Investigation of factors affecting bark-stripping by Japanese black bears (Ursus thibetanus japonicus Schlegel) in Sugi (Cryptomeria japonica (Thunb. ex L.f.) D. Don) plantation

We analyzed forest cover, structure and environment of bark-stripped stands by Japanese black bear (Ursus thibetanus japonicus Schlegel) in Sugi plantations (Cryptomeria japonica (Thunb. ex L.f.) D. Don) of Utsunomiya University Forest and investigated factors affecting bark-stripping. Bark-stripped...

Full description

Saved in:
Bibliographic Details
Published inJournal of the Japanese Society of Revegetation Technology Vol. 45; no. 1; pp. 109 - 114
Main Authors Jyunichi, OHSHIMA, Seika, YAMASHITA, Kazuya, IIZUKA
Format Journal Article
LanguageEnglish
Japanese
Published Tokyo JAPANESE SOCIETY OF REVEGETATION TECHNOLOGY 31.08.2019
Japan Science and Technology Agency
Subjects
Bark
bark-stripping
Bears
Cryptomeria japonica
forest cover
forest environment
forest structure
Forests
Independent variables
Lager
Multiple regression analysis
Plantations
Stripping
Ursus thibetanus japonicas
Ursus thibetanus japonicus
Vegetation cover
Online AccessGet full text

Cover

More Information
Summary:We analyzed forest cover, structure and environment of bark-stripped stands by Japanese black bear (Ursus thibetanus japonicus Schlegel) in Sugi plantations (Cryptomeria japonica (Thunb. ex L.f.) D. Don) of Utsunomiya University Forest and investigated factors affecting bark-stripping. Bark-stripped stands had lager DBH, crown length and volume, and lower clear length ratio, form ratio, species number and vegetation cover percentage of shrub layer. These were located apart from national road and close to ridge top. Multiple regression analysis revealed crown length, relative spacing, slope angle and distance from ridge top were significant independent variables for percentage of bark-stripped trees.
ISSN:0916-7439
0916-7439
DOI:10.7211/jjsrt.45.109