Results 61 to 70 of about 128,366 (227)

Coupling between the environment and the pelagic resources exploited off northern Chile: ecosystem indicators and a conceptual model Acoplamiento entre el ambiente y los recursos pelágicos explotados en el norte de Chile: un modelo conceptual

Latin American Journal of Aquatic Research, 2008
The eastern boundary of the Chile-Peru Current System constitutes one of the most biologically productive ecosystems in the world, due largely to coastal upwelling and the horizontal advection of nutrients.
Eleuterio Yáñez, Samuel Hormazábal, Claudio Silva, Aldo Montecinos, M. Angela Barbieri, Alexander Valdenegro, Alejandra Órdenes, Fabián Gómez   +7 more
doaj  

Variabilidade genética de caracteres forrageiros em acessos do gênero Paspalum em diferentes ambientes

Semiárida, 2020
O objetivo do trabalho foi determinar a variabilidade genética entre acessos de diferentes espécies de Paspalum e a expressão de caracteres de interesse forrageiro em distintos locais e anos de cultivo. Os experimentos foram conduzidos em delineamento experimental de blocos ao acaso com três repetições com parcelas compostas por cinco acessos de P ...
K. M. Saraiva, E. A. Pereira, E. Motta, N. Kuhn, G. K. Battisti, J. A. G. Silva, C. Simioni, M. Dall’agnol   +7 more
openaire   +1 more source

Complex relationship between soil fungi and conservation value assessments in boreal forests

Conservation Biology, Volume 39, Issue 4, August 2025.
Abstract Large‐scale industrial forestry is a threat to biodiversity and imposes long‐lasting changes to many forested biomes. Preserving forests as reserves is an important component of the strategy for safeguarding forest biodiversity. Yet, the selection of forests of high biodiversity value is usually based on proxies (i.e., subsets of aboveground ...
Julia Kyaschenko, Louis Mielke, Mari Jönsson, Anne‐Maarit Hekkala, Simon Kärvemo, Jörgen Sjögren, Karina E. Clemmensen, Joachim Strengbom   +7 more
wiley   +1 more source

Diagnóstico socio-ambiental en el Valle del Guarco

Tecnología en Marcha, 2016
Costa Rica posee una marcada diversidad de flora y fauna, terrenos extremadamente escarpados y una amplia variabilidad climática. Como consecuencia de un mal manejo de recursos y debido a un modelo de desarrollo que no contempla su conservación y manejo ...
Elizabeth Arnáez-Serrano, Benjamín Mora, Hilda Quesada-Carvajal, Virginia Valverde, Enrique Hernández   +4 more
doaj   +2 more sources

Climatic and Edaphic Drivers of Soil Organic Carbon and Pyrogenic Carbon Stocks Across Elevation and Disturbance Gradients in Colombian Andean Forests

Global Change Biology, Volume 31, Issue 7, July 2025.
This study examined soil organic carbon (SOC) and pyrogenic carbon (PyC) stocks in tropical Andean soils across elevation and disturbance gradients in Colombia. SOC stocks to 100 cm depth averaged 433.10 Mg C ha−1 while PyC was 34.13 Mg C ha−1. Key drivers of PyC stocks include soil clay (%), mean annual precipitation (PA), pH, Ca, and NDVI, which ...
Carmen R. Montes‐Pulido, Michael I. Bird, Lidiany C. da Silva Carvalho, Julieth Serrano, Carlos A. Quesada, Ted R. Feldpausch   +5 more
wiley   +1 more source

La variabilidad climática y las pesquerías en el Pacifico suroriental Climate variability and fisheries in the southeastern Pacific

Latin American Journal of Aquatic Research, 2012
El Pacífico suroriental es una de las áreas más productivas del planeta debido a su intensa dinámica de circulación oceánica cuya manifestación más importante, desde el punto de vista oceanográfico y biológico, la constituye los afloramientos costeros ...
Marco Espino, Carmen Yamashiro
doaj  

Influencia de los grupos estratégicos sobre el rendimiento empresarial: Un enfoque multinivel [PDF]

, 2009
One of the main research questions in the field of strategic management is why firms obtain different performance levels. This paper answers this question from the strategic groups approach.
Claver Cortés, Enrique, Molina Azorín, J. F., Pereira Moliner, J.   +2 more
core   +1 more source

Thermal tolerance is linked to anatomical but not morphological leaf traits in woody species of Andean tropical montane forests

Functional Ecology, Volume 39, Issue 6, Page 1537-1549, June 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The world is experiencing a rise in global temperatures as a result of climate change. Higher temperatures along with more frequent heat waves negatively impact physiological levels and ultimately lead to plant death.
Mónica González, María Cuervo‐Gómez, Claudia Garnica‐Díaz, Fagua Álvarez‐Flórez, Laura Cubillos‐Ariza, Victor Giral, Grace John, Luz Marina Melgarejo, Beatriz Salgado‐Negret   +8 more
wiley   +1 more source

Una herramienta para monitorear sequías en regiones áridas y semiáridas de Patagonia Norte [PDF]

RIA: Revista Investigaciones Agropecuarias, 2012
La variabilidad ambiental es una característica de regiones pastoriles áridas y semiáridas, siendo la sequíauno de los principales problemas en sistemas ganaderos extensivos, con implicancias productivas y económicas tanto a escala predial como regional.
EASDALE, M.H, BIANCHI, E., BRUZONE O., VILLAGRA S.E., SIFFREDI, G.L, GAITÁN J.J, UMAÑA F, ORICCHIO, P, LÓPEZ, D.   +8 more
doaj  

Aplicación del análisis multivariante para la sostenibilidad ambiental urbana

Bitácora Urbano Territorial, 2017
La determinación de las variables ambientales urbanas en el marco de la sostenibilidad ambiental urbana, implica la identificación de las posibles variables que incidan de manera crítica en el desarrollo sostenible urbano a nivel de parcelas y ...
Loraine Mayrim Giraud Herrera, Giobertti Morantes   +1 more
doaj   +1 more source