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Alaska 2004 Burns: Counts of live and dead seedlings of lodgepole pine in a post-fire seeding experiment at 39 sites

General Information
Data Package:
Local Identifier:knb-lter-bnz.813.2
Title:Alaska 2004 Burns: Counts of live and dead seedlings of lodgepole pine in a post-fire seeding experiment at 39 sites
Alternate Identifier:DOI PLACE HOLDER
Abstract:

This dataset contains counts of emerged seedlings of lodgepole pine from seeds sown in an experimental seeding study. The experiment started in 2005 at sites that burned in 2004 in interior Alaska. Records are from a set of 39 intensive study sites that were formerly dominated by black spruce along the Steese, Taylor, and Dalton highways. Seeds were sown in five 50 x 50 cm quadrats at each site in August 2005 and most emerged in early summer 2005. Seedling counts were measured for 6 years, in 2006, 2007 2008, and 2011. All pine seedlings were removed in 2011.

Short Name:knb-lter-bnz.813.2
Publication Date:2024-03-20
For more information:
Visit: http://www.lter.uaf.edu/data/data-detail/id/813
Visit: DOI PLACE HOLDER

Time Period
Begin:
2005-08-15
End:
2011-07-15

People and Organizations
Contact:Data Manager (Bonanza Creek LTER) [  email ]
Creator:Johnstone, Jill (Senior Investigator)
Creator:Walker, Xanthe 
Creator:Chapin, F Stuart (Principal Investigator (retired))
Organization:Bonanza Creek LTER

Data Entities
Data Table Name:
813_2004Burns_LP_seed_exp.csv
Description:
Contains counts of emerged live and dead pine seedlings within quadrats and sites following experimental seed sowing in 2005. Column names with seedling counts indicate the species (LP = lodgpole pine), the status (lv=live, dd=dead), and the census year (2006, 2007, 2008, 2011).
Other Name:
813_LP_from_seed_DC46_2008.jpg
Description:
Example of a relatively large and healthy lodgepole pine seedling, photographed in mid-summer 2008, which likely germinated in early summer 2006.
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-bnz/813/2/da919c06f3e0adf5a7d71d62057944bc
Name:813_2004Burns_LP_seed_exp.csv
Description:Contains counts of emerged live and dead pine seedlings within quadrats and sites following experimental seed sowing in 2005. Column names with seedling counts indicate the species (LP = lodgpole pine), the status (lv=live, dd=dead), and the census year (2006, 2007, 2008, 2011).
Number of Columns:15

Table Structure
Object Name:813_2004Burns_LP_seed_exp.csv
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Line Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 BurnSiteBlkPlotSp_sownLP_typeLP.lv.2006LP.dd.2006LP.lv.2007LP.dd.2007LP.lv.2008LP.dd.2008LP.lv.2011LP.dd.2011Notes
Column Name:Burn  
Site  
Blk  
Plot  
Sp_sown  
LP_type  
LP.lv.2006  
LP.dd.2006  
LP.lv.2007  
LP.dd.2007  
LP.lv.2008  
LP.dd.2008  
LP.lv.2011  
LP.dd.2011  
Notes  
Definition:Burn complexUnique site number1-5, experimental blocks within each site used for seeding experimentplots within blocks randomly assigned to seeding treatments (A-E)indication of species sown in a given block:plotindication of LP typeCount of live pine germinants made in 2006Count of dead pine germinants made in 2006 (directly observed)Count of live pine germinants made in 2007Count of dead pine germinants made in 2007 (directly observed or inferred from previous count)Count of live pine germinants made in 2008Count of dead pine germinants made in 2008 (directly observed or inferred from previous count)Count of live pine germinants made in 2011Count of dead pine germinants made in 2011 (directly observed or inferred from previous count)Notes on seed counts, including changes made during QA/QC process
Storage Type:string  
integer  
string  
string  
string  
string  
integer  
integer  
integer  
integer  
integer  
integer  
integer  
integer  
string  
Measurement Type:nominalnominalnominalnominalnominalnominalratioratioratioratioratioratioratiorationominal
Measurement Values Domain:
DefinitionBurn complex
DefinitionUnique site number
Definition1-5, experimental blocks within each site used for seeding experiment
Definitionplots within blocks randomly assigned to seeding treatments (A-E)
Definitionindication of species sown in a given block:plot
Definitionindication of LP type
Unitdimensionless
Typereal
Min0.000 
Max75.000 
Unitdimensionless
Typereal
Min0.000 
Max75.000 
Unitdimensionless
Typereal
Min0.000 
Max75.000 
Unitdimensionless
Typereal
Min0.000 
Max75.000 
Unitdimensionless
Typereal
Min0.000 
Max75.000 
Unitdimensionless
Typereal
Min0.000 
Max75.000 
Unitdimensionless
Typereal
Min0.000 
Max75.000 
Unitdimensionless
Typereal
Min0.000 
Max75.000 
DefinitionNotes on seed counts, including changes made during QA/QC process
Missing Value Code:                            
Codena
ExplMissing Value
Accuracy Report:                              
Accuracy Assessment:                              
Coverage:                              
Methods:                              

Non-Categorized Data Resource

Name:813_LP_from_seed_DC46_2008.jpg
Entity Type:jpg file
Description:Example of a relatively large and healthy lodgepole pine seedling, photographed in mid-summer 2008, which likely germinated in early summer 2006.
Physical Structure Description:
Object Name:813_LP_from_seed_DC46_2008.jpg
Externally Defined Format:
Format Name:jpg file
Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-bnz/813/2/97d30287bd19811545510a7d065bc9b4

Data Package Usage Rights

Data Use

This work has been produced as part of the Long Term Ecological Research Program and data users should adhere to the Data Use Agreement of the Long Term Ecological Research Network. The consumer of these data (“Data User” herein) has an ethical obligation to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or coauthorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available “as is.” The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

Citation

It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User should properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator(s), Year of Data Publication, Title of Dataset, Publisher, Dataset identifier, Dataset URL, Dataset DOI. For Example: Van Cleve, Keith; Chapin, F. Stuart; Ruess, Roger W. 2016. Bonanza Creek Experimental Forest: Hourly Temperature (sample, min, max) at 50 cm and 150 cm from 1988 to Present, Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:1, http://www.lter.uaf.edu/data/data-detail/id/1. doi:10.6073/pasta/725db90d86686be13e6d6b2da5d61217.

Acknowledgement

The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. For example: Data are provided by the Bonanza Creek LTER, a partnership between the University of Alaska Fairbanks, and the U.S. Forest Service. Significant funding for collection of these data was provided by the National Science Foundation Long-Term Ecological Research program (NSF Grant numbers DEB-2224776, DEB-1636476, DEB-1026415, DEB-0620579, DEB-0423442, DEB-0080609, DEB-9810217, DEB-9211769, DEB-8702629) and by the USDA Forest Service, Pacific Northwest Research Station (Agreement # RJVA-PNW-20-JV-11261932-018).

Notification

The Data User will notify the Data Set Contact when any derivative work or publication based on or derived from the Data Set is distributed.

Collaboration

The Data Set has been released in the spirit of open scientific collaboration. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

Disclaimer

While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available in its present condition. The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.

Keywords

By Thesaurus:
Successionfire effects, postfire recruitment, seedling establishment, seedlings, tree seedlings, biodiversity, Pinus contorta, migration

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package
Description:

Experimental Design

The study area consisted of three large burn complexes located in interior Alaska (for a map, see Johnstone et al. 2009). The burned areas were located within a large region of continuous boreal for-est with extensive coverage of black spruce (Picea mariana) forests, and all sites had been dominated by black spruce when they burned. From a broader network of 90 study sites (see Johnstone et al. 2010), we selected 32 sites represnting different combinations of fire severity and site moisture. We also included 7 high-elevation sites located close to tree-line. Seeds were sown at each of the 39 sites at the end of the first growing season after fire, and were paired with experimental seeding treatments of native species (Brown et al. 2015) to examine seedling responses to fire and environmental conditions.

Methods

FIELD: In late summer (mid-August) of 2005, seeds of lodgepole pine (originally collected at Scout Lake near Whitehorse, Yukon) were sown in five 50 cm x 50 cm plots within each of 39 intensive study sites that had burned in 2004. The seed application rate was ~75 viable seeds per quadrat. This experiment was co-located with seeding and transplant studies that propagated native species present in the study region (Black spruce, white spruce, paper birch, and aspen). All seedling counts in 2006-2008 were done by Jill Johnstone. Counts in 2007 & 2008 were made with knowledge of the previous year's counts, so that plots could be double checked in the field when counts were different between years. Counts in 2011 were made by research technicians, with no knowledge of previous year's counts. Dead seedlings were recorded in the notes when dead (brown) stems were encountered. Dead seedlings were always removed from a plot when they were found so they could not be re-counted.

Sampling Area and Study Extent
Sampling Description:

Sampling Frequency

Annual

Sampling Extent:

Time Period
Begin:
2005-08-15
End:
2011-07-15

People and Organizations

Publishers:
Organization:Environmental Data Initiative
Email Address:
info@edirepository.org
Web Address:
https://edirepository.org
Id:https://ror.org/0330j0z60
Creators:
Individual: Jill Johnstone
Position:Senior Investigator
Address:
Department of Biology; University of Saskatchewan; 112 Science Place,
Saskatoon, Saskatchewan S7N 5E2 Canada
Phone:
(306) 966-4421 (voice)
Phone:
(306) 966-4461 (fax)
Email Address:
jfjohnstone@alaska.edu
Web Address:
http://npelusask.weebly.com/
Individual: Xanthe Walker
Address:
Northern Arizona University: Ecosystem Science and Society (Ecoss) PO Box 5620,
Flagstaff, AZ 86011 United States
Email Address:
xanthe.walker@nau.edu
Web Address:
https://ecoss.nau.edu/team/xanthe-walker/
Individual: F Stuart Chapin
Position:Principal Investigator (retired)
Address:
Institute of Arctic Biology: University of Alaska Fairbanks,
Fairbanks, AK 99775 United States
Phone:
(907) 455-6408 (voice)
Phone:
(907) 474-6967 (fax)
Email Address:
terry.chapin@alaska.edu
Web Address:
https://sites.google.com/alaska.edu/f-stuart-chapin-iii-terry/
Organization:Bonanza Creek LTER
Address:
Boreal Ecology Cooperative Research Unit,
University of Alaska Fairbanks,
P.O. Box 756780,
Fairbanks, AK 99775 USA
Phone:
907-474-6364 (voice)
Phone:
907-474-6251 (fax)
Email Address:
uaf-bnz-im-team@alaska.edu
Web Address:
http://www.lter.uaf.edu
Contacts:
Organization:Bonanza Creek LTER
Position:Data Manager
Address:
Boreal Ecology Cooperative Research Unit,
University of Alaska Fairbanks,
P.O. Box 756780,
Fairbanks, AK 99775 USA
Phone:
907-474-6364 (voice)
Phone:
907-474-6251 (fax)
Email Address:
uaf-bnz-im-team@alaska.edu
Web Address:
http://www.lter.uaf.edu
Metadata Providers:
Organization:Bonanza Creek LTER
Position:Data Manager
Address:
Boreal Ecology Cooperative Research Unit,
University of Alaska Fairbanks,
P.O. Box 756780,
Fairbanks, AK 99775 USA
Phone:
907-474-6364 (voice)
Phone:
907-474-6251 (fax)
Email Address:
uaf-bnz-im-team@alaska.edu
Web Address:
http://www.lter.uaf.edu

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period
Begin:
2005-08-15
End:
2011-07-15
Geographic Region:
Description:Dataset geographic description information is unavailable. {datafile/geoCoverage is empty}
Bounding Coordinates:
Northern:  66.3151678Southern:  63.3970094
Western:  -150.40549Eastern:  -142.0202229

Project

Parent Project Information:

Title:The Bonanza Creek LTER
Personnel:
Individual: Keith Van Cleve
Organization:Bonanza Creek LTER
Position:Lead Principal Investigator
Role:Principal Investigator
Individual: F.S. Stuart Chapin
Organization:Bonanza Creek LTER
Position:Lead Principal Investigator
Address:
Department of Biology and Wildlife; Institute of Arctic Biology: University of Alaska Fairbanks 193 Arctic Health P.O. Box 757000,
Fairbanks, AK 99775 United States
Phone:
(907) 455-6408 (voice)
Phone:
(907) 474-6967 (fax)
Email Address:
terry.chapin@alaska.edu
Web Address:
http://terrychapin.org/
Role:Principal Investigator
Individual: Roger W. Ruess
Organization:Bonanza Creek LTER
Position:Lead Principal Investigator
Address:
Institute of Arctic Biology University of Alaska Fairbanks P.O. Box 757000,
Fairbanks, AK 99775-0180 United States
Phone:
(907) 474-7153 (voice)
Phone:
(907) 474-6967 (fax)
Email Address:
rwruess@alaska.edu
Web Address:
http://www.iab.uaf.edu/~roger_ruess/
Role:Principal Investigator
Funding:

NSF Grant numbers DEB-1636476, DEB-1026415, DEB-0620579, DEB-0423442, DEB-0080609, DEB-9810217, DEB-9211769, DEB-8702629

USDA Forest Service, Pacific Northwest Research Station (Agreement # RJVA-PNW-01-JV-11261952-231)

Maintenance

Maintenance:
Description:

corrections

Data were compared between years when entering new data to ensure internal consistency and correct for errors such as a seedling not being noticed in 2007, but counted in 2006 and 2008. Further QA/QC involved checking that the number of total live + total dead recorded in one year was not less than the total live recorded in the previous year. Instances where this occurred were either adjusted for seedlings being variably assigned to adjacent subplots (seedlings on the plot edges were sometimes allocated to different plots) or additional dead seedlings added in (assuming that some dead seedlings were never observed as carcasses). Monotonic increases in counts were allowed and attributed to new recruitment. In 2011, the potential for new recruits was verified by comparing with diameter measurements (seedlings with large diameters are unlikely to be new recruits).

additional

Associated datasets in the BNZ archives are listed with the header "Alaska 2004 Burns".

Status

Completed

Frequency:
Other Metadata

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