Abstract
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 298:1-8 (2005) - doi:10.3354/meps298001 Salt tolerance underlies the cryptic invasion of North American salt marshes by an introduced haplotype of the common reed Phragmites australis (Poaceae) Edward A. Vasquez1, Edward P. Glenn1,*, J. Jed Brown2, Glenn R. Guntenspergen3, Stephen G. Nelson1 1Environmental Research Laboratory, 2601 East Airport Drive, Tucson, Arizona 85706, USA2Delaware River Fisheries Coordinator, US Fish and Wildlife Service, 2610 Whitehall Neck Road, Smyrna, Delaware 19977, USA3US Geological Survey, USGS Patuxent Wildlife Research Center, 12100 Beech Forest Road, Suite 4039, Laurel, Maryland 20708-4039, USA *Corresponding author. Email: eglenn@ag.arizona.edu ABSTRACT: A distinct, non-native haplotype of the common reed Phragmites australis has become invasive in Atlantic coastal Spartina marshes. We compared the salt tolerance and other growth characteristics of the invasive M haplotype with 2 native haplotypes (F and AC) in greenhouse experiments. The M haplotype retained 50% of its growth potential up to 0.4 M NaCl, whereas the F and AC haplotypes did not grow above 0.1 M NaCl. The M haplotype produced more shoots per gram of rhizome tissue and had higher relative growth rates than the native haplotypes on both freshwater and saline water treatments. The M haplotype also differed from the native haplotypes in shoot water content and the biometrics of shoots and rhizomes. The results offer an explanation for how the M haplotype is able to spread in coastal salt marshes and support the conclusion of DNA analyses that the M haplotype is a distinct ecotype of P. australis. KEY WORDS: Salinity tolerance · Invasive species · Phragmites australis · Salt marshes Full text in pdf format NextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 298. Online publication date: August 15, 2005 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2005 Inter-Research.
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Claims 7
Claim · model-written summary
The invasive M reed haplotype retained half its growth potential up to 0.4 M NaCl.
- Taxon
- Phragmites australis
Phragmites australist0 - Material
- M haplotypee0
- Treatment
- 0.4 M NaCle0
- Outcome
- growth potentiale0
- Direction
- retainede0
- Value
- 50%e0
- Qualifier
- up toe0
- Setting
- greenhousee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M haplotype retained 50% of its growth potential up to 0.4 M NaCl”
e1“in greenhouse experiments”
t0“Phragmites australis”
Claim · model-written summary
The native F reed haplotype did not grow above 0.1 M NaCl.
- Taxon
- Phragmites australisPhragmites australist0
- Material
- Fe0
- Treatment
- 0.1 M NaCle0
- Outcome
- did not growe0
- Qualifier
- abovee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas the F and AC haplotypes did not grow above 0.1 M NaCl.”
t0“Phragmites australis”
Claim · model-written summary
The native AC reed haplotype did not grow above 0.1 M NaCl.
- Taxon
- Phragmites australisPhragmites australist0
- Material
- ACe0
- Treatment
- 0.1 M NaCle0
- Outcome
- did not growe0
- Qualifier
- abovee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas the F and AC haplotypes did not grow above 0.1 M NaCl.”
t0“Phragmites australis”
Claim · model-written summary
M reed produced more shoots per gram of rhizome than native haplotypes under freshwater and saline treatments.
- Taxon
- Phragmites australisPhragmites australist0
- Material
- M haplotypee0
- Treatment
- freshwater and saline water treatmentse0
- Outcome
- shoots per gram of rhizome tissuee0
- Direction
- moree0
- Comparator
- native haplotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M haplotype produced more shoots per gram of rhizome tissue and had higher relative growth rates than the native haplotypes on both freshwater and saline water treatments.”
t0“Phragmites australis”
Claim · model-written summary
M reed had higher relative growth rates than native haplotypes under freshwater and saline treatments.
- Taxon
- Phragmites australisPhragmites australist0
- Material
- M haplotypee0
- Treatment
- freshwater and saline water treatmentse0
- Outcome
- relative growth ratese0
- Direction
- highere0
- Comparator
- native haplotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M haplotype produced more shoots per gram of rhizome tissue and had higher relative growth rates than the native haplotypes on both freshwater and saline water treatments.”
t0“Phragmites australis”
Claim · model-written summary
M reed differed from native haplotypes in shoot water content and shoot and rhizome biometrics.
- Taxon
- Phragmites australisPhragmites australist0
- Material
- M haplotypee0
- Outcome
- shoot water content and the biometrics of shoots and rhizomese0
- Comparator
- native haplotypese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M haplotype also differed from the native haplotypes in shoot water content and the biometrics of shoots and rhizomes.”
t0“Phragmites australis”
Claim · model-written summary
The results explain M haplotype spread in coastal salt marshes and support its status as a distinct reed ecotype.
- Taxon
- P. australisPhragmites australise0
- Material
- M haplotypee0
- Outcome
- spread in coastal salt marshese0
- Qualifier
- a distinct ecotypee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results offer an explanation for how the M haplotype is able to spread in coastal salt marshes and support the conclusion of DNA analyses that the M haplotype is a distinct ecotype of P. australis.”
The same questions in other papers
sodium chloride · growth · Phragmites australis (common reed)Results differ
4 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- negative
4 papers more in this group
See all 8 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.