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Ecology and Management of North American Savannas
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Evaluating the role of cutting treatments, fire and soil seed banks in an experimental framework in ponderosa pine forests of the Black Hills, South Dakota
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Spatial and temporal soil moisture resource partitioning by trees and grasses in a temperate savanna, Arizona, USA
TLDR
Stable isotope analysis was used to determine sources of water used by coexisting trees and grasses in a temperate savanna dominated by Quercus emoryi Torr, and it was found that very young seedlings are decoupled from Grasses in this system, which may facilitate germination and early establishment of Q.emoryi within extant stands of native grasses.
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IMPLICATIONS OF PRECIPITATION REDISTRIBUTION FOR SHIFTS IN TEMPERATE SAVANNA ECOTONES
In contrast to documented increases in woody plant dominance of former savannas and grasslands of North America, ecotones between oak (Quercus L.) woodlands and semi-desert grasslands of the…
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Stable carbon isotope analysis of soil organic matter illustrates vegetation change at the grassland/woodland boundary in southeastern Arizona, USA
TLDR
Stable carbon isotope analysis of soil organic matter indicated that both dominant woody species (C3) are recent components of former grasslands (C4), consistent with other reports of recent increases in woody plant abundance in grasslands and savannas throughout the world.
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FACILITATION OF CONSPECIFIC SEEDLING RECRUITMENT AND SHIFTS IN TEMPERATE SAVANNA ECOTONES
TLDR
Results of this and complementary research suggest that the lower tree line in southern Arizona is stabilized by self-enhancing feedback mechanisms of overstory shade, seed dispersal, and seedling establishment, coupled with strong abiotic constraints beyond the current ecotone.
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Impacts of Fire‐Suppression Activities on Natural Communities
Abstract:  The ecological impacts of wildland fire‐suppression activities can be significant and may surpass the impacts of the fire itself. A recent paradigm shift from fire control to fire…
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Effects of herbivory and herb interference on oak establishment in a semi‐arid temperate savanna
TLDR
Control-environment experiments indicated that Quercus seedlings are tolerant of frequent clipping, but undipped seedlings produce more biomass than clipped seedlings, and seedlings were much less tolerant of clipping or defoliation in the field than in the growth chamber.
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Fire behavior characteristics of buffelgrass-fueled fires and native plant community composition in invaded patches
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Response of semi‐desert grasslands invaded by non‐native grasses to altered disturbance regimes
TLDR
Variability of plant community richness, diversity, and cover over time appear to be most closely linked to fluctuations in precipitation rather than human-altered disturbance regimes.
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