Norman A. Douglas

Works (5)

Updated: July 5th, 2023 15:52

2013 journal article

Evidence of population bottleneck in Astragalus michauxii (Fabaceae), a narrow endemic of the southeastern United States

Conservation Genetics, 15(1), 153–164.

By: W. Wall n, N. Douglas n, W. Hoffmann n, T. Wentworth n, J. Gray*, Q. Xiang  n, B. Knaus*, Hohmann, M. G.

author keywords: Astragalus; Bottleneck; Endemism; Genetic diversity; Microsatellites; Pinus palustris
TL;DR: Although genetic factors can threaten rare species, maintaining habitats through prescribed burning, in concert with other interventions such as population augmentation or (re)introduction, are likely most critical to the long term survival of A. michauxii. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2011 journal article

Recent vicariance and the origin of the rare, edaphically specialized Sandhills lily, Lilium pyrophilum (Liliaceae): evidence from phylogenetic and coalescent analyses

MOLECULAR ECOLOGY, 20(14), 2901–2915.

By: N. Douglas n, W. Wall n, Q. Xiang n , W. Hoffmann n, T. Wentworth n, J. Gray*, M. Hohmann *

author keywords: coalescence; divergence; edaphic; Lilium; Pleistocene; rarity
MeSH headings : DNA, Chloroplast / genetics; DNA, Plant / genetics; DNA, Ribosomal Spacer / genetics; Gene Flow; Genetic Speciation; Genetic Variation; Genetics, Population; Haplotypes; Lilium / genetics; Models, Genetic; North America; Phylogeny; Sequence Analysis, DNA; Species Specificity
TL;DR: The rare Sandhills lily is investigated, which is endemic to seepage slopes in a restricted area of the Atlantic coastal plain of eastern North America, and a close relationship is established between L. pyrophilum and the widespread Turk’s cap lily, L. superbum. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

A new tribal classification of Nyctaginaceae

Taxon, 59(3), 905–910.

By: N. Douglas & R. Spellenberg

Source: NC State University Libraries
Added: August 6, 2018

2010 journal article

Evidence for range stasis during the latter Pleistocene for the Atlantic Coastal Plain endemic genus, Pyxidanthera Michaux

MOLECULAR ECOLOGY, 19(19), 4302–4314.

By: W. Wall*, N. Douglas n, Q. Xiang n , W. Hoffmann  n, T. Wentworth  n & M. Hohmann *

author keywords: amplified fragment length polymorphism; cpDNA; Diapensiaceae; phylogeography; Pleistocene; refugium
MeSH headings : Alleles; Amplified Fragment Length Polymorphism Analysis; DNA, Chloroplast / genetics; Genetic Variation; Genetics, Population; Haplotypes; Magnoliopsida / anatomy & histology; Magnoliopsida / genetics; Molecular Sequence Data; Phylogeography; Sequence Analysis, DNA
TL;DR: It is demonstrated that the refugial paradigm is not always appropriate and GACP endemic plants, in particular, may exhibit phylogeographical patterns qualitatively different from those of other ENA plant species. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 journal article

Tripterocalyx carneus (Nyctaginaceae) is self-compatible

SOUTHWESTERN NATURALIST, 53(3), 403–406.

By: N. Douglas n

TL;DR: An experiment on a natural population of Tripterocalyx carneus to determine whether this species is self-compatible showed that flowers that were bagged but not emasculated set viable fruit in the majority of cases. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

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