LUQ LTER DATA SETS DOCUMENTATION FORM

ON-LINE VERSION

A DATA SET is a series of observations collected by the same methodology. Each data set should have documentation sufficient for someone unfamiliar with the research to replicate the study. Data sets may be broken into subsets (data files) that are discrete in space and time, in that order. The documentation for a data set should include all spatial and temporal subdivisions of the data.

(Data, Abstract, Methods, Variables)

NOTES:

PERSON(S) COMPLETING THIS FORM:

    E-MAIL ADDRESS:  

Michael J. Richardson

mjrichardson@clara.net

DATA SET IDENTIFIER :  Invertebrate dry weight data

PROJECT TITLE :   Community Composition of Litter Invertebrate (Animal biomass in the LEF
)

PROJECT DESCRIPTION : As part of other studies in the LEF on animal abundance and diversity in forest floor litter, and in bromeliad and heliconia phytotelmata, estimates of the dry weight of individuals of different animal taxa, mainly invertebrates were obtained. This allows estimates of biomass to be made. (See complete Community Composition of Litter Invertebrate Project description).

LTER CORE AREAS:Annotate all that apply

Population Dynamics

Organic matter accumulation


LEF LTER 1 RESEARCH  TOPIC:  (Annotate all that apply)

Animal diversity in relation to nutrient inputs


Data File No.

Data File Identifier

On-Line Filename

Starting Date

Periodicity of sample

End Period

1

Invertebrate dry weights

Invertebratedrywt.txt

1996

irregular

ongoing

RESEARCH LOCATIONS: : Various locations, mostly within the LEF at El Verde.

INVESTIGATORS:

PRINCIPAL INVESTIGATORS

E-MAIL address

Michael Richardson

mjrichardson@clara.net


Other Researchers

E-MAIL address

   
   

CONTACT PERSONS  

E-MAIL address

Phone Number(Include area code)

Michael Richardson

mjrichardson@clara.net

0131-447-8165 (UK)

SOURCE OF FUNDING (SPONSOR): Carnegie Trust, Royal Society of Edinburgh, Napier University, USDA Forest Service, University of Puerto Rico.

DATA SET ABSTRACT: Contains information [identity, counts, size, fresh and dry weights] of various collections of invertebrates (and the occasional amphibian or reptile), which has allowed formulae describing the relationship between length and dry wt. of invertebrates to be obtained. These have been used in estimating biomass in studies of bromeliad, heliconia and litter inveretbrates in the LEF. They will have a wider application.

DATA SET METHODS:  Invertebrates collected, identified, counted, dried and weighed. Most from fresh material, some recovered from alcohol, and a few observations made on material in the El Verde 'herbarium'. For details see Richardson, B.A., M.J. Richardson, F.N. Scatena, and W.H. McDowell (2000.)

REFERENCES :  none

CROSS-REFERENCES (other data sets related to this one): LTERDBAS #137: Litter invertebrate communities at different elevations in the LEF; LTERDBAS#116: Bromeliad invertebrate diversity in the LEF; LTERDBAS#130: Heliconia invertebrate counts; Litter invertebrate data [still to be submitted]

SAMPLE LOCATION :  mostly destructive sampling - not retained

STORAGE SITES (of data files): with the researchers;

INVESTIGATOR'S ASSIGNED KEYWORDS: bromeliads, heliconia, litter, invertebrates, biomass

LEF LTER OFFICIAL KEYWORDS (See table): TABONUCO, COMMUNITY COMPOSITION, ANIMALS, INSECTS, PEER REVIEWED JOURNAL

PUBLICATIONS :
Richardson, B.A., M.J. Richardson, F.N. Scatena, and W.H. McDowell. 2000. Effects of nutrient availability and other elevational changes on bromeliad populations and the invertebrate communities in a humid tropical forest in Puerto Rico. Journal of Tropical Ecology 16:167-188.

Richardson, B.A., C. Rogers, and M.J. Richardson. 2000. Nutrients, diversity, and community structure of two phytotelm systems in a lower montane forest, Puerto Rico. Ecological Entomology 25:348-356.

DISSEMINATION : UNRESTRICTED

FILING
_X__ "File" copy only : Data Management will only file an electronic copy of the data file and its documentation 
___ "Enter" data on-line : Data Management will be in charge of entering the data on computer files

(Contact Eda C. Meléndez)

SITES DESCRIPTIONS: Litter and bromeliads in the various forests in the LEF plants.

Geographical positional system (GPS) Coordinates for each location:

location

Latitude

Longitude

LEF, mostly at El Verde

18.3 °N

65.8 °W

Toro Negro State Forest, Ponce 18.16 °N 66.53 °W
Edinburgh, UK 55.9 °N 3.2 °W

VARIABLES (ATTRIBUTES):

File Name or # above (all in which the variable appears)

1 1

1  

Abbreviation (as it appears on the data file)

Major group

Taxon

State

Origin

NAME OF VARIABLE

Major group

Taxon

State

Origin

DEFINITION OF

VARIABLE

Taxonomic classification of organism

Identity of organism

Developmental stage of organism measured

Locality where material was collected and [year]

UNIT

N/A N/A
   

PRECISION

N/A N/A    

RANGE OR LIST OF VALUES

N/A   Larva, nymph, adult, nasute, worker, winged
alpha, pupa and immature
 

DATA TYPE

Alpha Alpha Alpha Alpha

MISSING

DATA CODES

none none blank blank

VARIABLES (ATTRIBUTES):

File Name or # above (all in which the variable appears)

1

1 1 1

Abbreviation (as it appears on the data file)

Source Number Size class [mm] Mean length [mm]
NAME OF VARIABLE Source Number Size class [mm] Mean length [mm]

DEFINITION OFVARIABLE

Origin of animals as from fresh material, recovered from preservation in alcohol or from El Verde 'herbarium' Number of animals in group weighed
integer
With grouped collections, the range of animal length included in the group Length of single individual animals, or mid-point of size class for groups of animals.

UNIT

N/A N/A mm mm

PRECISION

N/A N/A N/A  

RANGE OR LIST OF VALUES

f = fresh material,
a = recovered from preservation in alcohol,
h = from El Verde 'herbarium'
1-600 1-300 1-300

DATA TYPE

Alpha Numeric

Numeric

Numeric

MISSING DATA CODES

blank none blank blank

VARIABLES (ATTRIBUTES):

File Name or # above (all in which the variable appears)

1

1

1

1

Abbreviation (as it appears on the data file)

Total wet wt [mg] Total dry wt [mg] Individual fresh wt [mg] Individual dry wt [mg]

NAME OF VARIABLE

Wet wt [mg] Dry wt [mg] Individual fresh wt [mg] Individual dry wt [mg]

DEFINITION OF VARIABLE

Weight [fresh, or blotted dry after recovery from alcohol] of organism(s) Dry weight of organism(s) Mean wet weight of a single organism of the specified taxon [= variable 9/variable 6] Mean dry weight of a single organism of the specified taxon [= variable 10/variable 6]

UNIT

mg mg mg mg

PRECISION

     

RANGE OR LIST OF VALUES

0-35000 0-20000 0-35000 0-20000

DATA TYPE

numeric numeric numeric numeric

MISSING DATA CODES

blank blank blank blank

COMPUTATIONAL METHODS:

Variable Name

Formula

   


FOR DATA MANAGER USE ONLY

DATE OF LAST REVIEW: May 24, 2006
DATE OF LAST ENTRY : March 1998
STAGE OF DATA SET MANAGEMENT (dates) :
RECEIVED ENTERED: July 4, 2003
FILED ON-LINE: March 19, 2004
REVIEWED BY RESEARCHER
FILING MEDIA :
NAME OF DOCUMENTATION FILE : LTERBAS134.HTM,
Invertebrate dry weight data.doc
NAME OF ON - LINE CATALOG : LTERDBAS
RECORD # : 134
DOCUMENT TYPE : data set (magnetic media)
PRIORITY TO BE ENTERED : N/A

Rev. date of this form: 8 June 2001 / 11 March 2002/ 20 May 2003