BATTLE OF THE GIANTS: PRIMARY AND SECONDARY INVASIONS BY LARGE HERBACEOUS SPECIES

2012 ◽  
Vol 111 (3) ◽  
pp. 1-17 ◽  
Author(s):  
Margherita Gioria ◽  
Burkart Dieterich ◽  
Bruce Osborne
Keyword(s):  
Herbaceous Species

scholarly journals A Conserved Carbon Starvation Response Underlies Bud Dormancy in Woody and Herbaceous Species

2017 ◽  
Vol 8 ◽  
Author(s):  
Carlos Tarancón ◽  
Eduardo González-Grandío ◽  
Juan C. Oliveros ◽  
Michael Nicolas ◽  
Pilar Cubas
Keyword(s):  
Carbon Starvation ◽  
Bud Dormancy ◽  
Herbaceous Species ◽  
Starvation Response

No heat-stimulated germination found in herbaceous species from burned subtropical grassland

Plant Ecology ◽  
2005 ◽  
Vol 184 (2) ◽  
pp. 237-243 ◽  
Author(s):  
Gerhard E. Overbeck ◽  
Sandra C. Müller ◽  
Valério D. Pillar ◽  
Jörg Pfadenhauer
Keyword(s):  
Herbaceous Species

BATTLE OF THE GIANTS: PRIMARY AND SECONDARY INVASIONS BY LARGE HERBACEOUS SPECIES

2011 ◽  
Vol 111B (3) ◽  
pp. 177-193
Author(s):  
Margherita Gioria ◽  
Burkart Dieterich ◽  
Bruce Osborne
Keyword(s):  
Herbaceous Species

Developmental stability, canalization and phenotypic plasticity in annual herbaceous species under different biotic and abiotic conditions

2021 ◽  
Author(s):  
Shu Wang ◽  
Dao-Wei Zhou
Keyword(s):  
Phenotypic Plasticity ◽  
Plant Growth ◽  
Mean Value ◽  
Developmental Stability ◽  
Soil Conditions ◽  
Growth Stages ◽  
Herbaceous Species ◽  
Fertile Soil ◽  
Plant Growth Stages ◽  
Positive Correlations

Abstract The relationships among developmental stability, canalization and phenotypic plasticity have not been well understood. Inconsistent conclusions from different studies suggested the complexity of their associations, probably depending on specific traits, environmental contexts and plant growth stages. To address this issue, we conducted three experiments (EXP I ~ III) with several annual herbaceous species, to investigate the relationships among leaf (or cotyledon) developmental stability, canalization and plasticity and their variations with different biotic and abiotic environmental conditions and plant growth stages, with comparisons among different species at their early growth stage. We analyzed variations in mean trait value, lamina fluctuating asymmetry (FA), coefficient of variation (CV) and plasticity (RDPIs) and their correlations for lamina size (LS) of individual plants, for LS, petiole length (PL) and petiole angle (PA) of different plant layers in Abutilon theophrasti at three densities in infertile and fertile (or only fertile) soil conditions at three (or two) stages, and for cotyledon size (CS) of five species in contrasting light conditions and seeding depths. High vs. low density decreased LS (with negative RDPIs), FA indexes and CVs, either for individual plants or different layers, especially in fertile soil. Shading was more likely to increase CS (except for A. therophrasti) and FA and decrease CV; deep seeding increased CS of some species in full light, but decreased CS and FA of other species in shading (except for A. therophrasti). FA indexes more likely had positive correlations with mean value, CV and RDPIs of traits; correlations between CV and RDPIs can be positive, negative or insignificant. Correlations among the three variables were more likely positive or insignificant for traits of LS, CS and PL, but more likely negative or insignificant for PA. High density and infertile soil may favor more positive over negative correlations among variables. Results suggested higher levels of lamina FA more likely indicate higher growth rates of plants or modules. Developmental stability was more likely to have positive correlations with canalization, and negative correlations with plasticity, indicating certain common mechanisms associated with them. Environmental stresses can lead to greater phenotypic variations at different levels, facilitating cooperation between the three processes in dealing with environmental challenges.

scholarly journals The influence of microhabitat on the population dynamics of four herbaceous species in a semiarid area of northeastern Brazil

2016 ◽  
Vol 76 (1) ◽  
pp. 45-54 ◽  
Author(s):  
K. A. Silva ◽  
J. M. F. F. Santos ◽  
J. R. Andrade ◽  
E. N. Lima ◽  
U. P. Albuquerque ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Population Size ◽  
Mortality Rates ◽  
Dry Forest ◽  
Northeastern Brazil ◽  
Annual Rainfall ◽  
Herbaceous Species ◽  
Forest Fragment ◽  
Experimental Station ◽  
Over Time

Abstract Variation in annual rainfall is considered the most important factor influencing population dynamics in dry environments. However, different factors may control population dynamics in different microhabitats. This study recognizes that microhabitat variation may attenuate the influence of climatic seasonality on the population dynamics of herbaceous species in dry forest (Caatinga) areas of Brazil. We evaluated the influence of three microhabitats (flat, rocky and riparian) on the population dynamics of four herbaceous species (Delilia biflora, Commelina obliqua, Phaseolus peduncularis and Euphorbia heterophylla) in a Caatinga (dry forest) fragment at the Experimental Station of the Agronomic Research Institute of Pernambuco in Brazil, over a period of three years. D. biflora, C. obliqua and P. peduncularis were found in all microhabitats, but they were present at low densities in the riparian microhabitat. There was no record of E. heterophylla in the riparian microhabitat. Population size, mortality rates and natality rates varied over time in each microhabitat. This study indicates that different establishment conditions influenced the population size and occurrence of the four species, and it confirms that microhabitat can attenuate the effect of drought stress on mortality during the dry season, but the strength of this attenuator role may vary with time and species.

scholarly journals Root Characteristics of Herbaceous Species for Topsoil Stabilization in Restoration Projects

2017 ◽  
Vol 28 (7) ◽  
pp. 2074-2085 ◽  
Author(s):  
Gilardelli Federica ◽  
Vergani Chiara ◽  
Gentili Rodolfo ◽  
Bonis Anne ◽  
Chanteloup Pierre ◽  
...  
Keyword(s):  
Herbaceous Species ◽  
Root Characteristics
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