INVESTIGADORES
YORIO Pablo Martin
artículos
Título:
Effects of research activity on hatching success in a colony of South American Terns (Sterna hirundinacea)
Autor/es:
BLANCO, G.; YORIO, P.; BERTELLOTTI, M.
Revista:
WATERBIRDS (DE LEON SPRINGS, FLA.)
Editorial:
WATERBIRD SOC
Referencias:
Año: 1999 vol. 22 p. 148 - 150
ISSN:
1524-4695
Resumen:
Determination of breeding success of birds requires
a variable amount of disturbance by human ob-servers. The effects of human
disturbance during research activities were assessed in a colony of South
American Terns (Sterna hirundinacea) by comparing hatching success between
visited and unvisited nests during incubation. Predation by a mustelid,
probably the Little Grison (Galictis cuja), was the main cause of nest failure
during incuba-tion. Hatching success and daily nest survival rates during
incubation did not differ between visited and unvisited nests