- Larsen, Royce;
- Robins, Joseph G;
- Jensen, Kevin B;
- Shapero, Matthew;
- Striby, Karl;
- Althouse, LynneDee;
- George, Melvin;
- Horney, Marc;
- Rao, Devii;
- Hernandez, Alexander;
- Dahlgren, Randy;
- Bartolome, James
• Peak standing crop (PSC) and residual dry matter (RDM) are the primary measures of production and grazing intensity on California's annual rangelands. • One of the most common methods of monitoring forage metrics is to clip 1-ft2 quadrats. The USDA Forest Service, Bureau of Land Management, universities, and other land managers have been using this methodology since the 1930s. • We used best linear unbiased predictors (BLUEs) to determine 95% confidence intervals for PSC and RDM. For both PSC and RDM, as the number of samples taken increased from 1 to 10, the predictive ability also significantly increased. We found no evidence of increased predictive power past 10 samples.