skip to main content
Idioma:

The effects of drought upon epigeal Collembola from arable soils

Alvarez, T. ; Frampton, G. K. ; Goulson, D.

Agricultural and forest entomology, 1999-11, Vol.1 (4), p.243-248 [Periódico revisado por pares]

Oxford, UK: Blackwell Science Ltd

Texto completo disponível

Citações Citado por
  • Título:
    The effects of drought upon epigeal Collembola from arable soils
  • Autor: Alvarez, T. ; Frampton, G. K. ; Goulson, D.
  • Assuntos: Aestivation ; anhydrobiosis ; Bourletiella hortensis ; climate change ; desiccation ; dispersal ; pesticide side-effects ; Sminthuridae ; Sminthurus ; springtails ; temperate agroecosystems
  • É parte de: Agricultural and forest entomology, 1999-11, Vol.1 (4), p.243-248
  • Notas: istex:B7DD564F37501EDFCD07A19FDD1B12DEDC616639
    ark:/67375/WNG-4X0MM6B7-F
    ArticleID:AFE032
    ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
    content type line 23
  • Descrição: Summary 1 Springtails (Hexapoda, Collembola) are usually associated with moist microhabitats. However, some species show adaptations to ecosystems subjected to periodic desiccation. This study examined the effects of short‐term drought conditions upon epigeal Collembola collected from arable fields. 2 An emergence trap was used in the laboratory to investigate collembolan activity, particularly the emergence of newly hatched juveniles from soils subjected to a simulated drought and to varied levels of simulated rainfall. 3 Addition of water to soils subjected to a 4‐month simulated drought resulted in synchronized emergence of juveniles of Sminthurinus elegans, Sminthurus viridis and Bourletiella hortensis. As anhydrobiotic nymphs were not found in the soil, these juveniles are likely to have recently hatched from eggs in the soil. 4 The same species were shown to emerge when desiccated soil samples were treated with simulated heavy rainfall. No emergence occurred in soils which received no water, whilst only a few juveniles were present under a regime of the lowest monthly rainfall recorded for the area in the spring. 5 This study provides the first evidence that in northern European arable systems some epigeal Collembola can survive considerable periods of drought as eggs, emergence of which is triggered by rainfall. These findings have implications for the effects of predicted climatic changes upon collembolan populations, the recovery of collembolan communities following pesticide applications in agroecosystems, and also provide a plausible mechanism for dispersal of Collembola as wind‐blown eggs.
  • Editor: Oxford, UK: Blackwell Science Ltd
  • Idioma: Inglês
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.