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08:16
Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
Published on: March 13, 2014
Origin matters: widely distributed native and non-native species benefit from different functional traits
1Department Community Ecology, UFZ - Helmholtz Centre for Environmental Research, Theodor-Lieser-Str. 4, 06120, Halle Saale, Germany. sonja.knapp@ufz.de
Ecology Letters
|April 24, 2012
Summary
Native and non-native plant species frequency in Germany is driven by similar functional traits, but non-native species show distinct patterns related to flowering and environmental tolerance. Introduction pathways also influence non-native species distribution.
Area of Science:
- Ecology
- Botany
- Environmental Science
Background:
- Ecological debates question the utility of distinguishing native from non-native species, with arguments focusing on functional differences irrespective of origin versus ecologically relevant distinctions.
- Understanding the traits that influence species distribution is crucial for predicting ecological dynamics and managing biodiversity.
Purpose of the Study:
- To investigate the functional traits driving the frequency of native and non-native vascular plant species in Germany.
- To determine if functional traits interact with species status (native/non-native) to influence their distribution.
Main Methods:
- Analysis of vascular plant species grid-cell frequency across Germany.
- Statistical modeling to explain species frequency using functional traits (life span, ploidy, self-compatibility, flowering cessation, storage organs, environmental tolerance) and their interaction with species status.
Main Results:
- Species frequency for both native and non-native plants was similarly influenced by life span, ploidy type, and self-compatibility.
- Non-native species frequency increased with later flowering cessation, a pattern not observed in native species.
- Differences were observed in storage organs and environmental tolerance between native and non-native species.
Conclusions:
- Environmental filters may drive trait convergence between native and non-native species, while competition could lead to trait divergence.
- Introduction pathways significantly influence the frequency and distribution of non-native species.
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