Premium
Seedling establishment of Castanopsis cuspidata var. sieboldii and Persea thunbergii on lava and scoria of the 1962 eruption on Miyake‐jima Island, the Izu Islands
Author(s) -
Kamijo Takashi,
Okutomi Kiyoshi
Publication year - 1995
Publication title -
ecological research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.628
H-Index - 68
eISSN - 1440-1703
pISSN - 0912-3814
DOI - 10.1007/bf02347849
Subject(s) - scoria , lava , seedling , botany , ecological succession , biology , volcano , paleontology
Abstract Seedling establishment of Castanopsis cuspidata var. sieboldii Nakai and Persea thunbergii Kosterm. ( Machilus thunbergii Sieb. et Zucc.) in early succession was studied on the lava and the scoria of the 1962 eruption on Miyake‐jima Island of the Izu Islands. While tall individuals (> 1 m) of P. thunbergii were found on both the lava and the scoria, those of C. cuspidata (> 1 m) were found only on the lava. The height growth rate of C. cuspidata was very low on the scoria, and there was no individual of C. cuspidata taller than 0.4 m on the scoria. The proportion of yellow leaved individuals was much higher (37.1%) in C. cuspidata than in P. thunbergii (4.0%) on the scoria, while it was similar between the two species on the lava. Persea thunbergii seemed to be able to establish on both the lava and the scoria, but C. cuspidata established only on the lava. The differences in growth rate and vigor between the two species on the lava and the scoria in early succession may influence later stages of succession.