{"id":38530,"date":"2018-12-12T15:48:35","date_gmt":"2018-12-12T14:48:35","guid":{"rendered":"https:\/\/npolar.no\/projects\/svalbard-rock-ptarmigan-monitoring\/"},"modified":"2023-01-27T13:24:20","modified_gmt":"2023-01-27T12:24:20","slug":"svalbard-rock-ptarmigan-monitoring","status":"publish","type":"page","link":"https:\/\/npolar.no\/en\/projects\/svalbard-rock-ptarmigan-monitoring\/","title":{"rendered":"Population monitoring of Svalbard rock ptarmigan"},"content":{"rendered":"<section  class='av_textblock_section av-jplai63u-8860627f1582aec3ef7cc7ad32782774 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_16630\" style=\"width: 1010px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-16630\" class=\"size-full wp-image-16630\" src=\"https:\/\/npolar.no\/wp-content\/uploads\/2018\/12\/svalbardrype-stegg-hone.jpg\" alt=\"two white birds on a snowy terrain\" width=\"1000\" height=\"669\" srcset=\"https:\/\/npolar.no\/wp-content\/uploads\/2018\/12\/svalbardrype-stegg-hone.jpg 1000w, https:\/\/npolar.no\/wp-content\/uploads\/2018\/12\/svalbardrype-stegg-hone-450x301.jpg 450w, https:\/\/npolar.no\/wp-content\/uploads\/2018\/12\/svalbardrype-stegg-hone-300x201.jpg 300w, https:\/\/npolar.no\/wp-content\/uploads\/2018\/12\/svalbardrype-stegg-hone-768x514.jpg 768w, https:\/\/npolar.no\/wp-content\/uploads\/2018\/12\/svalbardrype-stegg-hone-705x472.jpg 705w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><p id=\"caption-attachment-16630\" class=\"wp-caption-text\">Svalbard rock ptarmigans: Difference in male (closest) and female birds. <span class=\"credit\">Photo: Silje-Kristin Jensen \/ Norwegian Polar Institute<\/span><\/p><\/div>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1tkwn1w-0838c643044c6dc0e2b1d87578cb55e8\">\n.flex_column.av-1tkwn1w-0838c643044c6dc0e2b1d87578cb55e8{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-1tkwn1w-0838c643044c6dc0e2b1d87578cb55e8 av_one_full  avia-builder-el-1  el_after_av_textblock  el_before_av_two_third  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jpla72vi-7ff272673dd24329d5b90411945b01ff '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_16633\" style=\"width: 505px\" class=\"wp-caption alignright\"><a href=\"https:\/\/npolar.no\/wp-content\/uploads\/2018\/12\/svalbardrype-overvaking-punkter.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-16633\" class=\"wp-image-16633 size-portfolio\" src=\"https:\/\/npolar.no\/wp-content\/uploads\/2018\/12\/svalbardrype-overvaking-punkter-495x400.jpg\" alt=\"map\" width=\"495\" height=\"400\" srcset=\"https:\/\/npolar.no\/wp-content\/uploads\/2018\/12\/svalbardrype-overvaking-punkter-495x400.jpg 495w, https:\/\/npolar.no\/wp-content\/uploads\/2018\/12\/svalbardrype-overvaking-punkter-845x684.jpg 845w\" sizes=\"auto, (max-width: 495px) 100vw, 495px\" \/><\/a><p id=\"caption-attachment-16633\" class=\"wp-caption-text\">Locations for monitoring Svalbard rock ptarmigans.<br \/>Map: Norwegian Polar Institute<\/p><\/div>\n<p>Our study area is approximately 1000km<sup>2<\/sup> and is located on Nordenski\u00f6ld Land and Sabine Land in Adventdalen with side valleys De Geerdalen, Eskerdalen and Sassendalen. By using the point transect sampling design methodology we survey calling territorial males at approximately 145 fixed points in the terrain (see map) that we visit three times between 1st and 30th of April. From the survey points we record the number of males that we see and\/or hear, then we measure the radial distance from the observer to the male seen on the ground by using distance binoculars.<\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-nyj0wk-47f40c100b3238a94ee228528ca20ac4\">\n.flex_column.av-nyj0wk-47f40c100b3238a94ee228528ca20ac4{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-nyj0wk-47f40c100b3238a94ee228528ca20ac4 av_two_third  avia-builder-el-3  el_after_av_one_full  el_before_av_one_third  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jpla7ogl-e8fd6739e67fce936f1cb481b0b98fba '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>A sure sign of spring for people living in Svalbard is the flocks of migrating Svalbard rock ptarmigan that can be seen around Longyearbyen during March. It is the rock ptarmigan males returning from wintering grounds to breeding areas, while the female ptarmigan arrives a bit later. The Svalbard rock ptarmigan uses separate habitats during winter and breeding season.<\/p>\n<p>Shortly after arrival at the breeding grounds the males establish a territory. A territory is a stationary area that one male actively defends against other males by showing territorial behavior. The cocks show territorial display by postures, by showing the red comb over the eye, and by calls (the characteristic &#8220;AARR-aa-ka-ka&#8221;). The males also show off by lifting their tail feathers and making calls in aerial chases (up to 70\u201380 metres above the ground). Direct and aggressive fights do occur between two or more adult male ptarmigans. Territories are slightly larger than a football field and can start from the valley bottom and extend up the hillside.<\/p>\n<\/div><\/section><\/div><\/p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-186yvjo-21f65ec591773a159279aadaa89cd197\">\n.flex_column.av-186yvjo-21f65ec591773a159279aadaa89cd197{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-186yvjo-21f65ec591773a159279aadaa89cd197 av_one_third  avia-builder-el-5  el_after_av_two_third  avia-builder-el-last  flex_column_div av-zero-column-padding  column-top-margin'     ><section class=\"av_textblock_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div role='complementary' class='avia_textblock NP-factsheet-enfold no '  style=' '  itemprop=\"text\" ><p class='title'>See also<\/p><div class='hsep-relevantlinks' ><\/div><div class='NP-factsheet-content'><p><a href=\"https:\/\/npolar.no\/en\/species\/svalbard-rock-ptarmigan\/\">Svalbard rock ptarmigan (<em>Lagopus muta hyperborea<\/em>)<\/a><\/p>\n<\/div><\/div><div tabindex='0' role='button' class=' NP-factToggle' style='text-align:center;'><i class='fas fa-angle-down fa-2x'><\/i><\/div><\/section><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":20,"featured_media":38345,"parent":5377,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-projectdetail.php","meta":{"_acf_changed":false,"footnotes":""},"tags":[],"emne":[],"class_list":["post-38530","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/pages\/38530","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/comments?post=38530"}],"version-history":[{"count":2,"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/pages\/38530\/revisions"}],"predecessor-version":[{"id":38537,"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/pages\/38530\/revisions\/38537"}],"up":[{"embeddable":true,"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/pages\/5377"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/media\/38345"}],"wp:attachment":[{"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/media?parent=38530"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/tags?post=38530"},{"taxonomy":"emne","embeddable":true,"href":"https:\/\/npolar.no\/en\/wp-json\/wp\/v2\/emne?post=38530"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}