Management of a Dutch resident barnacle goose Branta leucopsis population: How can results from counts, ringing and hunting bag statistics be reconciled?
The resident Dutch Northern Delta barnacle geese Branta leucopsis population expanded steadily since birds first bred in 1982, increasing agricultural conflict. Derogation shooting has been used since 2005 to scare geese from sensitive crops and to reduce population size. Numbers almost doubled to c...
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Online Access: | https://pure.knaw.nl/portal/en/publications/95c42a92-5e9d-4338-b480-2f2df8ab2950 https://doi.org/10.1007/s13280-017-0900-3 https://hdl.handle.net/20.500.11755/95c42a92-5e9d-4338-b480-2f2df8ab2950 https://pure.knaw.nl/ws/files/4007977/6241_vanderJeugd.pdf |
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ftknawnlpublic:oai:pure.knaw.nl:publications/95c42a92-5e9d-4338-b480-2f2df8ab2950 2024-04-28T08:14:21+00:00 Management of a Dutch resident barnacle goose Branta leucopsis population: How can results from counts, ringing and hunting bag statistics be reconciled? van der Jeugd, H.P. Kwak, A. 2017 application/pdf https://pure.knaw.nl/portal/en/publications/95c42a92-5e9d-4338-b480-2f2df8ab2950 https://doi.org/10.1007/s13280-017-0900-3 https://hdl.handle.net/20.500.11755/95c42a92-5e9d-4338-b480-2f2df8ab2950 https://pure.knaw.nl/ws/files/4007977/6241_vanderJeugd.pdf eng eng https://pure.knaw.nl/portal/en/publications/95c42a92-5e9d-4338-b480-2f2df8ab2950 info:eu-repo/semantics/openAccess van der Jeugd , H P & Kwak , A 2017 , ' Management of a Dutch resident barnacle goose Branta leucopsis population: How can results from counts, ringing and hunting bag statistics be reconciled? ' , Ambio , vol. 46 , no. Supplement 2 , pp. 251-261 . https://doi.org/10.1007/s13280-017-0900-3 national article 2017 ftknawnlpublic https://doi.org/10.1007/s13280-017-0900-320.500.11755/95c42a92-5e9d-4338-b480-2f2df8ab2950 2024-04-04T17:06:13Z The resident Dutch Northern Delta barnacle geese Branta leucopsis population expanded steadily since birds first bred in 1982, increasing agricultural conflict. Derogation shooting has been used since 2005 to scare geese from sensitive crops and to reduce population size. Numbers almost doubled to ca. 28 000 individuals during 2007–2014, despite annual removal of 15–25% of geese and adult and juvenile survival rates of 79 and 67% (cf. natural survival of 96% for both age classes). Simple population modelling, using estimated annual survival values and fixed fecundity, predicted a moderate increase to 21 500 individuals in 2014. It is unclear whether current harvest levels are sufficient to halt population growth. Shooting may be less effective because of the disproportionate take of immature post-breeding and of individuals from other populations in winter. Discrepancies between counted and modelled abundance call for caution and improved effect monitoring of derogation shooting before harvest levels are increased further. Article in Journal/Newspaper Barnacle goose Branta leucopsis KNAW: Research Explorer (Royal Netherlands Academy of Arts and Sciences) Ambio 46 S2 251 261 |
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Open Polar |
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KNAW: Research Explorer (Royal Netherlands Academy of Arts and Sciences) |
op_collection_id |
ftknawnlpublic |
language |
English |
topic |
national |
spellingShingle |
national van der Jeugd, H.P. Kwak, A. Management of a Dutch resident barnacle goose Branta leucopsis population: How can results from counts, ringing and hunting bag statistics be reconciled? |
topic_facet |
national |
description |
The resident Dutch Northern Delta barnacle geese Branta leucopsis population expanded steadily since birds first bred in 1982, increasing agricultural conflict. Derogation shooting has been used since 2005 to scare geese from sensitive crops and to reduce population size. Numbers almost doubled to ca. 28 000 individuals during 2007–2014, despite annual removal of 15–25% of geese and adult and juvenile survival rates of 79 and 67% (cf. natural survival of 96% for both age classes). Simple population modelling, using estimated annual survival values and fixed fecundity, predicted a moderate increase to 21 500 individuals in 2014. It is unclear whether current harvest levels are sufficient to halt population growth. Shooting may be less effective because of the disproportionate take of immature post-breeding and of individuals from other populations in winter. Discrepancies between counted and modelled abundance call for caution and improved effect monitoring of derogation shooting before harvest levels are increased further. |
format |
Article in Journal/Newspaper |
author |
van der Jeugd, H.P. Kwak, A. |
author_facet |
van der Jeugd, H.P. Kwak, A. |
author_sort |
van der Jeugd, H.P. |
title |
Management of a Dutch resident barnacle goose Branta leucopsis population: How can results from counts, ringing and hunting bag statistics be reconciled? |
title_short |
Management of a Dutch resident barnacle goose Branta leucopsis population: How can results from counts, ringing and hunting bag statistics be reconciled? |
title_full |
Management of a Dutch resident barnacle goose Branta leucopsis population: How can results from counts, ringing and hunting bag statistics be reconciled? |
title_fullStr |
Management of a Dutch resident barnacle goose Branta leucopsis population: How can results from counts, ringing and hunting bag statistics be reconciled? |
title_full_unstemmed |
Management of a Dutch resident barnacle goose Branta leucopsis population: How can results from counts, ringing and hunting bag statistics be reconciled? |
title_sort |
management of a dutch resident barnacle goose branta leucopsis population: how can results from counts, ringing and hunting bag statistics be reconciled? |
publishDate |
2017 |
url |
https://pure.knaw.nl/portal/en/publications/95c42a92-5e9d-4338-b480-2f2df8ab2950 https://doi.org/10.1007/s13280-017-0900-3 https://hdl.handle.net/20.500.11755/95c42a92-5e9d-4338-b480-2f2df8ab2950 https://pure.knaw.nl/ws/files/4007977/6241_vanderJeugd.pdf |
genre |
Barnacle goose Branta leucopsis |
genre_facet |
Barnacle goose Branta leucopsis |
op_source |
van der Jeugd , H P & Kwak , A 2017 , ' Management of a Dutch resident barnacle goose Branta leucopsis population: How can results from counts, ringing and hunting bag statistics be reconciled? ' , Ambio , vol. 46 , no. Supplement 2 , pp. 251-261 . https://doi.org/10.1007/s13280-017-0900-3 |
op_relation |
https://pure.knaw.nl/portal/en/publications/95c42a92-5e9d-4338-b480-2f2df8ab2950 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s13280-017-0900-320.500.11755/95c42a92-5e9d-4338-b480-2f2df8ab2950 |
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46 |
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251 |
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261 |
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