Data Package Metadata   View Summary

Herbivory of eight common species at El Verde from 1994 to 1996

General Information
Data Package:
Local Identifier:knb-lter-luq.99.447197
Title:Herbivory of eight common species at El Verde from 1994 to 1996
Alternate Identifier:DOI PLACE HOLDER
Abstract:

In seasonal and aseasonal tropical forests, leaf production is often highly synchronous, concentrating herbivore resources in only a few months. As a result levels of herbivory on young leaves can vary throughout the year. To determine the importance of food availability on herbivory, leaf phenology and leaf damage were studied in an aseasonal forest, Luquillo Experimental Forest (LEF) in Puerto Rico. Leaf production was associated with an increase in light availability but leaf damage was relatively constant throughout the year. Leaf phenology and leaf damage was compared between LEF and a seasonal forest, Barro Colorado Island (BCI) Panamá. In BCI leaf production was associated with increases in water availability and leaf damage was significantly higher on leaves produced after the peak in leaf production. Leaf damage was significantly lower in LEF in comparison with BCI. Differences in the trophic structure between the two forests may explain the differences in levels of leaf damage. The density of frogs and lizards in LEF was approximately an order of magnitude greater than in BCI and these predators may limit the populations of herbivores and reduce leaf damage levels.

Publication Date:2011-06-03
Language:English

Time Period
Begin:
1994-11-01
End:
1996-09-01

People and Organizations
Contact:Angulo, Maria del Pilar  [  email ]
Creator:Angulo, Maria del Pilar 
Associate:Melendez-Colom, Eda (University of Puerto Rico, Rio Piedras Campus, data manager)
Associate:Aide, Mitchell 

Data Entities
Data Table Name:
Herbivory Nov 1994 to Oct 1995 on several paths along and across the LFDP
Description:
Herbivory on plants from November 1994 to October 1995 on several paths along and across the Luquillo Forest Dynamics Plot at El Verde, Puerto Rico
Data Table Name:
Herbivory Nov 1995 to Oct 1996 on several paths along and across the LFDP
Description:
Herbivory data from November1995 to October 1996 on several paths along and across the Luquillo Forest Dynamics Plot at El Verde, Puerto Rico
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/99/447197/d86b1672355f5c27f468f30f2c32a5cd
Name:Herbivory Nov 1994 to Oct 1995 on several paths along and across the LFDP
Description:Herbivory on plants from November 1994 to October 1995 on several paths along and across the Luquillo Forest Dynamics Plot at El Verde, Puerto Rico
Number of Records:242
Number of Columns:8

Time Period
Begin:
1994-11-01
End:
1996-10-01
Methods and protocols used in the collection of this data package
Description:

<p>Sampling Description:</p><p>Array</p>


Table Structure
Object Name:hbv9495.csv
Size:9697
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 Plant species code-six letter code in CAPSTag number of the plantMonth of sampling or observationsYear of measurement or observationNumber of leaves produced per plant with a maximum of 10 leavesTotal area of leaves producedTotal area of leaves removedPercent of area of leaves removed
Column Name:Species  
TAGNUMBER  
Month  
YEAR  
LEAVESNUMBER  
LEAVESAREA  
HBV  
%HBV  
Definition:A six letter code GGGSSS; where the first three are the first 3 letters of the genus; and the last three are the 3 first letters of the species (all in upper case). If blank, data is missing.Tag number attached to the plant for identification purposes for this project. Twenty individuals were chosen for each speciesA 3-letter code corresponding to the first three letters of the month of date when sampling and/or observations were performed. For data set "CTE Trace gases" represent the month where gas samples were sampled over 5 time points and injected immediately into pre-evacuated vials sealed with geo-microbial sept. For all the files in "Soil Microbial DNA-Bacteria" data set is the month where soil sample was collected.Four digit number of the year of measurement or observationTotal number of leaves (maximum of ten) produced by an individual in a given monthTotal area of leaves produced by an individual in a given monthTotal area of leaves removed by insects for an individual in a given monthPercent of area of leaves removed by insects for an individual in a given month: (HBV/LEAVESAREA) * 100 i.e. (seventh column/sixth column X 100)
Storage Type:string  
  string  
string  
       
Measurement Type:nominalrationominalnominalratioratioratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeCASARB
DefinitionCasearea arborea
Source
Code Definition
CodeDACEXC
DefinitionDacryodes excelsa
Source
Code Definition
CodeMANBID
DefinitionManilkara bidentata
Source
Code Definition
CodePALRIP
DefinitionPalicourea riparia
Source
Code Definition
CodePIPGLA
DefinitionPiper glabrecens
Source
Code Definition
CodeGUAGUI
DefinitionGuarea guidonea
Source
Code Definition
CodeSLOBER
DefinitionSloanea berteriana
Source
Code Definition
CodeTABHET
DefinitionTabebuia heterophilla
Source
Code Definition
CodeASPSER
DefinitionAsplenium serratum
Source
Code Definition
CodeBLEOCC
DefinitionBlechnum occidentale
Source
Code Definition
CodeCYABOR
DefinitionCyathea borinquena
Source
Code Definition
CodeNEPRIV
DefinitionNephrolepis rivularis
Source
Code Definition
CodePOLCHN
DefinitionPolybotrya cervina
Source
Code Definition
CodePOLLYC
DefinitionPolypodium lycopodioides?
Source
Code Definition
CodePOLPIL
DefinitionPolypodium piloselloides?
Source
Code Definition
CodeTHEDEL
DefinitionThelypteris deltoidea
Source
Code Definition
CodeTHENOR
DefinitionThelypteris spp.?
Source
Code Definition
CodeCYAARB
DefinitionCyathea arborea?
Source
Code Definition
CodeLINLAN
DefinitionLindsaea lancea
Source
Code Definition
CodePOLLAT
DefinitionPolypodium latum?
Source
Code Definition
CodeTHEDEN
DefinitionThelypteris deltoidea
Source
Code Definition
CodeELARIG
DefinitionElaphoglossum rigidum
Source
Code Definition
CodePOL
DefinitionPolypodium spp.?
Source
Unitnumber
Typereal
Min
Max20 
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeJAN
DefinitionJanuary
Source
Code Definition
CodeFEB
DefinitionFebuary
Source
Code Definition
CodeMAR
DefinitionMarch
Source
Code Definition
CodeAPR
DefinitionApril
Source
Code Definition
CodeMAY
DefinitionMay
Source
Code Definition
CodeJUN
DefinitionJune
Source
Code Definition
CodeJUL
DefinitionJuly
Source
Code Definition
CodeAUG
DefinitionAugust
Source
Code Definition
CodeSEP
DefinitionSeptember
Source
Code Definition
CodeOCT
DefinitionOctober
Source
Code Definition
CodeNOV
DefinitionNovember
Source
Code Definition
CodeDEC
DefinitionDecember
Source
DefinitionFour digit number of the year of measurement or observation
Unitnumber
Typereal
Min
Max10 
UnitsquareCentimeter
Precision0.1
Typereal
Min
Max
UnitsquareCentimeter
Precision0.1
Typereal
Unitpercent
Typereal
Min
Max100 
Missing Value Code:                
Accuracy Report:                
Accuracy Assessment:                
Coverage:                
Methods:                

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/99/447197/dda5af8d0a1743752d50de7e72b80a1a
Name:Herbivory Nov 1995 to Oct 1996 on several paths along and across the LFDP
Description:Herbivory data from November1995 to October 1996 on several paths along and across the Luquillo Forest Dynamics Plot at El Verde, Puerto Rico
Number of Records:162
Number of Columns:8

Time Period
Begin:
1994-11-01
End:
1996-09-01
Methods and protocols used in the collection of this data package
Description:

<p>Sampling Description:</p><p>Array</p>


Table Structure
Object Name:hbv9596.csv
Size:6576
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 Plant species code-six letter code in CAPSTag number of the plantMonth of sampling or observationsYear of measurement or observationNumber of leaves produced per plant with a maximum of 10 leavesTotal area of leaves producedTotal area of leaves removedPercent of area of leaves removed
Column Name:Species  
TAGNUMBER  
Month  
YEAR  
LEAVESNUMBER  
LEAVESAREA  
HBV  
%HBV  
Definition:A six letter code GGGSSS; where the first three are the first 3 letters of the genus; and the last three are the 3 first letters of the species (all in upper case). If blank, data is missing.Tag number attached to the plant for identification purposes for this project. Twenty individuals were chosen for each speciesA 3-letter code corresponding to the first three letters of the month of date when sampling and/or observations were performed. For data set "CTE Trace gases" represent the month where gas samples were sampled over 5 time points and injected immediately into pre-evacuated vials sealed with geo-microbial sept. For all the files in "Soil Microbial DNA-Bacteria" data set is the month where soil sample was collected.Four digit number of the year of measurement or observationTotal number of leaves (maximum of ten) produced by an individual in a given monthTotal area of leaves produced by an individual in a given monthTotal area of leaves removed by insects for an individual in a given monthPercent of area of leaves removed by insects for an individual in a given month: (HBV/LEAVESAREA) * 100 i.e. (seventh column/sixth column X 100)
Storage Type:string  
  string  
string  
       
Measurement Type:nominalrationominalnominalratioratioratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeCASARB
DefinitionCasearea arborea
Source
Code Definition
CodeDACEXC
DefinitionDacryodes excelsa
Source
Code Definition
CodeMANBID
DefinitionManilkara bidentata
Source
Code Definition
CodePALRIP
DefinitionPalicourea riparia
Source
Code Definition
CodePIPGLA
DefinitionPiper glabrecens
Source
Code Definition
CodeGUAGUI
DefinitionGuarea guidonea
Source
Code Definition
CodeSLOBER
DefinitionSloanea berteriana
Source
Code Definition
CodeTABHET
DefinitionTabebuia heterophilla
Source
Code Definition
CodeASPSER
DefinitionAsplenium serratum
Source
Code Definition
CodeBLEOCC
DefinitionBlechnum occidentale
Source
Code Definition
CodeCYABOR
DefinitionCyathea borinquena
Source
Code Definition
CodeNEPRIV
DefinitionNephrolepis rivularis
Source
Code Definition
CodePOLCHN
DefinitionPolybotrya cervina
Source
Code Definition
CodePOLLYC
DefinitionPolypodium lycopodioides?
Source
Code Definition
CodePOLPIL
DefinitionPolypodium piloselloides?
Source
Code Definition
CodeTHEDEL
DefinitionThelypteris deltoidea
Source
Code Definition
CodeTHENOR
DefinitionThelypteris spp.?
Source
Code Definition
CodeCYAARB
DefinitionCyathea arborea?
Source
Code Definition
CodeLINLAN
DefinitionLindsaea lancea
Source
Code Definition
CodePOLLAT
DefinitionPolypodium latum?
Source
Code Definition
CodeTHEDEN
DefinitionThelypteris deltoidea
Source
Code Definition
CodeELARIG
DefinitionElaphoglossum rigidum
Source
Code Definition
CodePOL
DefinitionPolypodium spp.?
Source
Unitnumber
Typereal
Min
Max20 
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeJAN
DefinitionJanuary
Source
Code Definition
CodeFEB
DefinitionFebuary
Source
Code Definition
CodeMAR
DefinitionMarch
Source
Code Definition
CodeAPR
DefinitionApril
Source
Code Definition
CodeMAY
DefinitionMay
Source
Code Definition
CodeJUN
DefinitionJune
Source
Code Definition
CodeJUL
DefinitionJuly
Source
Code Definition
CodeAUG
DefinitionAugust
Source
Code Definition
CodeSEP
DefinitionSeptember
Source
Code Definition
CodeOCT
DefinitionOctober
Source
Code Definition
CodeNOV
DefinitionNovember
Source
Code Definition
CodeDEC
DefinitionDecember
Source
DefinitionFour digit number of the year of measurement or observation
Unitnumber
Typereal
Min
Max10 
UnitsquareCentimeter
Precision0.1
Typereal
Min
Max
UnitsquareCentimeter
Precision0.1
Typereal
Unitpercent
Typereal
Min
Max100 
Missing Value Code:                
Accuracy Report:                
Accuracy Assessment:                
Coverage:                
Methods:                

Data Package Usage Rights

Data Policies

LTER Network Data Access Policy, Data Access Requirements, and General Data Use Agreement
approved by the LTER Coordinating Committee April 6, 2005

Long Term Ecological Research Network Data Access Policy

The LTER data policy includes three specific sections designed to express shared network policies regarding the release of LTER data products, user registration for accessing data, and the licensing agreements specifying the conditions for data use.

LTER Network Data Release Policy

Data and information derived from publicly funded research in the U.S. LTER Network, totally or partially from LTER funds from NSF, Institutional Cost-Share, or Partner Agency or Institution where a formal memorandum of understanding with LTER has been established, are made available online with as few restrictions as possible, on a nondiscriminatory basis. LTER Network scientists should make every effort to release data in a timely fashion and with attention to accurate and complete metadata.

Data[current-user:created]

There are two data types:

Type I – data are to be released to the general public according to the terms of the general data use agreement (see Section 3 below) within 2 years from collection and no later than the publication of the main findings from the dataset and,

Type II - data are to be released to restricted audiences according to terms specified by the owners of the data. Type II data are considered to be exceptional and should be rare in occurrence. The justification for exceptions must be well documented and approved by the lead PI and Site Data Manager. Some examples of Type II data restrictions may include: locations of rare or endangered species, data that are covered under prior licensing or copyright (e.g., SPOT satellite data), or covered by the Human Subjects Act. Researchers that make use of Type II Data may be subject to additional restrictions to protect any applicable commercial or confidentiality interests.

While the spirit of this document is to promote maximum availability for ecological data in either Type I or II status, there are criteria by which priority for data release may be determined. Primary observations collected for core research activities directly supported by LTER research must receive the highest priority for data release. Data collected by other sources to which LTER supported research has added value is also a high priority Other types of data including non-LTER data that was acquired for LTER research, student thesis data, schoolyard LTER data, or legacy data that already suffer from inadequate documentation or format obsolescence may be ranked a lower priority by a site with justifications provided in their data management policy. Finally, some data may be determined of lowest priority for archiving on the grounds that they are interim data that led to final products that carry the scientific value. These might include data files created during stages within an analytic workflow, raw or replicate data values that were subsequently aggregated or processed for release, or individual outputs from stochastic models.

Metadata

Metadata documenting archived/online data sets of all types listed above will be made available when, or before, the dataset itself is released according to the terms above.
All metadata will be publicly available regardless of any restrictions on access to the data.
All metadata will follow LTER recommended standards and will minimally contain adequate information on proper citation, access, contact information, and discovery. Complete information including methods, structure, semantics, and quality control/assurance is expected for most datasets and is strongly encouraged.
LTER Network Data Access Requirements

The access to all LTER data is subject to requirements set forth by this policy document to enable data providers to track usage, evaluate its impact in the community, and confirm users' acceptance of the terms of acceptable use. These requirements are standardized across the LTER Network to provide contractual exchange of data between Site Data Providers, Network Data Providers, and Data Users that can be encoded into electronic form and exchanged between computers. This will allow direct access to data via a common portal once these requirements have been fulfilled. The following information may be required directly or by proxy prior to the transference of any data object:

Registration

1. Name

2. Affiliation

3. Email Address

4. Full Contact Information

Acceptance of the General Public Use Agreement or Restricted Data Use Agreement, as applicable.
A Statement of Intended Use that is compliant with the above agreements. Such statements may be made submitted explicitly or made implicitly via the data access portal interface.

General Data Use Agreement

LUQ  data and metadata is released under public domain:  CC BY – Attribution.

Conditions of Use

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.
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 "as is". 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.[current-user:name]

Keywords

By Thesaurus:
Core Areaspopulations
LTER Controlled Vocabularydisciplines, ecology, community dynamics, measurements, spatial properties, land use, organizational units, communities, processes, biological processes, species interactions, herbivory, disturbance

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:

Leaf phenology and leaf damage were measured on plants (1-2 m in height) in the understory. Plants were located in plots along La Prieta, upper Sonadora and Ox cart trails. Two shrubs, Palicourea riparia (Rubiaceae) and Piper glabrecens (Piperaceae) and six tree species, Casearia arborea (Flacourtiaceae), Dacryodes excelsa (Burseraceae), Guarea guidonia (Meliaceae), Manilkara bidentata (Sapotaceae), Sloanea berteriana (Elaeocarpaceae) and Tabebuia heterophylla (Bignoneaceae) were studied. These species were chosen because they are among the most common species in at this site (Zimmerman et al. 1994). There have been few studies on the herbivore community of LEF, but Schowalter (1994) collected the major invertebrates associated with five common tree species and found that Lepidoptera, Coleoptera and Homoptera (cicadellids principally) were the most abundant herbivores, that are the principal herbivores in different type of forest (Duckett, pers. comm.).  In addition different species of walking sticks (Phasmida) are also important herbivores in LEF (Garrison & Willig 1996).
LEAF PHENOLOGY AND LEAF DAMAGE CENSUSES. --The study was conducted from November 1994 to October 1995 (year one) and from November 1995 to October 1996 (year two). Twenty individuals of each species were marked. All individuals were located in the understory. Each month, all new, full expanded leaves were counted and a maximum of ten leaves per plant was marked with plastic telephone wire. One month later, leaf area and area damaged were measured for all marked leaves using a plastic grid. Although this method may overestimate consumption by herbivores and underestimate the effect on leaf area (Coleman & Leonard 1995), there are few alternatives for determining multispecies patterns of leaf damage in tropical forest. In addition, the leaf production and leaf damage data were compared with data from BCI (Aide 1993) which were obtained using the same methodology.

ANALYSIS. --Leaves produced within a month by a single individual were considered independent events (leaf cohorts). For each individual, the monthly proportion of annual leaf production was calculated. For estimating the annual pattern of leaf production for the species, average leaf production of the twenty individuals was calculated for every month. Patterns of monthly leaf production for the eight species was calculated by averaging the means of each species. Patterns of leaf phenology were compared between years using a Kolmogorov-Smirnov test (Ott 1993). Cross correlations were performed to determine if rainfall, light intensity or day length were important cues for leaf production (Statistix 1996). A maximum lag time of two months was used for this analysis.
Monthly percent leaf damage was calculated for each leaf cohort. Total damaged area on the marked leaves was divided by the total potential leaf area. If a leaf was missing, the average size of the remaining leaves were calculated and the area was added to the total damaged area and to the total potential leaf area. All species showed a peak in leaf production during May - June and percent leaf damage was compared between the cohorts produced during the month of peak leaf production and the cohorts produced during the remaining months. The same comparison was made by combining data from all species. Percent leaf damage was compared between years using the Mann-Whitney U test.
Patterns of leaf production and leaf damage were compared between LEF and data obtained from BCI (32 species; 21 families) in 1987 (Aide 1993). Leaf phenology was compared using the Kolmogorov-Smirnov test. The Mann-Whitney U test was used for comparing leaf damage. Because all LEF species had synchronous leaf production, a second comparison of leaf damage was made only with the synchronous species from BCI (10 spp.).

These methods, instrumentation, and/or protocols apply to the data table Herbivory Nov 1994 to Oct 1995 on several paths along and across the LFDP:

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

<p>Sampling Description:</p><p>Array</p>

These methods, instrumentation, and/or protocols apply to the data table Herbivory Nov 1995 to Oct 1996 on several paths along and across the LFDP:

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

<p>Sampling Description:</p><p>Array</p>

People and Organizations

Creators:
Individual: Maria del Pilar Angulo
Address:
Department of Biology University of Puerto Rico, Rio Piedras Campus PO Box 23360,
San Juan, PR 00936 US
Phone:
(787) 764-0000 x4897 (voice)
Email Address:
manilkara1@hotmail.com
Contacts:
Individual: Maria del Pilar Angulo
Address:
Department of Biology University of Puerto Rico, Rio Piedras Campus PO Box 23360,
San Juan, PR 00936 US
Phone:
(787) 764-0000 x4897 (voice)
Email Address:
manilkara1@hotmail.com
Associated Parties:
Individual: Eda Melendez-Colom
Organization:University of Puerto Rico, Rio Piedras Campus
Address:
University of Puerto Rico at Rio Piedras, Ponce de Leon Ave.,
San Juan, PR 00931 US
Phone:
(787) 764-0000 (voice)
Email Address:
edacorreo@yahoo.com
Role:data manager
Individual: Mitchell Aide
Address:
Department of Biology University of Puerto Rico Rio Piedras Campus PO Box 23360,
San Juan, PR 00931 US
Phone:
(787) 764-0000 x2580 (voice)
Email Address:
maide@upracd.upr.clu.edu
Role:associated researcher

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
1994-11-01
End:
1996-09-01
Sampling Site: 
Description:The Luquillo Forest Dynamics Plot (LFDP), previously known as the Hurricane Recovery Plot (Zimmerman et. al. 1994) and the Luquillo long-term ecological research grid (Soil Survey 1995), is a 16-ha forest plot (SW corner 18° 20' N, 65° 49' W) located near El Verde Field Station. The plot is 500 m N-S and 320 m E-W and is divided into 400 20 x 20 m quadrats, with each quadrat sub divided into 16 5 x 5 m sub-quadrats. The field station and LFDP are in the Luquillo Mountains of northeastern Puerto Rico, approximately 35 km southeast of San Juan.
Site Coordinates:
Longitude (degree): -65.8167Latitude (degree): 18.3333
Altitude (meter):333

Temporal, Geographic and/or Taxonomic information that applies to Data Table: Herbivory Nov 1994 to Oct 1995 on several paths along and across the LFDP


Time Period
Begin:
1994-11-01
End:
1996-10-01

Temporal, Geographic and/or Taxonomic information that applies to Data Table: Herbivory Nov 1995 to Oct 1996 on several paths along and across the LFDP


Time Period
Begin:
1994-11-01
End:
1996-09-01

Project

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unitList')
        |     |     |  \___attribute 'schemaLocation' in ns 'http://www.w3.org/2001/XMLSchema-instance' ('xsi:schemaLocation') = 'http://www.xml-cml.org/schema/stmml-1.1 http://nis.lternet.edu/schemas/EML/eml-2.1.0/stmml.xsd'
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = 'cm²'
        |     |     |     |  \___attribute 'constantToSI' = '0'
        |     |     |     |  \___attribute 'id' = 'squareCentimeter'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.0001'
        |     |     |     |  \___attribute 'name' = 'squareCentimeter'
        |     |     |     |  \___attribute 'parentSI' = 'squareMeter'
        |     |     |     |  \___attribute 'unitType' = 'area'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |     |___text 'square centimeters'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = '%'
        |     |     |     |  \___attribute 'constantToSI' = '0'
        |     |     |     |  \___attribute 'id' = 'percent'
        |     |     |     |  \___attribute 'multiplierToSI' = '100'
        |     |     |     |  \___attribute 'name' = 'percent'
        |     |     |     |  \___attribute 'parentSI' = 'numberPerNumber'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |     |___text 'ratio of two quantities as percent composition (1:100)'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

UNM logo UW-M logo