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    We have three goals. (1) To develop a suite of functionally relevant climate variables for modelling vegetation distribution on arid and semi-arid landscapes of the Great Basin, USA. (2) To compare the predictive power of vegetation distribution models based on mechanistically proximate factors (water deficit variables) and factors that are more mechanistically removed from a plant’s use of water (precipitation). (3) To quantify the climate gradients that control shrub distributions in a cold desert environment.

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    Dilts, Thomas E.; Weisberg, Peter J.; Dencker, Camie M.; Chambers, Jeanne C. 2015. Functionally relevant climate variables for arid lands: A climatic water deficit approach for modelling desert shrub distributions. Journal of Biogeography. doi: 10.1111/jbi.12561


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    climatic water deficit, climograph, cold desert shrubs, gradient analysis, Great Basin, mechanistic model, PRISM, species distribution modelling, water balance, western USA

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