{"id":268,"date":"2018-03-02T13:51:23","date_gmt":"2018-03-02T12:51:23","guid":{"rendered":"http:\/\/wp.unil.ch\/lakes\/?page_id=268"},"modified":"2025-12-09T12:02:44","modified_gmt":"2025-12-09T11:02:44","slug":"hydrological-changes-in-high-altitude-watersheds","status":"publish","type":"page","link":"https:\/\/wp.unil.ch\/lakes\/research\/hydrological-changes-in-high-altitude-watersheds\/","title":{"rendered":"High altitude lakes"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">High-altitude lakes and climate change<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"405\" src=\"https:\/\/wp.unil.ch\/lakes\/files\/2025\/12\/presentation4.png\" alt=\"pr\u00e9sentation4\" class=\"wp-image-1354\" srcset=\"https:\/\/wp.unil.ch\/lakes\/files\/2025\/12\/presentation4.png 720w, https:\/\/wp.unil.ch\/lakes\/files\/2025\/12\/presentation4-300x169.png 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<h6 class=\"wp-block-heading\">&nbsp;<\/h6>\n\n\n\n<p>High-altitude lakes are not only subject to exacerbated atmospheric warming but also highly exposed to intense episodic weather events. The future of these ecosystems under climate change might not be appropriately forecasted by only climate change trends, i.e., warming, if episodic events and hydrological changes have the potential to deflect the seasonal trajectory of crucial physical and metabolic lake characteristics.<\/p>\n\n\n\n<p>We combine paleo-ecology, low- and high frequency surveys and modeling to explore how changes due to climate change affect the temperature, ecology and biogeochemistry of high-altitude lakes and <a href=\"https:\/\/wp.unil.ch\/lakes\/team\/yann-guenand\/\">reservoirs<\/a>.<\/p>\n\n\n\n<p>See:<\/p>\n\n\n\n<p><strong>Herr, I. , Bouffard, D., Perga M-E. <\/strong>(in review). Decoupling Air and Water: How Throughflow Shapes Alpine Lake Temperatures. Inland Waters.<\/p>\n\n\n\n<p>Dory F, Arthaud F, Aug\u00e9 V, Baillot S, Bertrand C, Birck C, . . . <strong>Perga M-E<\/strong> (2025) <a href=\"https:\/\/aslopubs.onlinelibrary.wiley.com\/doi\/10.1002\/lol2.70034#\">Vulnerable but not equal: Mountain lakes exhibit heterogeneous patterns of phytoplankton responses to climate change<\/a>. <em>Limnology and Oceanography Letters,&nbsp;<\/em>10.1002\/lol2.70034.<\/p>\n\n\n\n<p>Tiberti, R., Dory, F., Arthaud, F., Aug\u00e9, V., Birk, C., Cavalli, L., Fontaneto, D., Napoleoni, R.,&nbsp;<strong>Perga, M.E<\/strong>., Sab\u00e1s, I., Sagot, C., Sommaruga, R. (2025)&nbsp;<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0006320725002599\">Long-term changes of zooplankton in alpine lakes result from a combination of local and global threats<\/a>.&nbsp;<em>Biological Conservation<\/em>&nbsp;308, 111222.<\/p>\n\n\n\n<p><strong>M.E Perga<\/strong>, C. Minaudo, T. Doda F. Arthaud, H. Beria, H.E. Chmiel,&nbsp;<strong>N. Escoffier, T. Lambert,<\/strong>&nbsp;R. Napolleoni, B. Obrador,&nbsp;<strong>P. Perolo, J. R\u00fcegg,<\/strong>&nbsp;H.N. Ulloa, D. Bouffard (2023).&nbsp;Near-bed stratification controls bottom hypoxia in ice-covered alpine lakes.&nbsp;<em>Limnology and Oceanography.<\/em>&nbsp;https:\/\/doi.org\/10.1002\/lno.12341<\/p>\n\n\n\n<p><strong>Perga M-E,<\/strong> Bruel R, Rodriguez L, Gu\u00e9nand Y, <strong>Bouffard D <\/strong>(2018) Storm impacts on alpine lakes: Antecedent weather conditions matter more than the event intensity. Global Change Biology<i>,<\/i> <b>24<\/b>, 5004-5016.<\/p>\n\n\n\n<p><strong>Bonus: <\/strong><\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"806\" height=\"574\" src=\"https:\/\/wp.unil.ch\/lakes\/files\/2025\/12\/capture-decran-2025-12-09-a-11.13.07.png\" alt=\"capture d\u2019\u00e9cran 2025 12 09 \u00e0 11.13.07\" class=\"wp-image-1384 size-full\" srcset=\"https:\/\/wp.unil.ch\/lakes\/files\/2025\/12\/capture-decran-2025-12-09-a-11.13.07.png 806w, https:\/\/wp.unil.ch\/lakes\/files\/2025\/12\/capture-decran-2025-12-09-a-11.13.07-300x214.png 300w, https:\/\/wp.unil.ch\/lakes\/files\/2025\/12\/capture-decran-2025-12-09-a-11.13.07-768x547.png 768w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p><\/p>\n<\/div><\/div>\n\n\n\n<p><a href=\"https:\/\/drive.google.com\/file\/d\/1gPZaolhzFh8dVLXhNrcvbPbsgM-5OQ0m\/view?pli=1\">21 Questions sur le lac de la Muzelle<\/a> &#8211; Perga M.-E. (2025) . <\/p>\n","protected":false},"excerpt":{"rendered":"<p>High-altitude lakes and climate change &nbsp; High-altitude lakes are not only subject to exacerbated atmospheric warming but also highly exposed to intense episodic weather events. The future of these ecosystems under climate change might not be appropriately forecasted by only climate change trends, i.e., warming, if episodic events and hydrological changes have the potential to &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/wp.unil.ch\/lakes\/research\/hydrological-changes-in-high-altitude-watersheds\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;High altitude lakes&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1001709,"featured_media":0,"parent":106,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"class_list":["post-268","page","type-page","status-publish"],"_links":{"self":[{"href":"https:\/\/wp.unil.ch\/lakes\/wp-json\/wp\/v2\/pages\/268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.unil.ch\/lakes\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.unil.ch\/lakes\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/lakes\/wp-json\/wp\/v2\/users\/1001709"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/lakes\/wp-json\/wp\/v2\/comments?post=268"}],"version-history":[{"count":5,"href":"https:\/\/wp.unil.ch\/lakes\/wp-json\/wp\/v2\/pages\/268\/revisions"}],"predecessor-version":[{"id":1393,"href":"https:\/\/wp.unil.ch\/lakes\/wp-json\/wp\/v2\/pages\/268\/revisions\/1393"}],"up":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/lakes\/wp-json\/wp\/v2\/pages\/106"}],"wp:attachment":[{"href":"https:\/\/wp.unil.ch\/lakes\/wp-json\/wp\/v2\/media?parent=268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}