Distribution of a bark beetle and its predator within and outside old growth forest reserves: No increase of hazard near reserves

Schlyter, Fredrik; Lundgren, Ulf P.

doi:10.1080/02827589309382774

Cited by 26 publications

(20 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…were more abundant in the managed forest (Table 3c; Fig. 1c) than in the reserve, as was also reported for T. formicarius by Schlyter and Lundgren (1993) in Sweden. T. formicarius is a generalist and has been recorded as a predator of more than 20 species of bark beetles, both on coniferous and deciduous trees (Gauss 1954).…”

Section: Discussionsupporting

confidence: 69%

See 1 more Smart Citation

Insect natural enemies of Ips typographus (L.) (Coleoptera, Scolytinae) in managed and unmanaged stands of mixed lowland forest in Poland

2007

View full text Add to dashboard Cite

We tested the eVects of forest management type (managed vs. unmanaged) on the abundances of Ips typographus (L.) (Col., Curculionidae, Scolytinae) and related parasitoids and predators reared from spruce bolts exposed in Biaiowiera, Poland. Habitat availability for these species diVered between forest types mainly as a result of regular sanitary fellings occurring in managed forests. Populations of the common polyphagous insect predators Paromalus paralellepipedus (Herbst) and Plegaderus vulneratus (Panz.) (Col., Histeridae) or parasitoids Rhopalicus tutela (Walk.), Dinotiscus eupterus (Walk.) and Roptrocerus xylophagorum Ratz. (Hym., Pteromalidae) related to I. typographus did not diVer between managed and unmanaged forests. Only Thanasimus spp. (Col., Cleridae) was signiWcantly more abundant in managed forest, possibly because it was favored by the more open, sunny stands. However, the experiment was performed in stands where spruce is only a minor component and during the non-epidemic phase of the bark beetle population, so further experiments may be necessary to determine if the eVects of sanitary fellings are greater in diVerent forest types and at diVerent stages of the population cycle.

show abstract

Section: Discussionsupporting

confidence: 69%

“…A possible explanation for the disparity is that Thanasimus sp. may be favored by the more open and sunny stands in managed forests (Schlyter and Lundgren 1993), where open spaces, such as roads and clear-cuts are more frequent.…”

Section: Discussionmentioning

confidence: 99%

Insect natural enemies of Ips typographus (L.) (Coleoptera, Scolytinae) in managed and unmanaged stands of mixed lowland forest in Poland

2007

View full text Add to dashboard Cite

show abstract

“…Eight out of 22 species found occurred in all studied stands. Martikainen et al (1999) found that managed spruce forests with one-age class favour some bark beetle species of a narrower species spectrum which can reduce competition with other pests, predation and parasitism (Schlyter and Lundgren 1993), which in natural stands control their populations. A preference for certain forest development phases and forest structure was also found in various vertebrates (e.g.…”

Section: Centipede Communities In Different Forest Development Phasesmentioning

confidence: 99%

Influence of forest development phase on centipede diversity in managed beech forests in Slovenia

Grgič

Kos

2005

Biodivers Conserv

View full text Add to dashboard Cite

Biodiversity in managed forests depends on management practices that determine the forest structure. The influence of stand structure on centipede diversity was investigated by comparing centipede communities from different forest development phases. Using the quadrat counts method, soil samples were taken thrice during 2000 (in spring, summer and autumn) from a deforested area and three evenly aged beech stands (juvenile, pole and timber phases) in managed beech forests in Slovenia. The characteristics of centipede communities and the similarities among them were estimated. The collection comprised 1150 centipedes representing 32 species. At a single site, 10-24 species were found. The average density was between 22 and 808 individuals per m 2 . Differences among communities from different sites were found. The highest species number and abundance were found in the juvenile phase and the lowest in the deforested area. The occurrence of species differed among phases, but none of the species found with a high incidence in one development phase was restricted to that phase. The composition of the centipede community was more sensitive to the successional status of the forest than to the season. A comparison with differently structured forest was made, which suggests that homogenisation leads to reduced centipede diversity. To preserve biodiversity and healthy forest functioning, the maintenance of heterogeneity within a forest stand should be an important focus of management operations.

show abstract

“…This fi nding is in agreement with those of Kautz et al (2011b) and Lausch et al (2011Lausch et al ( , 2013 who record that 95% of the new infestations occurred within 500 m. Similar conclusions are drawn by authors that recently studied the question of spruce bark beetle population levels in unmanaged and surrounding managed forests. Generally, it can be concluded that under non-epidemic conditions, unmanaged stands do not necessarily pose a threat to surrounding managed forests (Schlyter & Lundgren, 1993). However, rapid population growth in unmanaged stands may threaten neighboring managed forests at distances of up to 500 m following abiotic disturbances (e.g.…”

Section: Discussionmentioning

confidence: 99%

Fine fluorescent powder marking study of dispersal in the spruce bark beetle, Ips typographus (Coleoptera: Scolytidae)

Doležal¹,

Okrouhlík²,

Davídková³

2016

Eur. J. Entomol.

View full text Add to dashboard Cite

Abstract.A novel method was used to study dispersal in the spruce bark beetle, Ips typographus (L.), under epidemic conditions (rapidly increasing population density) in the Šumava National Park. Infested spruce logs were coated with a fi ne fl uorescent powder and the passively marked emerging beetles were captured in pheromone baited traps located at various distances from these logs. The number of marked beetles captured decreased exponentially with increasing distance from the release point. The sex ratio of the bark beetles was more female biased the further they were recaptured from the logs, being 57% and 60% at distances of up to 50 and 100 m, respectively. The maximum distance fl own by a marked beetle recorded in this experiment was 1094 m. A model fi tted to the data on dispersal indicates that 10% of the spruce bark beetles dispersed over distances of 55 m and 4 m in spring (overwintered parental generation) and summer (fi rst fi lial generation), respectively. Differences between spring and summer swarming are briefl y discussed.

show abstract

Distribution of a bark beetle and its predator within and outside old growth forest reserves: No increase of hazard near reserves

Cited by 26 publications

References 21 publications

Insect natural enemies of Ips typographus (L.) (Coleoptera, Scolytinae) in managed and unmanaged stands of mixed lowland forest in Poland

Insect natural enemies of Ips typographus (L.) (Coleoptera, Scolytinae) in managed and unmanaged stands of mixed lowland forest in Poland

Influence of forest development phase on centipede diversity in managed beech forests in Slovenia

Fine fluorescent powder marking study of dispersal in the spruce bark beetle, Ips typographus (Coleoptera: Scolytidae)

Contact Info

Product

Resources

About