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Mostrando ítems 51-60 de 111
Changes in abundance and composition of a Caribbean coral reef zooplankton community after 25 years
(Universidad de Costa Rica, 2016)
Records of environmental changes during the Holocene from Isla de los Estados (54.4°S), southeastern Tierra del Fuego
(Elsevier Science, 2010-12)
Southernmost Patagonia, located at the relatively narrow passage between Antarctica and South America, is a highly sensitive region for recording meridional and zonal changes in the pattern of oceanic and atmospheric ...
Effects of UV radiation on aquatic ecosystems and interactions with other environmental factors
(Royal Society of Chemistry, 2015-01)
Interactions between climate change and UV radiation are having strong effects on aquatic ecosystems due to feedback between temperature, UV radiation, and greenhouse gas concentration. Higher air temperatures and incoming ...
Fuentes terrestres de contaminación que impactan la zona marino-costera del Golfo de Papagayo, Costa Rica
(Universidad Nacional (Costa Rica), 2019-07)
El Golfo de Papagayo, en los últimos años, ha experimentado un acelerado desarrollo socioeconómico que puede ejercer presión sobre sus espacios y recursos naturales, y contribuir, así, al deterioro de su zona ...
Dissolved nitrogen in rivers: comparing pristine and impacted regions of Brazil
(Instituto Internacional de Ecologia, 2010)
Riverine nitrogen distribution is increasingly controlled by anthropogenic activities in their watersheds, regardless of spatial scale, climate, and geographical zone. Consequently, modelling efforts to predict the export ...
Gaseous and fluvial carbon export from an Amazon forest watershed
(SPRINGER, 2011)
The transfer of carbon (C) from Amazon forests to aquatic ecosystems as CO(2) supersaturated in groundwater that outgases to the atmosphere after it reaches small streams has been postulated to be an important component ...
Interplay between climate and hydrogeomorphic features and their effect on the seasonal variation of dissolved organic matter in shallow temperate lakes of the Southern Andes (Patagonia, Argentina): a field study based on optical properties
(John Wiley & Sons Inc, 2017-10)
This study analyses the effects of the interplay between climate seasonality and hydrogeomorphic (HGM) lake features on dissolved organic matter (DOM) properties in two neighbouring shallow lakes of Andean Patagonia with ...
Opistobranquios del Parque Nacional Laguna de La Restinga, Isla de Margarita, VenezuelaOpisthobranchs of the National Park Laguna de La Restinga, Margarita Island, Venezuela
(Sociedad Malacologica de Chile, 2014-11)
En el Parque Nacional Laguna de la Restinga las escorrentías de origen terrestre, en conjunto con la surgenciacostera, contribuyen a la generación de una gran cantidad de nutrientes presentes, lo que setraduce en una ...
Linking optical and chemical signatures of dissolved organic matter in the southern Argentine shelf: Distribution and bioavailability
(Elsevier Science, 2019-07)
Fluorescence spectroscopy is commonly used to investigate the distribution and dynamics of dissolved organic matter (DOM) in marine systems. However, the direct comparison with chemical signatures is essential to substantiate ...
Efeitos de incêndios no balanço hídrico dos mananciais de uma grande metrópole neotropical: simulações usando o SWAT na interface solo-água-vegetação
(Universidade Federal de Minas GeraisBrasilICB - INSTITUTO DE CIÊNCIAS BIOLOGICASPrograma de Pós-Graduação em Ecologia, Conservacao e Manejo da Vida SilvestreUFMG, 2018-10-30)
The constancy of water supply in springs depends on the environmental services derived from soil-plant-topography interactions. Throughout the planet, forest fires constitute important agents of landscape transformation, ...