Fine-scale patterns of mountain tundra vegetation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43510%2F19%3A43917178" target="_blank" >RIV/62156489:43510/19:43917178 - isvavai.cz</a>

Výsledek na webu

<a href="http://evs2019madrid.es/wp-content/uploads/2019/08/ABSTRACTS-Book.pdf" target="_blank" >http://evs2019madrid.es/wp-content/uploads/2019/08/ABSTRACTS-Book.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Fine-scale patterns of mountain tundra vegetation

Popis výsledku v původním jazyce

Seven percent of the Earth&apos;s surface is covered by tundra vegetation that is common, besides arctic areas, in numerous high mountain ranges and contains ecosystems dominated by different species. These ecosystems are vulnerable by their nature, partly due to their simple structure. On the other hand, several creatures live here very close to their survival boundaries. These characteristics suggest that species of arctic-alpine communities react to global climate change in a more sensitive and faster way compared to other taxa in other plant associations. During our research the vegetation of a Norwegian tundra area has been assessed by 292 fine-scale relevés and methods of geographic information science (ArcGIS). The assessment has included the values and spatial patterns of different plant functional groups, species richness, total plant cover, Shannon diversity index and dominance relations as well as the exposition, relative altitude, slope and distance from the nearest water body. Altogether 85 plant species emerged in the relevés. As for the total cover, lichens were followed by moss species and dwarf shrubs. Concerning dominance relations of the quadrates nearly 30 patch types have been identified based on principal component analysis. As far as life forms are concerned, the share of geophytes and chamaephytes was also remarkable beside thalloid chamaephytes. The average value for Shannon diversity was 1.26, although surprisingly high figures (exceeding 2) has been calculated in four patches. The GIS maps are suitable for both long- and short-term monitoring of vegetation dynamic changes in the examined area. The research has justified that the fine-scale vegetation pattern could indicate key abiotic factors and connected to plant functional types.

Název v anglickém jazyce

Fine-scale patterns of mountain tundra vegetation

Popis výsledku anglicky

Seven percent of the Earth&apos;s surface is covered by tundra vegetation that is common, besides arctic areas, in numerous high mountain ranges and contains ecosystems dominated by different species. These ecosystems are vulnerable by their nature, partly due to their simple structure. On the other hand, several creatures live here very close to their survival boundaries. These characteristics suggest that species of arctic-alpine communities react to global climate change in a more sensitive and faster way compared to other taxa in other plant associations. During our research the vegetation of a Norwegian tundra area has been assessed by 292 fine-scale relevés and methods of geographic information science (ArcGIS). The assessment has included the values and spatial patterns of different plant functional groups, species richness, total plant cover, Shannon diversity index and dominance relations as well as the exposition, relative altitude, slope and distance from the nearest water body. Altogether 85 plant species emerged in the relevés. As for the total cover, lichens were followed by moss species and dwarf shrubs. Concerning dominance relations of the quadrates nearly 30 patch types have been identified based on principal component analysis. As far as life forms are concerned, the share of geophytes and chamaephytes was also remarkable beside thalloid chamaephytes. The average value for Shannon diversity was 1.26, although surprisingly high figures (exceeding 2) has been calculated in four patches. The GIS maps are suitable for both long- and short-term monitoring of vegetation dynamic changes in the examined area. The research has justified that the fine-scale vegetation pattern could indicate key abiotic factors and connected to plant functional types.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10618 - Ecology

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů