Journalartikel

Jahr der Veröffentlichung: 1983

Seiten: 73-85

Zeitschrift: Pedobiologia: Journal of Soil Ecology

Bandnummer: 25

Heftnummer: 2

DOI Link: https://doi.org/10.1016/S0031-4056(23)05910-3

Verlag: Elsevier

Abstract: 

Collembola of a German beech forest on limestone were sampled monthly from December 1979 to November 1980 using corers of two different sizes, pitfall-traps, an arboreal photo-eclector, and an aspirator, respectively. Population density varied between 22,000 and 66,000 individuals per m2 (average density: 37,000 individuals per m2). A total of 44 species was found. The most abundant species were I. minor > T. krausbaueri > F. quadrioculata. Collembolan biomass ranged from 100 to 230 mg dwt. m-2., with T. flavescens and L. lignorum being the species with the highest average biomass. About 60% of the Collembola occurred in the uppermost 3 cm of the soil. Only the vertical distribution of F. quadrioculata closely correlated with temperature. A comparison of the spring and the fall generation suggests that the distribution pattern of this species is modulated by climate and resource availability. Though the dispersion of the sufficiently sampled species closely fits to the negative binomial, no common k could be established. According to the Morisita index of dispersion, H. denticulata had the most, M. minimus the least significant deviation from random distribution. Some species were closely restricted to microhabitats. T. callipygos preferred areas of the forest floor that are covered by Anemone nemorosa. This might be due to the lower pH-values of these areas. The surface structure and the herbaceous layer had a marked influence on the mobility of certain collembolan species, with H. denticulate having the highest activity density. Some species occurred in high numbers in an arboreal photo-eclector two meter above ground level. Most of the typical arboreal species preferred parts of the trunks covered by a thick layer of epiphytic algae. The density of T. flavescens and E. muscorum increased in close proximity to the trees during the summer months. Hatching periods and the number of generations were estimated by means of size class analysis. S. viridis, D. ornata and B. bicincta seem to remain in a state of egg diapause during part of the year.  (Remark: This is a linguistically improved version of the original abstract.)

Harvard-Zitierstil: Wolters, V. (1983) Ökologische Untersuchungen an Collembolen eines Buchenwaldes auf Kalk, Pedobiologia: Journal of Soil Ecology, 25(2), pp. 73-85. https://doi.org/10.1016/S0031-4056(23)05910-3

APA-Zitierstil: Wolters, V. (1983). Ökologische Untersuchungen an Collembolen eines Buchenwaldes auf Kalk. Pedobiologia: Journal of Soil Ecology. 25(2), 73-85. https://doi.org/10.1016/S0031-4056(23)05910-3