Intraspecific Competition Affecting Parents and Offspring in the Bark Beetle Ips Typographus

Anderbrant, Olle; Schlyter, Fredrik; Birgersson, Göran

doi:10.2307/3565226

Cited by 185 publications

(147 citation statements)

References 23 publications

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“…Thereafter, the parental beetles may leave the gallery and initiate one or more sister broods (Martinek, 1956). The time of re-emergence and the occurrence of sister brood flights depends upon both temperature (Anderbrant, 1986) and intra-specific competition (Anderbrant et al, 1985). When the beetles of the first brood are fully developed they may emerge and initiate a second generation within the same season (bivoltine) or they may hibernate (univoltine), depending on the thermal conditions and the photoperiod (Doležal and Sehnal, 2007b).…”

Section: Introductionmentioning

confidence: 99%

Seasonal flight patterns of Ips typographus in southern Sweden and thermal sums required for emergence

Öhrn

Långström

Lindelöw

et al. 2014

Agri and Forest Entomology

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Section: Introductionmentioning

confidence: 99%

Seasonal flight patterns of Ips typographus in southern Sweden and thermal sums required for emergence

Öhrn

Långström

Lindelöw

et al. 2014

Agri and Forest Entomology

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“…However, increasing evidence suggests that the environment can also influence an individual's ability to synthesize and emit chemical signals. Environmental factors that may influence chemical signals include temperature (Ono, 1993), humidity (Hock et al, 2014), and population-specific influences such as density (Anderbrant et al, 1985). Variation in chemical signals, whether genetically or environmentally driven, has significant implications for the receiver (see also Symonds and Elgar, 2008).…”

Section: Introductionmentioning

confidence: 99%

Diet-Mediated Pheromones and Signature Mixtures Can Enforce Signal Reliability

et al. 2017

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Diet is arguably the most significant environmental factor shaping chemical signals in animals. In rare cases, dietary components are converted directly into pheromones or signature mixtures but more generally variation in an individual's diet influences their overall condition and thus capacity to synthesize the signal. Typically, diet is variable between individuals of the same species and this can lead to variation in signals. This variation presents specific challenges to receivers, who must be able to recognize and respond to a greater range of signals. However, such variation might also provide the receiver with key information about the signaller, allowing them to respond to the signal advantageously. Here we investigate how dietary-mediated pheromones and signature mixtures can provide the receiver with reliable information about the signaller, ultimately benefiting the receiver in a way not achievable by a static signal.

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“…Ips typographus can reproduce under bark with a minimum thickness of 2.5 mm, whereas there seems not to be any maximum bark thickness (Grünwald, 1986). Intraspecific competition of the bark area leads to decreased reproduction rate (Anderbrant et al, 1985). Interspecific competition between different bark beetle species is segregated by different preferences for bark thickness for reproduction (Grünwald, 1986).…”

Section: Bark Beetlesmentioning

confidence: 99%

“…On average each attacked male breeds with two females laying 60-80 eggs along the maternal gallery (Annila, 1971). The reproduction rate is related to the female density in a tree and the overall number of offspring to the optimal bark area for reproduction in each tree (Anderbrant et al, 1985;Anderbrandt, 1990;Weslien and Regnander, 1990). Ips typographus can reproduce under bark with a minimum thickness of 2.5 mm, whereas there seems not to be any maximum bark thickness (Grünwald, 1986).…”

Section: Bark Beetlesmentioning

confidence: 99%

“…Seidl et al, 2016;Wermelinger, 2004) have enabled the development of mechanistic models describing the bark beetle dynamics (Seidl et al, 2007(Seidl et al, , 2009Fahse and Heurich, 2011;Kautz et al, 2014;Louis et al, 2016b). In addition, numerous statistical models predicting parts of the Ips typographus dynamics have shed light on the processes affecting the bark beetle dynamics (e.g., Anderbrant et al, 1985;Eriksson et al, 2005;Mulock and Christiansen, 1986). A few models consider the interaction between weakened trees (namely wind damaged trees) as a low resistance breeding material for bark beetle reproduction (e.g., Eriksson et al, 2007Eriksson et al, , 2005Louis et al, 2016b).…”

Section: Modelling the Disturbance Dynamicsmentioning

confidence: 99%

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Integrating mechanistic disturbance models and stand dynamics of Norway spruce

Honkaniemi¹

2017

Diss. For.

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Disturbances, caused by abiotic and biotic agents, are discrete events in time disrupting the ecosystem and resulting in the reduction of plant biomass. They play a key role in forest ecosystems, but in the managed forests pose a risk to forest productivity. The projected climate change is expected to increase the risk of various disturbances in the boreal forests. In Europe, the major risks threatening the Norway spruce (Picea abies) dominated stands are caused by Heterobasidion root rot, wind storms, and European spruce bark beetle (Ips typographus). Heterobasidion root rot causes growth losses, mortality and decreases the timber quality. It also decreases the mechanical stability of the tree against wind load and increases the stand vulnerability for wind damages. Bark beetles benefit from the low resistance breeding material, i.e., wind damaged trees, when the population is low and can emerge as outbreaks in the right conditions. This thesis presents a simulation framework WINDROT to simulate the interactive dynamics of these disturbance agents. WINDROT consists of four simulation models, each responsible for either the dynamics of the host or one of the disturbance agents. A stand level decision support system, MOTTI, simulates the growth and dynamics of tree stands as affected by forest management, and provides inputs for mechanistic models Hmodel, HWIND and BBDYN simulating the dynamics and effects of disturbance agents. The model performance analyses in tree and stand scale showed that; i) the Heterobasidion dynamics are driven by primary and secondary infections on large stumps; ii) increasing intensity of Heterobasidion root rot damages increases the risk for wind damages; and iii) the increasing wind damages increased the subsequent bark beetle damages. The simulation framework can be used to analyze the sensitivity of different forest management regimes to the risks posed by these damages alone and in various combinations.

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Intraspecific Competition Affecting Parents and Offspring in the Bark Beetle Ips Typographus

Cited by 185 publications

References 23 publications

Seasonal flight patterns of Ips typographus in southern Sweden and thermal sums required for emergence

Seasonal flight patterns of Ips typographus in southern Sweden and thermal sums required for emergence

Diet-Mediated Pheromones and Signature Mixtures Can Enforce Signal Reliability

Integrating mechanistic disturbance models and stand dynamics of Norway spruce

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