A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Drivers of Spruce Bark Beetle (Ips typographus) Infestations on Downed Trees after Severe Windthrow (2020)
Hroššo, Branislav, Mezei, Pavel, Potterf, Mária, Majdák, Andrei, Blaženec, Miroslav, Korolyova N, Jakuš, Rastislav. (2020). Drivers of Spruce Bark Beetle (Ips typographus) Infestations on Downed Trees after Severe Windthrow. Forests, 11(12), Article 1290. https://doi.org/10.3390/f11121290
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Hroššo, Branislav; Mezei, Pavel; Potterf, Mária; Majdák, Andrei; Blaženec, Miroslav; Korolyova N; Jakuš, Rastislav
Lehti tai sarja: Forests
eISSN: 1999-4907
Julkaisuvuosi: 2020
Ilmestymispäivä: 01.12.2020
Volyymi: 11
Lehden numero: 12
Artikkelinumero: 1290
Kustantaja: MDPI
Julkaisumaa: Sveitsi
Julkaisun kieli: englanti
DOI: https://doi.org/10.3390/f11121290
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/73670
Tiivistelmä
Background and Objectives: There is a lack of evidence to differentiate how outbreaks are promoted by the effects of environmental variables versus beetle preferences of trees from endemic to outbreak. However, little is known about how individual downed-tree characteristics and local conditions such as tree orientation and solar radiation affect beetle colonization of downed trees.
Materials and Methods: To answer this question, we investigated the infestation rates and determined tree death categories (uprooted, broken, and stump) in wind-damaged areas in Western Tatra Mts. in Carpathians (Slovakia) from 2014-2016, following a windthrow in May 2014. In total, we investigated 225 trees over eight transects. For every tree, we measured its morphological (tree height, crown characteristics), environmental (solar radiation, terrain conditions, trunk zenith), temporal (time since wind damage), and beetle infestation (presence, location of attack, bark desiccation) parameters. We applied Generalized Additive Mixed Models (GAMM) to unravel the main drivers of I. typographus infestations.
Results: Over the first year, beetles preferred to attack broken trees and sun-exposed trunk sides over uprooted trees; the infestation on shaded sides started in the second year along with the infestation of uprooted trees with lower desiccation rates. We found that time since wind damage, stem length, and incident solar radiation increased the probability of beetle infestation, although both solar radiation and trunk zenith exhibited nonlinear variability. Our novel variable trunk zenith appeared to be an important predictor of bark beetle infestation probability. We conclude that trunk zenith as a simple measure defining the position of downed trees over the terrain can anticipate beetle infestation.
Conclusions: Our findings contribute to understanding of the bark beetle's preferences to colonize windthrown trees in the initial years after the primary wind damage. Further, our findings can help to identify trees that are most susceptible to beetle infestation and to prioritize management actions to control beetle population while maintaining biodiversity.
YSO-asiasanat: metsätuhot; tuulituhot; hyönteistuhot; metsäkuusi; kirjanpainaja (kaarnakuoriaiset)
Vapaat asiasanat: Picea abies; Ips typographus; disturbance; wind; epidemics; GAMM; bark beetle
Liittyvät organisaatiot
Hankkeet, joissa julkaisu on tehty
- Skenaarioita biodiversiteetin, ekosysteemipalveluiden ja ihmisen terveyden yhteensovittamiseksi
- Mönkkönen, Mikko
- Suomen Akatemia
OKM-raportointi: Kyllä
Raportointivuosi: 2020
JUFO-taso: 1