Realm: Terrestrial
Climate: Temperate
Biome: Flooded grasslands and savannas
Central latitude: 36.950000
Central longitude: -6.340000
Duration: 50 years, from 1973 to 2023

26462 records

56 distinct species

Across the time series Anas platyrhynchos is the most frequently occurring species

Methods

This monitoring programme aims to obtain a monthly estimate of the total number of waterbirds that can be identified from the air present in the Guadalquivir Marshes, differentiating between species or groups of species and different areas. The aerial censuses are necessary due to the great area of the Guadalquivir Marshes and the difficult access to some areas during the flooding period. Censuses are carried from a small aircraft. Since 1979/1980 the aerial census has been conducted regularly. Usually monthly, in the morning, between the days 10 and 20 of each month. During each flight, an expert visually estimates the number of individuals in every chosen area. The short duration of the flights (1.5-3.5 hours) avoids double counting because birds tend to fly and land rapidly close by. The censused area (846.28 km2) is divided in four main parts with different hydrologic regimes and protection level: Parque Nacional de Doñana, Parque Natural Norte, Salinas de Bonanza and Veta la Palma. A total of 49 species have been registered in at least 5% of the censuses.

Citation(s)

@Online{BioTIME_cit460, Study_id = {709}, Citation_id = {460}, Author = {{Infraestructura Científica y Técnica Singular - Reserva Biológica de Doñana}}, Publisher = {Infraestructura Científica y Técnica Singular - Reserva Biológica de Doñana}, Title = {Censos Aéreos - ICTS-RBD}, Year = {2023}, Url = {https://censos-aereos.icts.ebd.csic.es/}, Language = {Catalan} }