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2007 Summaries of Wildlife Research Findings - Minnesota State ...

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Probability <strong>of</strong> occupancy<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

385<br />

0.0<br />

0.0 1.0 2.0 3.0<br />

Road density (km/km 2 )<br />

Figure 3. Model-averaged probabilities (heavy lines) and 95% confidence intervals (light<br />

lines) <strong>of</strong> a sample plot in <strong>Minnesota</strong> being occupied by a prairie-chicken lek during spring <strong>of</strong><br />

2005 over the observed range <strong>of</strong> road densities in the overlap domain (i.e., plots known to<br />

have contained a lek during 2004; solid lines) and nonoverlap domain (i.e., all other plots in<br />

the study area; dashed lines) based on a priori models.

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