Trapping White Ibises with rocket nets and mist nets in the Florida Everglades

نویسندگان

  • Julie A. Heath
  • Peter C. Frederick
چکیده

We lured White Ibises (Eudocimus albus) to trap sites with decoy plastic flamingos and captured them with a rocket net or mist nets. Our ability to attract ibises to a site (and consequently our capture success) was affected by vegetation height and water depth but not by decoy numbers or their arrangement. Both the rocket net (37 ibises) and mist nets (97 ibises) caught birds. The number of birds captured per day was the same for both methods, but the rocket net trap captured more birds per set than did mist nets. Because mist nets were easy to reset we captured 1–2 birds per set multiple times in one day with mist nets. We preferred mist nets over rocket net traps because mist nets allowed for shorter bird processing times, greater ease of set up, and fewer safety considerations for transport and operation of the trap. Also, rocket nets required more equipment and expense. Although we discouraged other species from landing at a trap site, there was evidence that these techniques may also be useful for capturing other wading birds. SINOPSIS. Captura de cigueñas (Eudocimus albus) con redes de cohetes y redes de niebla en la Florida Atraimos cigueñas (Eudocimus albus) a lugares particulares utilizando señuelos de flamencos para atraparlas con redes de cohetes y con redes de niebla. Nuestra habilidad para atraer las aves a ciertas localidades fue afectada por la altura de la vegetación, la profundidad del agua, pero no ası́ por el número de señuelos y el arreglo de estos. Se atraparon 37 individuos con red de cohetes y 97 con las de niebla. El número de aves atrapadas por dia fue similar para ambos tipos de redes. No obstante, la primera permitió más aves por conjunto de estas. Dado el caso de que las redes de niebla son más fáciles de rearreglar capturamos de 1–2 aves por conjunto de puesta. Preferimos utilizar las redes de niebla ya que estas permiten el procesar estas más rapidamente, son más fáciles de montar y necesitan menos consideraciones de cuidado para transportarlas y operarlas. Por otro lado las redes de cohetes requieren más equipo y experiencia. Aunque virtualmente evitamos a otras especies, la técnica de captura parece ser adecuada para otras especies vadeadoras.

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تاریخ انتشار 2003