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Conspecific leaf litter and root competition inhibits shrub emergence in the Patagonian steppe
(Springer, 2019-09)
A critical stage in the establishment of new individuals is seedling emergence and litter is a main factor affecting this stage. Recent research found that adults of Chuquiraga avellanedae are overdispersed. Among several ...
Resource partitioning and interactions enable coexistence in a grass-shrub steppe
(Academic Press Ltd - Elsevier Science Ltd, 2010-10)
We revisited a growth-form removal experiment after 12 years with the aim to compare the long-term population responses of three shrub species. Specifically, we were interested to know if the resource partitioning and plant ...
A complex interaction networks controls coexistence and relative abundances in grass-shrub Patagonian steppes
(Wiley, 2014-02)
1. The coexistence of shrubs and grasses has intrigued ecologists for the past century, and the conundrum of shrub-grass coexistence is at the core of debates on the functioning of semi-arid ecosystems. Here, we explored ...
Soil erosion facilitates shrub encroachment in Patagonian herbaceous steppes
(John Wiley & Sons Ltd, 2021-06)
Previous studies in northeastern Patagonia suggested that, mainly as a consequence of overgrazing by sheep, the herbaceous steppes are being replaced by shrub steppes dominated by Chuquiraga avellanedae as a consequence ...
Soil erosion as affected by shrub encroachment in northeastern Patagonia
(Society for Range Management, 2002-12)
La erosion de los suelos es la causa principal de las perdidas irreversibles del potencial productivo de los suelos en la mayoria de los pastizales naturales. En el nordeste de Patagonia, el aumento de la erosion de los ...
Vegetation of Península Valdés: Priority sites for conservation
(Springer, 2017)
This chapter describes the main vegetation units of Península Valdés at scale 1:250,000 with emphasis on relevant physiognomic and floristic characteristics. Based on photogrammetry (aerial photograph pairs 1:60,000) and ...
Effect of grazing and drought on seed bank in semiarid patchy rangelands of northern patagonia, Argentina
(University of Chicago Press, 2019-03-28)
Premise of research. The soil seed bank (SSB) plays a critical role in vegetation regeneration after stress and/or disturbance events. Here, we analyzed how drought and grazing influence the SSB of shrub patches and ...
Water status of plants under strips management in shrub-grass steppe of Southern Patagonia
(IRC, 2011-04-02)
In the province of Santa Cruz Junellia tridens shrublands cover 2,8 million ha. These cummunities grow on site with coarser textured soil are dominated by 60-70 cm tall shrubs. Water is the most important factor regulating ...
Grasses have larger response than shrubs to increased nitrogen availability: A fertilization experiment in the Patagonian Steppe
(Elsevier, 2014-01)
Nitrogen limits plant growth in almost all terrestrial ecosystems, even in low-precipitation ecosystems. Vegetation in arid ecosystems is usually composed of two dominant plant-functional types, grasses and shrubs, which ...
Effect of grazing and drought on seed bank in semi-arid patchy rangelands of northern Patagonia, Argentina
(University of Chicago Press, 2019)