More than 70 years after the Santa Cruz River through Tucson died, a little less than a mile will return to life Monday. Late that afternoon, Tucson Water officials will launch a “grand experiment,” ...
A rare species prized by birders in Southern Arizona has been unceremoniously stripped of its elegance, and at least one local expert isn’t happy about the change. A leading panel of taxonomists ...
Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...
This site displays a prototype of a “Web 2.0” version of the daily Federal Register. It is not an official legal edition of the Federal Register, and does not replace the official print version or the ...
The Audubon Bird Guide is a free and complete field guide to over 800 species of North American birds, right in your pocket. Built for all experience levels, it will help you identify the birds around ...
Thank you for your commitment and dedication to your Christmas Bird Count circles. This page provides materials and resources for compilers and regional editors to help plan and conduct your count. To ...
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Reproducible species distribution and connectivity modelling of North American river otters (Lontra canadensis) in Texas, evaluating how human-created surface-water networks influence habitat ...
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