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Food and feeding of Little Tern on the Hooge Platen

Food and feeding of Little Tern on the Hooge Platen. November 16th 2012, Minsmere, Suffolk Rene Beijersbergen. Distribution and population. Coastal breeders : Common tern , Little tern and Kentish plover. In this contribution on Little Tern little attention for …. Floodings

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Food and feeding of Little Tern on the Hooge Platen

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  1. Food andfeeding of Little Tern on the Hooge Platen November 16th 2012, Minsmere, Suffolk Rene Beijersbergen

  2. Distribution andpopulation

  3. Coastalbreeders: Common tern, Little ternandKentishplover

  4. In thiscontribution on Little Ternlittle attention for…. Floodings Habitatselection Development of vegetation Competition Predation But I like to focus on food and feeding.

  5. Breedingandfeedingwithin short range

  6. Little tern’sprey

  7. Fish intake and clutch weight

  8. Clutch size in the period 1990 – 2010 was between 1.78 and 2.82

  9. Breedingbetween 2002 and 2010 Hooge Platen Foreshore Start egglayingbetweenMay 4th andMay 25th Average date May 14th Number of breeding pairs between 0 – 120 Average 36 pairs • Start egglayingbetweenMay 3rd andJune 4th • Average date May 19th • Number of breeding pairs between 0 – 250 • Average 112 pairs

  10. Litle terns have no choice but to breed close to the feeding site

  11. Are (Little) ternsflexiblewhen food is scarce……? • They are flexiblein the clutchsize • They are flexiblein the start of egglaying • Theyare flexiblein choosing a breedingsite

  12. Sandeelbecomesless abundant…

  13. Around the North Sea Sandeelbecomesless abundant…. • Global warming andclimate change • Industrial fisheries • Local dredging of harbours and shipping channels

  14. Sowhatcan we conclude….. • For succesfullbreeding Little Ternseemstobedependant on both 0-year SandeelandHerring • During pre-breeding, egglayingandbreedingtheydependmainly on Sandeel • Number of breeding pairs, clutchsizeand site depend on the availability of Sandeel • Terns are dependant on small fishfor the young chicks andbiggerfishforthemselves • On the continent the largestcolonies we find close to the seashore

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