Maryland Marshbirds1990-1992

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Unknown

Publication_Date: Unknown

Title: Maryland Marshbirds1990-1992

Geospatial_Data_Presentation_Form:

Description:

Abstract:

The Maryland Marshbird Censuses were conducted between 1990 and 1992 to provide baseline data about the distribution and relative abundance of marshbirds within Marylands Coastal Plain. The effort supplemented information gathered by the Maryland Breeding Bird Atlas (1984-1989). A team of three expert surveyors conducted point counts using tape playback of 9 species specific audio sequences to elicit responses from the targeted species of marshbirds.

Purpose:

The 1990-1992 Maryland marshbird project was designed to:

develop a technique to survey the breeding marshbirds in Maryland using tape playback methodology,

determine the optimum time during the dusk to dawn period for surveying marshbirds,

determine the optimum period during the breeding season for surveying breeding marshbirds in Maryland,

determine environmental factors that affect calling response of marshbirds to broadcast vocalizations,

document the distribution and relative abundance of marshbird breeding populations in Marylands tidal wetlands, and

establish base line marshbird population indices for future assessment of relative population changes.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19900425

Ending_Date: 19920722

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Description_of_Geographic_Extent:

The eastern portion of the state of Maryland, including sites in the following Coastal Plain counties: Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles, Dorchester, Harford, Kent, Prince Georges, Queen Annes, Saint Marys, Somerset, Talbot, Wicomico, Worcester

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: monitoring

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: waterbird

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: population trend

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: point count

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: survey

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: bird

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: marshbird

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Mid-Atlantic

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Maryland

Temporal:

Temporal_Keyword_Thesaurus: None

Temporal_Keyword: spring

Temporal:

Temporal_Keyword_Thesaurus: None

Temporal_Keyword: breeding season

Temporal:

Temporal_Keyword_Thesaurus: None

Temporal_Keyword: summer

Taxonomy:

Keywords/Taxon:

Taxonomic_Keyword_Thesaurus: None

Taxonomic_Keywords: multiple species

Taxonomic_Keywords: birds

Taxonomic_System:

Classification_System/Authority:

Classification_System_Citation:

Citation_Information:

Originator: American Ornithologists' Union

Publication_Date: 1998

Title: Check-list of North American Birds

Edition: Seventh

Geospatial_Data_Presentation_Form: book

Online_Linkage: <http://www.aou.org/checklist/index.php3>

Classification_System_Modifications:

The check-list is revised and updated on an annual basis by the American Ornithologists' Union. Revisions are published in The Auk.

Taxonomic_Procedures:

Observers have pre-existing knowledge of bird identification or they use published field guides.

General_Taxonomic_Coverage:

Birds. Selected marshbird species including: Pied-billed Grebe, Least Bittern, American Bittern, King Rail, Clapper Rail, Virginia Rail, Sora, Black Rail, Common Moorhen

A number of other species of birds (from a range of families) were included as well as incidental observations.

Taxonomic_Classification:

Taxon_Rank_Name: Kingdom

Taxon_Rank_Value: Animalia

Applicable_Common_Name: animals

Taxonomic_Classification:

Taxon_Rank_Name: Phylum

Taxon_Rank_Value: Chordata

Applicable_Common_Name: chordates

Taxonomic_Classification:

Taxon_Rank_Name: Subphylum

Taxon_Rank_Value: Vertebrata

Applicable_Common_Name: vertebrates

Taxonomic_Classification:

Taxon_Rank_Name: Class

Taxon_Rank_Value: Aves

Applicable_Common_Name: birds

Access_Constraints:

Yes. Although most records are not considered sensitive or classified, access to locations of Black Rail (Laterallus jamaicensis) should be restricted since site locations of this species are sensitive and should not be released to the public. All other data can be publicly available, although records that pertain to species on the state rare, threatened, and endangered list may also require some level of access restriction.

Use_Constraints: None

Data_Set_Credit:

Funding was provided by the citizens of Maryland through the Chesapeake Bay and Endangered Species Fund. Access to land units under their control was provided by the U. S. Army, U. S. Fish & Wildlife Service, National Park Service and Maryland National Capitol Park and Planning Commission.

Native_Data_Set_Environment: Database: Microsoft Access, Version 2002 SP-1

Cross_Reference:

Citation_Information:

Originator:

Tango, P. J., G. D. Therres, D. F. Brinker, M. OBrien, E. A. T. Blom and H. W. Wierenga.

Publication_Date: 1997

Title:

Breeding distribution and relative abundance of marshbirds in Maryland: Evaluation of a tape playback survey method.

Geospatial_Data_Presentation_Form:

Other_Citation_Details:

Final report, U. S. Fish and Wildlife Service Grant # 14-48-0009-95-1280. Wildlife & Heritage Division, Maryland Department of Natural Resources, Annapolis, MD 21401.

Cross_Reference:

Citation_Information:

Originator:

Brinker, D. F., and G. D. Therres, P. J. Tango, M. OBrien. E. A. T. Blom and H. W. Wierenga.

Publication_Date: 2002

Title:

Distribution and relative abundance of breeding rails and other marshbirds on Marylands tidal marshes.

Geospatial_Data_Presentation_Form:

Other_Citation_Details: Maryland Birdlife 59:3-17.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Field data sheets were key punched by contractual data entry clerks. Data entry QC consisted of a simultaneous page by page check of entered data by two individuals. Key punch errors were corrected as necessary. Outlier detection and accuracy assessment matrices have not been applied to the data set. All original data sheets are retained within files of the Maryland Natural Heritage Program and can be inspected for verification of field data.

Logical_Consistency_Report:

Completeness_Report: Nothing has been excluded.

Lineage:

Process_Step:

Process_Description: No process steps have been described for this data set

Process_Date: Unknown

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Local:

Local_Description:

Yes, latitude and longitude. During 1990-1992 points were plotted in the field on paper USGS topographic maps. Coordinates were later measured in UTM before final conversion to latitude and longitude..

Local_Georeference_Information:

The location of each survey point was recorded on paper copies of USGS topographic maps while in the field. During 1992 the coordinate pairs for each survey point were measured in UTM from the field maps and entered into a database. Coordinate pairs were subsequently imported into an Arc View 3.2 based GIS. During 2005-2006 a subset of points were ground-truthed using handheld GPS units accurate to +/- 3 meters (WAAS corrected). During 2008, electronic plots of all points were compared to the original paper field maps and lat/longs corrected when necessary.

Metadata_Reference_Information:

Metadata_Date: 20070111

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jim Lowe

Contact_Organization: Cornell Laboratory of Ornithology

Contact_Address:

Address_Type: mailing and physical

Address: 159 Sapsucker Woods Road

City: Ithaca

State_or_Province: NY

Postal_Code: 14850

Country: USA

Contact_Voice_Telephone: 607-254-2413

Contact_Electronic_Mail_Address: JDL6@cornell.edu

Contact_Instructions: E-Mail is preferred

Metadata_Standard_Name:

FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001.1-1999