In addition, we found two positively selected chloroplast genes (ccsA and ndhF) among species in the islands. The complete plastome sequences confirmed the monophyly of Erigeron in the islands and corroborated previous phylogenetic relationships among species. New findings in the current study include (1) two major lineages, E. turricola–E. luteoviridis and E. fernandezia–E. ingae–E. rupicola, (2) the non-monophyly of E. fernandezia occurring on the two islands, and (3) the non-monophyly of the alpine species E. ingae complex.
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PENNECKAMP FURNIEL, DIEGO, and GLORIA ROJAS VILLEGAS. "A new species of Megalachne (Poaceae) endemic to Alejandro Selkirk Island, Juan Fernandez Archipelago, Chile." Phytotaxa 418, no. 3 (2019): 294–300. http://dx.doi.org/10.11646/phytotaxa.418.3.5.

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A new species of Megalachne (Poaceae) endemic to Alejandro Selkirk Island, Juan Fernandez Archipelago, Chile, is described and illustrated, based on morphological characters. This species is differentiated from others of the genus by its long lemma awn (5–8.5 cm) and by the number of flowers in the spikelet (2–4). The taxon has been reported previously for Juan Fernandez endemic flora, but without formal description.
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Greimler, Josef, Patricio López-Sepulveda, Karl Reiter, et al. "Vegetation of Alejandro Selkirk Island (Isla Masafuera), Juan Fernández Archipelago, Chile." Pacific Science 67, no. 2 (2013): 267–82. http://dx.doi.org/10.2984/67.2.9.

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Rojas, José Rodrigo, Patricio Torres, and Germán Pequeño. "Acanthocolpid Metacercariae in the Sea Bass from Alejandro Selkirk Island, Chile." Journal of Wildlife Diseases 35, no. 1 (1999): 90–93. http://dx.doi.org/10.7589/0090-3558-35.1.90.

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GOMES, LUCAS R. P., MÁRCIA S. COURI, and CLAUDIO J. B. DE CARVALHO. "Anthomyiidae, Fanniidae and Muscidae (Diptera) from the Juan Fernández Archipelago (Chile): 60 years after Willi Hennig’s contributions." Zootaxa 4402, no. 2 (2018): 373. http://dx.doi.org/10.11646/zootaxa.4402.2.9.

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Sixty years ago, Willi Hennig last catalogued the Anthomyiidae, Fanniidae and Muscidae fauna of the Juan Fernández Archipelago. This archipelago, composed of three main volcanic islands (Robinson Crusoe, Alejandro Selkirk and Santa Clara), has many endemic species. We describe Fannia hennigi sp. n. from the Robinson Crusoe Island, and record 11 species in 10 genera of Anthomyiidae, Fanniidae and Muscidae. A key to the identification of all species found in Juan Fernández Archipelago and a table with all species found in the Archipelago are presented, including four new records from Robinson Crusoe Island: Delia platura (Meigen, 1826); Fannia hennigi sp. n.; Lispoides insularis Hennig, 1957 and Schoenomyzina emdeni Hennig, 1955.
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Stehberg, Rubén. "Investigaciones preliminares de Arqueologia Histórica lobera en la Isla Alejandro Selkirk, Archipiélago de Juan Fernández (Chile)." Vestígios - Revista Latino-Americana de Arqueologia Histórica 5, no. 2 (2011): 141–56. http://dx.doi.org/10.31239/vtg.v5i2.10657.

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O artigo trata de uma visita de reconheciento às instalações arquitetônicas existentes na playa Lobería, da ilha Alejandro Selkirk, do arquipélago Juan Fernández, efetuada em 2005 como parte de uma expedição do Museu Nacional de História Natural (Chile). A partir de uma análise bibliográficas geral e da experiência arqueológica obtida nas ilhas Shetland do Sul, se postula que as extensas e variadas estruturas existentes formaram parte de um complexo habitacional industrial-agrícola-pecuário para a exploração do lobo marinho, e que por sua magnitude permitiu o estabelecimente de uma população semi-permanente de peles e subprodutos do óleo e gordura, destinados a mercados existentes no Hemisfério Norte, dentro da lógica do processo de expansão do sistema capitalista em finais do século XVIII e princípios do seguinte.
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Hahn, Ingo, Uwe Römer, Pablo Vergara, and Hartmut Walter. "Biogeography, diversity, and conservation of the birds of the Juan Fernández Islands, Chile." Vertebrate Zoology 59, no. 1 (2009): 103–14. http://dx.doi.org/10.3897/vz.59.e30961.

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The Avifauna fernandeziana is described and analysed according to species richness, habitat choice, and breeding status. Taxonomic composition and biogeographical origin are identifi ed. Finally the current conservation status of birds is analysed from a geographical point of view using WALTER’s eigenplace index. The avifauna is represented by only 55 recorded species, one third regular breeders and two thirds visitors. Most species records come from the island Robinson Crusoe (41), followed by Alejandro Selkirk (26) and small Santa Clara (8). Eleven species breed on Crusoe and seven on Selkirk, but they share no endemics. In total 14 bird orders, 29 families and 41 genera are present. Richest orders are Procellariiformes (18 species) followed by Passeriformes (7) and Charadriiformes (7). On average 1.3 species are found per genus, 2.0 genera per family, and 1.7 families per order. Most seabirds originate from Subantarctic/Temperate zones, most landbirds from the Neotropis (together 65 %). Using the eigenplace index, all endemics appear in the two highest scored conservation classes. The six endemic landbird taxa are highly threatened, especially Sephanoides fernandensis and Aphrastura masafuerae. For the low species richness diverse factors may be responsible: low observation intensity, low immigration rates by isolation, competition for limited resources, and predation without retreat areas. The findings support the theoretical suggestion that on islands closely related taxa tend to reduce each other and that one generalist tends to replace several specialists.
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Hahn, Ingo, Uwe Römer, PABLO Vergara, and HARTMUT Walter. "Biogeography, diversity, and conservation of the birds of the Juan Fernández Islands, Chile." Vertebrate Zoology 59 (May 15, 2009): 103–14. https://doi.org/10.3897/vz.59.e30961.

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The Avifauna fernandeziana is described and analysed according to species richness, habitat choice, and breeding status. Taxonomic composition and biogeographical origin are identifi ed. Finally the current conservation status of birds is analysed from a geographical point of view using WALTER's eigenplace index. The avifauna is represented by only 55 recorded species, one third regular breeders and two thirds visitors. Most species records come from the island Robinson Crusoe (41), followed by Alejandro Selkirk (26) and small Santa Clara (8). Eleven species breed on Crusoe and seven on Selkirk, but they share no endemics. In total 14 bird orders, 29 families and 41 genera are present. Richest orders are Procellariiformes (18 species) followed by Passeriformes (7) and Charadriiformes (7). On average 1.3 species are found per genus, 2.0 genera per family, and 1.7 families per order. Most seabirds originate from Subantarctic/Temperate zones, most landbirds from the Neotropis (together 65 %). Using the eigenplace index, all endemics appear in the two highest scored conservation classes. The six endemic landbird taxa are highly threatened, especially Sephanoides fernandensis and Aphrastura masafuerae. For the low species richness diverse factors may be responsible: low observation intensity, low immigration rates by isolation, competition for limited resources, and predation without retreat areas. The findings support the theoretical suggestion that on islands closely related taxa tend to reduce each other and that one generalist tends to replace several specialists.
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10

Sepulveda, Maria Soledad. "Hookworms (Uncinaria sp.) in Juan Fernandez Fur Seal Pups (Arctocephalus philippii) from Alejandro Selkirk Island, Chile." Journal of Parasitology 84, no. 6 (1998): 1305. http://dx.doi.org/10.2307/3284700.

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Dissertations / Theses on the topic "Alejandro Selkirk"

1

Cerda, Ignacio. "Diagnóstico ambiental de la isla Marinero Alejandro Selkirk, parque nacional archipíélago Juan Fernández V región de Valparaíso." Tesis, Universidad de Chile, 2005. http://repositorio.uchile.cl/handle/2250/100648.

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El presente estudio aborda la problemática ambiental mediante el establecimiento de una zonificación ecológica del territorio, definiendo en ésta el manejo de los recursos protegidos y los diferentes usos permitidos, estableciendo algunos requerimientos básicos para alcanzar este objetivo y aunando los conceptos de conservación y desarrollo de acuerdo a la capacidad de los recursos presentes.
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2

Méndez, Mardones Rubén Félix. "Propuesta estratégica para implementar micro-redes basadas en energías renovables no convencionales en comunidades con aislamiento extremo : caso de estudio, Isla Alejandro Selkirk, Archipiélago Juan Fernández." Tesis, Universidad de Chile, 2017. http://repositorio.uchile.cl/handle/2250/152825.

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Memoria para optar al Título Profesional de Ingeniero en Recursos Naturales Renovables<br>Actualmente Chile presenta comunidades que se encuentran en condiciones de aislamiento extremo, las que cubren sus requerimientos eléctricos con precarios sistemas de autoabastecimiento basados en el uso de combustibles fósiles, presentando elevados costos económicos y generando procesos de contaminación ambiental. Este es el caso de una comunidad conformada por aproximadamente 80 personas, ubicada en la isla Alejandro Selkirk perteneciente al Archipiélago Juan Fernández. Selkirk es considerada uno de los territorios más aislados de Latinoamérica y más prioritarios para la conservación de la biodiversidad a nivel mundial. En este contexto, el presente estudio tuvo por objetivo elaborar una propuesta estratégica para la implementación de una micro-red eléctrica basada en energías renovables no convencionales (ERNC). Para estos efectos, se planteó una metodología de cuatro etapas, 1) evaluar el potencial de energías renovables, 2) determinar las necesidades eléctricas del poblado, 3) realizar un análisis social e institucional y 4) establecer estrategias para la implementación de un proyecto ajustado a la realidad local. En términos generales, los resultados apuntan a que el territorio presenta viabilidad para aprovechar la energía solar disponible, descartando el resto de las fuentes renovables. Por otra parte, la demanda eléctrica del poblado asciende a 2,43 [MWh mes-1] considerando distintas categorías de consumo, entre ellas recreación (30%), refrigeración (24%), higiene (23%), iluminación (13%), cocina (1%), comunicación (1%) y otros consumos (8%). Del análisis social e institucional, se concluye que la comunidad posee una sólida estructura organizacional y una elevada cohesión social. Los entrevistados demostraron tener una gran valoración ambiental, manifestando la necesidad de remplazar el sistema de generación eléctrica actual por uno basado en ERNC, iniciativa que cuenta con el apoyo institucional del territorio. Considerando lo anterior, se propusieron estrategias de corto, mediano y largo plazo orientadas a la articulación social, búsqueda de financiamiento, alianzas estratégicas, seguridad y sostenibilidad del proyecto, además de recomendaciones para replicar la metodología en otros territorios con aislamiento extremo. Luego de someter las propuestas a un proceso de validación social considerando actores de nivel local y regional, se concluy que las estrategias son pertinentes y factibles de implementar.
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