NPWRC :: Effects of Grazing on Nesting by Upland Sandpipers in Southcentral North Dakota

Figure 1 - Five Bar Charts: Nest Density vs. Years 1981-1987 for Season-Long, Autumn-and-Spring, Spring, Autumn, and Control Treatments

Fig. 1. Nest density of upland sandpipers during spring, southcentral North Dakota, 1981-87. Symbols indicate when grazing occurred: GIF - One Filled Dot

= Light spring and summer grazing, June-September. GIF - Two Filled Dots

= Heavy spring grazing, May-June. GIF - Two Empty Dots

= Heavy grazing during previous autumn.

Figure 2 - Two Bar Charts: Vegetation Height-Density Readings vs. the five applied Treatments, by year, for (A) Late April and (B) Early June

Fig. 2. Percent of vegetation height-density readings in the <0.5-dm class on transects, southcentral North Dakota, 1981-87. Even numbered years are indicated with the cross-hatched pattern. (A) readings from late April; (B) readings from early June.

Figure 3 - Bar Chart: Percent of Nests vs. Vegetation Height-Density

Fig. 3. Nests of upland sandpipers by vegetation height-density classes, southcentral North Dakota, between 24 May and 14 June 1982-87.

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Effects of Grazing on Nesting by Upland Sandpipers in Southcentral North Dakota

Figures