Integrated management of invasive geese populations in an international context:a case study in Belgium & The Netherlands
Impact scoring for established non-native birds in Europe has shown Canada goose (Branta canadensis) to have the highest environmental, economic (agricultural damage) and social impact. Among the ecological effects are overgrazing, fouling, trampling of vegetation such as reed beds and meadows, biot...
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Format: | Conference Object |
Language: | English |
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2014
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Online Access: | https://data.inbo.be/pureportal/en/publications/integrated-management-of-invasive-geese-populations-in-an-international-context(06c054f9-47b0-43b3-a387-4c08e4cbadf1).html https://data.inbo.be/purews/files/6391140/Adriaens_etal_2014_IntegratedManagementInvasiveGeesePopulationsInternationalContext.pdf |
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openpolar |
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Open Polar |
collection |
Research Institute Nature and Forest: Research outputs |
op_collection_id |
ftonapublicatio |
language |
English |
topic |
/dk/atira/pure/thematic/inbo_th_00131 Nature management /dk/atira/pure/thematic/inbo_th_00137 Fauna management /dk/atira/pure/thematic/inbo_th_00149 Invasive species (management) /dk/atira/pure/thematic/inbo_th_00143 Damage management (management) /dk/atira/pure/thematic/inbo_th_00025 Fauna /dk/atira/pure/thematic/inbo_th_00104 Hunting (society) /dk/atira/pure/taxonomic/eendvogels_anseriformes_ waterfowl (Anseriformes) Canadese gans brandgans boerengans grauwe gans greylag goose Canada goose feral goose barnacle goose Egyptian goose nijlgans /dk/atira/pure/policy/biodiversiteitsbeleid biodiversity policy /dk/atira/pure/policy/soortgericht_natuurbeheer species directed nature management /dk/atira/pure/policy/natuurbeheer /dk/atira/pure/geographic/vlaanderen Flanders /dk/atira/pure/geographic/west_vlaanderen West Flanders /dk/atira/pure/geographic/oost_vlaanderen East Flanders /dk/atira/pure/geographic/zeeland Zeeland /dk/atira/pure/geographic/nederland Netherlands |
spellingShingle |
/dk/atira/pure/thematic/inbo_th_00131 Nature management /dk/atira/pure/thematic/inbo_th_00137 Fauna management /dk/atira/pure/thematic/inbo_th_00149 Invasive species (management) /dk/atira/pure/thematic/inbo_th_00143 Damage management (management) /dk/atira/pure/thematic/inbo_th_00025 Fauna /dk/atira/pure/thematic/inbo_th_00104 Hunting (society) /dk/atira/pure/taxonomic/eendvogels_anseriformes_ waterfowl (Anseriformes) Canadese gans brandgans boerengans grauwe gans greylag goose Canada goose feral goose barnacle goose Egyptian goose nijlgans /dk/atira/pure/policy/biodiversiteitsbeleid biodiversity policy /dk/atira/pure/policy/soortgericht_natuurbeheer species directed nature management /dk/atira/pure/policy/natuurbeheer /dk/atira/pure/geographic/vlaanderen Flanders /dk/atira/pure/geographic/west_vlaanderen West Flanders /dk/atira/pure/geographic/oost_vlaanderen East Flanders /dk/atira/pure/geographic/zeeland Zeeland /dk/atira/pure/geographic/nederland Netherlands Adriaens, Tim Huysentruyt, Frank Devisscher, Sander Devos, Koen Casaer, Jim Integrated management of invasive geese populations in an international context:a case study in Belgium & The Netherlands |
topic_facet |
/dk/atira/pure/thematic/inbo_th_00131 Nature management /dk/atira/pure/thematic/inbo_th_00137 Fauna management /dk/atira/pure/thematic/inbo_th_00149 Invasive species (management) /dk/atira/pure/thematic/inbo_th_00143 Damage management (management) /dk/atira/pure/thematic/inbo_th_00025 Fauna /dk/atira/pure/thematic/inbo_th_00104 Hunting (society) /dk/atira/pure/taxonomic/eendvogels_anseriformes_ waterfowl (Anseriformes) Canadese gans brandgans boerengans grauwe gans greylag goose Canada goose feral goose barnacle goose Egyptian goose nijlgans /dk/atira/pure/policy/biodiversiteitsbeleid biodiversity policy /dk/atira/pure/policy/soortgericht_natuurbeheer species directed nature management /dk/atira/pure/policy/natuurbeheer /dk/atira/pure/geographic/vlaanderen Flanders /dk/atira/pure/geographic/west_vlaanderen West Flanders /dk/atira/pure/geographic/oost_vlaanderen East Flanders /dk/atira/pure/geographic/zeeland Zeeland /dk/atira/pure/geographic/nederland Netherlands |
description |
Impact scoring for established non-native birds in Europe has shown Canada goose (Branta canadensis) to have the highest environmental, economic (agricultural damage) and social impact. Among the ecological effects are overgrazing, fouling, trampling of vegetation such as reed beds and meadows, bioturbiation of oligitrophic fens and pathogen transmission. Management of invasive geese in the region (western Flanders, eastern Flanders, Zeeuws-Vlaanderen) was, until recently, mainly done by egg pricking and hunting. Within the framework of the EU co-funded Interreg projects Invexo and RINSE, the coordination of egg pricking and hunting was enhanced and additional moult captures (n=131) were performed on a larger cross-border scale. Moult captures were very successful for Canada geese, with a total of 7829 caught between 2010 and 2013. Greylag geese (Anser anser), although comparable in density, tended to move away from catching sites during the moulting season. In relation to density, catch success for feral goose (Anser anser f. domestica) was high. Barnacle geese (Branta leucopsis) moult later and were therefore only caught in very low numbers. The reported numbers of Canada geese culled by hunters also increased in the same period with over 7000 birds shot per season. The overall impact of the combined management efforts was assessed by annual simultaneous counts of the geese populations in the region using a fixed sample of counting areas. Trends in the average number of geese per municipality and per year were modelled using gee-GLMs. This showed a significant decrease in the number of Canada and feral goose since the beginning of the project. In east-Flanders, where moult captures were applied most intensively, a significant yearly decrease was noted. Here, the modelled decline was in line with the trend in the absolute numbers of Canada geese which showed a 40 % reduction since 2010. For the species caught in high numbers, the impact was significant over four years, and related to catch effort. Although this approach suggests a link between moult captures and population numbers it also assumes other management efforts to be evenly applied over the project area, which was not the case. When analysed on a larger geographical scale, the number of geese in the entire area hardly decreased in the last year. Recent research indicates that Canada geese disperse over large distances within Europe, blurring effects of a local action over the years. Goose captures were performed within the EU co-funded Interreg Invexo (www.invexo.eu) (2010-2012) and the Interreg 2Seas project RINSE (www.rinse-europe.eu) (2012-2014), which seeks to improve awareness of the threats posed by INNS, and the methods to address them. Future work will be to upscale management and implement adaptive management backed by population models and thorough monitoring. This requires continued investment in prevention, awareness raising and generating public support. At short term, if the result of these actions is to be maintained after the Interreg project RINSE finishes, there is an urgent need for institutional coordination, formalised cooperation between stakeholders and structural funding of this initiative. |
format |
Conference Object |
author |
Adriaens, Tim Huysentruyt, Frank Devisscher, Sander Devos, Koen Casaer, Jim |
author_facet |
Adriaens, Tim Huysentruyt, Frank Devisscher, Sander Devos, Koen Casaer, Jim |
author_sort |
Adriaens, Tim |
title |
Integrated management of invasive geese populations in an international context:a case study in Belgium & The Netherlands |
title_short |
Integrated management of invasive geese populations in an international context:a case study in Belgium & The Netherlands |
title_full |
Integrated management of invasive geese populations in an international context:a case study in Belgium & The Netherlands |
title_fullStr |
Integrated management of invasive geese populations in an international context:a case study in Belgium & The Netherlands |
title_full_unstemmed |
Integrated management of invasive geese populations in an international context:a case study in Belgium & The Netherlands |
title_sort |
integrated management of invasive geese populations in an international context:a case study in belgium & the netherlands |
publishDate |
2014 |
url |
https://data.inbo.be/pureportal/en/publications/integrated-management-of-invasive-geese-populations-in-an-international-context(06c054f9-47b0-43b3-a387-4c08e4cbadf1).html https://data.inbo.be/purews/files/6391140/Adriaens_etal_2014_IntegratedManagementInvasiveGeesePopulationsInternationalContext.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Barnacle goose Branta canadensis Branta leucopsis Canada Goose |
genre_facet |
Barnacle goose Branta canadensis Branta leucopsis Canada Goose |
op_source |
Adriaens , T , Huysentruyt , F , Devisscher , S , Devos , K & Casaer , J 2014 , ' Integrated management of invasive geese populations in an international context : a case study in Belgium & The Netherlands ' . |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766371099734441984 |
spelling |
ftonapublicatio:oai:pure.atira.dk:publications/06c054f9-47b0-43b3-a387-4c08e4cbadf1 2023-05-15T15:39:25+02:00 Integrated management of invasive geese populations in an international context:a case study in Belgium & The Netherlands Geïntegreerd beheer van invasieve ganzen in een internationale context:een case studie in België & Nederland Adriaens, Tim Huysentruyt, Frank Devisscher, Sander Devos, Koen Casaer, Jim 2014-04-02 application/pdf https://data.inbo.be/pureportal/en/publications/integrated-management-of-invasive-geese-populations-in-an-international-context(06c054f9-47b0-43b3-a387-4c08e4cbadf1).html https://data.inbo.be/purews/files/6391140/Adriaens_etal_2014_IntegratedManagementInvasiveGeesePopulationsInternationalContext.pdf eng eng info:eu-repo/semantics/openAccess Adriaens , T , Huysentruyt , F , Devisscher , S , Devos , K & Casaer , J 2014 , ' Integrated management of invasive geese populations in an international context : a case study in Belgium & The Netherlands ' . /dk/atira/pure/thematic/inbo_th_00131 Nature management /dk/atira/pure/thematic/inbo_th_00137 Fauna management /dk/atira/pure/thematic/inbo_th_00149 Invasive species (management) /dk/atira/pure/thematic/inbo_th_00143 Damage management (management) /dk/atira/pure/thematic/inbo_th_00025 Fauna /dk/atira/pure/thematic/inbo_th_00104 Hunting (society) /dk/atira/pure/taxonomic/eendvogels_anseriformes_ waterfowl (Anseriformes) Canadese gans brandgans boerengans grauwe gans greylag goose Canada goose feral goose barnacle goose Egyptian goose nijlgans /dk/atira/pure/policy/biodiversiteitsbeleid biodiversity policy /dk/atira/pure/policy/soortgericht_natuurbeheer species directed nature management /dk/atira/pure/policy/natuurbeheer /dk/atira/pure/geographic/vlaanderen Flanders /dk/atira/pure/geographic/west_vlaanderen West Flanders /dk/atira/pure/geographic/oost_vlaanderen East Flanders /dk/atira/pure/geographic/zeeland Zeeland /dk/atira/pure/geographic/nederland Netherlands conferenceObject 2014 ftonapublicatio 2016-04-04T12:56:52Z Impact scoring for established non-native birds in Europe has shown Canada goose (Branta canadensis) to have the highest environmental, economic (agricultural damage) and social impact. Among the ecological effects are overgrazing, fouling, trampling of vegetation such as reed beds and meadows, bioturbiation of oligitrophic fens and pathogen transmission. Management of invasive geese in the region (western Flanders, eastern Flanders, Zeeuws-Vlaanderen) was, until recently, mainly done by egg pricking and hunting. Within the framework of the EU co-funded Interreg projects Invexo and RINSE, the coordination of egg pricking and hunting was enhanced and additional moult captures (n=131) were performed on a larger cross-border scale. Moult captures were very successful for Canada geese, with a total of 7829 caught between 2010 and 2013. Greylag geese (Anser anser), although comparable in density, tended to move away from catching sites during the moulting season. In relation to density, catch success for feral goose (Anser anser f. domestica) was high. Barnacle geese (Branta leucopsis) moult later and were therefore only caught in very low numbers. The reported numbers of Canada geese culled by hunters also increased in the same period with over 7000 birds shot per season. The overall impact of the combined management efforts was assessed by annual simultaneous counts of the geese populations in the region using a fixed sample of counting areas. Trends in the average number of geese per municipality and per year were modelled using gee-GLMs. This showed a significant decrease in the number of Canada and feral goose since the beginning of the project. In east-Flanders, where moult captures were applied most intensively, a significant yearly decrease was noted. Here, the modelled decline was in line with the trend in the absolute numbers of Canada geese which showed a 40 % reduction since 2010. For the species caught in high numbers, the impact was significant over four years, and related to catch effort. Although this approach suggests a link between moult captures and population numbers it also assumes other management efforts to be evenly applied over the project area, which was not the case. When analysed on a larger geographical scale, the number of geese in the entire area hardly decreased in the last year. Recent research indicates that Canada geese disperse over large distances within Europe, blurring effects of a local action over the years. Goose captures were performed within the EU co-funded Interreg Invexo (www.invexo.eu) (2010-2012) and the Interreg 2Seas project RINSE (www.rinse-europe.eu) (2012-2014), which seeks to improve awareness of the threats posed by INNS, and the methods to address them. Future work will be to upscale management and implement adaptive management backed by population models and thorough monitoring. This requires continued investment in prevention, awareness raising and generating public support. At short term, if the result of these actions is to be maintained after the Interreg project RINSE finishes, there is an urgent need for institutional coordination, formalised cooperation between stakeholders and structural funding of this initiative. Conference Object Barnacle goose Branta canadensis Branta leucopsis Canada Goose Research Institute Nature and Forest: Research outputs Canada |