EcoMonitoring 



Name: HISTRIONICUS HISTRIONICUS 

 Conunon name: HARLEQUIN DUCK 



Reference code: EM.USMTHP2 * 1 Survey site: MARTEN CREEK 

 Goals & Objectives: 



Management plan: Monitoring plan: Y Monitoring level: 2 



Management goals: 



Monitoring goals: TRACK CHANGES IN THE POPULATION AND REPRODUCTIVE SUCCESS; 

 DETERMINE SITE FIDELITY. 



Methods: VISUAL SURVEYS, WALKING LENGTH OF EO UPSTREAM (IF POSSIBLE) 

 Sampling frequency: MINIMUM TWICE PER YEAR, CA. MAY & JULY/AUGUST. 



Visit dates: 1987-06-18 

 1987-06-22 

 1988-06-18 

 1989 

 • 1993-06-02 

 1993-06-02 

 1993-07-29 

 1993-07-29 

 1992-05-12 

 1992-06-01 

 1992-08-04 



Coordinator: REICHEL, JIM 



Trends & Recommendations: 



Short-term trend: STABLE Long-term trend: 



Interpretation: POPULATION APPEARS STABLE OVER LAST 5 YEARS. 



Current condition: SATISFACTORY 



Comments: CURRENT POPULATION SEEMS TO BE MAXIMUM THAT HABITAT CAN 



SUPPORT . 



Management recommendations: 



Monitoring recommendations: 



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