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Broedresultaten van kokmeeuwen in Nederland in 1997 = Reproductive success of black-headed gulls in the Netherlands in 1997

Onderzoeksoutput: Bijdrage aan tijdschriftA2: Artikel in een tijdschrift met peer review, dat niet inbegrepen is in A1

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Broedresultaten van kokmeeuwen in Nederland in 1997 = Reproductive success of black-headed gulls in the Netherlands in 1997. / Stienen, Eric; Arts, F. A; De Boer, P; Beeren, W. J; Majoor, F.

In: Sula: tijdschrift van de Nederlandse Zeevogelgroep, Vol. 12, Nr. 1, 1998, blz. 1-11.

Onderzoeksoutput: Bijdrage aan tijdschriftA2: Artikel in een tijdschrift met peer review, dat niet inbegrepen is in A1

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@article{f7173006529141a9a2a0a09163f27827,
title = "Broedresultaten van kokmeeuwen in Nederland in 1997 = Reproductive success of black-headed gulls in the Netherlands in 1997",
abstract = "The Black-headed Gull population in The Netherlands, as in other parts of Europe, has seriously declined since the 1980s. The decline has been noted both at coastal and mainland breeding sites. The reasons for the general decline are not known. Therefore a monitoring programme was established to measure breeding results of Black-headed Gulls in six Dutch colonies in 1997. Remarkable differences were found in hatching success and breeding success. Hatching success was high (75- 90{\%}) in the three northern colonies situated in or near the Wadden Sea, whereas in all other colonies hatching success was extremely low (0-43{\%}). Most eggs were lost through flooding, trampling by geese, depredation or nest desertion. Only in the colony at Griend, fledging success was high (66{\%}) and some young fledged in Julianapolder. In all other colonies, most chicks died of starvation or depredation. In those colonies the food mainly consisted of marine prey (e.g. fish, shrimps and lugworms), whereas in the other colonies the chicks were fed with a large proportion of insects and other invertebrates.",
author = "Eric Stienen and Arts, {F. A} and {De Boer}, P and Beeren, {W. J} and F Majoor",
year = "1998",
language = "Nederlands",
volume = "12",
pages = "1--11",
journal = "Sula: tijdschrift van de Nederlandse Zeevogelgroep",
issn = "0926-132X",
publisher = "Nederlandse Zeevogelgroep",
number = "1",

}

RIS

TY - JOUR

T1 - Broedresultaten van kokmeeuwen in Nederland in 1997 = Reproductive success of black-headed gulls in the Netherlands in 1997

AU - Stienen, Eric

AU - Arts, F. A

AU - De Boer, P

AU - Beeren, W. J

AU - Majoor, F

PY - 1998

Y1 - 1998

N2 - The Black-headed Gull population in The Netherlands, as in other parts of Europe, has seriously declined since the 1980s. The decline has been noted both at coastal and mainland breeding sites. The reasons for the general decline are not known. Therefore a monitoring programme was established to measure breeding results of Black-headed Gulls in six Dutch colonies in 1997. Remarkable differences were found in hatching success and breeding success. Hatching success was high (75- 90%) in the three northern colonies situated in or near the Wadden Sea, whereas in all other colonies hatching success was extremely low (0-43%). Most eggs were lost through flooding, trampling by geese, depredation or nest desertion. Only in the colony at Griend, fledging success was high (66%) and some young fledged in Julianapolder. In all other colonies, most chicks died of starvation or depredation. In those colonies the food mainly consisted of marine prey (e.g. fish, shrimps and lugworms), whereas in the other colonies the chicks were fed with a large proportion of insects and other invertebrates.

AB - The Black-headed Gull population in The Netherlands, as in other parts of Europe, has seriously declined since the 1980s. The decline has been noted both at coastal and mainland breeding sites. The reasons for the general decline are not known. Therefore a monitoring programme was established to measure breeding results of Black-headed Gulls in six Dutch colonies in 1997. Remarkable differences were found in hatching success and breeding success. Hatching success was high (75- 90%) in the three northern colonies situated in or near the Wadden Sea, whereas in all other colonies hatching success was extremely low (0-43%). Most eggs were lost through flooding, trampling by geese, depredation or nest desertion. Only in the colony at Griend, fledging success was high (66%) and some young fledged in Julianapolder. In all other colonies, most chicks died of starvation or depredation. In those colonies the food mainly consisted of marine prey (e.g. fish, shrimps and lugworms), whereas in the other colonies the chicks were fed with a large proportion of insects and other invertebrates.

M3 - A2: Artikel in een tijdschrift met peer review, dat niet inbegrepen is in A1

VL - 12

SP - 1

EP - 11

JO - Sula: tijdschrift van de Nederlandse Zeevogelgroep

JF - Sula: tijdschrift van de Nederlandse Zeevogelgroep

SN - 0926-132X

IS - 1

ER -

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