This dissertation studies the key abiotic factors and plant characteristics that influence the performance of the highest growing herbaceous alpine plants in Ladakh, Western Himalayas, and examines vegetation changes likely associated with climate change. The study site, located in the Rupshu region of eastern Ladakh, hosts some of the world´s highest-growing angiosperm plant species that occur above 6000 m a.s.l. The gentle slopes characteristic for the region, resulting in long elevational gradients, are particularly suitable for studying plant adaptations to the harsh dry and cold environment typical of whole Ladakh. The study presents novel insights into the causes of plant elevation limits and the direction of the vegetation shifts related to climate change at the very edge of the existence of angiosperms.
Klíčová slova
-
Klíčová slova v angličtině
alpine plants, herbaceous plants, Western Himalayas, high elevation, elevational distribution limits, climate change, nonstructural carbohydrates
Rozsah průvodní práce
178 s
Jazyk
AN
Anotace
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Anotace v angličtině
This dissertation studies the key abiotic factors and plant characteristics that influence the performance of the highest growing herbaceous alpine plants in Ladakh, Western Himalayas, and examines vegetation changes likely associated with climate change. The study site, located in the Rupshu region of eastern Ladakh, hosts some of the world´s highest-growing angiosperm plant species that occur above 6000 m a.s.l. The gentle slopes characteristic for the region, resulting in long elevational gradients, are particularly suitable for studying plant adaptations to the harsh dry and cold environment typical of whole Ladakh. The study presents novel insights into the causes of plant elevation limits and the direction of the vegetation shifts related to climate change at the very edge of the existence of angiosperms.
Klíčová slova
-
Klíčová slova v angličtině
alpine plants, herbaceous plants, Western Himalayas, high elevation, elevational distribution limits, climate change, nonstructural carbohydrates
Zásady pro vypracování
-
Zásady pro vypracování
-
Seznam doporučené literatury
-
Seznam doporučené literatury
-
Přílohy volně vložené
-
Přílohy vázané v práci
ilustrace, mapy, grafy, portréty, tabulky
Převzato z knihovny
Ne
Plný text práce
Přílohy
Posudek(y) oponenta
Hodnocení vedoucího
Záznam průběhu obhajoby
Přítomni z komise: Rixen, Gago, Klimešová, Šmilauerová, Sklenář, Těšitel, Kučera, omluveni: de Bello
Průběh:
Představení uchazeče školitelem (doc. J. Doležal) a školitelské zhodnocení práce
Představení práce uchazečkou (25 min.)
Posudek 1. oponenta (Dr. Gago) a odpovědi na otázky. Odpovědi uspokojivé, oponent spokojen.
Posudek 2. oponenta (Dr. Rixen) a odpovědi na otázky. Odpovědi uspokojivé, oponent spokojen.
Dotazy z komise: doc. J. Těšitel (possible faults of the data analysis), doc. P. Sklenář (role of extreme year 2013; differences between limiting sites in Ladakh vs. other high-alpine regions; reason for negative role of higher precipitation – symptoms of „hydrophilization“); dr. Rixen (methodological issues in data collection; migration rate; role of biotic interaction – competion, facilitation etc.); dr. Gago (reasons for high P content in some high-alt. individuals)