Juan C. Torres-Mura

• Pontifical Catholic University of Chile

A major goal of evolutionary ecology is to understand the interaction between ecological differences and the functional morphology of organisms. Studies of this type are common among flying birds but less so in penguins. Penguins (Spheniscidae) are the most derived extant underwater flying birds using their wings for swimming and beak when foraging...

El nombre de la especie de paseriforme Aphrastura subantarctica, propuesto por Rozzi et al. (2022), no está disponible, dado que la publicación donde el mismo fue propuesto no cumplió con todos los requisitos del Código Internacional de Nomenclatura Zoológica. En esta nota establecemos la disponibilidad del nombre de la especie Aphrastura subantarc...

We describe a new taxon of terrestrial bird of the genus Aphrastura (rayaditos) inhabiting the Diego Ramírez Archipelago, the southernmost point of the American continent. This archipelago is geographically isolated and lacks terrestrial mammalian predators as well as woody plants, providing a contrasted habitat to the forests inhabited by the othe...

Resumen · El Loro Tricahue (Cyanoliseus patagonus bloxami) es una subespecie endémica de Chile amenazada de extinción, siendo la caza, la captura de pollos para su comercio como mascotas y la pérdida de hábitat sus principales amenazas. Abundante y ampliamente distribuida en el pasado, su población está fragmentada y en 1985 no superaba los 3300 ej...

Abstract · The Burrowing Parrot (Cyanoliseus patagonus bloxami, Aves: Psittaciformes) colony from Alto Cachapoal, Chile: variations in population size between 1985 and 2015 The endangered endemic subspecies of the Burrowing Parrot from Chile (Cyanoliseus patagonus bloxami) is threatened by hunting, pet trade, and loss of its habitat. Abundant and w...

Information on the biology and food habits of Scelorchilus rubecula is wanting. The diets of 41 individuals of this terrestrial bird species captured in three zones of the temperate rain forest region of southem Chile (38°-42°S) were investigated analyzing their stomach contents. We recorded the diversity and abundance of invertebrates and identifi...

RESUMEN.-El Piquero Peruano (Sula variegata) es un ave marina considerada amenazada en Chile. Nidifica en los acantilados de la Quirilluca, única área de reproducción continental en la zona central del país. Se estudió esta población para establecer la abundancia y la distribución espacial de la colonia, determinar el período de actividad reproduct...

Wing size and shape, expressed as wing loading and aspect ratio respectively, together with bill morphology are parameters that can reveal differences related to the foraging ecology of seabirds. Six species of booby (Sulidae) that inhabit the Pacific are the focus of this study: four mainly pelagic species, Masked Booby Sula dactylatra, Nazca Boob...

The Peruvian Booby (Sula variegata) is a seabird considered threatened in Chile. This species nest in the Quirilluca cliffs, which is the only continental breeding area in central Chile. We studied this population in order to establish abundance and spatial distribution of the colony, to determine the breeding period and to identify current threats...

For closely related species, differences in morphology can provide insight into the evolutionary history of a taxonomic group, as well as mechanisms for ecological segregation. Storm-petrels are among the smallest seabirds, and their greatest taxonomic diversity occurs in the eastern Pacific Ocean. Some storm-petrels exhibit a unique foraging behav...

. 2008). De acuerdo a la clasifi cacion geografi ca de Borgel (1983), las unidades geomorfologicas representadas en este territorio corresponden a la Precordillera de Domeyko y la Precordillera del Rio Loa Superior (Fig. 1a); zona en que la vegetacion esta conformada por el Matorral Bajo Desertico Tropical Interior de

Turkey Vultures are one of the most widely distributed carrion feeders throughout the Americas. We analyzed their regurgitated pellets from two localities in the Atacama Desert of Chile. Natural foods included dogs, sea lions, and feathers present in 17% of the pellets. We also found that 78% of pellets from coastal sites and 83% of pellets from in...

We report a new locality for the rodent Chelemys megalonyx in Rinconada de Maipú (Santiago, metropolitan region, central Chile), located in the central valley of Chile, in the eastern slope of the Chilean coastal range. Although the collected specimens show morphological similarities with other members of Chelemys, some cranial and body measurement...

Herein we demonstrate that Liolaemus kolengh, a lizard species described formerly for Argentina, inhabits the Lago Jeinimeni National Reserve in Chilean territory. We compared the sample of lizards from the reserve with the original description given by Abdala and Lobo in 2006. RESUMEN Liolaemus kolengh, (Sauria, Liolaemidae) en la Reserva Nacional...

La familia Icteridae está representada en Chile por 12 especies, de las que cinco son residentes y siete son accidentales. En abril de 2013 en el Salar de Atacama, se observó un macho de loica argentina (Sturnella superciliaris) en un matorral de brea cachiyuyo (Tessaria absinthioides - Atriplex atacamensis). El único registro existente para Chile...

El Sistema de Evaluación de Impacto Ambiental (SEIA), es una herramienta elaborada para regular el desarrollo de proyectos de inversión manteniendo el cuidado del medio ambiente. Esta herramienta considera una variedad de medidas de mitigación, reparación o compensación, con el objetivo de disminuir los efectos adversos que puede provocar un proyec...

In book: ECOLOGÍA DE LOS VERTEBRADOS DE CHILE by Fabián Jaksic., Edition: Segunda Edición. Impresos Universitaria S.A, Chapter: Relaciones de Nicho entre aves de bosque Higrófilos templados:, Publisher: Ediciones Universidad Católica de Chile. Facultad de Ciencias Biológicas., Editors: Fabián Jaksic A., pp.108-109. ISBN: 956-14-14-0440-0

lnformation on the biology and food habits of Scelorchilus rubecula is wanting. The diets of 41 individuals of this terrestrial bird species captured in three zones of the temperate rain forest region of southem Chile (38°-42°S) were investigated analyzing their stomach contents. We recorded the diversity and abundance of invertebrates and identifi...

RESUMEN Se documenta la presencia de Liolaemus foxi en una localidad nueva, separada de la Terra typica, la nueva población exhibe un tamaño adulto menor que la población original. Además se agrega registro de presencia de L. audituvelatus para una localidad distante 280 kilómetros al sudoeste de la Terra typica. Igualmente se documenta la presenci...

lnformation on the biology and food habits of Scelorchilus rubecula is wanting. The diets of 41 individuals of this terrestrial bird species captured in three zones of the temperate rain forest region of southem Chile (38°-42°S) were investigated analyzing their stomach contents. We recorded the diversity and abundance of invertebrates and identifi...

La dieta del chucao (Scelorchi/us rubecula), un Passeriforme terrícola endémico del bosque templado húmedo de Sudamérica austral.

RESUMEN El esternón es una estructura de peculiar desarrollo en las aves y presenta una combinación de caracteres que puede variar de acuerdo al modo de vida de cada especie; este trabajo describe y analiza el esternón de 25 órdenes, 47 familias y 112 géneros de aves que habitan en Chile. A través de medidas y dibujos se muestran los caracteres úti...

Since 1985, the Chilean government with the participation and support of different specialists in plant and animal conservation, started the publication of checklists (i.e. red books) of plant (1985) and animal species (1987) with high to moderate risk of extinction due to human activities (i.e. threatened species). The seven categories of threats...

Since 1985, the Chilean government with the participation and support of different specialists in plant and animal conservation, started the publication of checklists (i.e. red books) of plant (1985) and animal species (1987) with high to moderate risk of extinction due to human activities (i.e. threatened species). The seven categories of threats...

Un ejemplar de chorlo picogrueso, Charadrius wilsonia, (Aves: Charadriiformes) fue observado en diciembre de 2008 en la costa norte de la región de Antofagasta, cerca de la desembocadura del río Loa, área declarada "sitio prioritario para conservación de biodiversidad". La especie se había observado previamente en Arica, aunque sin recolectar ejemp...

The Juan Fernandez Firecrown Sephanoides fernandensis is an endangered endemic hummingbird that inhabits the Juan Fernandez Islands, 667 km off the coast of Chile. Its population has decreased from several thousand in the early part of this century to approximately 250–400 individuals at present. The reasons for its decline include habitat degradat...

Existe consenso en que la diversidad biológica de nuestro planeta se encuentra globalmente en crisis, debido a su empobrecimiento y al hecho de que las futuras generaciones probablemente no tendrán la misma opción de gozar de los múltiples beneficios, servicios y recursos con que actualmente contamos. Por esta razón, un modelo de desarrollo sustent...

Pristine wilderness is a scarce global resource, but exotic species are so common that they constitute a principal component of worldwide ecological change. The relationship between these two topics, invasion and remoteness, was the impetus behind five years of fieldwork aimed at identifying the assemblage and range of exotic vertebrates in Cape Ho...

Chungungo, Tilgo, and Pájaros are small, uninhabited islands within 30 km of the coast of north central Chile. Based on surveys conducted in January 2002 and 2003, we observed 32 marine and terrestrial species of birds that nest, feed, and/or roost on these islands. Seven of these species are considered Endangered, Vulnerable, or Insufficiently Kno...

Three large zooarchaeological assemblages from contrasting environments in Aisen (XI Region, Chile) were analyzed using the same procedures. This is an interesting methodological excersize in itself, as it allows the recording of assemblages dominated by different species (ie. guanaco vs. huemul) and with different richness and diversity profiles....

Descubrimiento de una colonia de reproducción de la Golondrina de mar chica (Oceanites gracilis, Hydrobatidae) en Chile. Breeding colonies of oceanic birds can be somewhat elusive, especially those that nest in burrows, caves, or crevices, and those that return to their colonies under the cover of darkness. Because of their small size and pelagic h...

The Mediterranean ecosystem in the Metropolitan Region of Chile is among the most threat- ened in the country because of human impacts caused by the concentration of 5.5 million people in an area of only 15 800 km 2. We analyze species presence at three spatial scales: the entire region, Santiago city and its surroundings, and two suburban localiti...

Genetic variation and the allozymic relationships of five families comprising 23 species of hystricognath rodents were examined using electrophoretic data from 19 presumptive gene loci. Direct-count heterozygosity ranged from 0% to 13.6%, and polymorphism varied from 0% to 36.8%. Fixed allele differences were instrumental for the segregation of tax...

Santiago city (33 degrees South), lies on the western coast of South America. It harbors ten raptor species, which may be classified to some degree as urban or suburban raptors. Two are vultures, three are hawks, two are falcons, and three are owls. Nevertheless, only three or four species may be considered as true urban raptors that apparently thr...

The Juan Fernandez Islands constitute two distantly separated (182 km) major islands, of which Isla Robinson Crusoe is the closest (667 km) to the Chilean mainland, and a number of smaller surrounding islets. The endemic Juan Fernandez firecrown Sephanoides fernandensis once inhabited both major islands and numbered many thousands. Today it exists...

The little-known mammalian fauna of the Atacama Desert and adjacent Puna in northern Chile is analysed by means of live-trapping, and examination of fox scats and owl pellets. On the basis of physiognomy, climate, altitude and vegetation, four biomes were recognized: coastal lowland Lomas, mid-altitude Riparian and Oasis biomes, and highland Puna....

Tit-tyrants of the genus Anairetes presently consist of six species; five inhabit various regions along the Andean cordillera of South America and one is endemic to the Juan Fernandez Islands off the coast of Chile. Data from mtDNA ND2 and Cyt b sequences were used to construct a phylogeny for all Anairetes species as well as Uromyias agilis, a clo...

Relaciones de Nicho entre aves de bosque Higrófilos templados.

ISBN 956-14-0440-0. Segunda Edición. Edición Universidad Católica de Chile. Facultad de Ciencias Biológicas. impresión Universitaria. S.A.

Avifauna insular de bosques primarios templados de Chiloé, Chile.

Con el propósito de conocer la composición de especies, uso de hábitat y alimentación de la comunidad de aves en bosques primarios del archipiélago de Chiloé se realizaron censos en 13 islas ubicadas al sur (43° S; 74° W) de la Isla Grande de Chiloé. cuyos bosques son representativos del bosque primario dominado por Aexloxiconpunclatum (R. et P.) y...

Octomys mimax possesses a chromosomal complement of 2n = 56, FN = 108, with heterochromatin restricted to the pericentric regions in all chromosomes except one autosomal pair and the X chromosome. One chromosome also has heterochromatin in a secondary constriction. C-bands of Octodontomys gliroides reveal the clear presence of pericentric heterochr...

Morphological variation in the glans penis of the six genera and most species of octodontid rodents was studied and compared to members of the Abrocomidae and Ctenomyidae. Most specimens of Octodon degus, O. lunatus, O. bridgesi, Octodontomys gliroides, Aconaemys fuscus, and A. sagei presented two spikes on each side at the bottom of the intromiten...

We document the first record of Microcavia niata in the high Andes of northern Chile near the border of Bolivia. This species is restricted to bog habitats where it principally feeds on grasses and aquatic plants. Its basal metabolic rate was 0.689 ± 0.1 ml O2 g−1 h−1. Two colonies were studied, each possessing 15 and 17 individuals, and characteri...

This work mentioned in relation to seed dispersal of Myrtaceae specie Amomyrtus luma by the Chucao Tapaculo, in: Rural Industries Research and Development Corporation (RIRDC) is an Australian statutory corporation by the Australian Government.

Los ambientes acuáticos del Parque Nacional Laguna del Laja han sido destacados como importantes para las aves acuáticas e incluidos en el Inventario de Humedales de la Región Neotropical. Este trabajo entrega los primeros antecedentes sobre composición y abundancia de la avifauna acuática del Lago Laja. Este lago es el mayor embalse natural del pa...

lnformation on the biology and food habits of Scelorchilus rubecula is wanting. The diets of 41 individuals of this terrestrial bird species captured in three zones of the temperate rain forest region of southem Chile (38°-42°S) were investigated analyzing their stomach contents. We recorded the diversity and abundance of invertebrates and identifi...

lnformation on the biology and food habits of Scelorchilus rubecula is wanting. The diets of 41 individuals of this terrestrial bird species captured in three zones of the temperate rain forest region of southem Chile (38°-42°S) were investigated analyzing their stomach contents. We recorded the diversity and abundance of invertebrates and identifi...

Tympanoctomys barrerae, a desert specialist member of the family Octodontidae, until now thought to be conservative, and ancestral to South American hystricognath rodents, presents the highest diploid chromosome number (2n = 102) known in a mammal. Unexpectedly, its karyotype was found to be composed mainly of metacentric to sub-metacentric chromos...

Diet of the chucao (Scelorchilus rubecula), a terrestrial Passerine endemic to the temperate rain forest of austral South America RESUMEN l.a información respecto de la biología y hábitos alimentarios de Scelorchilus rubecula es escasa. En este estudio se investigaron las dietas de 41 individuos de esta especie capturados en tres zonas del bosque t...

Description des habitudes alimentaires de T. barrerae et comparaison avec celles d'autres especes comme Microcavia australis, Ctenomys mendocinus et Eligmodantra typus. Les regimes alimentaires de ces animaux sont compares a deux epoques de l'annee, avril et septembre

lnformation on the biology and food habits of Scelorchilus rubecula is wanting. The diets of 41 individuals of this terrestrial bird species captured in three zones of the temperate rain forest region of southem Chile (38°-42°S) were investigated analyzing their stomach contents. We recorded the diversity and abundance of invertebrates and identifi...

The family Octodontidae (Rodentia, Hystricognatha) is an old group of low diversity, currently found on both sides of the Andean mountains between 16°S and 41°S. Information on the geographic distribution of the octodontid genera is presented and discussed, and the systematic status of each species and subspecies is given. An explanation is also pr...

New records of Euneomys from central and southern Chile are given. Specific assignment of this material is difficult, owing to the lack of good diagnostic characters, small number of specimens, and spotty distribution. Absence of clear-cut differences between Euneomys locallities suggests that there is only a single species., E. chinchilloides. Sub...

Se determinó la diversidad biológica de mamíferos de la Región de O’Higgins a través de información recopilada en terreno, información bibliográfica publicada para los diferentes grupos, e información asociada a bases de datos personales e institucionales. Con la información obtenida a nivel regional, se proponen estados de conservación para esta f...