Variación anual y estacional de las poblaciones de Ánade real (Anas platyrhynchos): relaciones con variables ambientales en humedales del Mediterráneo
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2024-09-19
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Jaén: Universidad de Jaén
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[ES] Los humedales han sufrido alteraciones que han afectado principalmente a la biodiversidad que
habita en ellos. Entre dicha biodiversidad destacan las aves acuáticas, en especial el ánade real
(Anas platyrhynchos, Linnaeus 1758), una especie muy abundante capaz de dar visibilidad a las
consecuencias negativas de la explotación de estos ecosistemas. Este estudio se realiza en 264
humedales de Andalucía mediante el censo de las poblaciones y las parejas reproductoras para
evaluar la relación de la especie con respecto a las variables ambientales durante un ciclo
estacional. Como resultado, se obtuvo que, por un lado, las poblaciones de ánade real han
sufrido un descenso, y, por otro lado, se han obtenido diferencias significativas para la relación
de la especie con la turbidez del agua, la vegetación sumergida, la temperatura y la profundidad,
además de mostrar que no tienen preferencia por ninguna tipología ni época del año.
[EN] Wetlands have suffered alterations that have mainly affected the biodiversity that lives in them. Among this biodiversity, aquatic birds stand out, especially the mallard (Anas platyrhynchos, Linnaeus 1758), a very abundant species capable of giving visibility to the negative consequences of the exploitation of these ecosystems. This study is carried out in 264 wetlands in Andalusia through a census of populations and breeding pairs to evaluate the relation of the species with respect to environmental variables during a seasonal cycle. As a result, it was obtained that, on the one hand, mallard populations have suffered a decline. On the other hand, significant differences have been obtained in the relation between the species and water turbidity, submerged vegetation, temperature and depth, in addition to showing that they have no preference for any type or time of year.
[EN] Wetlands have suffered alterations that have mainly affected the biodiversity that lives in them. Among this biodiversity, aquatic birds stand out, especially the mallard (Anas platyrhynchos, Linnaeus 1758), a very abundant species capable of giving visibility to the negative consequences of the exploitation of these ecosystems. This study is carried out in 264 wetlands in Andalusia through a census of populations and breeding pairs to evaluate the relation of the species with respect to environmental variables during a seasonal cycle. As a result, it was obtained that, on the one hand, mallard populations have suffered a decline. On the other hand, significant differences have been obtained in the relation between the species and water turbidity, submerged vegetation, temperature and depth, in addition to showing that they have no preference for any type or time of year.