| White, G. L., and S. A. Temple. 2002. Dickcissels in Trinidad: numbers and impacts on rice crops. Department of Life Sciences, University of the West Indies, St. Augustine, Occasional Paper 11:194-198. ABSTRACT.--Trinidad is at the edge of the Dickcissel�s (Spiza americana) winter range, but Richard ffrench did pioneering research on their winter ecology in Trinidad in the 1960s. We add to information on Dickcissels in Trinidad by summarising observations of numbers and distribution over 1991-2002 and by estimating the impact that recent Dickcissel populations might have on Trinidad�s rice (Oryza sativa) crop, which we conclude to be minimal. RESUMEN.--Trinidad queda al borde de la distribuci�n invernal del Arrocero Americano (Spiza americana), pero Richard ffrench hizo estudios pioneros sobre su ecolog�a invernal en Trinidad durante la decada de los 1960s. Aumentamos la infor-maci�n que se posee sobre el Arrocero Americano en Trinidad en base a las observaci-ones sobre sus cantidades y distribuci�n durante 1991-2002 y estimamos el impacto que las actuales poblaciones del Arrocero Americano pueden tener sobre el cultivo de arroz (Oryza sativa) en la Trinidad, el cual concluimos es m�nimo. KEY WORDS.--crop damage, Dickcissel, ecology, Oryza sativa, rice crops, Spiza americana, Trinidad |
| ABSTRACT |
| STUDIES IN TRINIDAD AND TOBAGO ORNITHOLOGY HONOURING RICHARD FFRENCH Edited by Floyd E. Hayes and Stanley A. Temple Department of Life Sciences, University of the West Indies, St. Augustine, Occasional Paper 11, 2002 |