Results 11 to 20 of about 180 (114)

Caracterización de suelos bajo bosques de Nothofagus betuloides (Mirb) Blume, en Tierra del Fuego, Chile Characterization of soils of Nothofagus betuloides (Mirb) Blume forests, in Tierra del Fuego, Chile [PDF]

Revista Chilena de Historia Natural, 2002
En tres sectores de la parte occidental de Tierra del Fuego (54º45'-54º15' S, 68º40'-70º10' O) se caracterizó morfológica, física y químicamente los suelos bajo bosques de coigüe de Magallanes (Nothofagus betuloides (Mirb) Blume) y sus especies asociadas
VÍCTOR GERDING, OSCAR THIERS
doaj   +5 more sources

Biocultural Calendars Across Four Ethnolinguistic Communities in Southwestern South America. [PDF]

Geohealth, 2023
Abstract Since the mid‐20th century, the so‐called Great Acceleration (sensu Steffen et al., 2007, https://doi.org/10.1579/0044-7447(2007)36[614:TAAHNO]2.0.CO;2) has amplified processes of ecosystem degradation, extinction of biological species, displacement of local peoples, losses of languages, and cultural diversity.
Rozzi R, Rozzi R, Álvarez R, Castro V, Núñez D, Ojeda J, Tauro A, Massardo F.   +7 more
europepmc   +2 more sources

Complex History of Organellar Introgression in <i>Nothofagus</i> Trees: Chloroplast and Mitochondrial Capture Facilitated by Natural Selection. [PDF]

Ecol Evol
Field photograph of an ancient Nothofagus tree covered with epiphytic lichens in the Patagonian temperate rainforest. This genus serves as a key model for investigating organellar introgression and evolutionary genomics in South America. ABSTRACT Hybridization is widespread across diverse groups of organisms, and in some cases, organellar genomes of ...
Narváez G, Guillemin ML, Sepúlveda-Espinoza F, Noll D, Gutiérrez RA, Arana V, Bellora N, Cubillos FA, Vianna JA.   +8 more
europepmc   +2 more sources

Survival rates in the world's southernmost forest bird community. [PDF]

Ecol Evol, 2023
In this article, we describe the temporal dynamics in survival probabilities for the world's southernmost forest bird community and their relationship to climatic variables. We develop a multispecies hierarchical survival model using Bayesian inference to jointly explore age‐dependent survival probabilities at the community and species levels in a ...
Sandvig EM, Quilodrán CS, Altamirano TA, Aguirre F, Barroso O, Rivero de Aguilar J, Schaub M, Kéry M, Vásquez RA, Rozzi R.   +9 more
europepmc   +2 more sources

The Southernmost Known Population of the Monito Del Monte, <i>Dromiciops gliroides</i>. [PDF]

Ecol Evol
A range extension for a relict south American marsupial. ABSTRACT The monito del monte (genus Dromiciops) is a small arboreal marsupial endemic to the temperate rainforests of southern South America, and the sole extant representative of the order Microbiotheria. This lineage, considered a sister group of Australian marsupials, is of great evolutionary,
Nespolo RF, Herrera P, Camus I, Bravo JP, González AD, Toledo C, Vera D, Fontúrbel FE, Quintero-Galvis JF.   +8 more
europepmc   +2 more sources

Diversity-Elevation Relationships of Vascular Plants in Austral Temperate Ecosystems Are Strata Dependent. [PDF]

Ecol Evol
We investigated diversity patterns of vascular plants of overstorey and understorey vegetation separately per stratum and the influence of anthropogenic disturbances along two elevational transects with contrasting slope aspects in a temperate rainforest and alpine scrub in southern Chile.
Michelt T, Craven D, Peréz-Tello V, Irl SDH.   +3 more
europepmc   +2 more sources

Nectar Robbery by Native and Invasive Bumblebees Reduces Floral Rewards but Not Seed Production in <i>Desfontainia fulgens</i>. [PDF]

Ecol Evol
We evaluated nectar robbery by native and invasive bumblebees in the hummingbird‐pollinated shrub Desfontainia fulgens in southern Chile. Nectar robbery strongly reduced nectar standing crop and altered floral visitation patterns, but these proximate effects did not translate into reduced seed production under natural pollination conditions.
Valdivia CE, Orellana JI.
europepmc   +2 more sources

Feather Microbiota Landscapes: Biogeography and Phenology Shape Feather Microbiota Traits in a Migratory Seabird in a Subantarctic Ecosystem. [PDF]

Mol Ecol
ABSTRACT It is known that phenological changes (i.e., behavioural and sometimes morphological and physiological traits that repeat annually) influence the wildlife gut microbiota. However, it remains largely unknown to what extent geographic variation could modulate the effect that phenology has on wildlife microbiota.
Ochoa-Sánchez M, Acuña-Gómez EP, Moraga CA, Acevedo J, Valenzuela P, Eguiarte LE, Souza V.   +6 more
europepmc   +2 more sources

Evidence of endozoochory in upland geese Chloephaga picta and white-bellied seedsnipes Attagis malouinus in sub-Antarctic Chile. [PDF]

Ecol Evol, 2021
Birds are known to act as potential vectors for the exogenous dispersal of bryophyte diaspores. Given the totipotency of vegetative tissue of many bryophytes, birds could also contribute to endozoochorous bryophyte dispersal. We evaluated the role of endozoochory in two herbivorous and sympatric bird species in sub‐Antarctic Chile and hypothesized that
Lázaro XA, Mackenzie R, Jiménez JE.
europepmc   +2 more sources

UAV LiDAR in coastal environments: Archaeological case studies from Tierra del Fuego, Argentina, and Vega, Norway

Archaeological Prospection, Volume 30, Issue 4, Page 533-557, October/December 2023., 2023
Abstract LiDAR has become fairly integrated into archaeological practice at a global scale. This has gradually evolved to include UAV LiDAR. Nevertheless, considerable biases remain, including with regard to geographical regions, chronological periods, feature types and environments.
Ole Risbøl, Jo Sindre P. Eidshaug, Hein B. Bjerck, Magnar M. Gran, Kristoffer R. Rantala, Angélica M. Tivoli, Atilio Francisco J. Zangrando   +6 more
wiley   +1 more source