Waste Rice Seed Food is an important wintering Waterfowl for ITS and current estimates of Availability are Needed to
Determine the carrying capacity of Rice Fields and Habitat Conservation Guide. We used a line-intercept method to
mass-density of Rice Seed Estimate remaining after 2,010 in the Sacramento Valley during Harvest (SACV) of California
and compared with results from previous estimates and Mississippi Alluvial Valley Studies in the SACV (MAV). Posterior
Mean (95% credible interval) estimates of total waste Rice Seed mass-density for the SACV in 2,010 were 388 (336-449)
kg / ha in Conventionally harvested and Fields 245 (198-307) kg / ha in Stripper-Head. harvested fields; the two thousand and ten Massdensity
is nearly identical to the Mid-1980s Estimate for 36% Lower than Conventionally harvested Fields but the mid-
1990s Estimate for stripped Fields. About 18% of SACV Fields Stripper-Head were harvested in 2,010 vs. 9-15% in the
Mid-1990s and 0% in the Mid-1980s; Due to a 50% increase but in Area planted Rice, Rice Seed in total mass of waste
remaining after SACV Harvest was 43% in 2,010th Greater than in the Mid-1980s. However, total mass of Seed-eating
Increased 82% also Waterfowl, and the ratio of waste Rice Seed to Seed-eating Waterfowl mass was 21% smaller in 2010
than in the Mid-1980s. Mass-densities of waste remaining after Rice Harvest in SACV Fields Within the Range are reported
for MAV Fields. However, because there is a LAG between Harvest and Waterfowl use in the MAV but not in the SACV,
Greater Seed loss is estimated in the MAV and mass-density waste Seed Available to wintering Waterfowl SACV Fields in
recent times is 5-30 About MAV. estimates. Waste Rice Seed remains an Abundant Food Source for Waterfowl wintering
in the SACV, but Increased use of Stripper-Head harvesters would this Reduce Food. To provide Accurate Data on
carrying capacities of Rice Fields necessary for Conservation planning, Trends in Rice planted Area, Harvest method, and
postharvest field Treatment should be Tracked and impacts of postharvest field Treatment and Other Farming Practices
on Rice Seed Availability waste should be investigated.
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