April 2, 2024 Maurer, G. E., A. Hallmark, R. F. Brown, O. E. Sala and S. L. Collins. 2020. Sensitivity of primary production to precipitation across the United States. Ecology Letters 23(3):527-536. Home » Maurer, G. E., A. Hallmark, R. F. Brown, O. E. Sala and S. L. Collins. 2020. Sensitivity of primary production to precipitation across the United States. Ecology Letters 23(3):527-536.