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Drijvende eieren | 9 juni 2016 |
 | Danny Hitchcock is een promovendus van de Universiteit van Oslo. Vorig jaar ontmoette ik zijn begeleidster Katrin Borgå hier tijdens veldwerk. Samen met haar hebben we het plan gemaakt om door te gaan op eerder onderzoek van Steffen Hahn. Danny gaat kijken naar stabiele isotopen en vervuiling in de eieren. Daarvoor gaat hij 60 eieren verzamelen. Door de eieren te laten drijven probeert hij ook de broedduur te schatten. Naarmate het ei meer bebroed is, is er een grotere luchtkamer in het ei en gaat het in water overeind staan. |
| Kathrin Lang was zijn beveiliger en veldassistent en maakte deze foto. |
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