Effects of long-term warming and fertilisation on microarthropod abundances in three sub-arctic ecosystems.

Heidi Sjursen; Anders Michelsen; Sven Evert Jonasson

doi:10.1016/j.apsoil.2005.02.013

Effects of long-term warming and fertilisation on microarthropod abundances in three sub-arctic ecosystems.

Heidi Sjursen, Anders Michelsen, Sven Evert Jonasson

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

67 Citationer (Scopus)

Abstract

Udgivelsesdato: November 2005

Originalsprog	Engelsk
Tidsskrift	Agriculture, Ecosystems & Environment. Applied Soil Ecology
Vol/bind	30
Udgave nummer	3
Sider (fra-til)	148-161
ISSN	0929-1393
DOI	https://doi.org/10.1016/j.apsoil.2005.02.013
Status	Udgivet - 2005

Bibliografisk note

Keywords: Acari; Arctic-alpine; Climate change; Collembola; Field experiment; Leaf litter

Adgang til dokumentet

10.1016/j.apsoil.2005.02.013

Citationsformater

@article{373422d074c311dbbee902004c4f4f50,

title = "Effects of long-term warming and fertilisation on microarthropod abundances in three sub-arctic ecosystems.",

abstract = "Soil microarthropod responses to long-term soil warming and increased fertilisation by addition of NKP or litter were assessed in three subarctic ecosystems. The experiment was carried out at three different field sites, where temperature and fertilisation manipulations had been running for 3-5 years (glade), 11 years (fellfield), and 12 years (heath) at the time of sampling. In the glade soil, warming led to decreases in Collembola and Gamasida, and increases in Oribatida, although effects were inconsistent between years. Actinedida densities were increased by fertilization, while Acaridida had higher densities in the treatment with both fertilisation and warming. In the fellfield, we found increased densities of Oribatida, Gamasida and Actinedida in the fertilised treatments, and some increases in Oribatida and decreases in Collembola and Gamasida in warming treatments. In the heath, there were increased densities of Collembola, Oribatida and Actinedida in the fertilised treatments, but we found no strong effects of warming. We suggest that the responses found in this study comply with the assumption that soil microarthropods are bottom-up controlled, and the observed changes are probably linked to changes in food availability more than direct climatic influences.",

author = "Heidi Sjursen and Anders Michelsen and Jonasson, {Sven Evert}",

note = "Keywords: Acari; Arctic-alpine; Climate change; Collembola; Field experiment; Leaf litter",

year = "2005",

doi = "10.1016/j.apsoil.2005.02.013",

language = "English",

volume = "30",

pages = "148--161",

journal = "Applied Soil Ecology",

issn = "0929-1393",

publisher = "Elsevier",

number = "3",

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TY - JOUR

T1 - Effects of long-term warming and fertilisation on microarthropod abundances in three sub-arctic ecosystems.

AU - Sjursen, Heidi

AU - Michelsen, Anders

AU - Jonasson, Sven Evert

N1 - Keywords: Acari; Arctic-alpine; Climate change; Collembola; Field experiment; Leaf litter

PY - 2005

Y1 - 2005

N2 - Soil microarthropod responses to long-term soil warming and increased fertilisation by addition of NKP or litter were assessed in three subarctic ecosystems. The experiment was carried out at three different field sites, where temperature and fertilisation manipulations had been running for 3-5 years (glade), 11 years (fellfield), and 12 years (heath) at the time of sampling. In the glade soil, warming led to decreases in Collembola and Gamasida, and increases in Oribatida, although effects were inconsistent between years. Actinedida densities were increased by fertilization, while Acaridida had higher densities in the treatment with both fertilisation and warming. In the fellfield, we found increased densities of Oribatida, Gamasida and Actinedida in the fertilised treatments, and some increases in Oribatida and decreases in Collembola and Gamasida in warming treatments. In the heath, there were increased densities of Collembola, Oribatida and Actinedida in the fertilised treatments, but we found no strong effects of warming. We suggest that the responses found in this study comply with the assumption that soil microarthropods are bottom-up controlled, and the observed changes are probably linked to changes in food availability more than direct climatic influences.

AB - Soil microarthropod responses to long-term soil warming and increased fertilisation by addition of NKP or litter were assessed in three subarctic ecosystems. The experiment was carried out at three different field sites, where temperature and fertilisation manipulations had been running for 3-5 years (glade), 11 years (fellfield), and 12 years (heath) at the time of sampling. In the glade soil, warming led to decreases in Collembola and Gamasida, and increases in Oribatida, although effects were inconsistent between years. Actinedida densities were increased by fertilization, while Acaridida had higher densities in the treatment with both fertilisation and warming. In the fellfield, we found increased densities of Oribatida, Gamasida and Actinedida in the fertilised treatments, and some increases in Oribatida and decreases in Collembola and Gamasida in warming treatments. In the heath, there were increased densities of Collembola, Oribatida and Actinedida in the fertilised treatments, but we found no strong effects of warming. We suggest that the responses found in this study comply with the assumption that soil microarthropods are bottom-up controlled, and the observed changes are probably linked to changes in food availability more than direct climatic influences.

U2 - 10.1016/j.apsoil.2005.02.013

DO - 10.1016/j.apsoil.2005.02.013

M3 - Journal article

VL - 30

SP - 148

EP - 161

JO - Applied Soil Ecology

JF - Applied Soil Ecology

SN - 0929-1393

IS - 3

ER -