PLUM ISLAND ECOSYSTEM LTER DATABASE

DATA FILE: LTE-MD-VEGTRANS.xls

DOCUMENTATION FILE: LTE-MD-VEGTRANS.doc

YEAR: 2000-2001

PI: Robert Buchsbaum

OTHERS: Wendy Dalia, Sue Olesko, April Ridlon, Liz Duff, Carl Noblett

BRIEF DESCRIPTION OF DATA FILE: Vegetation % frequency data along transects through two hayed and two reference sites.

KEYWORDS: salt marsh, haying, vegetation

SITE TYPE: Long Term Experiment

RESEARCH LOCATION: Salt marsh that is hayed by Dan McHugh in Rowley and reference areas in the vicinity of Stackyard and Patmos Roads. Four studies sites (two hayed and two references) are contained with approximate boundaries as ff: Lat. 42.740N-42.747N; Long. 70.836W-70.847W. The two hayed sites are McH1 (hayed every year, north of Patmos Rd) and EPH (East of Perry's land and between Sawyer Creek and Patmos Rd, hayed every two years, last hayed in 1999). The two reference sites are PUH (Perry Unhayed, between Sawyer Creek and Patmos Rd) and CC (Clubhead Creek, located S of Stackyard Rd and bounded on its E side by the PRNWR).

EXPERIMENTAL DESIGN AND METHODS: Line intercept method as described in Brower, J., J. Zar, and C. von Ende (1990) Field and Laboratory for General Ecology. Wm. C. Brown. Transects typically start at edge of marsh creek and run perpendicular to upland. Lengths of individual transects vary from 35-150 m depending on the shape of the marsh sites and the number of transect line differed for the four sites. The presence of species within each one meter interval along the transect line was recorded. Absolute and % frequencies can then be calculated.

NOTES AND COMMENTS: Names of observers: RB (Robert Buchsbaum), WD (Wendy Dalia), ADR (April Ridlon), SO (Susan Olesko), SGR (Sam Gale Rosen), LD (Elizabeth Duff), CR (Carl Noblett). CR, Madeline and Simon were Gov. Dummer students.

VARIABLE DESCRIPTION:

DATE = date data collected (DD-MMM-YY)

SITE = location of data collection (refer to "Research Location" field for codes)

TRANSECT = Transect line along which speciess were observed and collected. Code names are indicated under “RESEARCH LOCATION” above.

OBSERVER = initials of people who collected the samples (refer to "Notes" field for abbreviations)

DISTANCE = distance in meters along transect that quadrat was placed down

Spartina alterniflora = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Spartina patens = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Distichlis spicata = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Juncus gerardi = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Salicornia europaea = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Atriplex patula = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Iva frutescens = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Suaeda linearis = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Limonium CAROLINIANUM= a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Glaux maritima= a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Festuca rubra = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Solidago sempervirens = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Toxicodendron radicans = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Teucrium canadense = a ‘1’ indicates that the species was present in that interval, a ‘O’ that it was not

Osmunda cinnamonea = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Juncus effusus = pa ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Agropyron repens = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

Polygonum sp. = a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

agrostis stolonifera= a ‘1’ indicates that this species was present in that interval, a ‘O’ that it was not

quercus sp. = a ‘1’ indicates that the species was present in that interval, a ‘O’ that it was not

Upland Grass = a ‘1’ indicates that this unidentified grass species was present in that interval, a ‘O’ that it was not

Unknown1 = a ‘1’ indicates that an unknown species denoted unknown1was present in that interval, a ‘O’ that it was not

algal mat = a ‘1’ indicates it was present in that interval, a ‘O’ that it was not

Wrack = a ‘1’ indicates that wrack was present in that interval, a ‘O’ that it was not

Ditch = a ‘1’ indicates it was present in that interval, a ‘O’ that it was not

Panne = a ‘1’ indicates it was present in that interval, a ‘O’ that it was not

CALCULATIONS:

FOR MORE INFORMATION, CONTACT: Robert Buchsbaum

OTHER DATA FILES TO REFERENCE: LTE-MD-VEGTRANS.xls, LTE-MD-EOYBIOM.xls, LTE-MD-VEGSTN.xls

REFERENCE CITATIONS:

DATA AVAILABILITY STATUS: Type 2

ARCHIVE INFORMATION:

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