Wood ants and a geometrid defoliator of birch: predation outweighs beneficial effects through the host plant

  title={Wood ants and a geometrid defoliator of birch: predation outweighs beneficial effects through the host plant},
  author={Kari J. Karhu and Seppo Neuvonen},
Soil amelioration by a wood-ant species and its consequences for the larval performance of autumnal moths feeding on mountain birch were studied at various distances from the nest mound. Soil nitrate and ammonium nitrogen did not show any clear relationship with distance. However, trees growing in the mound had over 20% more foliar nitrogen than more distant trees. When moth larvae were experimentally protected from predation, their survival rate and final weight tended to decrease with… CONTINUE READING
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Publications referenced by this paper.
Showing 1-10 of 39 references

Nests and nest sites of red wood ants (Hymenoptera, Formicidae) in Subarctic Finland

KJ Laine, P NiemelaÈ
Ann Entomol Fenn • 1989
View 4 Excerpts
Highly Influenced

Green islands — predation not nutrition

Oecologia • 1986
View 7 Excerpts
Highly Influenced

The in ̄uence of ants on the survival of mountain birches during an Oporinia autumnata (Lep., Geometridae) outbreak

KJ Laine, P NiemelaÈ
Oecologia • 1980
View 10 Excerpts
Highly Influenced

Nitrate and exchangeable ammonium nitrogen. In: Carter MR (ed) Soil sampling and methods of analysis

DG Maynard, YP Kalra
View 1 Excerpt
Highly Influenced

Stressful times for the plant stress ± insect performance hypothesis

S Larsson
Oikos • 1989
View 3 Excerpts
Highly Influenced

Koivun juuristo (Summary: The root system of birch Betula verrucosa and odorata)

E Laitakari
Acta For Fenn • 1935
View 2 Excerpts
Highly Influenced

Insects on trees: population and individual response to fertilization

M KytoÈ, P NiemelaÈ, S Larsson
Oikos • 1996
View 1 Excerpt

On the recovery of mountain birch after Epirrita damage in Finnish Lapland, with a particular emphasis on reindeer grazing

J Lehtonen, RK Heikkinen
EÂ • 1995
View 1 Excerpt

Within-tree and among-tree variation in growth of Epirrita autumnata on mountain birch leaves

J Suomela, A Nilson
Ecol Entomol • 1994
View 2 Excerpts

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