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What plant hydraulics can tell us about responses to climate-change droughts.
Climate change exposes vegetation to unusual drought, causing declines in productivity and increased mortality. Drought responses are hard to anticipate because canopy transpiration and diffusiveExpand
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Predicting stomatal responses to the environment from the optimization of photosynthetic gain and hydraulic cost.
Stomatal regulation presumably evolved to optimize CO2 for H2 O exchange in response to changing conditions. If the optimization criterion can be readily measured or calculated, then stomatalExpand
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A multi-species synthesis of physiological mechanisms in drought-induced tree mortality
Widespread tree mortality associated with drought has been observed on all forested continents and global change is expected to exacerbate vegetation vulnerability. Forest mortality has implicationsExpand
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A stomatal control model based on optimization of carbon gain versus hydraulic risk predicts aspen sapling responses to drought.
Empirical models of plant drought responses rely on parameters that are difficult to specify a priori. We test a trait- and process-based model to predict environmental responses from an optimizationExpand
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Dependence of Aspen Stands on a Subsurface Water Subsidy: Implications for Climate Change Impacts
The reliance of 10 Utah (USA) aspen forests on direct infiltration of growing season rain versus an additional subsurface water subsidy was determined from a traitand process-based model of stomatalExpand
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The stomatal response to rising CO2 concentration and drought is predicted by a hydraulic trait-based optimization model.
Modeling stomatal control is critical for predicting forest responses to the changing environment and hence the global water and carbon cycles. A trait-based stomatal control model that optimizesExpand
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In situ embolism induction reveals vessel refilling in a natural aspen stand
Little is known about the ability of trees to recover hydraulic conductance (k) within a growing season by regrowth or refilling of embolized conduits. Recovery of k lost to drought or other causesExpand
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'Pressure fatigue': the influence of sap pressure cycles on cavitation vulnerability in Acer negundo.
Vulnerability-to-cavitation curves (VCs) can vary within a tree crown in relation to position or branch age. We tested the hypothesis that VC variation can arise from differential susceptibility toExpand
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TUBERCULOSIS CAUSED BY MYCOBACTERIUM ORYGIS IN A GREATER ONE-HORNED RHINOCEROS (RHINOCEROS UNICORNIS): FIRST REPORT IN THE WESTERN HEMISPHERE
Abstract: Mycobacterium orygis, a newly identified member of the Mycobacterium tuberculosis complex, has been isolated predominantly from hoofstock in eastern Africa and the Arabian Peninsula, andExpand
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DERMATITIS AND RHINOSINUITIS CAUSED BY CURVULARIA SPECIES IN A CHINESE GORAL (NAEMORHEDUS GRISEUS)
Abstract: Curvularia spp. are globally distributed saprophytic fungi, classified in the literature as dematiaceous, or darkly pigmented fungi. These fungi have been increasingly recognized as causingExpand