Results 191 to 200 of about 15,052 (221)
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Nitrogen Mineralization and Soil Fertility in the Dry Chaco Ecosystem (Argentina)
Soil Science Society of America Journal, 1991Abstract Grassland productivity of Dry Chaco ecosystems in Argentina is often decreased by the invasion of shrubs ( Larrea spp.). To better understand the reasons for this degradation and how to reverse or avoid it, we studied soil fertility and N‐mineralization rates under ...
M. J. Mazzarino +4 more
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‘Winners’ and ‘losers’ of the agricultural expansion in the Argentine Dry Chaco
Landscape Research, 2020Biodiversity and natural resources constitute a social safety net for forest-dependent communities and represent their main source of livelihood.
María Vallejos +3 more
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Groundwater dynamics, land cover and salinization in the dry Chaco in Paraguay
Ecohydrology & Hydrobiology, 2020Abstract A two-year experimental study on saline groundwater dynamics in the Paraguayan dry Chaco is reported. This study was designed to better understand dryland salinity as a natural phenomenon and a potential consequence of land use changes, in order to avoid adverse economic and environmental impacts.
Albrecht Glatzle +5 more
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Stress and Disturbance: Vegetation Dynamics in the Dry Chaco Region of Argentina
Journal of Biogeography, 1990This paper analyses two processes acting on The second process is the dynamics of gallery forest vegetation dynamics in the dry Chaco region of Argentina. resulting from intensive river-bed migrations which The major one is the response of herbaceous/woody species characterize the region. A main process model relates the to overgrazing.
Jorge Adamoli +3 more
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Soil factors determining the change in forests between dry and wet Chacos
Flora - Morphology, Distribution, Functional Ecology of Plants, 2011Abstract This work consists of an extensive study of soil properties and floristic composition of the Paraguayan Chacoan forests. The role of the soil factors was determined conditioning the classical landscape differentiation between the dry western Chaco and the wet eastern Chaco.
Gonzalo Navarro +2 more
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A conservation landscape for the Dry Chaco based on species habitat suitability
Ethnobiology and Conservation, 2021The Dry Chaco (DCH) is a biodiversity-rich region that contains the largest dry forest in the world. It is seriously endangered and has one of the fastest deforestation rates. Yet, very few conservation efforts have been undertaken to protect this ecosystem, and information to develop efficient and sustainable land-use plans is scarce. This study aimed
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Ant diversity along a wide rainfall gradient in the Paraguayan dry Chaco
Journal of Arid Environments, 2010Aridity is expected to affect ant diversity by limiting the availability of resources and causing physiological distress to the ant populations. Studies conducted so far on such relationships are few and results are inconsistent due to confounding factors.
Delsinne, Thibaut +3 more
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Forest Fragmentation, Pollination, and Plant Reproduction in a Chaco Dry Forest, Argentina
Ecology, 1994In a fragmented, dry subtropical forest in northwestern Argentina, we compared pollination levels, fruit set, and seed set among small (<1 ha) forest fragments, large (>2 ha) fragments, and continuous forest in 16 plant species representing a wide range of pollination systems, breeding systems, and growth forms. For three species, Prosopis nigra (
Marcelo A. Aizen, Peter Feinsinger
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Soil Physical Changes After Conversion of Woodlands to Pastures in Dry Chaco Rangelands (Argentina)
Rangeland Ecology & Management, 2017ABSTRACT The conversion of dry woody rangelands into pastures can alter key soil physical properties that regulate ecosystem water circulation and storage. Based on three paired stands of native woodlands and pastures established 20 years ago in the southern Dry Chaco (San Luis, Argentina), we described contrasts in five soil physical properties using ...
Magliano, Patricio Nicolás +4 more
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Phenology and phylogeny of animal-dispersed plants in a Dry Chaco forest (Argentina)
Journal of Arid Environments, 2002Phenological patterns of dry tropical forests have been related to environmental factors, mainly rainfall and insolation, and to plant endogenous rhythms inherent to trees as large, perennial plants. Superimposed to these environmental ('external hypothesis') and intrinsic ('endogenous hypothesis') explanations, there may be phylogenetic constraints ...
Marco, Diana E., Páez, Sergio A.
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