Study of the effects of climate warming on seed germination and seed longevity of snowbed species
Understanding how climate change will affect the distribution and the phenology of plants is becoming an increasingly important topic in ecological studies. In response to climate warming, there are documented upward shift and alterations of phenology and physiology of several plant species. Despite...
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Università degli Studi di Parma. Dipartimento di Biologia evolutiva e funzionale
2019
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ftunivparma:oai:www.repository.unipr.it:1889/3868 2023-05-15T18:40:33+02:00 Study of the effects of climate warming on seed germination and seed longevity of snowbed species Bernareggi, Giulietta Petraglia, Alessandro Carbognani, Michele Mondoni, Andrea 2019-07-29T11:44:23Z application/pdf http://hdl.handle.net/1889/3868 Italiano ita Università degli Studi di Parma. Dipartimento di Biologia evolutiva e funzionale Dottorato di ricerca in Biologia Vegetale http://hdl.handle.net/1889/3868 © Giulietta Bernareggi, 2016 Climate Warming Adaptation Seed longevity Seed germination Seed Dormancy Snowbed Treeline BIO/03 Doctoral thesis 2019 ftunivparma 2021-07-28T13:44:56Z Understanding how climate change will affect the distribution and the phenology of plants is becoming an increasingly important topic in ecological studies. In response to climate warming, there are documented upward shift and alterations of phenology and physiology of several plant species. Despite this, the effects of climate change on plant regeneration from seeds have largely been neglected. However, regeneration from seeds, a key event in the plant life cycle, could be significantly affected by climate warming. In this regard, we investigated how climatic changes will affect the seasonal dynamics of seed germination and seedling survival in two different alpine context. The first part refers to five species inhabiting a snowbed located at the Gavia pass (Parco Naturale dello Stelvio). Here, plants were exposed, in the field, to natural conditions and to artificial warming using Open Top Chambers proposed by the ITEX (International Tundra Experiment). The germination curves of seeds produced were compared in order to highlight differences in seed germination ecology and in seed physiology induced by the climate warming. In the second part, we considered two tree species that form the treeline in Davos (Switzerland). As a surrogate of climate warming we used the natural thermal gradient driven by the altitude and we compared the germination behavior of the species studied in three sites at three different elevations in order to evaluate the likelihood of treeline shift under the predicted climate warming. Doctoral or Postdoctoral Thesis Tundra University of Parma: DSpaceUnipr |
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Open Polar |
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University of Parma: DSpaceUnipr |
op_collection_id |
ftunivparma |
language |
Italian |
topic |
Climate Warming Adaptation Seed longevity Seed germination Seed Dormancy Snowbed Treeline BIO/03 |
spellingShingle |
Climate Warming Adaptation Seed longevity Seed germination Seed Dormancy Snowbed Treeline BIO/03 Bernareggi, Giulietta Study of the effects of climate warming on seed germination and seed longevity of snowbed species |
topic_facet |
Climate Warming Adaptation Seed longevity Seed germination Seed Dormancy Snowbed Treeline BIO/03 |
description |
Understanding how climate change will affect the distribution and the phenology of plants is becoming an increasingly important topic in ecological studies. In response to climate warming, there are documented upward shift and alterations of phenology and physiology of several plant species. Despite this, the effects of climate change on plant regeneration from seeds have largely been neglected. However, regeneration from seeds, a key event in the plant life cycle, could be significantly affected by climate warming. In this regard, we investigated how climatic changes will affect the seasonal dynamics of seed germination and seedling survival in two different alpine context. The first part refers to five species inhabiting a snowbed located at the Gavia pass (Parco Naturale dello Stelvio). Here, plants were exposed, in the field, to natural conditions and to artificial warming using Open Top Chambers proposed by the ITEX (International Tundra Experiment). The germination curves of seeds produced were compared in order to highlight differences in seed germination ecology and in seed physiology induced by the climate warming. In the second part, we considered two tree species that form the treeline in Davos (Switzerland). As a surrogate of climate warming we used the natural thermal gradient driven by the altitude and we compared the germination behavior of the species studied in three sites at three different elevations in order to evaluate the likelihood of treeline shift under the predicted climate warming. |
author2 |
Petraglia, Alessandro Carbognani, Michele Mondoni, Andrea |
format |
Doctoral or Postdoctoral Thesis |
author |
Bernareggi, Giulietta |
author_facet |
Bernareggi, Giulietta |
author_sort |
Bernareggi, Giulietta |
title |
Study of the effects of climate warming on seed germination and seed longevity of snowbed species |
title_short |
Study of the effects of climate warming on seed germination and seed longevity of snowbed species |
title_full |
Study of the effects of climate warming on seed germination and seed longevity of snowbed species |
title_fullStr |
Study of the effects of climate warming on seed germination and seed longevity of snowbed species |
title_full_unstemmed |
Study of the effects of climate warming on seed germination and seed longevity of snowbed species |
title_sort |
study of the effects of climate warming on seed germination and seed longevity of snowbed species |
publisher |
Università degli Studi di Parma. Dipartimento di Biologia evolutiva e funzionale |
publishDate |
2019 |
url |
http://hdl.handle.net/1889/3868 |
genre |
Tundra |
genre_facet |
Tundra |
op_relation |
Dottorato di ricerca in Biologia Vegetale http://hdl.handle.net/1889/3868 |
op_rights |
© Giulietta Bernareggi, 2016 |
_version_ |
1766229941157888000 |