IV Centenario mortal de Gonzalo Ximénez de Quesada, conquistador del Nuevo Reino de Granada (Colombia)

Fondo procedente de la donación Marcos-Vicen

Use of Nest Web Cameras and Citizen Science to Quantify Osprey Prey Delivery Rate and Nest Success

Ospreys (Pandion haliaetus) are obligate piscivores and their nesting success depends on sufficient amounts of fish delivered to the nests during the breeding season. Nests are considered successful when pairs raise a minimum of one young to fledging or near-fledging age. Through web cameras and online broadcasts of Osprey nests, citizen scientists quantified daily number of fish deliveries, nest survival, and nest success. We received and analyzed curated data (one to seven seasons, 2014–2020) from citizen scientist groups representing 19 Osprey web cameras from four countries in North America and Europe. We compared the average and the coefficient of variation of the number of fish delivered per day within the early breeding season between the failed and successful nests using a Wilcoxon rank-sum test. We also analyzed the effects of the average and the coefficient of variation of the number of fish delivered per day on the number of days of nest survival and whether a nest was successful or not using generalized linear mixed models. Successful and failed nests had significant differences in the average number of fish delivered per day and the failed nests had a higher variation in the number of fish deliveries. Moreover, the variation and average number of fish delivered per day had strong associations with whether a nest would fail or succeed. The global effort and manner in which these data were collected are novel and can further our understanding of this charismatic species. The combination of citizen science and technology is a powerful modern tool that can provide insights and has the potential to advance raptor research worldwide

Prontuario de ortografía de la lengua castellana

Copia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 2009-201

La escuela didáctica y la poesía política en Castilla durante el siglo XV : discursos leidos ante la Real Academia Española en la recepción pública

Copia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 2009-201

Resolución de la Real Academia de S. Fernando comunicada en 28 de Junio de 1802 sobre la consulta que le hizo acerca de la abolición de títulos de Maestros de Obras aprobadas con facultades limitadas por esta de S. Carlos... [Texto impreso]

Hay un ejemplar encuadernado con: Real Cedula con las nuevas ordenanzas que su magestad... y... su Real Junta General de Comercio, Moneda y Minas concede a la congregacion colegio y arte de Plateros de la ciudad... de Valencia... en 28 de Abril de 1761. (XVIII/3734)

Actas de las reuniones conjuntas de las comisiones académicas de Derecho Público y Derecho Privado

Abstract not availabl

Relación de los autores de los textos publicados en este número del Boletín

Abstract not availabl