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Gomphus flavipes
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| [Note Guidelines] Photographer's Note |
Gomphus flavipes / Rivierrombout / Yellow-Legged Dragonfly / Asiatische Keiljungfer.
This is a rare species in Europe(on the red-list!)Also on the list of the European Habitats Directive 92/43/EEC).
This is one of the species that had disappeared from the Netherlands and a few years ago returned spontaneously.
De yellow-legged dragonfly lives along clean, sandy rivers, where its larvae can be found in warm, slow-flowing water. The last sighting of the yellow-legged dragonfly was in 1902, until it was recorded again several years ago, along the Waal near Nijmegen. Since then the species has been sighted in various places along that river, but also along the Rijn and the IJssel. The return of this species is ascribed to the Dutch rivers becoming cleaner, plus the warmer climate.
The Yellow-legged dragonfly is found in the lower sections of a few large rivers in Western Europe,and is more common in Eastern Europe. The preferred habitat is shallow braided river streches with low current velocity. Shallow,sandy slopes between groins where current velocity is low are sub-optimal.The larvae live in sand or between fine particulate matter on the river bottom. They prefer warner places. The development from egg to adult lasts generally three years so that habitat conditions can not change too much over such a period.
In the first decades of the 20th century the species was rather common in Western Europe,but it has now become restricted to a few populations along the Loire and the Allier and a few rivers in Eastern Germany(Elbe and Spree). Currently recolonisation takes place from Central and Eastern Europe. The speciesexpands rapidly in the Netherlands after the first discovery in the river Waal. Within a few years,most of the large rivers and some smaller ones have been recolonised and the number of records is larger than in the beginning of the 20th century.
Source:http://www2.alterra.wur.nl/webdocs/internet/corporate/prodpubl/boekjesbrochures/ecnc_compleet.pdf
Harm |
bobcat08 has marked this note useful
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Hi Harm,
Capture wise an excellent capture. But one question is it hatching or eating? Anyway very good details. Thanks a lot for sharing.
Hallo Harm,
Dat is een raak shot. Precies tijdens de maaltijd van Hare Majesteit (-: . Goede info bijgevoegd. DOF, POV en BG zijn goed. Ik vind alleen de kleur wat flets. Je object is erg scherp. Groeten en een prettige dag. Bob
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