Phenotypic plasticity in Calamagrostis epigejos (Poaceae): response capacities of genotypes from different populations of contrasting habitats to a range of soil fertility

Lehmann, Christian; Rebele, Franz

doi:10.1016/j.actao.2005.03.005

Cited by 28 publications

(18 citation statements)

References 50 publications

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“…Its mean plant-level plasticity at both LR (PI V = 0.58) and HR (PI V = 0.63) sites is much higher than that reported for invasive species (PI V = 0.48) by Funk (2008) in comparison with the native ones investigated by him. Its high phenotypic plasticity is suggested to contribute to the invasiveness of this species (Droste et al 2010;Lehmann and Rebele 2005;Maron et al 2004;Parker et al 2003;Pyšek and Richardson 2007). Higher phenotypic plasticity under higher resource conditions, as observed at HR site compared to LR site in this study, is possibly a prevalent invasive trait (Davidson et al 2011),with the ability to capitalize on increased resource availability (Richards et al 2006).…”

Section: Discussionmentioning

confidence: 70%

“…For survival and establishment of such species, especially those turning invasive, it is essential that they show phenotypic plasticity via variations of morphological and ecophysiological traits. Thus, phenotypic plasticity may be viewed as a potential mechanism for successful colonization in areas with differing ecological conditions (Lehmann and Rebele 2005;Maron et al 2004). It is believed to be the primary growth strategy for the invasive species to adapt to new environments and expand the habitat range (Parker et al 2003;Zhu et al 2007).…”

Section: Introductionmentioning

confidence: 98%

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Phenotypic plasticity of Chenopodium murale across contrasting habitat conditions in peri-urban areas in Indian dry tropics: Is it indicative of its invasiveness?

Gupta

Narayan

2011

Plant Ecol

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Phenotypic plasticity is an important plant trait associated with invasiveness of alien plants that reflects its ability to occupy a wide range of environments. We investigated the phenotypic response of Chenopodium murale to resource variability and ontogeny. Its plant-level and leaf-level traits were studied at high-resource (HR) and low-resource (LR) sites in peri-urban areas in Indian dry tropics. Plants at LR had significantly higher root length, root/shoot biomass ratio, stem mass and root mass fractions. Plants at HR had higher shoot length, basal diameter, leaf mass fraction and leaf area ratio. Leaf-level traits like leaf area and chlorophyll a were also higher here. Mean plasticity indices for plant-and leaf-level traits were higher at HR. With increasing total plant biomass, there was significant increase in the biomass of leaf, stem, root, and reproductive parts, and root and shoot lengths, whereas root/shoot length ratio, their biomass ratio, and leaf and root mass fractions declined significantly. Allocation to roots and leaves significantly decreased with increasing plant size at both sites. But, at any size, allocation to roots was greater at LR, indicative of optimization of capture of soil nutrients, whereas leaf allocation was higher at HR. Consistently increasing stem allocation equaled leaf allocation at comparatively higher shoot lengths at HR. Reproductive biomass comprised 10-12% of the plant's total biomass. In conclusion, the success of alien weed C. murale across environmentally diverse habitat conditions in Indian dry tropics can be attributed to its high phenotypic plasticity, resource utilization capability in low-resource habitats and higher reproductive potential. These characteristics suggest that it will continue to be an aggressive invader.

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Section: Discussionmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 98%

Phenotypic plasticity of Chenopodium murale across contrasting habitat conditions in peri-urban areas in Indian dry tropics: Is it indicative of its invasiveness?

Gupta

Narayan

2011

Plant Ecol

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“…Bold values are significantly different at P < 0.05. Murray et al, 2002;Grant et al, 2005;Lehmann & Rebele, 2005;Pohlman et al, 2005;Rozendaal et al, 2006). For example, when Quercus coccifera populations from habitats differing in light heterogeneity are grown under two light treatments, light capture-related traits -leaf size, angle and LAR -show the greatest variation in extent of plasticity, and the population from the more heterogeneous habitat is the more plastic (Balaguer et al, 2001).…”

Section: Plasticity and Habitat Heterogeneitymentioning

confidence: 99%

Geographic variation and plasticity to water and nutrients in Pelargonium australe

et al. 2007

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Summary• Here, patterns of phenotypic plasticity and trait integration of leaf characteristics in six geographically discrete populations of the perennial herb Pelargonium australe were compared. It was hypothesized that populations would show local adaptation in trait means, but similar patterns of plasticity and trait integration. Further, it was questioned whether phenotypic plasticity was positively correlated with environmental heterogeneity and whether plasticity for water-use traits in particular was adaptive.• Seedlings were grown in a glasshouse at six combinations of water and nutrient availability. Leaf anatomical, morphological and gas exchange traits were measured.• High amounts of plasticity in leaf traits were found in response to changes in growth conditions and there was evidence of local adaptation among the populations. While there were significant correlations between plasticity and environmental heterogeneity, not all were positive. Notably, patterns of plasticity and trait integration varied significantly among populations. Despite that variation, some of the observed plasticity was adaptive: fitness was correlated with conservative water use when water was limiting.• Pelargonium arrived in Australia ∼ 5 million yr ago. It is concluded here that high amounts of plasticity, in some cases adaptive, and weak integration among traits may be key to the spread and success of this species.

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“…These factors contribute to the success of invaders in diverse habitats (Cordell et al 1998;Lehmann and Rebele 2005). It has been suggested that phenotypic plasticity enables invasive plants to grow and reproduce in a wide range of environmental conditions (Berg and Ellers 2010;Skálová et al 2012), which may consequently broaden their habitat niche in the invaded range (Richards et al 2006;Hejda et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Can adaptive modulation of traits to urban environments facilitate Ricinus communis L. invasiveness?

Goyal

Pardha-Saradhi

Sharma

2014

Environ Monit Assess

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This paper addresses the phenotypic variation among Ricinus communis L. populations in four urban habitat types (road verges, garbage dumps, construction debris, and natural area) in Delhi, India, by evaluating important traits such as plant height, basal circumference, seeds per plant, seed size, seed weight, specific leaf area, and reproductive index. An important biochemical marker, proline, considered as a good plant performance indicator under stress was also quantified in leaves of R. communis to evaluate its response in different habitats. Interestingly, the species showed significant variation in plant height, specific leaf area, seed size, seed weight, and leaf proline content in different habitat types. Leaf proline content was positively related to plant height, specific leaf area, and seed size while negatively related to the total number of seeds/plant. Interestingly, reproductive index, calculated as a ratio of the total number of seeds to the plant height also showed a negative relation with leaf proline content. Results indicated that R. communis exhibits adaptive modulation of growth, reproductive traits, and leaf proline content in various urban habitats which contributes to invasiveness, range expansion, and establishment of the species. The study also gives evidence of how morphological and physiological traits could directly affect invasiveness of R. communis.

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Phenotypic plasticity in Calamagrostis epigejos (Poaceae): response capacities of genotypes from different populations of contrasting habitats to a range of soil fertility

Cited by 28 publications

References 50 publications

Phenotypic plasticity of Chenopodium murale across contrasting habitat conditions in peri-urban areas in Indian dry tropics: Is it indicative of its invasiveness?

Phenotypic plasticity of Chenopodium murale across contrasting habitat conditions in peri-urban areas in Indian dry tropics: Is it indicative of its invasiveness?

Geographic variation and plasticity to water and nutrients in Pelargonium australe

Can adaptive modulation of traits to urban environments facilitate Ricinus communis L. invasiveness?

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