{"id":6272,"date":"2026-10-19T09:48:42","date_gmt":"2026-10-19T09:48:42","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-liffraedi-aldis-erna-palsdottir\/"},"modified":"2026-10-19T09:48:42","modified_gmt":"2026-10-19T09:48:42","slug":"doktorsvorn-i-liffraedi-aldis-erna-palsdottir","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-liffraedi-aldis-erna-palsdottir\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed l\u00edffr\u00e6\u00f0i \u2013 Ald\u00eds Erna P\u00e1lsd\u00f3ttir"},"content":{"rendered":"<div class=\"field-items\">\n<div class=\"field-item even\" property=\"content:encoded\">\n<p><a href=\"https:\/\/livestream.com\/hi\">Streymi<\/a><\/p>\n<p><strong>Doktorsefni:<\/strong>\u00a0Ald\u00eds Erna P\u00e1lsd\u00f3ttir<\/p>\n<p><strong>Heiti ritger\u00f0ar:<\/strong>\u00a0\u00c1hrif breytinga \u00e1 landnotkun \u00e1 nor\u00f0ursl\u00f3\u00f0um \u00e1 \u00fe\u00e9ttleika va\u00f0fugla (Effects of land conversion in sub-arctic landscapes on densities of ground-nesting birds)<\/p>\n<p><strong>Andm\u00e6lendur: <\/strong>Dr. David Douglas, ranns\u00f3knas\u00e9rfr\u00e6\u00f0ingur hj\u00e1 Konunglega breska fuglaverndarf\u00e9laginu<br \/> Dr. \u00c1sa L. Arad\u00f3ttir, pr\u00f3fessor vi\u00f0 Landb\u00fana\u00f0arh\u00e1sk\u00f3la \u00cdslands<\/p>\n<p><strong>Lei\u00f0beinandi:<\/strong>\u00a0Dr. T\u00f3mas Gr\u00e9tar Gunnarsson, v\u00edsindama\u00f0ur og forst\u00f6\u00f0uma\u00f0ur Ranns\u00f3knaseturs H\u00e1sk\u00f3la \u00cdslands \u00e1 Su\u00f0urlandi<\/p>\n<p><strong>Einnig \u00ed doktorsnefnd:<\/strong> \u00a0Dr. Jennifer A. Gill, pr\u00f3fessor vi\u00f0 University of East Anglia \u00ed Bretlandi<br \/> Dr. Sn\u00e6bj\u00f6rn P\u00e1lsson, pr\u00f3fessor vi\u00f0 L\u00edf- og umhverfisv\u00edsindadeild H\u00cd<br \/> Dr. Jos\u00e9 A. Alves, ranns\u00f3knas\u00e9rfr\u00e6\u00f0ingur vi\u00f0 University of Aveiro \u00ed Port\u00fagal<\/p>\n<p><strong>Doktorsv\u00f6rn st\u00fdrir:<\/strong>\u00a0Dr. Anna D\u00f3ra S\u00e6\u00fe\u00f3rsd\u00f3ttir, pr\u00f3fessor og deildarforseti L\u00edf- og umhverfisv\u00edsindadeildar H\u00cd<\/p>\n<p><strong>\u00c1grip<\/strong><\/p>\n<p>L\u00edffr\u00e6\u00f0ilegum fj\u00f6lbreytileika fer hnignandi \u00e1 heimsv\u00edsu, og megin\u00e1st\u00e6\u00f0ur \u00feessa eru aukin umsvif manna og breytingar \u00e1 landnotkun. \u00c1 l\u00e1glendi \u00cdslands hafa umsvif manna aukist t\u00f6luvert undanfarna \u00e1ratugi, en \u00fev\u00ed fylgir aukinn fj\u00f6ldi n\u00fdvirkja. L\u00edti\u00f0 er vita\u00f0 um \u00e1hrif \u00feessara breytinga \u00e1 \u00fe\u00e1 mikilv\u00e6gu l\u00edffr\u00e6\u00f0ilegu fj\u00f6lbreytni sem \u00feessi landsv\u00e6\u00f0i b\u00faa yfir. Markmi\u00f0 \u00feessarar ranns\u00f3knar var a\u00f0 kanna hvort og hvernig fj\u00f3rar ger\u00f0ir n\u00fdvirkja (vegir, sumarh\u00fas, rafl\u00ednur og r\u00e6kta\u00f0ir sk\u00f3gar) hef\u00f0u \u00e1hrif \u00e1 \u00fe\u00e9ttleika og tegundasamsetningu m\u00f3fugla \u00ed n\u00e1nasta umhverfi. Sv\u00e6\u00f0i voru valin \u00e1 l\u00e1glendi \u00cdslands \u00fear sem \u00feessar ger\u00f0ir n\u00fdvirkja voru til sta\u00f0ar \u00ed mismunandi fj\u00f6lda og st\u00e6r\u00f0, og fuglar taldir. Tv\u00e6r tegundir (sk\u00f3gar\u00fer\u00f6stur og hrossagaukur) fundust \u00e1vallt \u00ed h\u00e6rri \u00fe\u00e9ttleika n\u00e1l\u00e6gt n\u00fdvirkjum e\u00f0a s\u00fdndu engan mun me\u00f0 fjarl\u00e6g\u00f0 fr\u00e1 n\u00fdvirki, en sex tegundir (\u00fe\u00fafutittlingur, ja\u00f0rakan, hei\u00f0l\u00f3a, tjaldur, sp\u00f3i og stelkur) fundust \u00ed l\u00e6gri \u00fe\u00e9ttleika n\u00e1l\u00e6gt a.m.k. einni ger\u00f0 n\u00fdvirkja. \u00cd kringum vegi og sk\u00f3ga n\u00e1\u00f0u \u00feessi \u00e1hrif 200 m \u00fat fyrir ja\u00f0ar n\u00fdvirkisins. Hei\u00f0l\u00f3a og sp\u00f3i s\u00fdndu sterkustu \u00e1hrifin, en milli 40-52% af heimsstofnum \u00feessara tegunda verpa \u00e1 \u00cdslandi. Breytingar \u00e1 landnotkun \u00e1 l\u00e1glendi \u00cdslands, sem hlj\u00f3tast af \u00fev\u00ed a\u00f0 nytjask\u00f3gum, rafl\u00ednum, vegum og h\u00fasum er komi\u00f0 fyrir \u00ed opnum b\u00fasv\u00e6\u00f0um, geta haft afgerandi \u00e1hrif \u00e1 stofna \u00feessara tegunda. Fuglar hafa veri\u00f0 taldir \u00e1 s\u00f6mu punktum \u00e1 Su\u00f0urlandi \u00e1 hverju \u00e1ri s\u00ed\u00f0an 2011, \u00fear sem miklar breytingar hafa or\u00f0i\u00f0 \u00e1 landnotkun, og ni\u00f0urst\u00f6\u00f0urnar benda til \u00feess a\u00f0 me\u00f0an sk\u00f3gar\u00feresti fj\u00f6lgar og hrossagaukur s\u00fdnir engar breytingar, fari \u00f6llum hinum tegundunum sem voru h\u00e9r til ranns\u00f3knar f\u00e6kkandi. Sta\u00f0setning og umfang n\u00fdvirkja \u00e1 l\u00e1glendi \u00cdslands \u00fearf a\u00f0 skipuleggja me\u00f0 \u00fea\u00f0 \u00ed huga a\u00f0 l\u00e1gmarka \u00feessi \u00e1hrif \u00e1 m\u00f3fugla, en \u00cdsland ber al\u00fej\u00f3\u00f0lega \u00e1byrg\u00f0 \u00e1 m\u00f6rgum \u00feessara tegunda og \u00e6tti verndun \u00feeirra st\u00f3ru opnu b\u00fasv\u00e6\u00f0a sem eru enn til sta\u00f0ar a\u00f0 vera \u00ed forgangi.<\/p>\n<p><strong>Um doktorsefni\u00f0<\/strong><\/p>\n<p>Ald\u00eds Erna P\u00e1lsd\u00f3ttir er f\u00e6dd \u00e1ri\u00f0 1990 og \u00f3lst upp \u00ed Hafnarfir\u00f0i. H\u00fan lauk st\u00fadentspr\u00f3fi af n\u00e1tt\u00farufr\u00e6\u00f0ibraut II fr\u00e1 Menntask\u00f3lanum \u00ed Reykjav\u00edk \u00e1ri\u00f0 2010, BSc-pr\u00f3fi \u00ed l\u00edffr\u00e6\u00f0i fr\u00e1 H\u00e1sk\u00f3la \u00cdslands \u00e1ri\u00f0 2013 og meistarapr\u00f3fi \u00ed l\u00edffr\u00e6\u00f0i fr\u00e1 sama sk\u00f3la \u00e1ri\u00f0 2016, en t\u00f3k einnig \u00e1r af meistaran\u00e1minu \u00ed Gautaborgarh\u00e1sk\u00f3la. Ald\u00eds starfa\u00f0i sem kennari \u00ed verklegum t\u00edmum \u00ed l\u00edffr\u00e6\u00f0i hj\u00e1 H\u00e1sk\u00f3la \u00cdslands samhli\u00f0a doktorsn\u00e1mi s\u00ednu og t\u00f3k n\u00fdveri\u00f0 vi\u00f0 st\u00f6\u00f0u verkefnast\u00fdru \u00ed verkefninu Patterns of nest mortality in ground-nesting birds across land-use and climate gradients, vi\u00f0 Ranns\u00f3knasetur H\u00e1sk\u00f3la \u00cdslands \u00e1 Su\u00f0urlandi. Foreldrar hennar eru P\u00e1ll \u00d3lafsson e\u00f0lisverkfr\u00e6\u00f0ingur og El\u00ednborg Gu\u00f0mundsd\u00f3ttir augnl\u00e6knir. Ald\u00eds er gift Hilmari \u00de\u00f3r Birgissyni t\u00f6lvuverkfr\u00e6\u00f0ingi og eiga \u00feau b\u00f6rnin Sigr\u00fanu Elfu og P\u00e1l Fannar.<\/p>\n<\/div><\/div>","protected":false},"featured_media":5127,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_phd_date_start":"2022-06-28T13:00:00+00:00","_phd_date_end":"2022-06-28T15:00:00+00:00","_phd_location":"A\u00f0albygging H\u00e1t\u00ed\u00f0arsalur","_phd_admission":"A\u00f0gangur \u00f3keypis","_phd_thesis_title":"\u00c1hrif breytinga \u00e1 landnotkun \u00e1 nor\u00f0ursl\u00f3\u00f0um \u00e1 \u00fe\u00e9ttleika va\u00f0fugla (Effects of land conversion in sub-arctic landscapes on densities of ground-nesting birds)","_phd_source_url":"https:\/\/gamli.hi.is\/vidburdir\/doktorsvorn_i_liffraedi_aldis_erna_palsdottir","_phd_source_node_id":"384635","_phd_source_type":"vidburdir","_phd_member_id":801,"footnotes":""},"phd_school":[96,93],"phd_discipline":[97],"class_list":["post-6272","phd_defence","type-phd_defence","status-publish","has-post-thumbnail","hentry","phd_school-lif-og-umhverfisvisindadeild","phd_school-verkfraedi-og-natturuvisindasvid","phd_discipline-phd-i-liffraedi"],"_links":{"self":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence"}],"about":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/types\/phd_defence"}],"version-history":[{"count":0,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6272\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media\/5127"}],"wp:attachment":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media?parent=6272"}],"wp:term":[{"taxonomy":"phd_school","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_school?post=6272"},{"taxonomy":"phd_discipline","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_discipline?post=6272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}