Nature reports

Publisher: RAVON Foundation

Page 1 of 1 - 7 Results

Europese Boomkikker (Hyla arborea) (VOOR EENMALIG GEBRUIK)

Biology students from Leiden University have discovered two tree frog species in the Dutch coastal dunes that do not occur there naturally. A special DNA-technique revealed these potentially harmful tree frogs. Remarkable, but..

Continue reading 02 December 2022   1 jaar oud
Installatie van een aalgoot door de Zoological Society of London en vrijwilligers in de Thames region, hiermee kunnen alen geteld worden en kunnen ze de barrière passeren

Citizen Scientists around the world have been counting young eels in an International Eel Count. Today, at World Fish Migration Day, we present the preliminary outcomes which give insight in recruitment numbers and contribute to..

Continue reading 21 April 2018   6 jaar oud

The migration of European and American eel severely declined. Therefore a lot of effort is being made to develop knowledge and to take conservation measures. Citizen scientists play an important role in monitoring and helping eels..

Continue reading 12 April 2018   6 jaar oud
In het voorjaar ontwaken de kleinere mannen enkele weken eerder dan de grote vrouwen om zich voor te bereiden op de paring. Deze ringslangmannen kijken uit naar het eerste vrouwtje die ontwaakt uit de winterslaap

Last year, Rijkswaterstaat (part of the Dutch Ministry of Infrastructure and the Environment) carried out major repairs on some parts of the dykes of the former island of Marken in the IJsselmeer. Because this snake hibernates in..

Continue reading 26 May 2016   8 jaar oud
Gewone padden op trek

If all the amphibians that were helped over the road in the Netherlands were put nose to tail, there would be a queue of nearly 19 kilometres, roughly the distance between Amsterdam and Utrecht; an increase of 2.5 kilometres..

Continue reading 10 May 2016   8 jaar oud

In 2015, for the first time ever, the Adder was observed throughout the year in National Park De Meinweg, in the southern Dutch province of Limburg, even in December! This is now clear from recently processed data from the Snake..

Continue reading 12 April 2016   8 jaar oud

The new Red Data List for fish was published on January 1st 2016. RAVON carried out the analyses for species associated with fresh water. Of the more than 40 species that reproduce within the Netherlands, 19 appear on the new..

Continue reading 06 April 2016   8 jaar oud