scholarly journals Provenance Variation in Pinus palustris Foliar δ13C

Forests ◽  
2018 ◽  
Vol 9 (8) ◽  
pp. 466 ◽  
Author(s):  
Lisa Samuelson ◽  
Kurt Johnsen ◽  
Tom Stokes ◽  
Peter Anderson ◽  
C. Nelson
Keyword(s):  
North Carolina ◽  
Isotope Composition ◽  
Longleaf Pine ◽  
Pinus Palustris ◽  
Common Garden ◽  
Species Range ◽  
Specific Leaf Weight ◽  
Climate Conditions ◽  
Foliar Δ13c ◽  
Use Efficiency

Longleaf pine forests are currently being restored in the southern U.S. To aid in the deployment of longleaf pine under current and future climate conditions, we tested the hypothesis that genetic variability in foliar carbon isotope composition (δ13C) exists in this species. Foliar δ13C, height and diameter were measured at ages of 5 and 6 years, and needle length, specific leaf weight (SLW) and foliar N concentration were measured at an age of 6 years in 16 longleaf pine families representing a large portion of the species’ range. Families were grown in common garden tests in North Carolina and Mississippi and grouped for analysis into six provenances based on climate, soils, and discontinuities in the species’ range. No genetic by environment interactions were observed. Greater foliar δ13C was observed in trees from the provenance consisting of the Piedmont and Montane Uplands than from the provenances representing the western and eastern Gulf Coastal Plains. Foliar δ13C was not significantly correlated to height at age 6, suggesting that it may be possible to select for improved foliar δ13C without sacrificing growth. These results represent a first step in identifying potential genetic variation in leaf water use efficiency and drought tolerance of longleaf pine.

Effects of site preparation treatments on early growth and survival of planted longleaf pine (Pinus palustris Mill.) seedlings in North Carolina

2006 ◽  
Vol 226 (1-3) ◽  
pp. 122-128 ◽  
Author(s):  
Benjamin O. Knapp ◽  
G. Geoff Wang ◽  
Joan L. Walker ◽  
Susan Cohen
Keyword(s):  
North Carolina ◽  
Longleaf Pine ◽  
Pinus Palustris ◽  
Early Growth ◽  
Site Preparation ◽  
Growth And Survival

The Impact of Prescribed Burning on Native Bee Communities (Hymenoptera: Apoidea: Anthophila) in Longleaf Pine Savannas in the North Carolina Sandhills

2019 ◽  
Vol 49 (1) ◽  
pp. 211-219
Author(s):  
Heather Moylett ◽  
Elsa Youngsteadt ◽  
Clyde Sorenson
Keyword(s):  
North Carolina ◽  
Prescribed Burning ◽  
Longleaf Pine ◽  
Pinus Palustris ◽  
The North ◽  
Time Since Fire ◽  
Native Bee ◽  
Silvicultural Practice ◽  
Bee Community ◽  
The Impact

Abstract Prescribed burning is a common silvicultural practice used in the management of longleaf pine (Pinus palustris Mill., Pinales: Pinaceae) savannas to reduce hardwood encroachment and ground cover and to maintain biodiversity. We investigated the response of the native bee community (Hymenoptera: Apoidea: Anthophila) in the Sandhills of North Carolina to prescribed burning on a 3-yr rotation over two consecutive years (2012 and 2013). We deployed bee bowl traps in sites that had been burned the year of sampling, 1 yr before, 2 yr before, and in unburned controls. In total, 2,276 bees of 109 species were captured. Bee abundance declined with time since fire, with 2.3 times more bees captured in the most recently burned sites than in unburned controls. Bee diversity also declined with time since fire, with 2.1 times more species captured in the most recently burned sites than in controls. Bee community composition also responded to fire; we present evidence that this response was mediated in part by the effect of fire on the amount of bare ground and canopy cover. Bees nesting aboveground were unaffected by fire, contrary to our expectation that fire would destroy the wood and stems in which these species nest. Our results indicate that prescribed burning is a silvicultural practice consistent with pollinator conservation in longleaf pine ecosystems of the North Carolina sandhills.

scholarly journals Tree-Ring Dating Of Old-Growth Longleaf Pine (Pinus palustris Mill.) Logs From An Exposed Timber Crib Dam, Hope Mills, North Carolina, U.S.A

2009 ◽  
Vol 65 (1) ◽  
pp. 69-80 ◽  
Author(s):  
Saskia L. Van De Gevel ◽  
Justin L. Hart ◽  
Henri D. Grissino-Mayer ◽  
Kenneth W. Robinson
Keyword(s):  
North Carolina ◽  
Tree Ring ◽  
Longleaf Pine ◽  
Pinus Palustris ◽  
Old Growth

scholarly journals Tropical cyclone rainfall variability in coastal North Carolina derived from longleaf pine (Pinus palustris Mill.): AD 1771–2014

2015 ◽  
Vol 135 (2) ◽  
pp. 311-323 ◽  
Author(s):  
Paul A. Knapp ◽  
Justin T. Maxwell ◽  
Peter T. Soulé
Keyword(s):  
North Carolina ◽  
Tropical Cyclone ◽  
Rainfall Variability ◽  
Longleaf Pine ◽  
Pinus Palustris

Mortality among Seed Trees in Longleaf Pine Shelterwood Stands

1979 ◽  
Vol 3 (4) ◽  
pp. 165-167 ◽  
Author(s):  
William D. Boyer
Keyword(s):  
North Carolina ◽  
Longleaf Pine ◽  
Basal Area ◽  
Pinus Palustris ◽  
Stand Density ◽  
Before And After ◽  
Annual Mortality

Abstract Mortality of longleaf pine (Pinus palustris Mill.) seed trees was recorded in 27 regeneration areas ranging from North Carolina to Louisiana. Annual mortality averaged 0.7 percent before, and 1.9 percent after a seed cut reduced stand density to about 30 square feet of basal area per acre. On a per-acre basis, however, annual losses averaged 0.4 tree both before and after cutting. Yearly mortality of 0.2 tree per acre or less was recorded for more than half of all observations.

Comparison of climate–growth responses of montane and piedmont longleaf pine (Pinus palustris Mill.) chronologies in North Carolina

Trees ◽  
2019 ◽  
Vol 33 (2) ◽  
pp. 615-620 ◽  
Author(s):  
Tyler J. Mitchell ◽  
Thomas W. Patterson ◽  
Paul A. Knapp
Keyword(s):  
North Carolina ◽  
Longleaf Pine ◽  
Pinus Palustris ◽  
Growth Responses

Geographic variation in ecophysiological traits of black cottonwood (Populus trichocarpa)This article is one of a selection of papers published in the Special Issue on Poplar Research in Canada.

2007 ◽  
Vol 85 (12) ◽  
pp. 1202-1213 ◽  
Author(s):  
Jemma L. Gornall ◽  
Robert D. Guy
Keyword(s):  
Water Use ◽  
Stomatal Density ◽  
Isotope Composition ◽  
Populus Trichocarpa ◽  
Stable Carbon Isotope ◽  
Common Garden ◽  
Leaf Nitrogen ◽  
Black Cottonwood ◽  
Intrinsic Water Use Efficiency ◽  
Use Efficiency

Variation in traits related to photosynthesis and water-use were examined within and between geographic sources (provenances) of black cottonwood in two range-wide common garden experiments in British Columbia, Canada. In the first experiment, CO2 assimilation (A), stomatal conductance (gs), instantaneous intrinsic water use efficiency (WUEi), stomatal density, specific leaf area, growth height, and foliar N were measured on five 2-year-old trees of 20 clones from five widely separated provenances (i.e., 4 clones per source). Leaf disks were analysed for stable carbon isotope composition (δ13C) to provide a more long-term measure of WUE. Photosynthetic rate per unit leaf nitrogen was used as a measure of nitrogen use efficiency (NUE). A differed between (p < 0.001), but not within provenances, and increased with latitude of origin (R2 = 0.70). NUE and WUEi also varied between (p = 0.034 and p = 0.039, respectively), but not within provenances. In contrast, no variation among provenances was detected for δ13C, but there were strong differences between clones within provenances (p < 0.001). Variation in A was well correlated with foliar nitrogen, gs, and stomatal density and adaxial:abaxial distribution ratio; hence, WUEi, δ13C and NUE were mostly unrelated to latitude or associated climate variables. Species-wide patterns in stomatal density and distribution were confirmed in the second experiment which utilized 140 clones. Stomatal density on the adaxial (but not the abaxial) leaf surface was strongly correlated with latitude (p <0.001). We speculate that northern provenances may have inherently higher A and gs to compensate for shorter growing seasons.

scholarly journals The physiological basis for genetic variation in water use efficiency and carbon isotope composition in Arabidopsis thaliana

2013 ◽  
Vol 119 (1-2) ◽  
pp. 119-129 ◽  
Author(s):  
Hsien Ming Easlon ◽  
Krishna S. Nemali ◽  
James H. Richards ◽  
David T. Hanson ◽  
Thomas E. Juenger ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Genetic Variation ◽  
Water Use Efficiency ◽  
Carbon Isotope ◽  
Water Use ◽  
Isotope Composition ◽  
Carbon Isotope Composition ◽  
Physiological Basis ◽  
Use Efficiency

Foliar Carbon Isotope Composition (δ 13C) and Water Use Efficiency of Different Populus deltoids Clones Under Water Stress

2006 ◽  
Vol 1 (1) ◽  
pp. 89-94 ◽  
Author(s):  
Fengjun Zhao ◽  
Rongfu Gao ◽  
Yingbai Shen ◽  
Xiaohua Su ◽  
Bingyu Zhang
Keyword(s):  
Water Stress ◽  
Water Use Efficiency ◽  
Carbon Isotope ◽  
Water Use ◽  
Isotope Composition ◽  
Carbon Isotope Composition ◽  
Δ 13C ◽  
Use Efficiency ◽  
Populus Deltoids

scholarly journals A common garden experiment examining light use efficiency and heat sum to explain growth differences in native and exotic Pinus taeda

2018 ◽  
Vol 425 ◽  
pp. 35-44 ◽  
Author(s):  
Timothy J. Albaugh ◽  
Thomas R. Fox ◽  
Chris A. Maier ◽  
Otávio C. Campoe ◽  
Rafael A. Rubilar ◽  
...  
Keyword(s):  
Pinus Taeda ◽  
Common Garden ◽  
Light Use Efficiency ◽  
Common Garden Experiment ◽  
Use Efficiency ◽  
Growth Differences
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