Role of phenology in differentiation of plant niches: quantitative and comparative approach using a large set of species
Role fenologie v diferenciaci rostlinných nik: kvantitativní a komparativní pohled za využití rozsáhlého souboru druhů
dissertation thesis (DEFENDED)

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Permanent link
http://hdl.handle.net/20.500.11956/104351Identifiers
Study Information System: 144087
CU Caralogue: 990022173790106986
Collections
- Kvalifikační práce [20889]
Author
Advisor
Referee
van Kleunen, Mark
Dostál, Petr
Faculty / Institute
Faculty of Science
Discipline
-
Department
Department of Botany
Date of defense
7. 12. 2018
Publisher
Univerzita Karlova, Přírodovědecká fakultaLanguage
English
Grade
Pass
Keywords (Czech)
fenologie, botanická zahradaKeywords (English)
phenology, botanical gardenNiche differentiation is the most recognized species coexistence mechanism, of which, the temporal differentiation of species, i.e. phenological differentiation has gained an increasing interest of ecologists. However, as an important dimension of phenology, the phenology of growth has drawn relatively few attentions due to the lack of sufficient phenological data. Therefore, the aim of this thesis is to examine potential role of temporal differentiation of plant growth patterns in plant coexistence. I first collected data on growth phenology of 381 perennial herbs in the Botanical Garden of Charles University in Prague within one growing season (in 2015). Using this database, I addressed the general patterns of growth phenology among perennial herbs. I distinguished two contrasting growth patterns: (1) species with early peak growth had high standardized growth rates in contrast to late species, reflecting the survival under forest canopy, where species are selected to grow early and fast before the development of tree canopy which restricts their size; (2) tall species showed later peak growth than short species, associating with (asymmetric) competition for light in open habitats, where the main selection factor is for tall stature, which cannot be attained early in the season. Then, by linking...
Niche differentiation is the most recognized species coexistence mechanism, of which, the temporal differentiation of species, i.e. phenological differentiation has gained an increasing interest of ecologists. However, as an important dimension of phenology, the phenology of growth has drawn relatively few attentions due to the lack of sufficient phenological data. Therefore, the aim of this thesis is to examine potential role of temporal differentiation of plant growth patterns in plant coexistence. I first collected data on growth phenology of 381 perennial herbs in the Botanical Garden of Charles University in Prague within one growing season (in 2015). Using this database, I addressed the general patterns of growth phenology among perennial herbs. I distinguished two contrasting growth patterns: (1) species with early peak growth had high standardized growth rates in contrast to late species, reflecting the survival under forest canopy, where species are selected to grow early and fast before the development of tree canopy which restricts their size; (2) tall species showed later peak growth than short species, associating with (asymmetric) competition for light in open habitats, where the main selection factor is for tall stature, which cannot be attained early in the season. Then, by linking...