64 Works

Data from: Microbial life in a fjord: metagenomic analysis of a microbial mat in Chilean Patagonia

Juan A. Ugalde, Maria J. Gallardo, Camila Belmar, Práxedes Muñoz, Nathaly Ruiz-Tagle, Sandra Ferrada-Fuentes, Carola Espinoza, Eric E. Allen & Victor A. Gallardo
The current study describes the taxonomic and functional composition of metagenomic sequences obtained from a filamentous microbial mat isolated from the Comau fjord, located in the northernmost part of the Chilean Patagonia. The taxonomic composition of the microbial community showed a high proportion of members of the Gammaproteobacteria, including a high number of sequences that were recruited to the genomes of Moritella marina MP-1 and Colwellia psycherythraea 34H, suggesting the presence of populations related to...

Data from: Lizards on ice: evidence for multiple refugia in Liolaemus pictus (Liolaemidae) during the Last Glacial Maximum in the southern Andean beech forests

Iván Vera-Escalona, Guillermo D’Elía, Nicolás Gouin, Frank M. Fontanella, Carla Muñoz-Mendoza, , Pedro F. Victoriano, Guillermo D'Elía & Jack W. Sites
Historical climate changes and orogenesis are two important factors that have shaped intraspecific biodiversity patterns worldwide. Although southern South America has experienced such complex events, there is a paucity of studies examining the effects on intraspecific diversification in this part of the world. Liolaemus pictus is the southernmost distributed lizard in the Chilean temperate forest, whose genetic structure has likely been influenced by Pleistocene glaciations. We conducted a phylogeographic study of L. pictus in Chile...

Data from: Biotic and abiotic variables influencing plant litter breakdown in streams: a global study

Luz Boyero, Richard Pearson, Cang Hui, Mark Gessner, Javier Perez, Markos Alexandrou, Manuel Graça, Bradley Cardinale, Ricardo Albariño, M. Arunachalam, Leon Barmuta, Andrew Boulton, Andreas Bruder, Marcos Callisto, Eric Chauvet, Russell Death, David Dudgeon, Andrea Encalada, Veronica Ferreira, Ricardo Figueroa, Alex Flecker, , Julie Helson, Tomoya Iwata, Tajang Jinggut … & Catherine Yule
Plant litter breakdown is a key ecological process in terrestrial and freshwater ecosystems. Streams and rivers, in particular, have high rates of carbon dioxide evasion and they contribute substantially to global carbon fluxes. However, there is little information available on the relative roles of different drivers of plant litter breakdown in fresh waters, particularly at large scales. We present a global-scale study of litter breakdown in streams to compare the roles of biotic, climatic and...

Data from: The oceanic concordance of phylogeography and biogeography: a case study in Notochthamalus

Christine Ewers-Saucedo, James M. Pringle, Hector H. Sepúlveda, James E. Byers, Sergio A. Navarrete & John P. Wares
Dispersal and adaptation are the two primary mechanisms that set the range distributions for a population or species. As such, understanding how these mechanisms interact in marine organisms in particular – with capacity for long-range dispersal and a poor understanding of what selective environments species are responding to – can provide useful insights for the exploration of biogeographic patterns. Previously, the barnacle Notochthamalus scabrosus has revealed two evolutionarily distinct lineages with a joint distribution that...

Data from: Mediterranean and temperate treelines are controlled by different environmental drivers

Frida I. Piper, Benjamín Viñegla, Juan Carlos Linares, Jesús Julio Camarero, Lohengrin A. Cavieres & Alex Fajardo
The growth limitation hypothesis (GLH) is the most accepted explanation for treeline formation, but it has been scarcely examined in Mediterranean treelines, which are located at lower elevations than temperate treelines. The GLH states that low temperature is the ultimate environmental driver for treeline formation, constraining C-sinks (i.e. tissue formation) more than C-sources. The GLH predicts similar or increasing (but not decreasing) non-structural carbohydrate (NSC) concentrations with elevation throughout the course of the growing season....

Remote Sensing Applications for Abating Aircraft–Bird Strike Risks in Southeast Brazil

Natalia S. Novoselova, Alexey A. Novoselov, Arthur Macarrão, Guilherme Gallo-Ortiz & Wesley Rodrigues Silva
The rising number of aircraft collisions with birds requires the development of appropriate mitigation measures to control their populations in the vicinity of airports. The black vulture (Coragyps atratus; vultures) is considered one of the most dangerous species for aviation in Brazil. To better understand the spatial distribution patterns of flying vultures and the risks they may pose to aviation, we studied natural and anthropogenic superficial factors and then numerically estimated and mapped the risk...

Data from: A down-shifting Eu 3+ -doped Y 2 WO 6 /TiO 2 photoelectrode for improved light harvesting in dye-sensitized solar cells

Jaime Llanos, Ivan Brito, Dario Espinoza, Ramkumar Sekar & Paulraj Manidurai
Y1.86Eu0.14WO6 phosphors were prepared using a solid-state reaction method. Their optical properties were analysed, and they was mixed with TiO2, sintered, and used as a photoelectrode (PE) in dye-sensitized solar cells (DSSCs). The as-prepared photoelectrode was characterized by photoluminescence spectroscopy, diffuse reflectance, electrochemical impedance spectroscopy (EIS) and X-ray diffraction. The photoelectric conversion efficiency of the DSSC with TiO2:Y1.86Eu0.14WO6 (100:2.5) was 25.8% higher than that of a DSCC using pure TiO2 as PE. This high efficiency...

Multiple drainage reversal episodes and glacial refugia in a Patagonian fish revealed by sequenced microsatellites

Daniel Ruzzante, Annie Simons, Gregory McCracken, Evelyn Habit & Sandra Walde
The rise of the southern Andes and the Quaternary glacial cycles influenced the landscape of Patagonia, affecting the phylogeographic and biogeographic patterns of its flora and fauna. Here we examine the phylogeography of the freshwater fish, Percichthys trucha, using 53 sequenced microsatellite DNA markers. Fish (N=835) were collected from 16 river systems (46 locations) spanning the species range on both sides of the Andes. Eleven watersheds drain to the Pacific, five of which are trans-Andean...

Multi-taxa inventory of naturalized species in Chile

Nicol Fuentes, Alicia Marticorena, Alfredo Saldaña, Viviane Jerez, Juan Carlos Ortiz, Pedro Victoriano, Juan Larraín, Cristobal Villaseñor-Parada, Götz Palfner, Paulina Sánchez, Aníbal Pauchard & Rodrigo A. Moreno
Here we present a multi-taxa inventory of naturalized alien species recorded on continental Chile and adjacent marine habitats, including eight taxonomic groups. We identified 1,122 species. These comprise 790 vascular plants (terrestrial and aquatic); 31 nonvascular plants [Bryophyta (mosses), Marchantiophyta (liverworts) and Anthocerotophyta (hornworts)]; 18 marine and freshwater macro and micro algae; 71 fungi; 39 terrestrial vertebrates (amphibians, reptiles, mammals and birds); 108 insects; 37 marine and freshwater invertebrates and vertebrates (6 polychaetes, 3 mollusks...

Data from: Putting vascular epiphytes on the traits map

Peter Hietz, Katrin Wagner, Flavio Nunes Ramos, Juliano Sarmento Cabral, Gerhard Zotz, Claudia Agudelo, Ana Maria Benavides, Manuel Cach Pérez, Catherine Cardelús, Nahelli Chilpa Galván, Lucas Costa, Rodolfo De Paula Oliveiras, Helena Einzmann, Rafael Farias, Valeria Guzmán Jacob, Michael Kessler, Catherine Kirby, Holger Kreft, Thorsten Krömer, Jamie Males, Samuel Monsalve Correa, Maria Moreno, Gunnar Petter, Casandra Reyes, Alfredo Saldaña … & Carrie Woods
Epiphyte trait data for the paper Hietz et al. 2021 Putting vascular epiphytes on the traits map. Journal of Ecology Plant functional traits impact the fitness and environmental niche of plants. Major plant functional types have been characterized by their trait spectrum, and the environmental and phylogenetic imprints on traits have advanced several ecological fields. Yet very few trait data on epiphytes, which represent almost 10% of vascular plants, are available. We collated >80,000 mostly...

Additional file 2 of Spatial dissimilarity of zooplankton and hydrodynamic conditions in a Patagonian channel used intensely by aquaculture: the influence of a geomorphological constriction

Eduardo Hernández-Miranda, Ignacio Betancourt, Marcus Sobarzo, Odette Vergara, Claudio Iturra & Renato A. Quiñones
Additional file 2. Average values of environmental variables in the Caucahué Channel, obtained for northern and southern sections using a YSI multiprobe sensor. (a) Temperature, (b) Salinity, (c) Dissolved oxygen, (d) pH, (e) Redox potential. Bars represent standard deviation. NS: Northern surface layer, SS: Southern surface layer, NB: Northern deeper layer, and SB: Southern deeper layer.

Additional file 4 of Spatial dissimilarity of zooplankton and hydrodynamic conditions in a Patagonian channel used intensely by aquaculture: the influence of a geomorphological constriction

Eduardo Hernández-Miranda, Ignacio Betancourt, Marcus Sobarzo, Odette Vergara, Claudio Iturra & Renato A. Quiñones
Additional file 4. Average values of chlorophyll-a (a, c) and phaeopigments (b, d) in the Caucahué Channel obtained for northern and southern sections. (a, b) correspond to average values of the integrated water column. (c, d) correspond to average values of the water column according to each depth stratum sampled. Bars represent standard deviation.

Spatial dissimilarity of zooplankton and hydrodynamic conditions in a Patagonian channel used intensely by aquaculture: the influence of a geomorphological constriction

Eduardo Hernández-Miranda, Ignacio Betancourt, Marcus Sobarzo, Odette Vergara, Claudio Iturra & Renato A. Quiñones
Abstract Background Marine aquaculture is a very important economic and food production activity in Patagonian channels. The biophysical mechanisms through which farms interact with surrounding areas is poorly understood. A better understanding of the relationship between zooplankton distribution, hydrodynamics and aquaculture farms in Patagonian channels can contribute to the environmental sustainability of this activity. Methods The study was conducted in winter in the Caucahué Channel (Chiloé Island, southern Chile), which is composed of two asymmetric...

No home-field advantage in litter decomposition from the desert to temperate forest

Liesbeth Van Den Brink, Rafaella Canessa, Harald Neidhardt, Timo Knuever, Rodrigo Rios, Alfredo Saldana, Lohengrin Cavieres, Yvonne Oelmann, Maaike Bader & Katja Tielboerger
1. Litter decomposition rates are determined by the interplay of climate, decomposer organisms and litter quality. It has been suggested that the decomposer community may be locally adapted to litter quality, providing a home-field advantage (HFA) resulting in accelerated decomposition of local compared to non-local litter, after accounting for decomposition differences due to litter quality and the functional capacity of microorganisms. Although widely tested in forests, this hypothesis remains controversial and lacks a general support...

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  • University of Concepción
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