Establishment and Competitive Ability of Nelumbo Lutea in Relation to Myriophyllum Spicatum

Limitations from reduced light and increasing water depth on Nelumbo lutea seedlings were determined in tank experiments. Survival was high in all tested light levels. Total biomass increased significantly with increasing light. Biomass allocation shifted significantly to root production between 3 and 6 weeks in the 10 and 24% levels. Survival decreased with increasing planting depth, and biomass of survivors reduced significantly between 0.5, 1.0, and 1.5 m depths. Nelumbo lutea and Myriophyllum spicatum populations were monitored for one season in a 0.7 ha pond to track changes in species dominance. Myriophyllum spicatum dominated early, and N. lutea dominated from July through October, suppressing M. spicatum at all depths. Competitive interactions between N. lutea and M. spicatum were investigated for two seasons in a container experiment situated within a pond. Where established, N. lutea dominated in the presence of M. spicatum. However, N. lutea could not be established in depths greater than 1 meter.

Grantor dc:publisher

University of North Texas

Year dc:date

2000

Author dc:creator

• Snow, Joe R.

Contributors dc:contributor

• Doyle, Robert D.
• Smart, R. Michael
• Dickson, Kenneth L.

• Nelumbo lutea.
• Eurasian watermilfoil.
• Aquatic ecology.
• water depth
• aquatic ecosystem
• Nelumbo lutea
• Myriophyllum
• spicatum

Statement dc:rights

• Public
• Copyright
• Snow, Joe R.
• Copyright is held by the author, unless otherwise noted. All rights reserved.

Language dc:language

English

Identifier

oclc: 47670340
untcat: b2305502
https://digital.library.unt.edu/ark:/67531/metadc2694/
ark: ark:/67531/metadc2694

OAI identifier oai:identifier

info:ark/67531/metadc2694