From the morning paper, a wander in the bosque to look for signs of drought (sub/ad req.):

There is a resilience, it turns out, to these desert ecosystems. They’re used to this happening every so often, and they know what to do in response. Some leaf out less, or leaf out later. Some depend on deep roots that reach down to groundwater. Some shut down water to parts of the body, sacrificing branches to save their core.