Bark beetle olfaction. III. Antennal olfactory responsiveness ofDendroctonus frontalis Zimmerman andD. brevicomis Le Conte (Coleoptera: Scolytidae) to aggregation pheromones and host tree terpene hydrocarbons

1975 ◽  
Vol 1 (2) ◽  
pp. 233-242 ◽  
Author(s):  
Thomas L. Payne
Keyword(s):  
Bark Beetle ◽  
Host Tree ◽  
Aggregation Pheromones

scholarly journals Tree resin flow dynamics during an experimentally induced attack by Ips avulsus, I. calligraphus, and I. grandicollis

2019 ◽  
Vol 49 (1) ◽  
pp. 53-63 ◽  
Author(s):  
Sander O. Denham ◽  
David R. Coyle ◽  
A. Christopher Oishi ◽  
Bronson P. Bullock ◽  
Kari Heliövaara ◽  
...  
Keyword(s):  
South Carolina ◽  
Bark Beetle ◽  
Bark Beetles ◽  
Aggregation Pheromones ◽  
Tree Defenses ◽  
Pinus Taeda L ◽  
Stochastic Events ◽  
Resin Defenses ◽  
North And South

The success of tree colonization by bark beetles depends on their ability to overcome host tree defenses, including resin exudation and toxic chemicals, which deter bark beetle colonization. Resin defenses during insect outbreaks are challenging to study in situ, as outbreaks are stochastic events that progress quickly and thus preclude the establishment of baseline observations of non-infested controls. We use synthetic aggregation pheromones to demonstrate that confined Ips bark beetle herbivory can be successfully initiated to provide opportunities for studying interactions between bark beetles and their hosts, including the dynamics of constitutive and induced resin exudation. In Pinus taeda L. plantations between 12 and 19 years old in North and South Carolina, U.S., trees were affixed with pheromone lures, monitored for evidence of bark beetle attacks, and resin samples were collected throughout the growing season. Baiting increased beetle herbivory to an extent sufficient to produce an induced resin response. Attacked trees exuded about three times more resin at some time than control trees. This supports previous work that demonstrated that information on constitutive resin dynamics alone provides an incomplete view of a host tree’s resistance to bark beetle attack.

scholarly journals Climate change and range expansion of an aggressive bark beetle: evidence of higher beetle reproduction in naïve host tree populations

2010 ◽  
Vol 47 (5) ◽  
pp. 1036-1043 ◽  
Author(s):  
Timothy J. Cudmore ◽  
Niklas Björklund ◽  
Allan L. Carroll ◽  
B. Staffan Lindgren
Keyword(s):  
Climate Change ◽  
Bark Beetle ◽  
Range Expansion ◽  
Host Tree

Conceptual Model of Infestation Probability Based on Bark Beetle Abundance and Host Tree Susceptibility

1984 ◽  
Vol 13 (3) ◽  
pp. 619-624 ◽  
Author(s):  
T. D. Paine ◽  
F. M. Stephen ◽  
H. A. Taha
Keyword(s):  
Conceptual Model ◽  
Bark Beetle ◽  
Host Tree

Saproxylic community, guild and species responses to varying pheromone components of a pine bark beetle

2013 ◽  
Vol 103 (5) ◽  
pp. 497-510 ◽  
Author(s):  
Iñaki Etxebeste ◽  
José L. Lencina ◽  
Juan Pajares
Keyword(s):  
Bark Beetle ◽  
Bark Beetles ◽  
Sustainable Forest Management ◽  
Gaussian Model ◽  
Aggregation Pheromones ◽  
Delayed Response ◽  
Beetle Species ◽  
Saproxylic Beetle ◽  
By Catch ◽  
Associated Species

AbstractSome bark beetle species (Coleoptera: Scolytinae) produce aggregation pheromones that allow coordinated attack on their conifer hosts. As a new saproxylic habitat is founded, an assemblage of associated beetles kairomonally respond to bark beetle infochemicals. Ips sexdentatus is one of the major damaging insects of Pinus spp. in Southern Europe. Its response to varying ipsenol (Ie) percentages in relation to ipsdienol (Id) was studied in northwestern Spain, along with the entire saproxylic beetle assemblage captured at multiple-funnel traps. Response profile modeling was undertaken for I.sexdentatus sexes and sex-ratios, associated species and for selected trophic groups using a reference Gaussian model. In addition, the effects on the saproxylic assemblages were analyzed. I. sexdentatus response curve peaked at 22.7% Ie content, while remaining taxa that could be modeled, peaked above ca. 40% Ie. Predator guilds showed a linear relationship with Ie proportion, while competitors showed a delayed response peak. Consequently, species assemblages differed markedly between varying pheromone component mixtures. Given that the evaluated pheromonal proportions mimicked that of logs being colonized by I. sexdentatus, results suggested that the registered differential responses at different levels might provide I.sexdentatus with a temporal window that maximizes conspecific attraction while reducing interference with competitor and predatory guilds. Described responses might help improve the monitoring of the population status of target bark beetles and their associates, but also point toward the by-catch of many natural enemies, as well as rare saproxylic beetle species, interfering with the aims of sustainable forest management.

Volatiles released from oak, a host tree for the bark beetle Scolytus intricatus

2000 ◽  
Vol 28 (10) ◽  
pp. 933-947 ◽  
Author(s):  
Pavlı́na Vrkočová ◽  
Irena Valterová ◽  
Jan Vrkoč ◽  
Bohumı́r Koutek
Keyword(s):  
Bark Beetle ◽  
Host Tree

Scots pine (Pinus sylvestris L.) mortality is explained by the climatic suitability of both host tree and bark beetle populations

2019 ◽  
Vol 448 ◽  
pp. 119-129 ◽  
Author(s):  
Luciana Jaime ◽  
Enric Batllori ◽  
Jordi Margalef-Marrase ◽  
María Ángeles Pérez Navarro ◽  
Francisco Lloret
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Bark Beetle ◽  
Host Tree ◽  
Climatic Suitability

scholarly journals Neighborhood context mediates probability of host tree mortality in a severe bark beetle outbreak

Ecosphere ◽  
2020 ◽  
Vol 11 (8) ◽  
Author(s):  
Michele S. Buonanduci ◽  
Jenna E. Morris ◽  
Michelle C. Agne ◽  
Brian J. Harvey
Keyword(s):  
Bark Beetle ◽  
Tree Mortality ◽  
Neighborhood Context ◽  
Host Tree
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