Nutrient addition increases the capacity for division of labor and the benefits of clonal integration in an invasive plant

The clonal invasion of Wedelia trilobata (L.) Hitch has spread to edges of mangrove areas, which leads to the formation of flooding-stressed areas such as waterlogged and submergence. This study purpose to investigate the clonal integration mechanism of W. trilobata in stress of flooding type combination. This study was conducted in greenhouse with four combinations of flooding treatment on mother ramet (MR) and daughter ramet (DR) for 25 days. Several parameters were measured are shoot growth, relative growth rate (RGR), biomass, biomass allocation, adventitious root growth, and lenticel hypertrophy. The highest clonal performance was observed for the combination of field capacity (MR)- waterlogged (DR). The lowest performance was observed for the combination of waterlogged (MR)-submergence (DR). There were decreases in the shoot growth, RGR, and biomass allocation in mother ramet. However, adventitious root growth and lenticel hypertrophic increased in daughter ramet. The increase of flooding pressure suppresses the performance of clonal plants. Clonal integration buffered clonal plants by improving the performance of daughter ramet in the combination of flooding type. The clonal integration has facilitated W. trilobata invasion in inundated areas.

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Effects of Nitrogen Enrichment and Clonal Integration on the Expansion of Alternanthera philoxeroides in Aquatic Habitats

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.955-959.352 ◽

2014 ◽

Vol 955-959 ◽

pp. 352-355 ◽

Cited By ~ 1

Author(s):

Wen Juan Ding ◽

Hua Yong Zhang

Keyword(s):

Clonal Growth ◽

Invasive Plant ◽

Synergistic Effects ◽

Alternanthera Philoxeroides ◽

Clonal Integration ◽

Aquatic Environments ◽

Nitrogen Enrichment ◽

Aquatic Habitats ◽

Expansion Process ◽

Nitrogen Levels

This study examined the effects of nitrogen enrichment and clonal integration on the growth and expansion process from terrestrial to aquatic habitats of the amphibious and invasive plant Alternanthera philoxeroides. The clonal fragments of A. philoxeroides were subjected to three nitrogen levels of 10/3, 10 and 30 mg/l N with the stolon connections either severed or left connected. The results suggested that nitrogen enrichment increased the clonal growth and expansion of A. philoxeroides in aquatic habitats. Clonal integration supports the expansion of A. philoxeroides from terrestrial to aquatic environments. And A. philoxeroides will be more invasive in nitrogen enriched waters due to the synergistic effects of nitrogen enrichment and clonal integration.

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Women's Work in Rural Ecuador: Multiple Resource Strategies and the Gendered Division of Labor

PsycEXTRA Dataset ◽

10.1037/e596402011-003 ◽

1997 ◽

Cited By ~ 1

Author(s):

Lauris McKee

Keyword(s):

Division Of Labor ◽

Women's Work ◽

Women’S Work ◽

Gendered Division Of Labor ◽

Multiple Resource

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Women's Earnings, Decision Making, and Perceptions of Justice in Division of Labor

PsycEXTRA Dataset ◽

10.1037/e627372009-001 ◽

2009 ◽

Author(s):

Claudia Andrade

Keyword(s):

Decision Making ◽

Division Of Labor ◽

Women's Earnings

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Children’s gender development: Associations with parental sexual orientation, division of labor, and gender ideology.

Psychology of Sexual Orientation and Gender Diversity ◽

10.1037/sgd0000242 ◽

2017 ◽

Vol 4 (4) ◽

pp. 438-450 ◽

Cited By ~ 9

Author(s):

Jason Sumontha ◽

Rachel H. Farr ◽

Charlotte J. Patterson

Keyword(s):

Sexual Orientation ◽

Division Of Labor ◽

Gender Ideology ◽

Gender Development ◽

And Gender

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Competition Policy under Economic Crisis

Voprosy Ekonomiki ◽

10.32609/0042-8736-2009-3-54-69 ◽

2009 ◽

pp. 54-69 ◽

Cited By ~ 1

Author(s):

A. Shastitko ◽

S. Avdasheva ◽

S. Golovanova

Keyword(s):

Division Of Labor ◽

Economic Crisis ◽

Industrial Policy ◽

Competition Policy ◽

Transition Economy ◽

Economic Recession ◽

Price Rigidity ◽

Key Factor ◽

Policy Measures ◽

The Impact

The analysis of competition policy under economic crisis is motivated by the fact that competition is a key factor for the level of productivity. The latter, in its turn, influences the scope and length of economic recession. In many Russian markets buyers' gains decline because of the weakness of competition, since suppliers are reluctant to cut prices in spite of the decreasing demand. Data on prices in Russia and abroad in the second half of 2008 show asymmetric price rigidity. At least two questions are important under economic crisis: the 'division of labor' between pro-active and protective tools of competition policy and the impact of anti-crisis policy on competition. Protective competition policy is insufficient in transition economy, especially in the days of crisis it should be supplemented with the well-designed industrial policy measures which do not contradict the goals of competition. The preferable tools of anti-crisis policy are also those that do not restrain competition.

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