Janet B. Gray

Janet B. Gray
Department of Army, Fort Bragg and Camp Mackall Military Installations · Endangered Species Branch

MS Botany

About

17
Publications
1,724
Reads
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181
Citations
Additional affiliations
September 1994 - present
United States Army
Position
  • Botanist
Description
  • Manage rare and endangered species. Facilitate and collaborate on research projects for rare flora and communities.
Education
May 1998 - May 2001
May 1978 - May 1981
University of Wisconsin–Madison
Field of study
  • Horticulture

Publications

Publications (17)
Article
Full-text available
Understanding demographic vital rates and the factors that affect those rates are key components of successful conservation strategies for many threatened and endangered rare plant species. Lindera subcoriacea is a rare dioecious shrub that occupies isolated wetland habitats in a small number of locations in the southeastern United States. The spec...
Article
Full-text available
Canebrakes formerly occupied hundreds of thousands of hectares across the southeastern USA, but habitat conversion and fire suppression have reduced their size and extent. Currently, canebrakes are among the rarest vegetative communities in the southeastern USA. Research has focused on Arundinaria gigantea (river cane), with very little focus on Ar...
Article
The US Department of Defense is taking proactive steps to conserve rare species that occur primarily on lands under its stewardship, including Astragalus michauxii (Kuntze) F.J. Herm. (Sandhills milkvetch; Fabaceae). We completed a series of evaluations to determine effective means of germinating and propagating A. michauxii . We collected A. micha...
Article
Full-text available
Genetic factors such as decreased genetic diversity and increased homozygosity can have detrimental effects on rare species, and may ultimately limit potential adaptation and exacerbate population declines. The Gulf and Atlantic Coastal Plain physiographic region has the second highest level of endemism in the continental USA, but habitat fragmenta...
Article
Biased sex ratios can have conservation consequences for dioecious plant species with small population sizes because of an increased risk of single sex populations. Biased sex ratios have been observed in two of the three species of Lindera (Lauraceae) in the eastern United States, but have not been documented for Lindera subcoriacea, a rare shrub...
Article
Prioritizing management of invasive plants is important for large land management entities, such as federal and state public land stewards, because management resources are limited and multiple land uses and management objectives are differentially impacted. Management decisions also have important consequences for the likelihood of success and ult...
Conference Paper
Background/Question/Methods Because of its substantial effects on demographic vital rates, fire has been used successfully to manage for fire-dependent plant species in a number of ecosystems. However, not all plant species respond positively to fire, even in fire-dependent ecosystems, making it particularly important to study the effects of fire...
Article
Fire can have dramatic effects on the vital rates of plant species and has been used successfully for management in a number of ecosystems. However, the demographic response of species to fire in fire-dependent ecosystems is variable, making it important to study the effects of fire on rare and threatened species. We quantified the effects of fire...
Conference Paper
Background/Question/Methods Fire is an important disturbance in a variety of ecosystems and can have multiple direct and indirect effects on the population dynamics of many plant species. In the southeastern United States, the longleaf pine ecosystem is dependent on frequent fire, and fire suppression in the last century has led to dramatic popula...
Article
Full-text available
Establishing the phylogenetic and demographic history of rare plants improves our understanding of mechanisms that have led to their origin and can lead to valuable insights that inform conservation decisions. The Atlantic coastal plain of eastern North America harbours many rare and endemic species, yet their evolution is poorly understood. We inv...
Article
Full-text available
Pyxidanthera brevifolia is an evergreen semi-woody cushion plant endemic to the Sandhills of North and South Carolina, with the majority of populations occurring on Fort Bragg Military Reservation in North Carolina. Currently the species is listed as Endangered in North Carolina and is designated as a Species at Risk (SAR) by the US Department of D...
Article
Full-text available
Increases in tree density resulting from fire suppression have contributed considerably to the loss of savanna and grassland habitats in North America. Inability to tolerate shade is likely an important cause of species loss in areas that have not maintained historical burning regimes. We conducted an experiment to test whether differences in shade...
Conference Paper
Background/Question/Methods Small, spatially isolated plant populations or those with altered disturbance regimes are at higher risk of extinction because of inbreeding depression, loss of genetic heterogeneity, and reduced dispersal rates. However, interpretation of extinction risk can be influenced by the choice of model used to characterize popu...
Article
Full-text available
This study is a compilation of vascular flora data from previous reports and current findings from 1965 through 2003 of Fort Bragg Military Reservation and Weymouth Woods Sandhills Nature Preserve, located in the Sandhills region of North Carolina. Vascular plants are divided into four major groups: Pteridophytes, Gymnosperms, Angiosperms (monocots...
Article
Full-text available
We examined factors likely to be important in management of rare flora of the longleaf pine-wiregrass ecosystem on Fort Bragg and Camp Mackall Military Reservations in North Carolina, USA. We documented 1,268 occurrences of thirty-six rare plant species during two inventories conducted from 1991 to 1993 and 1998 to 1999. Of these occurrences, 891 (...
Article
Full-text available
We examined factors likely to be important in management of rare flora of the longleaf pine-wiregrass ecosystem on Fort Bragg and Camp Mackall Military Reservations in North Carolina, USA. We documented 1,268 occurrences of thirty-six rare plant species during two inventories conducted from 1991 to 1993 and 1998 to 1999. Of these occurrences, 891 (...

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Projects

Project (1)
Project
Quantify the current extent and fire frequency