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\begin{document}

\title{The potential for quantitative wood anatomy of dryland riparian trees to
improve understanding of historic water availability in the USA
Southwest}



\author[1]{Richard Thaxton}%
\author[1]{David Meko}%
\affil[1]{University of Arizona}%


\vspace{-1em}



  
  \date{June 18, 2024}


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\begin{abstract}
Due to the effects of climate change, the USA Southwest is expected to
experience increased temperatures and decreased water availability.
Extended droughts will likely have important consequences for riparian
trees whose growth and habitat are strongly limited by water
availability. One consequence of extended water table declines on
riparian trees is the development of wood anatomical anomalies. Using
techniques developed for quantitative wood anatomy (QWA) it may be
possible to quantify these anomalies and reconstruct water table
variability through time. We explore this possibility using tree rings
from netleaf hackberry (Celtis laevigata var. reticulata) collected
along the Upper Santa Cruz River, Arizona. We suggest hackberry has the
potential to be used 1) as an indicator of riparian ecosystem health,
and 2) to provide improved reconstructions of water availability.
Understanding how hackberry responds to periods of low and high flows
can provide insight into how to better manage these ecosystems into the
future.%
\end{abstract}%



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