Buscar
Mostrando ítems 21-30 de 971
Environmental and grazing influence on spatial variability of intertidal biofilm on subtropical rocky shores
(Inter-research, 2011-01-01)
Epilithic biofilm on rocky shores is regulated by physico-chemical and biological factors and is important as a source of food for benthic organisms. The influences of environmental and grazing pressure on spatial variability ...
Environmental and grazing influence on spatial variability of intertidal biofilm on subtropical rocky shores
(Inter-research, 2011-01-01)
Epilithic biofilm on rocky shores is regulated by physico-chemical and biological factors and is important as a source of food for benthic organisms. The influences of environmental and grazing pressure on spatial variability ...
Grass recruitment constraints along a grazing gradient in Patagonia: N-limitation x adult competition trade-off: Grass recruitment and grazing in Patagonia
(Academic Press Ltd - Elsevier Science Ltd, 2021-06)
We explored the effect of N addition and adult canopy competition on the recruitment of lost preferred species in the Patagonian steppe, where a decelerated N cycling scenario (sensu Ritchie et al., 1998) had been previously ...
Sheep grazing and soil bacterial diversity in shrublands of the Patagonian Monte, Argentina
(Academic Press Ltd - Elsevier Science Ltd, 2016-02)
Our objective was to assess whether long-term continuous sheep grazing was associated with the bacterial community of the Patagonian Monte soils. We randomly extracted soil samples from 5 plant-covered patches (PCP) and ...
Oxide nanolayers in stratified samples studied by X-ray resonant Raman scattering at grazing incidence
(Hindawi Publishing Corporation, 2015-08)
X-ray resonant Raman scattering is applied at grazing incidence conditions with the aim of discriminating and identifying chemical environment of iron in different layers of stratified materials using a low resolution ...
Grazing increases evapotranspiration without the cost of lowering soil water storages in arid ecosystems
(John Wiley & Sons Inc, 2017-09)
Grazing is the predominant land use practice in arid environments; however, there are relatively few studies of grazing effects on ecosystem functioning. We assessed the impact of grazing on soil moisture, evapotranspiration ...
Soil quality and productivity under zero tillage and grazing on Mollisols in Argentina – A long-term study
(2017-12)
The growing global demand for food, fibers and energy has triggered a scientific and political debate on how to attain increasing land productivity without further degrading soils. The objective of this study was to quantify ...
Vegetation structure and livestock grazing intensity affect ground-foraging birds in xerophytic forests of Central-East Argentina
(Elsevier, 2022-10)
Ground birds are strongly associated with the vegetation structure in natural environments under livestock grazing. Birds that fed on the ground may be the most affected by overgrazing, while those that fed on the shrub ...