NDLI: Density effects on the conifer mortality in declining spruce-fir forest in northern Japan: Implication of bark beetle attack to, cause spruce decline

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Stand structure and establishment process of an old-growth stand in the mixed deciduous broadleaf/conifer forest of Mt. Moiwa Forest Reserve, central Hokkaido, Northern Japan

Blue stain fungi associated withTomicus piniperda (Coleoptera: Scolytidae) on Japanese red pine

Performances of four chemicals with floral scents as attractants for longicorn beetles (Coleoptera: Cerambycidae) in a broadleaved forest

Spatial distribution pattern of attack of the oak borer,Platypus quercivorus (Murayama) (Coleoptera: Platypodidae), and scolytid ambrosia beetles (Coleoptera: Scolytidae) on fresh logs

Density effects on the conifer mortality in declining spruce-fir forest in northern Japan: Implication of bark beetle attack to, cause spruce decline

Progeny differences of hinoki (Chamaecyparis obtusa) and sawara (C. pisifera) against resinous stem canker disease and spatial distribution of damage (disease severity) in a progeny test

Distribution of ectomycorrhizas and ectomycorrhizal fungal inoculum with soil depth in a birch forest

Boring activity on coniferous tree branches byXylotrechus villioni (Villard) larvae (Coleoptera: Cerambycidae)

Journal of Forest Research : Volume 3, Issue 3, August 1998

Journal of Forest Research : Volume 3, Issue 2, May 1998

Journal of Forest Research : Volume 3, Issue 1, February 1998

Journal of Forest Research : Volume 2

Density effects on the conifer mortality in declining spruce-fir forest in northern Japan: Implication of bark beetle attack to, cause spruce decline

Content Provider	Springer Nature Link
Author	Ozaki, Kenichi Fukuyama, Kenji Maetô, Kaoru Itoh, Kensuke
Copyright Year	1998
Abstract	We examined mortality patterns of two conifer species in relation to tree abundance and species composition in a declining spruce-fir forest in Akan National park, Hokkaido, northern Japan. The data taken from eleven 58 m × 58 m square study plots showed that percentage basal area (BA) of dead trees of canopy trees during the last decade was 49% forPicea jezoensis (Sieb. et Zucc.) Carr and 30% forAbies sachalinensis (Fr. Schm.) Masters. InP. jezoensis, percentage basal area (BA) of dead trees was positively related to both BA of its own species and proportion of it to BA of all species, whereas it was not significantly related to both of these variables inA. sachalinensis. Multiple logistic regression with dbh as a confounding factor also indicated that, inP. jezoensis, the proportion of dead stems was positively affected by the stem density of conspecific trees, whereas it was negatively affected by the stem density of the other species in each study plot. However, inA. sachalinensis, the proportion of dead stems was significantly related to neither of these factors. The different mortality pattern between two conifer species suggests that the spruce bark beetle,Ips typographus (L.), which is a serious pest of spruce, may have caused theP. jezoensis decline. Instead of wind-throw or thinning that usually initiate this bark beetle attack, some unknown factors seemed to predispose the trees to insect attack. These unknown factors may also explain the high mortality ofA. sachalinensis in this forest.
Starting Page	231
Ending Page	235
Page Count	5
File Format	PDF
ISSN	13416979
Journal	Journal of Forest Research
Volume Number	3
Issue Number	4
e-ISSN	16107403
Language	English
Publisher	Springer-Verlag
Publisher Date	1998-01-01
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	biotic factors boreal forest density dependent mortality forest decline spatial pattern Forestry Forestry Management Tree Biology Plant Sciences Plant Ecology
Content Type	Text
Resource Type	Article
Subject	Forestry

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