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GCE-LTER Data Set Summary
Accession:
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PLT-OTH-1509
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Research Theme:
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Botany (Research Study)
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Contributors:
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Steven C. Pennings, Wenwen Liu, Keith Maung-Douglass, Donald Strong, Yihui Zhang
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Title:
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Geographical variation in vegetative growth and sexual reproduction of the invasive Spartina alterniflora in China
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Abstract:
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We studied patterns in vegetative growth and sexual reproduction of introduced S. alterniflora at 22 sites at 11 geographic locations over a latitudinal gradient of ~2000 km from Tanggu (39.05 °N, high latitude) to Leizhou (20.90 °N, low latitude) in China. We further evaluated the basis of phenotypic differences by growing plants from across the range in a common garden for 2 growing seasons. We found distinct latitudinal clines in plant height, shoot density, and sexual reproduction across latitude. Some traits exhibited linear relationships with latitude; others exhibited hump-shaped relationships. We identified correlations between plant traits and abiotic conditions such as mean annual temperature, growing degree days, tidal range, and soil nitrogen content. However, geographic variation in all but one trait disappeared in the common garden, indicating that variation largely due to phenotypic plasticity. Only a slight tendency for latitudinal variation in seed set persisted for two years in the common garden, suggesting that plants may be evolving genetic clines for this trait. Note that these data were collected as part of a National Natural Science Foundation of China (NSFC) funded study led by Yihui Zhang in collaboration with GCE-LTER.
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DOI:
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10.6073/pasta/2a041623d0269ec604fa36f5936695d0
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Key Words:
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geography, introduced, invasive species, latitude, nitrogen, phenotype, plant communities, salinity, sexual reproduction, Spartina alterniflora
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LTER Core Area:
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Other Site Research
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Research Themes:
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Botany, Population Ecology |
Study Period:
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21-Sep-2012 to 20-Sep-2014
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Study Sites:
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ChinaSA -- China Spartina Study, China
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Species References:
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Spartina alterniflora |
Downloads:
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Data Table: PLT-OTH-1509-Abiotic (Abiotic measurements data table for data set PLT-OTH-1509, 150 records)
Access: Public (released 09-Sep-2015)
Metadata: Text (ESA FLED),
XML (Ecological Metadata Language)
Data Formats: Spreadsheet (CSV) [9.58kb], Text File [9.29kb], MATLAB (GCE Toolbox) [139.33kb], MATLAB (Variables) [121.71kb], Text Report [27.63kb]
Column List:(display)
Column |
Name |
Units |
Type |
Description |
1 |
Year |
YYYY |
integer |
Year the site was sampled |
2 |
Month |
M |
integer |
Month the site was sampled |
3 |
Day |
D |
integer |
Day the site was sampled |
4 |
Location |
none |
string |
Name of site |
5 |
Latitude |
degrees |
floating-point |
Degrees latitude north |
6 |
Longitude |
degrees |
floating-point |
Degrees longitude east |
7 |
Sample |
none |
integer |
Replicate |
8 |
Porewater_salinity |
PSU |
floating-point |
Porewater salinity |
9 |
Water_content |
percent |
floating-point |
Percent of wet soil mass made up of water |
10 |
Carbon |
percent |
floating-point |
Percent of dry mass made up of carbon |
11 |
Nitrogen |
percent |
floating-point |
Percent of dry mass made up of nitrogen |
12 |
C_to_N |
ratio |
floating-point |
Ratio of Carbon to Nitrogen |
Data Table: PLT-OTH-1509-Garden (Common Garden study data table for data set PLT-OTH-1509, 200 records)
Access: Public (released 09-Sep-2015)
Metadata: Text (ESA FLED),
XML (Ecological Metadata Language)
Data Formats: Spreadsheet (CSV) [11.66kb], Text File [12.03kb], MATLAB (GCE Toolbox) [147.59kb], MATLAB (Variables) [130.98kb], Text Report [30.81kb]
Column List:(display)
Column |
Name |
Units |
Type |
Description |
1 |
Year |
YYYY |
integer |
Year the plot was sampled |
2 |
Month |
M |
integer |
Month the plot was sampled |
3 |
Day |
D |
integer |
Day the plot was sampled |
4 |
Location |
none |
string |
Name of site where plant originated |
5 |
Latitude |
degrees |
floating-point |
Degrees latitude north |
6 |
Longitude |
degrees |
floating-point |
Degrees longitude east |
7 |
Plot_number |
none |
integer |
Replicate |
8 |
Plant_height |
cm |
floating-point |
Height of shoot |
9 |
Number_of_spikelets_per_inflorescence |
number |
floating-point |
Number of spikelets in flower |
10 |
Seed_set |
percent |
floating-point |
Percent seed set |
11 |
Number_of_shoots_per_PVC_tube |
number |
floating-point |
Number of shoots per pvc tube |
12 |
Percent_of_culms_flowering |
percent |
floating-point |
Percent of culms flowering |
13 |
Number_of_spikelets_per_PVC_tube |
number |
floating-point |
Number of spikelets per PVC tube |
Data Table: PLT-OTH-1509-Geography (Geographic Survey data table for data set PLT-OTH-1509, 200 records)
Access: Public (released 09-Sep-2015)
Metadata: Text (ESA FLED),
XML (Ecological Metadata Language)
Data Formats: Spreadsheet (CSV) [13.34kb], Text File [12.66kb], MATLAB (GCE Toolbox) [149.01kb], MATLAB (Variables) [131.74kb], Text Report [31.73kb]
Column List:(display)
Column |
Name |
Units |
Type |
Description |
1 |
Year |
YYYY |
integer |
Year the site was sampled |
2 |
Month |
M |
integer |
Month the site was sampled |
3 |
Day |
D |
integer |
Day the site was sampled |
4 |
Location |
none |
string |
Name of site |
5 |
Latitude |
degrees |
floating-point |
Degrees latitude north |
6 |
Longitude |
degrees |
floating-point |
Degrees longitude east |
7 |
Quadrat_number |
none |
integer |
Quadrate replicate |
8 |
Plant_height |
cm |
floating-point |
Height of shoot above the substrate |
9 |
Number_of_spikelets_per_inflorescence |
count |
integer |
Number of spikelets in flower |
10 |
Seed_set |
percent |
floating-point |
Percent seed set |
11 |
Number_of_shoots_per_square_meter |
count |
integer |
Number of shoots per square meter |
12 |
Percent_of_culms_flowering |
percent |
floating-point |
Percent of culms flowering |
13 |
Number_of_spikelets_per_square_meter |
count |
integer |
Number of spikelets per square meter |
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Statistics:
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Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS |
Citation:
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Pennings, Steven C. 2015. Geographical variation in vegetative growth and sexual reproduction of the invasive Spartina alterniflora in China. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/2a041623d0269ec604fa36f5936695d0
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