Neotropical woodlice (isopoda) colonizing leaf-litter of pioneer plants in a coal residue disposal environment

Revista Brasileira de Ciência do Solo

卷:35

Aline Ferreira Quadros¹  Gilberto Gonçalves Rodrigues²  Paula Beatriz Araujo³  Luciana Regina Podgaiski³ 

[1] Universidade Federal da Integração Latino-Americana;

[2] Universidade Federal de Pernambuco;

[3] Universidade Federal do Rio Grande do Sul;

关键词: detritívoros;    resíduos do carvão;    bolsas de serapilheira;   

DOI  :  10.1590/S0100-06832011000300010

来源: DOAJ

【 摘 要 】

The irregular disposal of coal combustion residues has adverse impacts on terrestrial ecosystems. Pioneer plants and soil invertebrates play an important role in the recovery of these areas. The goal of this study was to investigate the colonization patterns of terrestrial isopods (Oniscidea) in leaf litter of three spontaneous pioneer plants (grass - Poaceae, shrub - Euphorbiaceae, tree - Anarcadiaceae) at sites used for fly ash or boiler slag disposal. The experiment consisted of eight blocks (four per disposal site) of 12 litter bags each (four per plant species) that were randomly removed after 6, 35, 70 or 140 days of field exposure. Three isopod species were found in the litter bags: Atlantoscia floridana (van Name, 1940) (Philosciidae; n = 116), Benthana taeniata Araujo & Buckup, 1994 (Philosciidae; n = 817) and Balloniscus sellowii (Brandt, 1833) (Balloniscidae; n = 48). The isopods colonized the three leaf-litter species equally during the exposure period. However, the pattern of leaf-litter colonization by these species suggests a conflict of objectives between high quality food and shelter availability. The occurrence of A. floridana and the abundance and fecundity of B. taeniata were influenced by the residue type, indicating that the isopods have different degrees of tolerance to the characteristics of the studied sites. Considering that terrestrial isopods are abundant detritivores and stimulate the humus-forming processes, it is suggested that they could have an indirect influence on the soil restoration of this area.

【 授权许可】

Unknown