Functional differences in response to drought in the invasiveTaraxacum officinalefrom native and introduced alpine habitat ranges

Autor:	Marco A. Molina-Montenegro, Cristian Torres-Díaz, Constanza L. Quiroz, Cristian Atala
Rok vydání:	2011
Předmět:	Phenotypic plasticity Ecology Ontogeny fungi Functional response food and beverages Plant Science Biology Flowering time Invasive species Habitat Taraxacum officinale Botany Ecology Evolution Behavior and Systematics Local adaptation
Zdroj:	Plant Ecology & Diversity. 4:37-44
ISSN:	1755-1668 1755-0874
DOI:	10.1080/17550874.2011.577459
Popis:	Background: Phenotypic plasticity and ecotypic differentiation have been suggested as the main mechanisms by which widely distributed species can colonise broad geographic areas with variable and stressful conditions. Some invasive plant species are among the most widely distributed plants worldwide. Plasticity and local adaptation could be the mechanisms for colonising new areas. Aims: We addressed if Taraxacum officinale from native (Alps) and introduced (Andes) stock responded similarly to drought treatment, in terms of photosynthesis, foliar angle, and flowering time. We also evaluated if ontogeny affected fitness and physiological responses to drought. Methods: We carried out two common garden experiments with both seedlings and adults (F2) of T. officinale from its native and introduced ranges in order to evaluate their plasticity and ecotypic differentiation under a drought treatment. Results: Our data suggest that the functional response of T. officinale individuals from the introduced range to dr...
Databáze:	OpenAIRE
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