Evento
Nest survival of the Two-Banded Plover (Charadrius falklandicus) population in Northern Chubut Province, Patagonia Argentina
Hevia, Glenda Denise
; D'amico, Veronica Laura
; Bertellotti, Néstor Marcelo
; Galindo Espinosa, Daniel; Sandercock, Brett
![Icon](/themes/CONICETDigital/images/conicet.png)
![Icon](/themes/CONICETDigital/images/conicet.png)
![Icon](/themes/CONICETDigital/images/conicet.png)
Tipo del evento:
Conferencia
Nombre del evento:
North American Ornithological Conference VI
Fecha del evento:
16/08/2016
Institución Organizadora:
Smithsonian Migratory Bird Center;
American Ornithological Society;
Título del Libro:
North American Ornithological Conference VI: Abstracts
Editorial:
American Ornithological Society
Idioma:
Inglés
Clasificación temática:
Resumen
Current efforts to monitoring the Two-Banded Plover (Charadrius falklandicus), an endemic shorebird to southern South America, have provided information on their breeding biology at beaches with human disturbance in northern Patagonia, Argentina. We estimate annual nest survival and describe causes of nest failure at two beaches with high and low levels of human disturbance located in Puerto Madryn (42°S, 65°W). Fieldwork surveys were conducted by foot using the nearest road track between October and December, 2012. We recorded spatial coordinates of each nest and the distance to the: high tide line, road track, nearest con-specific nest. We floated eggs to estimate hatching dates and nests were monitored 3-5 weekly to verify success (≥1 egg hatched) or failure (human impact, flooding, abandoned, and predation). We used encounter histories for 41 nests found throughout an 89-day nesting season to estimate the DSR (Daily Survival Rate) from the beginning of incubation and analyze competing models with RMark package in R. The most common cause of nest failure at Parana was human impact: vehicles trampled eggs (80%, n=7), followed by predation (20%, n=2). By contrast, at Las Canteras the most common cause was flooding by extraordinary high tides (50%, n=3), followed by parental abandonment (33%, n=2) and human impact (17%, n=1). The DSR was highest in Las Canteras (0.983; n=22), than in Parana (0.966; n=19). Management actions to protect plovers from harmful human disturbance are urgently need it.
Palabras clave:
TWO BANDED PLOVER
,
NEST SURVIVAL
,
PATAGONIA
Archivos asociados
Licencia
Identificadores
Colecciones
Eventos(CCT-CENPAT)
Eventos de CTRO.CIENTIFICO TECNOL.CONICET - CENPAT
Eventos de CTRO.CIENTIFICO TECNOL.CONICET - CENPAT
Eventos(CESIMAR)
Eventos de CENTRO PARA EL ESTUDIO DE SISTEMAS MARINOS
Eventos de CENTRO PARA EL ESTUDIO DE SISTEMAS MARINOS
Citación
Nest survival of the Two-Banded Plover (Charadrius falklandicus) population in Northern Chubut Province, Patagonia Argentina; North American Ornithological Conference VI; Washington; Estados Unidos; 2016; 203-204
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