scholarly journals Riparian zones attenuate nitrogen loss following bark beetle-induced lodgepole pine mortality

2016 ◽  
Vol 121 (3) ◽  
pp. 933-948 ◽  
Author(s):  
Joel A. Biederman ◽  
Thomas Meixner ◽  
Adrian A. Harpold ◽  
David E. Reed ◽  
Ethan D. Gutmann ◽  
...  
Keyword(s):  
Bark Beetle ◽  
Lodgepole Pine ◽  
Nitrogen Loss ◽  
Riparian Zones

scholarly journals Changes in a Primary Resistance Parameter of Lodgepole Pine to Bark Beetle Attack One Year Following Fertilization and Thinning

Forests ◽  
2015 ◽  
Vol 6 (12) ◽  
pp. 280-292 ◽  
Author(s):  
Stephen Cook ◽  
Amy Carroll ◽  
Mark Kimsey ◽  
Terry Shaw
Keyword(s):  
Bark Beetle ◽  
Lodgepole Pine ◽  
Primary Resistance ◽  
Resistance Parameter ◽  
One Year

Entomocorticium dendroctoni gen. et sp. nov. (Basidiomycotina), a possible nutritional symbiote of the mountain pine beetle in lodgepole pine in British Columbia

1987 ◽  
Vol 65 (1) ◽  
pp. 95-102 ◽  
Author(s):  
H. S. Whitney ◽  
R. J. Bandoni ◽  
F. Oberwinkler
Keyword(s):  
British Columbia ◽  
Bark Beetle ◽  
Pinus Contorta ◽  
Mountain Pine Beetle ◽  
Lodgepole Pine ◽  
Pine Bark ◽  
Mountain Pine ◽  
Pine Beetle ◽  
Blue Stain Fungi ◽  
Blue Stain

A new basidiomycete, Entomocorticium dendroctoni Whitn., Band. & Oberw., gen. et sp. nov., is described and illustrated. This cryptic fungus intermingles with blue stain fungi and produces abundant essentially sessile basidiospores in the galleries and pupal chambers of the mountain pine bark beetle (Dendroctonus ponderosae Hopkins Coleoptera: Scolytidae) in lodgepole pine (Pinus contorta Dougl. var. latifolia Engelm.). The insect apparently disseminates the fungus. Experimentally, young partially insectary reared adult beetles fed E. dendroctoni produced 19% more eggs than beetles fed the blue stain fungi.

ATTACK BY BARK BEETLES (COLEOPTERA: SCOLYTIDAE) FOLLOWING SPACING OF MATURE LODGEPOLE PINE (PINACEAE) STANDS

1999 ◽  
Vol 131 (5) ◽  
pp. 671-685 ◽  
Author(s):  
L. Safranyik ◽  
T.L. Shore ◽  
D.A. Linton
Keyword(s):  
Bark Beetle ◽  
Bark Beetles ◽  
Dominant Species ◽  
Management Practices ◽  
Lodgepole Pine ◽  
Species Accumulation Curves ◽  
The Third ◽  
Significant Difference ◽  
Accumulation Curves ◽  
Stick Model

AbstractVariation in bark beetle attack following spacing of mature lodgepole pine stands in the East Kootenays of British Columbia was analyzed in relation to stand location (site), spacing treatment, and harvesting injury. Observations were made on three sites, each having three treatments: 4 × 4 m spacing, 5 × 5 m spacing, and untreated control. There was no statistically significant difference in the numbers of attacked trees among sites or treatments. However, in the spaced plots 94.3% of the attacked trees sustained harvesting injury or were located adjacent to skid trails. Dendroctonus valens LeConte was the dominant species attacking trees on the two drier sites, and Dendroctonus murrayanae Hopkins was the dominant species on the third site. There was no statistically significant variation in the percentage of attacked stumps among sites or spacing treatments. On average, 80.7% of the stumps were attacked; attacked stumps had larger diameters than unattacked stumps. Thirteen species of bark beetles were found attacking stumps. Hylurgops porosus LeConte was the most numerous species at all three sites. Based on the fit of the Michaelis–Menten equations to species accumulation curves, an estimated 76–90% of the number of species attacking stumps at the three sites were observed in bark samples. Margalef’s index of diversity for the two drier sites (Cranbrook = 1.15, Parson = 1.13) was nearly identical and higher than at the moist site (Elkford = 0.89). Pairs of sites had five to six species in common, and the Sorensen coefficient of similarity ranged from 0.52 to 0.71, indicating moderate similarity in species composition. The abundance versus species rank relationship was fitted by three models: the MacArthur broken stick model, the geometric series, and the Zeta distribution. The latter gave good fit to data from two sites, but none of the fitted models gave satisfactory fit to data from the third site, mainly because of the high abundance of the second ranked species (Orthotomicus caelatus Eichhoff). Our results indicated that stand characteristics affected species assemblages and abundances of bark beetle species that attacked stumps. Management practices that minimize injury to trees during the spacing operations are emphasized to reduce attack by bark beetles.

scholarly journals Numerical Simulation of Crown Fire Hazard Immediately after Bark Beetle-Caused Mortality in Lodgepole Pine Forests

2012 ◽  
Vol 58 (2) ◽  
pp. 178-188 ◽  
Author(s):  
Chad Hoffman ◽  
Penelope Morgan ◽  
William Mell ◽  
Russell Parsons ◽  
Eva K. Strand ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Bark Beetle ◽  
Lodgepole Pine ◽  
Fire Hazard ◽  
Pine Forests ◽  
Crown Fire

scholarly journals Life history of a secondary bark beetle, Pseudips mexicanus (Coleoptera: Curculionidae: Scolytinae), in lodgepole pine in British Columbia

2009 ◽  
Vol 141 (1) ◽  
pp. 56-69 ◽  
Author(s):  
G.D. Smith ◽  
A.L. Carroll ◽  
B.S. Lindgren
Keyword(s):  
Life History ◽  
Bark Beetle ◽  
Pinus Contorta ◽  
Life History Traits ◽  
Lodgepole Pine ◽  
Degree Days ◽  
Northern Portion ◽  
History Of ◽  
Bark Beetle Associates

AbstractPseudips mexicanus (Hopkins) is a secondary bark beetle native to western North and Central America that attacks most species of pine (Pinus L. (Pinaceae)) within its range. A pair of life-history studies examined P. mexicanus in other host species, but until now, no work has been conducted on lodgepole pine (Pinus contorta Douglas ex Louden var. latifolia Engelm. ex S. Watson). Pseudips mexicanus in lodgepole pine was found to be polygynous. Galleries were shorter, offspring smaller, and the eggs laid per niche and the potential progeny fewer than in populations from California and Guatemala. Development from the time of female attack to emergence of adult offspring took less than 50 days at 26.5 °C, and the accumulated heat required to complete the life cycle was determined to be 889.2 degree days above 8.5 °C, indicating that in the northern portion of its range P. mexicanus is univoltine. Determination of these life-history traits will facilitate study of interactions between P. mexicanus and other bark beetle associates in lodgepole pine.

Responses of Ips pini (Say), Pityogenes knechteli Swaine and Associated Beetles (Coleoptera) to Host Monoterpenes in Stands of Lodgepole Pine

2003 ◽  
Vol 38 (4) ◽  
pp. 602-611 ◽  
Author(s):  
Daniel R. Miller ◽  
John H. Borden
Keyword(s):  
Bark Beetle ◽  
Bark Beetles ◽  
Mountain Pine Beetle ◽  
Lodgepole Pine ◽  
Behavioral Responses ◽  
Ips Pini ◽  
Host Volatiles ◽  
Pine Engraver ◽  
Pine Beetle

We conducted seven experiments in stands of mature lodgepole pine in southern British Columbia to elucidate the role of host volatiles in the semiochemical ecology of the pine engraver, Ips pini (Say) (Coleoptera: Scolytidae), with particular reference to the behavioral responses of predators and competing species of bark beetles. Our results demonstrated that the attraction of Ips pini and the bark beetle predators Lasconotus complex LeConte (Colydiidae), Thanasimus undatulus (Say) (Cleridae) and a Corticeus sp. (Tenebrionidae) were increased by 3-carene. In contrast, attraction of the bark beetle Pityogenes knechteli Swaine (Scolytidae) to ipsdienol was interrupted by 3-carene and α-pinene. Attraction of L. complex to ipsdienol was increased by γ-terpinene, a compound attractive to the mountain pine beetle, Dendroctonus ponderosae Hopkins (Scolytidae). Terpinolene interrupted the attraction of I. pini to ipsdienol.

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