{"id":7213,"date":"2021-11-24T15:01:09","date_gmt":"2021-11-24T14:01:09","guid":{"rendered":"https:\/\/seapop.no\/?page_id=7213"},"modified":"2021-11-24T15:01:11","modified_gmt":"2021-11-24T14:01:11","slug":"habitat-use-during-breeding","status":"publish","type":"page","link":"https:\/\/seapop.no\/en\/habitat-use-during-breeding\/","title":{"rendered":"Habitat use during the breeding season"},"content":{"rendered":"\n
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Aims and applications <\/h2>\n\n\n\n

The data from the GPS logging of breeding birds enables us to map in detail which areas are the most important for key activities when the birds are away from the nest, such as foraging, resting and preening. It also allows us to calculate the birds\u2019 time budgets and energy expenditure. A principal aim is to explore the spatial dynamics of their movements both within and between seasons, and how this can explain key parameters such as diets, chick growth and breeding success. By comparing similar information across different sites and species, we will be able to explain in more general terms which environmental factors are key drivers of the distribution of seabirds around the colonies and how they affect their productivity. GPS logging thus not only delivers very important knowledge for a wide range of management issues, but also helps to build a more fundamental ecological understanding of how seabirds exploit the areas around the colonies, and how this varies over time. This adds some much needed pieces to the big puzzle of explaining what are the main threats to the seabirds in Norwegian waters.<\/p>\n\n\n\n

Techniques<\/h2>\n\n\n\n

SEAPOP uses a wide range of GPS loggers, with the choice of model depending on study species, research questions and colony accessibility. GPS loggers are fastened to the tail or back of the birds using tape, cable ties and\/or glue, and are removed (or lost) after a given period of time, usually within a few days or weeks. <\/p>\n<\/div>\n\n\n\n

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\"Black-legged
On black-legged kittiwakes, GPS tags are fixed to the tail feathers using tape. The tagged birds get a little paint on their heads to ease recognition, and the loggers are removed 5-7 days after deployment.
Photo \u00a9 Signe Christensen-Dalsgaard<\/em><\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n

Selected species and sites<\/h2>\n\n\n\n

The table below lists the number of years we have tracked different species using GPS loggers at different locations. The localities are described in links, and we present example maps for a few species\/localities showing kernel densities of the species around the breeding site (click on the species name to see the map).<\/p>\n\n\n\n

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Species<\/strong><\/td>Locality<\/strong><\/td>No. of years tracking<\/strong><\/td>Contact person(s)<\/strong><\/td><\/tr>
European shag<\/td>Horn\u00f8ya<\/a><\/td>2<\/td>S. Christensen-Dalsgaard<\/a><\/td><\/tr>
European shag<\/td>R\u00f8st<\/a><\/td>4<\/td>T. Anker-Nilssen<\/a><\/td><\/tr>
European shag<\/a><\/td>Sklinna<\/a><\/td>12<\/td>N. Dehnhard<\/a> & S.-H. Lorentsen<\/a><\/td><\/tr>
European shag<\/td>Runde<\/a><\/td>3<\/td>S. Christensen-Dalsgaard<\/a>  & S.-H. Lorentsen<\/a><\/td><\/tr>
European shag<\/a><\/td>Jarstein<\/a><\/td>3<\/td>S. Christensen-Dalsgaard<\/a><\/td><\/tr>
Black-legged kittiwake<\/td>Alkefjellet\/Hinlopen<\/a><\/td>1<\/td>S. Descamps<\/a><\/td><\/tr>
Black-legged kittiwake<\/td>Kongsfjorden<\/a><\/td>6<\/td>S. Descamps<\/a><\/td><\/tr>
Black-legged kittiwake<\/a><\/td>Isfjorden<\/a><\/td>6<\/td>S. Descamps<\/a><\/td><\/tr>
Black-legged kittiwake<\/td>Bj\u00f8rn\u00f8ya<\/a><\/td>6<\/td>H. Str\u00f8m<\/a><\/td><\/tr>
Black-legged kittiwake<\/td>Horn\u00f8ya<\/a><\/td>3<\/td>S. Christensen-Dalsgaard<\/a> & T. Reiertsen<\/a><\/td><\/tr>
Black-legged kittiwake<\/td>Vard\u00f8<\/td>1<\/td>T. Reiertsen<\/a> & K. E. Erikstad<\/a> <\/td><\/tr>
Black-legged kittiwake<\/a><\/td>R\u00f8st<\/a><\/td>5<\/td>T. Anker-Nilssen<\/a><\/td><\/tr>
Black-legged kittiwake<\/td>Anda<\/a><\/td>9<\/td>S. Christensen-Dalsgaard<\/a><\/td><\/tr>
Black-legged kittiwake<\/td>S\u00f8r-Gj\u00e6slingan<\/a><\/td>4<\/td>S. Christensen-Dalsgaard<\/a>  & S.-H. Lorentsen<\/a><\/td><\/tr>
Black-legged kittiwake<\/td>Heidrun<\/td>1<\/td>S. Christensen-Dalsgaard<\/a><\/td><\/tr>
Ivory Gull<\/td>Barents\u00f8ya<\/td>2<\/td>H. Str\u00f8m<\/a> <\/td><\/tr>
Common guillemot<\/td>Bj\u00f8rn\u00f8ya<\/a> <\/td>6<\/td>H. Str\u00f8m<\/a> <\/td><\/tr>
Common guillemot<\/a><\/td>Horn\u00f8ya<\/a><\/td>9<\/td>T. Reiertsen<\/a> & K. E. Erikstad<\/a> <\/td><\/tr>
Common guillemot<\/td>Hjelms\u00f8ya<\/a><\/td>5<\/td>G. H. Systad<\/a><\/td><\/tr>
Common guillemot<\/a><\/td>Sklinna<\/a><\/td>3<\/td>N. Dehnhard<\/a> & S.-H. Lorentsen<\/a><\/td><\/tr>
Br\u00fcnnich’s guillemot<\/td>Alkefjellet\/Hinlopen<\/a><\/td>2<\/td>S. Descamps<\/a><\/td><\/tr>
Br\u00fcnnich’s guillemot<\/td>Kongsfjorden<\/a><\/td>2<\/td>S. Descamps<\/a><\/td><\/tr>
Br\u00fcnnich’s guillemot<\/td>Isfjorden<\/a><\/td>4<\/td>S. Descamps<\/a><\/td><\/tr>
Br\u00fcnnich’s guillemot<\/td>Bj\u00f8rn\u00f8ya<\/a><\/td>6<\/td>H. Str\u00f8m<\/a> <\/td><\/tr>
Razorbill<\/td>Hjelms\u00f8ya<\/a><\/td>2<\/td>G. H. Systad<\/a><\/td><\/tr>
Atlantic puffin<\/td>R\u00f8st<\/a><\/td>1<\/td>T. Anker-Nilssen<\/a> & Annette Fayet<\/a><\/td><\/tr>
Atlantic puffin<\/td>Hjelms\u00f8ya<\/a><\/td>1<\/td>G. H. Systad<\/a><\/td><\/tr>
Atlantic puffin<\/td>Runde<\/a><\/td>2<\/td>S. Christensen-Dalsgaard<\/a><\/td><\/tr>
Black guillemot<\/td>R\u00f8st<\/a><\/td>2<\/td>T. Anker-Nilssen<\/a><\/td><\/tr>
Black guillemot<\/a><\/td>Sklinna<\/a><\/td>3<\/td>N. Dehnhard<\/a> & S.-H. Lorentsen<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
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Aims and applications The data from the GPS logging of breeding birds enables us to … <\/p>\n

Les videre \u00abHabitat use during the breeding season\u00bb<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","footnotes":""},"class_list":["post-7213","page","type-page","status-publish"],"acf":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"default":false,"square":false},"uagb_author_info":{"display_name":"Erlend Lorentzen","author_link":"https:\/\/seapop.no\/en\/author\/erlend\/"},"uagb_comment_info":0,"uagb_excerpt":"Aims and applications The data from the GPS logging of breeding birds enables us to … Les videre \u00abHabitat use during the breeding season\u00bb","_links":{"self":[{"href":"https:\/\/seapop.no\/en\/wp-json\/wp\/v2\/pages\/7213","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/seapop.no\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/seapop.no\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/seapop.no\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/seapop.no\/en\/wp-json\/wp\/v2\/comments?post=7213"}],"version-history":[{"count":3,"href":"https:\/\/seapop.no\/en\/wp-json\/wp\/v2\/pages\/7213\/revisions"}],"predecessor-version":[{"id":7405,"href":"https:\/\/seapop.no\/en\/wp-json\/wp\/v2\/pages\/7213\/revisions\/7405"}],"wp:attachment":[{"href":"https:\/\/seapop.no\/en\/wp-json\/wp\/v2\/media?parent=7213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}