Plum Island Ecosystems LTER Database

Acceptance and utilization of LTER data requires that:

(1) The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions.
(2) The Principal Investigator of the data set be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publications.
(3) A copy of any resultant publications should be sent to:

Principal Investigator
Ecosystems Center
Marine Biological Laboratory
7 MBL St.
Woods Hole, MA 02543

Dataset URLs:METADATA: HTML, Rich Text, XML(EML compliant)
DATA: Comma Delimited, Excel file with Metadata and data
Dataset Title:Birds observed in newly hayed and adjacent reference sites. August through September 2000 and August 2001.
Investigator 1: 
First Name:Robert
Last Name:Buchsbaum
Address line 1:Massachusetts Audubon, North Shore
Address line 2:Endicott Regional Center
Address line 3:356 Grapevine Road
Zip Code:01984
Associate Investigators:
Keywords:PIE LTER, primary production, organic matter, population dynamics, salt marsh, haying, birds
Abstract:Birds observed in newly hayed and adjacent reference sites. August through September 2000 and August 2001.
Contact: Plum Island Ecosystems LTER Information Manager
The Ecosystems Center
Marine Biological Lab
7 MBL St
Woods Hole, MA 02543
Phone (508) 289 7485
Online URL:
Data File URL
Beginning Date 8/3/2000
End Date 8/28/2001
Number of Data Records 97
Other Files to Reference LTE-MD-BIRD-STN.xls
Availability Status Type 1
Quality Control Information
Maintenance Description
Log of Changes: Version 01, initial Excel to EML metadata
Version 02 keyword update
Geographic Description Between Sawyer Creek and Stackyard Rd  
Location Bounding Box    
West Bounding Coordinate    
East Bounding Coordinate    
North Bounding Coordinate    
South Bounding Coordinate    
OR if single point location    
Latitude 42.744  
Longitude -70.841  
Taxonomic Protocols
Organisms studied
Methods:10 min point count at boundary of two marshes then walk transect line through middle of hayed and reference marshes.

NOTES AND COMMENTS: Time was not consistently recorded but all sampling done in late afternoon. Data for a station at one time include counts of individual species and total birds.
Where the variables “feeding” and “resting” are are blank on the spreadsheet, it indicates that birds were counted but their activities were not recorded.

CALCULATIONS: The species entry “total birds” is derived from summing the individual species.

Data Table

Variable Name Variable Description Units Measurement Scale Code Information Number Type DateTime Format Missing Value Code Missing Value Code Explanation
DATE date when observations were made   datetime     dd-mmm-yyyy    
TIME Approximate time when observations began. Not rigorously recorded, but all observations were carried out during the late afternoon.   datetime     hhmm    
SITE location where observations were made   nominal          
TREATMENT shows if site is a hayed area or a reference area   nominal          
SPECIES Common names of the bird species observed.   nominal          
NUMBER Number of individual birds observed during the observation period. Counts are given both for individual bird species and for the total number of birds observed during each observation period. dimensionless ratio   whole      
FEEDING Count of individual birds observed to be feeding. dimensionless ratio   whole      
RESTING Count of individual birds observed to be resting. dimensionless ratio   whole      
COMMENTS additional notes pertaining to the observations   nominal