The St. Olaf College team's findings on song recognition in the fly Ormia ochracea are part of special on 'How Enemies Shape Communication Systems' published in the journal Frontiers in Ecology and Evolution
The findings showed that of nearly 3 billion birds lost, 90 percent belong to 12 bird families, including sparrows, warblers, finches, and swallows—common, widespread species
These new meters are available in two versions—the ST400, specifically designed for pH analysis and the ST400M—a multi-parameter meter ideal for both pH and conductivity testing