Within seabirds, terns are frequently affected by foodrobbing. We document the occurrence of kleptoparasitism at a mixed-species colony ofRoyal (Sterna maxima) and Cayenne (S. eurygnatha) terns at Punta León, Chubut. In two seasons we observed both inter- and intra-specific food robbing by adult terns. The amount of food lost to pirates was relatively low, only 2% of prey brought back by the terns (n = 1127). Intra-specific food robbing was higher than inter-specific kleptopatasitism in the Royal Tern and similar in the Cayenne Tern. The percentage of food lost topirates in thecolony(2.1%,n = 921)wassimilarthan in groupsoftem chicksat the beach(2.4%, n = 206). Kleptoparasitismbetweentems at PuntaLeón appears to be of 1ittle importance with respect to its effectsonbothtem populations.
| Título: | Cleptoparasitismo intra e interespecífico en una colonia mixta de gaviotines Real (Sterna maxima) y Pico Amarillo (S. eurygnatha) |
| Título alt: | Inter and intra-specific kleptoparasitism at a mixed-species colony of Royal (Sterna maxima) and Cayenne terns (S. eurygnatha) |
| Autor: | Quintana, Flavio; Yorio, Pablo |
| Fecha: | 1997-11 |
| Titulo revista: | El Hornero |
| Editor: | Aves Argentinas. Asociación Ornitológica del Plata |
| URL Persistente: | http://hdl.handle.net/20.500.12110/hornero_v014_n04_p256 |
| Ciudad: | Buenos Aires |
| Idioma: | Español |
| Palabras clave: | AVES MARINAS; COLONIAS MIXTAS; CLEPTOPARASITISMO; GAVIOTINES; PATAGONIA |
| keywords: | SEABIRDS; MIXEDCOLONIES; KLEPTOPARASITISM; TEMS; PATAGONIA |
| Año: | 1997 |
| Volumen: | 014 |
| Número: | 04 |
| Titulo revista abreviado: | Hornero (en línea) |
| ISSN: | 1850-4884 |
| Formato: | |
| PDF: | https://bibliotecadigital.exactas.uba.ar/download/hornero/hornero_v014_n04_p256.pdf |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/hornero/document/hornero_v014_n04_p256 |
