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Vegetation and terrain drivers of infiltration depth along a semiarid hillslope
(Elsevier Science, 2018-12)
An improved understanding of the drivers controlling infiltration patterns in semiarid regions is of key importance, as they have important implications for ecosystem productivity, retention of resources and the restoration ...
Aboveground vegetation and perennial grass seed bank in arid rangelands disturbed by grazing
(Elsevier, 2015)
Recruitment by seeds can be an important mechanism for recovery of plant communities following disturbance. Our objective was to assess the density and spatial patterning of perennial grass (highly preferred by herbivores) ...
Resource concentration hypothesis: effect of host plant patch size on density of herbivorous insects
(Springer-Verlag, 1995)
The resource concentration hypothesis (Root 1973) predicts that specialist herbivorous insects should be more abundant in large patches of host plants, because the insects are more likely to find and stay longer in those ...
Water fluxes between inter-patches and vegetated mounds in flat semiarid landscapes
(Elsevier Science, 2017-01)
It has been assumed that bare soil (BS) inter-patches in semi arid spotted vegetation behave as sources of water to near vegetated soil (VS) patches. However, little evidence has been gained from direct measurements of ...
Temporal and micro-spatial patterning of seedling establishment. Consequences for patch dynamics in the southern Monte, Argentina
(Springer, 2004-05)
We compared the temporal and micro-spatial patterning of seedling emergence and establishment of two cohorts of perennial grasses and shrubs in the southern Monte, Argentina. Samplings were carried out in two contrasting ...
Structure of vegetation patches in northwestern Patagonia, Argentina
(Springer, 2009-09)
Vegetation of arid and semiarid environments has in general a patchy distribution. Our objective was to (a) determine several qualitative and quantitative analytical characteristics of vegetation patches in an arid zone ...
Biological and physical factors affecting the colonization of vegetation-free patches in a SW Atlantic salt marsh
(Inter-Research, 2015-07)
In many Northern Hemisphere salt marshes, recovery of disturbance-generated bare areas usually occurs within a few years. However, in some southwestern Atlantic marshes, bare patches may remain unchanged for several years. ...
Interaction between vegetation patches and gaps: A self-organized response to wáter scarcity
(Elsevier, 2020)
The dynamics of ecological systems are often described by integrodifferential equations that incorporate nonlocal interactions associated with facilitative, competitive interactions between plants, and seed dispersion. In ...
Variation of morphological and chemical traits in sexes of the dioecious perennial grass Poa ligularis in relation to shrub cover and aridity in Patagonian ecosystems
(Springer Tokyo, 2016-01)
Sexes of dioecious species may have dimorphic responses to environmental variation due to differences in resource requirements and reproductive costs. We analyzed the effect of aridity/relative shrub cover, and vicinity ...