Population Age Structures of Tree Species in Four Plant Communities in the Great Dismal Swamp, Virginia

Metadata Updated: December 12, 2017

The primary objective of the present study was to determine the age structures of species occurring in four plant communities in the Great Dismal Swamp, Virginia, by enumerating annual rings in increment cores, and to interpret the reproductive status of individual species within each stand. In addition, an intercommunity comparison of age data was made to examine the similarities and differences in age distribution of species occurring in more than one stand. This information should provide useful insight toward the analysis of other ecological parameters of the swamp forest such as primary productivity and nutrient cycling. The age structures of four different plant communities (cedar, cypress, maplegum and mixed hardwood) in the Great Dismal Swamp were determined from increment cores. The oldest stand was determined to be the cypress which also had the greatest standing crop biomass of the four communities. Red maple (Acer rubrum L.) was found to be an expanding population in the maple-glim, cypress and cedar stands, while bald cypress (Taxodium distichum (L.) Richard) and Atlantic white cedar (Chamaecyparis thyoides (L.) BSP) were determined to be declining in numbers in the cypress and cedar stands respectively. Linear correlations between age and relative cumulative frequency were determined and the median ecological longevity estimated for each species.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date December 2, 2017
Metadata Updated Date December 12, 2017

Metadata Source

Harvested from DOI CKAN Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Created Date December 2, 2017
Metadata Updated Date December 12, 2017
Publisher Fish and Wildlife Service
Unique Identifier FWS_ServCat_81691
Brent Frakes
Maintainer Email
Public Access Level public
Bureau Code "010:18"
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID C:\Program Files (x86)\FWS\DataStore\Application\OpenData\FWS_ServCat_v1_1.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Data Quality true
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Harvest Object Id a7c29ec1-659d-49f8-9700-13f3a7e3a10e
Harvest Source Id 9364572a-43e2-4cb5-a0ee-589c8af0e137
Harvest Source Title FWS-servecat
Data First Published 1982-03-01
Homepage URL https://ecos.fws.gov/ServCat/Reference/Profile/81691
Data Last Modified 1982-03-01
Program Code "010:094", "010:028"
Related Documents "https://ecos.fws.gov/ServCat/Reference/Profile/81691"
Source Datajson Identifier true
Source Hash 03a22d95f84b9ecb097091d89085ab52fcaf98a3
Source Schema Version 1.1
Spatial -76.56988,36.43335,-76.3515854,36.7687759
Temporal 1978-07-01/1978-07-01
Category "Published Report"

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