Effect of reindeer (Rangifer tarandus) grazing on the expansion of dwarf shrubs in mountain birch forest ecosystems
Berry-producing dwarf shrubs are essential elements of the mountain birch forest ecosystem. These plants are exposed to different stress conditions, like herbivore pressure and extreme meteorological factors. In this study I tried to understand how the three most abundant berry-producing dwarf shrub...
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ftunivpisa:oai:etd.adm.unipi.it:etd-08282020-002449 2023-05-15T16:06:05+02:00 Effect of reindeer (Rangifer tarandus) grazing on the expansion of dwarf shrubs in mountain birch forest ecosystems FORNI, SARA Ciccarelli, Daniela Uboni, Alessia 2020-09-16 application/pdf http://etd.adm.unipi.it/theses/available/etd-08282020-002449/ it ita Pisa University http://etd.adm.unipi.it/theses/available/etd-08282020-002449/ info:eu-repo/semantics/openAccess Copyright information available at source archive http://etd.adm.unipi.it/theses/available/etd-08282020-002449/ BIOLOGIA text 2020 ftunivpisa 2022-12-26T14:11:56Z Berry-producing dwarf shrubs are essential elements of the mountain birch forest ecosystem. These plants are exposed to different stress conditions, like herbivore pressure and extreme meteorological factors. In this study I tried to understand how the three most abundant berry-producing dwarf shrubs species (Empetrum nigrum, Vaccinium myrtillus, Vaccinium vitis-idaea) respond to reindeer presence, mean temperature and precipitation. The study took place in four site across Fennoscandia mountain for two years during summer, where were collected data to evaluate plant growth and sexual reproduction. The presence of reindeer has a positive effect on the three species of berry-producing dwarf shrubs, but a high grazing pressure can negatively affect the growth and the sexual reproduction of the plants. High precipitation negatively affects the three species of berry-producing dwarf shrubs, while all the species are positively affected by milder mean temperature. V. vitis-idaea resulted to be the species least influenced by both reindeer presence and meteorological factors. The study shown that the abundance of berry-producing dwarf shrubs may increase in the mountain birch forest, with the variation of reindeer presence and meteorological factors. Text Empetrum nigrum Fennoscandia Rangifer tarandus Università di Pisa: ETD (Electronic Theses and Dissertations) |
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Open Polar |
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Università di Pisa: ETD (Electronic Theses and Dissertations) |
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ftunivpisa |
language |
Italian |
topic |
BIOLOGIA |
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BIOLOGIA FORNI, SARA Effect of reindeer (Rangifer tarandus) grazing on the expansion of dwarf shrubs in mountain birch forest ecosystems |
topic_facet |
BIOLOGIA |
description |
Berry-producing dwarf shrubs are essential elements of the mountain birch forest ecosystem. These plants are exposed to different stress conditions, like herbivore pressure and extreme meteorological factors. In this study I tried to understand how the three most abundant berry-producing dwarf shrubs species (Empetrum nigrum, Vaccinium myrtillus, Vaccinium vitis-idaea) respond to reindeer presence, mean temperature and precipitation. The study took place in four site across Fennoscandia mountain for two years during summer, where were collected data to evaluate plant growth and sexual reproduction. The presence of reindeer has a positive effect on the three species of berry-producing dwarf shrubs, but a high grazing pressure can negatively affect the growth and the sexual reproduction of the plants. High precipitation negatively affects the three species of berry-producing dwarf shrubs, while all the species are positively affected by milder mean temperature. V. vitis-idaea resulted to be the species least influenced by both reindeer presence and meteorological factors. The study shown that the abundance of berry-producing dwarf shrubs may increase in the mountain birch forest, with the variation of reindeer presence and meteorological factors. |
author2 |
Ciccarelli, Daniela Uboni, Alessia |
format |
Text |
author |
FORNI, SARA |
author_facet |
FORNI, SARA |
author_sort |
FORNI, SARA |
title |
Effect of reindeer (Rangifer tarandus) grazing on the expansion of dwarf shrubs in mountain birch forest ecosystems |
title_short |
Effect of reindeer (Rangifer tarandus) grazing on the expansion of dwarf shrubs in mountain birch forest ecosystems |
title_full |
Effect of reindeer (Rangifer tarandus) grazing on the expansion of dwarf shrubs in mountain birch forest ecosystems |
title_fullStr |
Effect of reindeer (Rangifer tarandus) grazing on the expansion of dwarf shrubs in mountain birch forest ecosystems |
title_full_unstemmed |
Effect of reindeer (Rangifer tarandus) grazing on the expansion of dwarf shrubs in mountain birch forest ecosystems |
title_sort |
effect of reindeer (rangifer tarandus) grazing on the expansion of dwarf shrubs in mountain birch forest ecosystems |
publisher |
Pisa University |
publishDate |
2020 |
url |
http://etd.adm.unipi.it/theses/available/etd-08282020-002449/ |
genre |
Empetrum nigrum Fennoscandia Rangifer tarandus |
genre_facet |
Empetrum nigrum Fennoscandia Rangifer tarandus |
op_source |
http://etd.adm.unipi.it/theses/available/etd-08282020-002449/ |
op_relation |
http://etd.adm.unipi.it/theses/available/etd-08282020-002449/ |
op_rights |
info:eu-repo/semantics/openAccess Copyright information available at source archive |
_version_ |
1766401997961953280 |