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Resultados 1-10 de 21
Forest decline and soil nutritional problems in Pacific areas.
1990
Mueller Dombois D.
Densities of endophytic fungi and performance of leafminers (Lepidoptera: Eriocraniidae) on birch along a pollution gradient
1999
Lappalainen, J.H. | Koricheva, J. | Helander, M.L. | Haukioja, E. (Section of Ecology, Department of Biology, University of Turku, FIN-20014 Turku (Finland))
Accumulation of Cu and Ni in successive stages of Lymantria dispar L. (Lymantriidae, Lepidoptera) near ore smelters at Sudbury, Ontario, Canada
1996
Bagatto, G. | Shorthouse, J.D. (Department of Biology, Laurentian University, Sudbury, Ontario P3E 2C6 (Canada))
Variations in chemical composition of birch foliage under air pollution stress and their consequences for Eriocrania miners
1995
Koricheva, J. | Haukioja, E. (Laboratory of Ecological Zoology, Department of Biology, University of Turku, FIN-20500 Turku (Finland))
The effects of simulated acid rain on growth and susceptibility to predation of Phratora polaris (Col., Chrysomelidae)
1995
Palokangas, P. | Neuvonen, S. | Haapala, S. (Kevo Subarctic Research Institute, University of Turku, A777 Kevo, FIN-99800 Ivalo (Finland))
Conifer aphids in an air-polluted environment. II. Host plant quality
1993
Kainulainen, P. | Satka, H. | Mustaniemi, A. | Holopainen, J.K. | Oksanen, J. (Department of Environmental Sciences, University of Kuopio, PO Box 1627, SF-70211 Kuopio (Finland))
Visible injury responses
1990
Arndt, U. | Billen, N. | Seufert, G. | Ludwig, W. | Borkhart, K. | Ohnesorge, B. (Institut fur Landeskultur und Pflanzenokologie, Universitat Hohenheim, W-7000 Stuttgart 70 Hohenheim (Germany))
Nitrogen pollution on the local scale in Lithuania: vitality of forest ecosystems
1998
Armolaitis, K. (Department of Forest Soils, Typology and Hydrology, Lithuanian Forest Research Institute, LT-4312, Kaunas-Girionys (Lithuania))
The effects of ozone-exposed sugar maple seedlings on the biological performance and the feeding preference of the forest tent caterpillar (Malacosoma disstria Hbn.)
1997
Fortin, M. | Mauffette, Y. | Albert, P.J. (Groupe de Recherche en Ecologie Forestiere (GREF), Universite du Quebec a Montreal, C.P. 8888 Succ. A, Montreal, QC H3C 3P8 (Canada))
The response of spruce shoot aphid Cinara pilicornis Hartig to ambient and filtered air at two elevations and pollution climates
1994
Holopainen, J.K. | Braun, S. | Fluckiger, W. (Ecological Laboratory, Department of Environmental Sciences, University of Kuopio, PO Box 1627, SF-70211 Kuopio (Finland))
