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Titolo:
Tree shape, forest structure and diversity of drosophilid community: Comparison between boreal and temperate birch forests
Autore:
Tanabe, SI; Toda, MJ; Vinokurova, AV;
Indirizzi:
Hokkaido Univ, Inst Low Temp Sci, Biodivers Grp, Kita Ku, Sapporo, Hokkaido 0600819, Japan Hokkaido Univ Sapporo Hokkaido Japan 0600819 oro, Hokkaido 0600819, Japan Yakut State Univ, Fac Biol & Geog, Gen Biol Subfac, Yakutia, Russia Yakut State Univ Yakutia Russia Geog, Gen Biol Subfac, Yakutia, Russia
Titolo Testata:
ECOLOGICAL RESEARCH
fascicolo: 3, volume: 16, anno: 2001,
pagine: 369 - 385
SICI:
0912-3814(200109)16:3<369:TSFSAD>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPECIES-DIVERSITY; LATITUDINAL GRADIENTS; VERTICAL-DISTRIBUTION; FLYING INSECTS; HETEROGENEITY; ARCHITECTURE; SUCCESSION; HYPOTHESIS; PATTERN; PLANT;
Keywords:
community stratification; habitat complexity; latitudinal clines; sun-angle-based model; vertical distribution;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
62
Recensione:
Indirizzi per estratti:
Indirizzo: Tanabe, SI Hokkaido Univ, Inst Low Temp Sci, Biodivers Grp, Kita Ku, Nishi8,Kita 19,Sapporo, Hokkaido 0600819, Japan Hokkaido Univ Nishi 8,Kita 19 Sapporo Hokkaido Japan 0600819 an
Citazione:
S.I. Tanabe et al., "Tree shape, forest structure and diversity of drosophilid community: Comparison between boreal and temperate birch forests", ECOL RES, 16(3), 2001, pp. 369-385

Abstract

Some models, based on the latitudinal variation in sun angle distribution,predict that trees at high latitudes have narrowly conical crowns and constitute simple-layered forests, whereas trees at low latitudes have shallowly dome-shaped and form more structurally complex multilayered forests. There is a hypothesis that structurally complex habitats can harbor potentiallymore species than simple ones. In this study, we examined latitudinal correlations between tree shape, forest structure and diversity in drosophilid communities, comparing boreal and cool-temperate forests. We selected secondary birch forests with a common canopy tree species, white birch (Betula platyphylla Sukatchev), as study sites. The crown shape of white birch tended to be spherical in the cool-temperate forest, but narrowly conical in theboreal forest. The foliage structure differed between the two forests. Thecool-temperate forest was characterized by a clearly two-layered structure, whereas foliage in the boreal forest was less clearly stratified, being distributed somewhat continuously from the ground to the canopy at lower densities. The structural complexity expressed by foliage height diversity wasgreater in the cool-temperate forest than in the boreal forest. Various measures of drosophilid diversity were higher in the cool-temperate forest than in the boreal forest, probably resulting from the impoverishment of the canopy subcommunity in the boreal forest. Thus, a physical environmental factor (i.e. the angle of solar inclination) could be a potentially importantfactor in structuring latitudinal patterns of sylvan animal communities through changes in plant structure at the individual and community levels.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 21:57:44