Data/hora: 04/06/2024 02:54:39

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 08/10/2008
Data da última atualização: | 08/10/2008
Autoria: | RO¿EN, A.; MYS³AJEK, R. W.
Título: | Seasonal changes in earthworm communities along altitudinal gradient in Silesian Beskid Mountains (Southern Poland).
Ano de publicação: | 2008
Fonte/Imprenta: | In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
Idioma: | Inglês

Conteúdo:

The Silesian Beskid range is the most western part of the Carpathians. The highest peak reaches
1257 m a. s. l. The climate is characterized by high precipitation (1200 mm per year) and long
lasting snow cover. The mountains are densely forested with clear altitudinal zonation of
vegetation: uplands (200-550 m a. s. l.), lower forest zone (beech-spruce, 550 - 1100 m a. s. l.)
and higher forest zone (spruce, 1100-1350 m a. s. l.). The study on earthworms was carried out
along altitudinal gradient (500 ? 1000 m a. s. l.) in three vegetation zones ? both in the meadows
and in the forested sites (beech, spruce, oak-hornbeam, alder-ash carr). In spring, summer and
autumn 2004, 2005 and 2006 earthworm communities were checked on 12 study plots. On
every sampling occasion and on every study plot 5 samples (20×20×20 cm) were dug out.
Earthworms were separated from soil by hand sorting.
There were eight earthworm species found: Aporrectodea caliginosa, A.rosea, Dendrobaena
octaedra, Dendrodrilus rubidus, Eisenia lucens, Lumbricus castaneus, L. rubellus and Octolasion
lacteum. Observed were a decreased diversity and increased dominance on study plots at
higher altitudes. The higher forest zone sites were inhabited mainly by Dendrobaena octaedra
and Eisenia lucens. The richest in species, with the highest density and biomass, were foothill
environments. Most probably, the reason for these observations were harsher climate conditions
(lower temperatures, longer lasting snow cover) at higher altitudes. Multivariate statistics
(clustering) clearly distinguished the communities from foothills meadows from mountain
meadows and forests. Above observations were significant for all study years.

Categoria do assunto: | --
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (43862-1) - UPE - PL - -- - CD0305 -  -  - DIS