Buscar
Mostrando ítems 21-30 de 268
On the environments of Type Ia supernovae within host galaxies
(2015)
We present constraints on Type Ia supernovae (SNe Ia) progenitors through an analysis of the environments found at the explosion sites of 102 events within star-forming host galaxies. Hα and Galaxy Evolution Explorer ...
Record-breaking climate anomalies lead to severe drought and environmental disruption in western Patagonia in 2016
(Inter-Research, 2018)
Traditionally temperate and hyper-humid, western Patagonia experienced its most severe drought during the summer and fall of 2016. Along with precipitation deficits larger than 50% there was a similar reduction in river ...
Invasion of salmonids in the Puna and Southern Chilean Altiplano: patterns and threats to the biodiversity
(Regional Euro-Asian Biological Invasions Centre-Reabic, 2020)
There is scarce documentation of the presence of trout in the Puna and southern Altiplano in Chile, in spite of the risk that they represent for these ecosystems of high environmental value, which have endemic and highly ...
Co-occurrence interaction networks of extremophile species living in a copper mining tailing
(Frontiers Media, 2022)
Copper mining tailings are characterized by high concentrations of heavy metals and an acidic pH, conditions that require an extreme adaptation for any organism. Currently, several bacterial species have been isolated and ...
Environment-derived constraints on the progenitors of low-luminosity Type I supernovae
(Oxford University Press on behalf of the Royal Astronomical Society, 2013)
We present a study of the properties of the host galaxies of unusual transient objects of two
types, both being subluminous compared with the major classes of supernovae. Those of one
type exhibit unusually strong calcium ...
Erratum to: Phenotypic variability and genetic differentiation in continental and island populations of Colobanthus quitensis (Caryophyllaceae: Antarctic pearlwort)
(Springer-Verlag, 2018)
Colobanthus quitensis (Antarctic pearlwort) is one of the only two native vascular plants to inhabit the extreme environmental conditions of Antarctica. Colobanthus quitensis has a wide geographic distribution, both in ...
Carcinogenic and non-carcinogenic health risks of arsenic exposure in drinking water in the rural environment
(Iran Solid Waste Association, 2020)
Carcinogenic and systemic health effects of arsenic exposure in drinking water are well documented. This study estimated the risk associated with chronic consumption of water with high concentrations of arsenic in children ...
Cushion plants as microclimatic shelters for two ladybird beetles species in alpine zone of central Chile
(INST ARCTIC ALPINE RES, UNIV COLORADO, 2006-05)
High mountain environments are highly stressful for insect survival. It has been suggested that small microtopographic variations generating less stressful microclimatic conditions than the surrounding environment would ...
Extreme climatic events shape arid and semiarid ecosystems
(ECOLOGICAL SOC AMER, 2006-03)
Climatic changes associated with the El Nino Southern Oscillation (ENSO) can have a dramatic impact on terrestrial ecosystems worldwide, but especially on arid and semiarid systems, where productivity is strongly limited ...