NOTES ON THE GENUS NALEPELLA (ACARINA: ERIOPHYOIDEA) AND THE OCCURRENCE OF N. HALOURGA ON BLACK SPRUCE IN CANADA

1972 ◽  
Vol 104 (2) ◽  
pp. 239-244 ◽  
Author(s):  
Valin G. Marshall ◽  
Evert E. Lindquist
Keyword(s):  
Picea Abies ◽  
New Brunswick ◽  
Norway Spruce ◽  
Picea Mariana ◽  
Black Spruce ◽  
Economic Importance ◽  
First Time ◽  
Eriophyoid Mite ◽  
Host Associations

AbstractAn eriophyoid mite, Nalepella halourga Keifer, is newly recorded in Canada from two hosts: black spruce, Picea mariana (Mill.) BSP., from Ontario, and Norway spruce, Picea abies (L.) Karst., from New Brunswick. For the first time this mite is reported as damaging black spruce under greenhouse conditions. A key to the eight described species of Nalepella and notes on their host associations and economic importance are included.

Individual height–diameter models for young black spruce (Picea mariana) and jack pine (Pinus banksiana) plantations in New Brunswick, Canada

2009 ◽  
Vol 85 (1) ◽  
pp. 43-56 ◽  
Author(s):  
Xiangdong Lei ◽  
Changhui Peng ◽  
Haiyan Wang ◽  
Xiaolu Zhou
Keyword(s):  
New Brunswick ◽  
Picea Mariana ◽  
Pinus Banksiana ◽  
Black Spruce ◽  
Jack Pine ◽  
Tree Level ◽  
Forest Stands ◽  
Tolerance Intervals ◽  
Group I ◽  
Group Ii

Historically, height–diameter models have mainly been developed for mature trees; consequently, few height–diameter models have been calibrated for young forest stands. In order to develop equations predicting the height of trees with small diameters, 46 individual height–diameter models were fitted and tested in young black spruce (Picea mariana) and jack pine (Pinus banksiana) plantations between the ages of 4 to 8 years, measured from 182 plots in New Brunswick, Canada. The models were divided into 2 groups: a diameter group and a second group applying both diameter and additional stand- or tree-level variables (composite models). There was little difference in predicting tree height among the former models (Group I) while the latter models (Group II) generally provided better prediction. Based on goodness of fit (R2and MSE), prediction ability (the bias and its associated prediction and tolerance intervals in absolute and relative terms), and ease of application, 2 Group II models were recommended for predicting individual tree heights within young black spruce and jack pine forest stands. Mean stand height was required for application of these models. The resultant tolerance intervals indicated that most errors (95%) associated with height predictions would be within the following limits (a 95% confidence level): [-0.54 m, 0.54 m] or [-14.7%, 15.9%] for black spruce and [-0.77 m, 0.77 m] or [-17.1%, 18.6%] for jack pine. The recommended models are statistically reliable for growth and yield applications, regeneration assessment and management planning. Key words: composite model, linear model, model calibration, model validation, prediction interval, tolerance interval

Isolation of fungal endophytes from black spruce (Picea mariana) dormant buds and needles from New Brunswick, Canada

1992 ◽  
Vol 70 (9) ◽  
pp. 1754-1757 ◽  
Author(s):  
J. A. Johnson ◽  
N. J. Whitney
Keyword(s):  
New Brunswick ◽  
Key Words ◽  
Endophytic Fungi ◽  
Picea Mariana ◽  
Black Spruce ◽  
Fungal Endophytes ◽  
The Other ◽  
Age Classes ◽  
Needle Age

Endophytic fungi were isolated from black spruce (Picea mariana (Mill.) BSP) dormant buds and needles of four age-classes. Only one isolate was obtained from 400 buds. A total of 914 isolates were obtained from the needles. With increasing needle age the rate of colonization increased between current-year and 3-year-old needles from 4 to 90%, respectively. The needle segment attached to the twig was colonized more often (p < 0.05) than other segments overall and for 6 of the 11 taxa isolated. The first endophyte from current-year needles was isolated on July 14, 1988, but endophytes were obtained from needles of the other age-classes (1, 2, and 3 years) on all sampling dates between June 10 and September 16, 1988. Key words: endophyte, Picea mariana, dormand buds, needles.

Some Factors Influencing Cone Production on Young Black Spruce in New Brunswick

1981 ◽  
Vol 57 (6) ◽  
pp. 267-269 ◽  
Author(s):  
J. D. Simpson ◽  
G. R. Powell
Keyword(s):  
New Brunswick ◽  
Picea Mariana ◽  
Black Spruce ◽  
Tree Height ◽  
Tree Age ◽  
Cone Production ◽  
Factors Influencing ◽  
Seed Cone ◽  
Pollen Cone

Ten young black spruce (Picea mariana [Mill.] B.S.P.) plantations in northern and central New Brunswick were examined to de termine the influence of aspect, slope, tree age and tree height on pollen-cone and seed-cone production. It was found that a greater proportion of trees growing on southerly aspects produced pollen cones and seed cones than trees growing on northerly aspects. Trees growing on southerly aspects bore 2.5 and 5 times more seed cones and pollen cones, respectively, than trees growing on northerly aspects. Cone production on south-sloping sites was approximately double that on level sites. The number of seed cones was most significantly correlated with tree height. The number of pollen cones was most significantly correlated with number of seed cones.

scholarly journals Identification of Molecular Markers for Selected Wood Properties of Norway Spruce Picea abies L. (Karst.) I. Wood Density

2004 ◽  
Vol 53 (1-6) ◽  
pp. 45-50 ◽  
Author(s):  
T. Markussen ◽  
A. Tusch ◽  
B. R. Stephan ◽  
M. Fladung
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Wood Density ◽  
Wood Properties ◽  
Scar Markers ◽  
Exact Test ◽  
Monomorphic Band ◽  
Subsequent Conversion ◽  
Sib Families ◽  
First Time

AbstractThe identification of AFLP markers and their subsequent conversion to SCAR-markers linked to wood density of Norway Spruce (Picea abies L [Karst.]) is described for the first time. In AFLP-analyses, 102 different primer enzyme combinations were screened in a bulked segregant approach comparing individuals with high and low wood density. A total of 107 polymorphic AFLP fragments were obtained between the DNA-pools. Twenty-three markers were selected for further analyses to verify their linkage to wood density based on individuals used for pool constitution and additional unrelated clonal material. For 15 markers, a significant linkage to wood density was confirmed by a two-sided Fisher’s-exact test. Four markers were converted into SCAR markers and validated for plant material assayed for wood density by X-ray microdensitometry. For each marker a monomorphic band was obtained using sets of nested primers or restriction site-specific primers (RSS), which include the AFLP-restriction recognition sites. For two markers that are linked to high wood density, a separation from unlinked size homologous marker-alleles was realized by a PCR-restriction approach. Validation of these markers in different full-sib families confirmed their usability to separate the classes for low and high wood density of Picea abies.

scholarly journals Variability of Norway spruce (Picea abies [L.] Karst.) cone entomofauna in the Tatra National Park in association with the development of cones

2010 ◽  
Vol 56 (No. 4) ◽  
pp. 154-164 ◽  
Author(s):  
M. Kozioł
Keyword(s):  
Species Diversity ◽  
Picea Abies ◽  
Norway Spruce ◽  
National Park ◽  
Quantitative Composition ◽  
Trophic Groups ◽  
Qualitative And Quantitative ◽  
Tatra National Park ◽  
First Time

In the years 1987&ndash;1993 research aimed at the qualitative and quantitative composition of insects inhabiting the cones of Norway spruce (Picea abies [L.] Karst.) was carried out in the area of the Tatra National Park (Poland) for the first time. Approximately 72 thousand specimens of insects were obtained, representing 50 species from 8 orders. Kaltenbachiola strobi (Winn.), Plemeliella abietina Seitn. and Cydia strobilella L. were among the most frequently occurring species. The entomofauna of ripening, ripe and old, already lignified cones was determined, and among the insects found trophic groups were distinguished and, consequently, characterized by means of the following ecological indexes: constancy, dominance and species diversity. The qualitative and quantitative composition of spruce (P. abies) cone entomofauna was changing along with the development of the cones, due to the periods of occupancy and leaving the cones by species of varied bioecology. The entomofauna of ripe cones was characterized by higher species diversity (42 species) than that of ripening cones (25 species) and old cones (26 species).

scholarly journals Occurrence of the Maritime Shrew (Sorex maritimensis) in Black Spruce (Picea mariana) Forest Stands in Southeastern New Brunswick

2012 ◽  
Vol 126 (1) ◽  
pp. 1
Author(s):  
Julie Henderson ◽  
Graham Forbes
Keyword(s):  
New Brunswick ◽  
Picea Mariana ◽  
Black Spruce ◽  
Coniferous Forest ◽  
Forest Stands ◽  
Habitat Types

Twenty-one specimens of Sorex maritimensis (Maritime Shrew) were collected in coniferous forest of central New Brunswick, a habitat considered atypical for the species. We suggest S. maritimensis uses a wider range of habitat types than previously documented.

STAGE-SPECIFIC SURVIVAL OF STROBILOMYIA APPALACHENSIS (DIPTERA: ANTHOMYIIDAE)

1999 ◽  
Vol 131 (4) ◽  
pp. 483-494 ◽  
Author(s):  
L.L. Fidgen ◽  
J.D. Sweeney ◽  
D.T. Quiring
Keyword(s):  
New Brunswick ◽  
Field Study ◽  
Picea Mariana ◽  
Black Spruce ◽  
Seed Orchard ◽  
Third Instar Larvae

AbstractA 2-year field study was carried out to determine densities and stage-specific survival of eggs, second- and third-instar larvae, prepupae, pupae, and adults of Strobilomyia appalachensis Michelsen in a black spruce, Picea mariana (Mill.) B.S.P. (Pinaceae), seed orchard located in New Brunswick, Canada. Trends in stage-specific survival were similar for both years. Most individuals died during the second-instar stage, we suspect mostly because of failure to establish. The lowest stage survival occurred during the prepupal and pupal stages, due primarily to predation by ground-dwelling invertebrates.

scholarly journals Norway Spruce Provenance Experiments in the Maritimes Region of Canada

1980 ◽  
Vol 56 (4) ◽  
pp. 155-160 ◽  
Author(s):  
D. P. Fowler ◽  
J. F. Coles
Keyword(s):  
New Brunswick ◽  
Norway Spruce ◽  
Prince Edward Island ◽  
Black Spruce ◽  
Red Spruce ◽  
Provenance Trials ◽  
Wide Range ◽  
General Survival ◽  
Northeastern Poland ◽  
The Baltic

Results from ten provenance trials of Norway spruce in the Maritimes Region are reviewed. Norway spruce from eastern Poland and from mid-elevations in the Sudeten and Carpathian Mountains of northern Poland can be expected to perform well when planted over a wide range of sites in central and southern New Brunswick, Prince Edward Island and Nova Scotia. Norway spruce from east of the Baltic Sea, i.e., northeastern Poland, Latvia, Lithuania, western Russia and White Russia is recommended for northern New Brunswick. These same provenances are recommended for use in Great Lakes — St. Lawrence Region of Quebec and Ontario.Survival and growth rate of Norway spruce are compared to that of native spruce species. In general, survival of black and Norway spruce was the same and exceeded that of white and red spruce. Black spruce was taller than Norway which was taller than white and red spruce in most tests. It is suggested that growth of Norway spruce will exceed that of native spruces over rotations of 40-50 years.

Some Relationships Between Polygraphus rufipennis (Kirby) (Coleoptera: Scolytidae) and Spruces in New Brunswick

1966 ◽  
Vol 98 (3) ◽  
pp. 239-241 ◽  
Author(s):  
Peter W. Price
Keyword(s):  
New Brunswick ◽  
Picea Mariana ◽  
Comparative Studies ◽  
Black Spruce ◽  
White Spruce ◽  
Frequent Occurrence ◽  
Red Spruce ◽  
Host Tree

AbstractComparative studies on breeding and survival of Polygraphus rufipennis (Kirby) in black spruce, Picea mariana (Mill.) BSP., red spruce, P. rubens Sarg, and white spruce, P. glauca (Moench) Voss, indicate that red spruce is the most favourable host. The thicker, more scaly bark of red spruce and the less frequent occurrence of competition for bark space and food by other organisms are considered as contributory to the success of beetles in this host tree.

Genetic gains from 20 years of cooperative tree improvement in New Brunswick

2004 ◽  
Vol 80 (1) ◽  
pp. 127-133 ◽  
Author(s):  
Bryce McInnis ◽  
Kathleen Tosh
Keyword(s):  
New Brunswick ◽  
Picea Mariana ◽  
Pinus Banksiana ◽  
First Generation ◽  
Black Spruce ◽  
Jack Pine ◽  
Tree Improvement ◽  
Commercial Thinning ◽  
Height Gain ◽  
Rotation Age

The New Brunswick Tree Improvement Council analyzed 20-year data from plantations of unimproved and first generation improved black spruce (Picea mariana [Mill.] BSP) and jack pine (Pinus banksiana Lamb.). STAMAN, a computer model, conservatively projected an 11% merchantable volume gain at 40 years based on 20-year measurements of 36 000 trees. At age 20 years, first generation black spruce was 12% taller and 25–30% greater in total volume. Projections from over 160 000 individual measurements of height from age five to 20 years indicate that by 40 years, gains of 7–8% in height and 18–20% in total volume are likely. Ten year assessments from over 10 000 measurements of second generation black spruce indicate a 30% height gain over first generation material of the same age. For jack pine first generation material, the projections indicated a height gain of 14% and a total volume gain of over 30% at 40 years. Faster growth can provide greater volume at rotation age, a shorter rotation interval, or earlier interventions for commercial thinning. Key words: genetic gain, tree improvement, black spruce, jack pine

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