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<br />3116. Investigate the effects of environmental <br />contaminants at breeding areas. <br />32. Protect and enhance populations during migration and winter. <br />321. Manage areas to maximize survival of birds during migration. <br />322. Manage winter areas to maximize survival of birds during <br />winter. <br />3221. Investigate the effects of human activities on <br />winter survival. <br />3222. Investigate the effects of environmental <br />contaminants. <br />4. Preserve and enhance habitat. <br />41. Provide protection and management of breeding habitat. <br />411. Identify areas of essential breeding habitat. <br />412. Continue to evaluate areas for consideration as essential <br />breeding habitat. <br />413. Establish liaison with agencies and organizations with land <br />and water management responsibilities. <br />414. Revise, es.tablish, or utilize land and water laws and <br />regulations to provide protection along rivers and lakes. <br />415. Develop criteria and priorities for breeding habitat <br />protection. <br />416. Develop management plans for breeding habitat. <br />4161. Determine direct, indirect and cumulative effects of <br />manipulation of river hydraulics, flow regimes, and <br />sediment discharge on breeding and foraging habitat. <br />4162. Identify river flow regimes that will protect and <br />enhance breeding and foraging habitat. <br />4163. Determine the relationship of existing artificial <br />breeding sites to river sites. <br />4164. Identify need and techniques of improving habitat by <br />management of substrate and by vegetation control <br />through physical. and/or non-toxic chemical means. <br />4165. Study feasibility and determine need for creating <br />new habitat and implement trials to determine <br />success rates of creating new habitat. <br />4166. Develop lake and reservoir control policies where <br />existing and potential interior least tern habitat <br />is threatened. <br />4167. Identify needs and techniques for managing water <br />levels. <br />417. Evaluate success of protection and management techniques. <br />42. Provide protection and management of migration habitat. <br />43. Provide protection and management of winter habitat. <br />431. Identify areas of essential winter habitat. <br />432. Develop criteria and priorities for winter habitat <br />protection. <br />433. Develop management techniques. <br />434. Modify construction activities that may reduce or negatively <br />alter winter habitat. <br />435. Evaluate success of protection and management techniques. <br />5. Develop and implement an education program that publicizes information <br />on the interior least tern, including its life history, reasons for <br /> <br />31 <br />