Data Package Metadata   View Summary

Enclosure/exclosure experiments in a montane Puerto Rican stream examining direct and indirect effects of two dominant taxa of atyid (Atyidae) shrimp, Atya lanipes Holthius and Xiphocaris elongata Guerin-Meneville (Shrimp/ Algae/ Oecologia (1993))

General Information
Data Package:
Local Identifier:knb-lter-luq.105.109
Title:Enclosure/exclosure experiments in a montane Puerto Rican stream examining direct and indirect effects of two dominant taxa of atyid (Atyidae) shrimp, Atya lanipes Holthius and Xiphocaris elongata Guerin-Meneville (Shrimp/ Algae/ Oecologia (1993))
Alternate Identifier:DOI PLACE HOLDER
Abstract:

Freshwater shrimp dominate the faunal biomass of many tropical headwater streams: however, their role in community organization is unclear. Enclosure/exclosure experiments in a montane Puerto Rican stream examined direct and indirect effects of two dominant taxa of atyid (Atyidae) shrimp, Atya lanipes Holthius and Xiphocaris elongata Guerin-Meneville. Both shrimp taxa caused significant reductions in sediment cover on rock substrata, reducing sedimentation and enhancing algal biovolume on clay tiles in cages. When tiles incubated in shrimp exclosures for 2 wks were placed outside of cages, atyid shrimp removed 100% of sediment cover within a 30 min. observation period. Atyid shrimp appear to play an important role in stream recovery after high discharge events in rapidly removing sediments and detritus deposited on benthic substrata in pools. We evaluated the mechanism by which A. lanipes influences algae and benthic insects by comparing patterns of algal biomass, taxonomic composition and shrimp-presence treatments both with and without manual sediment removal. The shrimp exclusion treatment without manual sediment removal had significantly lower algal biomass and greater sedimentation than all other treatments. The treatment in which shrimp were excluded but sediment was manually removed, however, accrued almost the same algal biovolume as the shrimp enclosure treatment, supporting the hypothesis that sediment removal enhances the biovolume of understory algal taxa. Algal community composition was similar between stream bottom bedrock exposed to natural densities of shrimp and all experimental treatments for both Atya and Xiphocaris: a diatom community strongly dominated (78-95%) by the adnate taxon, Achnanthes lanceolata Breb ex. Kutz. Atyid shrimp are important in determining the distribution and abundance of benthic insects through both direct and indirect effects. Sessile, retreat-building chironomid larvae (Chironomidae: Diptera) are negatively affected by both A. lanipes and X.elongata, through direct removal by foraging activities and/or indirectly through depression of sediment resources available to larvae for the construction of retreats. In contrast, the mobile grazer, Cleodes maculipes (Baetidae: Ephemeroptera) was not adversely affected and atyid shrimp have the potential to exert positive indirect effects on this taxon by facilitating its exploitation of algal resources and/or through enhancement of understory algal food resources through sediment removal.

Publication Date:2010-03-22
Language:English

Time Period
Begin:
1990-02-23
End:
1990-07-27

People and Organizations
Contact:Pringle, Catherine  [  email ]
Creator:Pringle, Catherine 
Associate:Melendez-Colom, Eda (University of Puerto Rico, Rio Piedras Campus, data manager)
Associate:Covich, Alan 
Associate:Blake, Gail 
Associate:Buzby, Karen 
Associate:Finley, Amy 

Data Entities
Data Table Name:
Percentage of tile covered by silt on each observation date in Atya lanipes experiments (February 23 to March,1990). Figures 2, 3, and 4 Atya lanipes.
Description:
Percentage of tile covered by silt on each observation date in Atya lanipes experiments(February 23 to March,1990). Figures 2, 3, and 4 Atya lanipes.
Data Table Name:
Percentage of tile covered by silt on each observation date in Xiphocaris elongata experiments (July 6 to 27, 1990). Fig 2, 3, and 4 Xiphocaris elongata.
Description:
Percentage of tile covered by silt on each observation date in Xiphocaris elongata experiments (July 6 to 27, 1990). Fig 2, 3, and 4 Xiphocaris elongata.
Data Table Name:
Mean total algal biovolume for each treatment in Atya lanipes experiment. Fig 5 Atya lanipes.
Description:
Mean total algal biovolume for each treatment in Atya lanipes experiment. Fig 5 Atya lanipes.
Data Table Name:
Mean total algal biovolume for each treatment in Xiphocaris experiment(Fig 5 Xiphocaris elongata )
Description:
Mean total algal biovolume for each treatment in Xiphocaris experiment(Fig 5 Xiphocaris elongata )
Data Table Name:
Mean numbers of Xiphocaris elongata (XIPHO), Atya species (ATYA) and Machrobrachium species (MASCRO) per outside tile over 5 minutes observation. Table 1
Description:
Mean numbers of Xiphocaris elongata (XIPHO), Atya species (ATYA) and Machrobrachium species (MASCRO) per outside tile over 5 minutes observation. Table 1
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/105/109/4bb8a67c6b8e50efec9451c23b2fcf7a
Name:Percentage of tile covered by silt on each observation date in Atya lanipes experiments (February 23 to March,1990). Figures 2, 3, and 4 Atya lanipes.
Description:Percentage of tile covered by silt on each observation date in Atya lanipes experiments(February 23 to March,1990). Figures 2, 3, and 4 Atya lanipes.
Number of Records:216
Number of Columns:5

Time Period
Begin:
1990-02-23
End:
1990-07-27

Table Structure
Object Name:fig234atya_0.csv
Size:4888
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 Treatment1 - Shrimp enclosure/exclosure experiment without manual sediment removalDate of collectionCloedes maculipes numberChironomidae numberPercent of silt
Column Name:Treatment1  
Date  
Cloedes maculipes  
Chironomidae  
Percentofsilt  
Definition:The two treatments were Shrimp (un-electrified control substrata) and No Shrimp. Shrimps (>1 cm in length) were excluded from rock substrata using semicircular fences hooked up to battery-powered fence chargers which emitted continuous pulses of electricity. No data is missing in this field.Date of collection of sample (in mm/dd/yyyy)The number per tile of mayfly grazer Cloeodes maculipes sampled for each of the three treatments. With similar and adequate sampling, the data should be reproducible. For atya numbers range from 0 to 56, for xypho numbers range from 1 to 98. No data is missing in this field.The number of larval chironomid retreats per tile for each of the three treatments. With similar and adequate sampling, the data should be reproducible. For atya: numbers range from 0 to 235; For xypho, number range from 1 to 98. No data is missing in this field.The percentage of tile surface covered by silt for each of the three treatments. With similar and adequate sampling; the data should be reproducable. atya file:{4;...;97.5xypho file:{1;...;98}atya file:{4;...;97.5xypho file:{1;...;98}. No data is missing in this field.
Storage Type:string  
date  
     
Measurement Type:nominaldateTimeratioratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeShrimp
Definition2 mature shrimp were added to the cage
Source
Code Definition
CodeNo Shrimp
DefinitionShrimp were removed from the cage
Source
Formatmm/dd/yyyy
Precision
Unitnumber
Typereal
Unitnumber
Typereal
Unitdimensionless
Typereal
Missing Value Code:          
Accuracy Report:          
Accuracy Assessment:          
Coverage:          
Methods:          

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/105/109/5c2f39ec7cebc71917f5e7965e1ca66a
Name:Percentage of tile covered by silt on each observation date in Xiphocaris elongata experiments (July 6 to 27, 1990). Fig 2, 3, and 4 Xiphocaris elongata.
Description:Percentage of tile covered by silt on each observation date in Xiphocaris elongata experiments (July 6 to 27, 1990). Fig 2, 3, and 4 Xiphocaris elongata.
Number of Records:150
Number of Columns:5

Time Period
Begin:
1990-07-06
End:
1990-07-27

Table Structure
Object Name:fig234xipho.csv
Size:3221
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 Treatment2 - Shrimp enclosure/exclosure experiment with manual sediment removalSampling dateCloedes maculipes numberChironomidae numberPercent of silt
Column Name:Treatment2  
DAY  
Cloedes maculipes  
Chironomidae  
Percentofsilt  
Definition:The three treatments were Shrimp, No Shrimp, both with sediment removal. Outside Cage-Sampling took place outside of the shrimp cage exposed to natural densities of shrimp. No data is missing in this field.The number of the day in which the sampling took place. No data is missing for this field.The number per tile of mayfly grazer Cloeodes maculipes sampled for each of the three treatments. With similar and adequate sampling, the data should be reproducible. For atya numbers range from 0 to 56, for xypho numbers range from 1 to 98. No data is missing in this field.The number of larval chironomid retreats per tile for each of the three treatments. With similar and adequate sampling, the data should be reproducible. For atya: numbers range from 0 to 235; For xypho, number range from 1 to 98. No data is missing in this field.The percentage of tile surface covered by silt for each of the three treatments. With similar and adequate sampling; the data should be reproducable. atya file:{4;...;97.5xypho file:{1;...;98}atya file:{4;...;97.5xypho file:{1;...;98}. No data is missing in this field.
Storage Type:string  
       
Measurement Type:nominalratioratioratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeShrimp
Definition4 mature shrimp were added to the cage and silt was removed every 1 to 3 days
Source
Code Definition
CodeNo Shrimp
DefinitionShrimp were removed from the cage and the silt was removed every 1 to 3 days
Source
Code Definition
CodeOutside Cage
DefinitionSampling took place outside of the shrimp cage exposed to natural densities of shrimp
Source
Unitnumber
Typereal
Unitnumber
Typereal
Unitnumber
Typereal
Unitdimensionless
Typereal
Missing Value Code:          
Accuracy Report:          
Accuracy Assessment:          
Coverage:          
Methods:          

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/105/109/a2d88da187da3f0154662eee9bcf3be9
Name:Mean total algal biovolume for each treatment in Atya lanipes experiment. Fig 5 Atya lanipes.
Description:Mean total algal biovolume for each treatment in Atya lanipes experiment. Fig 5 Atya lanipes.
Number of Records:20
Number of Columns:8

Time Period
Begin:
1990-02-23
End:
1990-03-25

Table Structure
Object Name:fig5xipho.csv
Size:942
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 Treatment1 - Shrimp enclosure/exclosure experiment without manual sediment removalAchnanthes lanipesAchnanthes minutissimaAchnanthes exiguaCocconeis placentulaGomphonema spp.Opephora martyiMougeotia
Column Name:Treatment1  
A_lan  
A_min  
A_exi  
Gom_spp  
Cocconeis  
Opeph_mar  
Mougeotia  
Definition:The two treatments were Shrimp (un-electrified control substrata) and No Shrimp. Shrimps (>1 cm in length) were excluded from rock substrata using semicircular fences hooked up to battery-powered fence chargers which emitted continuous pulses of electricity. No data is missing in this field.The algal biovolume of Achnanthes lanipes for the different treatments in the presence ofAtya spp. Freshwater shrimp. No data is missing in this field.The algal biovolume of Achnanthes minutissma for the different treatments in the presence ofAtya spp. Freshwater shrimp. No data is missing in this field.The algal biovolume of Achnanthes exigua for the different treatments in the presence ofAtya spp. Freshwater shrimp. No data is missing in this field.The algal biovolume of Gomphonema spp. for the different treatments in the presence ofAtya spp. Freshwater shrimp. No data is missing in this field.The algal biovolume of Cocconeis placentula for the different treatments in the presence ofAtya spp. Freshwater shrimp. No data is missing in this field.The algal biovolume of Opephora martyi for the different treatments in the presence of Atya spp.Freshwater shrimp.The algal biovolume of Mougeotia for the different treatments in the presence of Atya spp.Freshwater shrimp. If the same sampling with adequate sample size should lead to highly reproducable
Storage Type:string  
             
Measurement Type:nominalratioratioratioratioratioratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeShrimp
Definition2 mature shrimp were added to the cage
Source
Code Definition
CodeNo Shrimp
DefinitionShrimp were removed from the cage
Source
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
Missing Value Code:                
Accuracy Report:                
Accuracy Assessment:                
Coverage:                
Methods:                

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/105/109/ff147e926d9bc72f2c919fbae00086a7
Name:Mean total algal biovolume for each treatment in Xiphocaris experiment(Fig 5 Xiphocaris elongata )
Description:Mean total algal biovolume for each treatment in Xiphocaris experiment(Fig 5 Xiphocaris elongata )
Number of Records:20
Number of Columns:8

Time Period
Begin:
1990-07-06
End:
1990-07-27

Table Structure
Object Name:fig5xipho.csv
Size:942
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 Treatment2 - Shrimp enclosure/exclosure experiment with manual sediment removalAchnanthes lanipesAchnanthes minutissimaAchnanthes exiguaCocconeis placentulaGomphonema spp.Nitzchia spp.Mougeotia
Column Name:Treatment2  
A_lan  
A_min  
A_exi  
Gom_spp  
Cocconeis  
Nitz_1  
Mougeotia  
Definition:The three treatments were Shrimp, No Shrimp, both with sediment removal. Outside Cage-Sampling took place outside of the shrimp cage exposed to natural densities of shrimp. No data is missing in this field.The algal biovolume of Achnanthes lanipes for the different treatments in the presence ofAtya spp. Freshwater shrimp. No data is missing in this field.The algal biovolume of Achnanthes minutissma for the different treatments in the presence ofAtya spp. Freshwater shrimp. No data is missing in this field.The algal biovolume of Achnanthes exigua for the different treatments in the presence ofAtya spp. Freshwater shrimp. No data is missing in this field.The algal biovolume of Gomphonema spp. for the different treatments in the presence ofAtya spp. Freshwater shrimp. No data is missing in this field.The algal biovolume of Cocconeis placentula for the different treatments in the presence ofAtya spp. Freshwater shrimp. No data is missing in this field.The algal biovolume of Nitzchia spp. for the different treatments in the presence of Atya spp.Freshwater shrimp. If the same sampling with adequate sample size should lead to highly reproducableThe algal biovolume of Mougeotia for the different treatments in the presence of Atya spp.Freshwater shrimp. If the same sampling with adequate sample size should lead to highly reproducable
Storage Type:string  
             
Measurement Type:nominalratioratioratioratioratioratioratio
Measurement Values Domain:
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeShrimp
Definition4 mature shrimp were added to the cage and silt was removed every 1 to 3 days
Source
Code Definition
CodeNo Shrimp
DefinitionShrimp were removed from the cage and the silt was removed every 1 to 3 days
Source
Code Definition
CodeOutside Cage
DefinitionSampling took place outside of the shrimp cage exposed to natural densities of shrimp
Source
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
UnitgramsPerSquareMeter
Typereal
Missing Value Code:                
Accuracy Report:                
Accuracy Assessment:                
Coverage:                
Methods:                

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/105/109/2d87f99094439d9f877beca4d9b1edb1
Name:Mean numbers of Xiphocaris elongata (XIPHO), Atya species (ATYA) and Machrobrachium species (MASCRO) per outside tile over 5 minutes observation. Table 1
Description:Mean numbers of Xiphocaris elongata (XIPHO), Atya species (ATYA) and Machrobrachium species (MASCRO) per outside tile over 5 minutes observation. Table 1
Number of Records:80
Number of Columns:4

Time Period
Begin:
1990-02-23
End:
1990-07-27

Table Structure
Object Name:table1.csv
Size:1398
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,

Table Column Descriptions
 Date of observation or monitoringNumber of x. elongata visiting outside of the cageNumber of atya visiting outside of the cageNumber of macrobrachium visiting outside of the cage
Column Name:DATE  
x_elongata  
atya  
macrobrachium  
Definition:Date in mm/dd/yyyy format when observations or monitoring were done.The number of x. elongata visiting tiles outside of the cage in number per tile. With similar and adequate sampling; the data should be reproducableThe number of atya visiting tiles outside of the cage in number per tile. With similar and adequate sampling; the data should be reproducableThe number of macrobrachium visiting tiles outside of the cage in number per tile. With similar and adequate sampling; the data should be reproducable
Storage Type:        
Measurement Type:ratioratioratioratio
Measurement Values Domain:
UnitdateTime
Typereal
Unitnumber
Typereal
Unitnumber
Typereal
Unitnumber
Typereal
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 Areasinorganic nutrients
LTER Controlled Vocabularyecosystems, aquatic ecosystems, streams, measurements, population and community properties, community composition, organisms, algae, animals, invertebrates, crustaceans, organizational units, communities, community structure, processes, physical processes, geological processes, sedimentation

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:

Shrimp enclosure/exclosure experiments assessed effects of Atya lanipes Holthius and Xiphocaris elongata Guerin-Menevil on sedimentation, insect abundance and algal communities in the Río Toronja. Two consecutive experiments examined effects of the A. lanipes (23 February - 25 March 1990) and X. elongata (6-27 July), respectively. For a more detailed description of the methodology see publication.

People and Organizations

Creators:
Individual: Catherine Pringle
Address:
University of Georgia Odum School of Ecology 308 Biological Sciences Building,
Athens, GA 30602 US
Phone:
(706) 542-4289 (voice)
Phone:
(706) 542-3344 (facsimile)
Email Address:
cpringle@uga.edu
Web Address:
http://pringle-lab.org/
Contacts:
Individual: Catherine Pringle
Address:
University of Georgia Odum School of Ecology 308 Biological Sciences Building,
Athens, GA 30602 US
Phone:
(706) 542-4289 (voice)
Phone:
(706) 542-3344 (facsimile)
Email Address:
cpringle@uga.edu
Web Address:
http://pringle-lab.org/
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: Alan Covich
Address:
Ecology Building Room 139 Institute of Ecology, Odum School of Ecology University of Georgia,
Athens, GA 30602 US
Phone:
(706) 542-6006 (voice)
Phone:
(706) 542-4819 (facsimile)
Email Address:
acovich@lternet.edu
Role:associated researcher
Individual: Gail Blake
Address:
US
Email Address:
notavailable@lternet.edu
Role:associated researcher
Individual: Karen Buzby
Address:
West Virginia University College of Engineering and Mineral Resources P.O. Box 6070 Evansdale Drive Room 272A,
Morgantown, WV 26506 US
Phone:
(304) 293-9923 (voice)
Phone:
(304) 293-7109 (facsimile)
Email Address:
Karen.Buzby@mail.wvu.edu
Web Address:
http://www.cemr.wvu.edu/faculty/faculty-detail.php?id=459&type=staff
Role:associated researcher
Individual: Amy Finley
Address:
US
Email Address:
notavailable@lternet.edu
Role:associated researcher
Metadata Providers:
Individual: Gail Blake
Address:
US
Email Address:
notavailable@lternet.edu

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
1990-02-23
End:
1990-07-27
Sampling Site: 
Description:Aproximate location using Google Maps: Puerto Rico 186, El Yunque National Forest, Rio Grande, Río Grande 00745, Puerto Rico 454 m SW
Site Coordinates:
Longitude (degree): -65.818Latitude (degree): 18.3308
Altitude (meter):283

Temporal, Geographic and/or Taxonomic information that applies to Data Table: Percentage of tile covered by silt on each observation date in Atya lanipes experiments (February 23 to March,1990). Figures 2, 3, and 4 Atya lanipes.


Time Period
Begin:
1990-02-23
End:
1990-07-27

Temporal, Geographic and/or Taxonomic information that applies to Data Table: Percentage of tile covered by silt on each observation date in Xiphocaris elongata experiments (July 6 to 27, 1990). Fig 2, 3, and 4 Xiphocaris elongata.


Time Period
Begin:
1990-07-06
End:
1990-07-27

Temporal, Geographic and/or Taxonomic information that applies to Data Table: Mean total algal biovolume for each treatment in Atya lanipes experiment. Fig 5 Atya lanipes.


Time Period
Begin:
1990-02-23
End:
1990-03-25

Temporal, Geographic and/or Taxonomic information that applies to Data Table: Mean total algal biovolume for each treatment in Xiphocaris experiment(Fig 5 Xiphocaris elongata )


Time Period
Begin:
1990-07-06
End:
1990-07-27

Temporal, Geographic and/or Taxonomic information that applies to Data Table: Mean numbers of Xiphocaris elongata (XIPHO), Atya species (ATYA) and Machrobrachium species (MASCRO) per outside tile over 5 minutes observation. Table 1


Time Period
Begin:
1990-02-23
End:
1990-07-27

Project

Other Metadata

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