Exploitation ecosystems in gradients of primary productivity L Oksanen, SD Fretwell, J Arruda, P Niemela The American Naturalist 118 (2), 240-261, 1981 | 2052 | 1981 |
Nutrient stress: an explanation for plant anti-herbivore responses to defoliation J Tuomi, P Niemelä, E Haukioja, S Sirén, S Neuvonen Oecologia 61, 208-210, 1984 | 326 | 1984 |
Climate change and range shifts in two insect defoliators: gypsy moth and nun moth-a model study H Vanhanen, TO Veteli, S Paivinen, S Kellomaki, P Niemela Silva Fennica 41 (4), 621, 2007 | 218 | 2007 |
Moose browsing on Scots pine along a gradient of plant productivity K Danell, P Niemela, T Varvikko, T Vuorisalo Ecology 72 (5), 1624-1633, 1991 | 153 | 1991 |
Induced accumulation of foliage phenols in mountain birch: branch response to defoliation? J Tuomi, P Niemela, M Rousi, S Siren, T Vuorisalo The American Naturalist 132 (4), 602-608, 1988 | 122 | 1988 |
Birch leaves as a resource for herbivores. I. Variation in the suitability of leaves. E Haukioja, P Niemela, L Iso-Iivari, H Ojala, EM Aro | 111 | 1978 |
Carbon allocation, phenotypic plasticity, and induced defenses J Tuomi, T Fagerstrom, P Niemela Phytochemical induction by herbivores. Wiley, New York, 85-104, 1991 | 98 | 1991 |
Immigrant phytophagous insects on woody plants in the United States and Canada: an annotated list WJ Mattson US Department of Agriculture, Forest Service, North Central Forest …, 1994 | 94 | 1994 |
Climate change and insect pests C Bjorkman, P Niemela Cabi, 2015 | 89 | 2015 |
Tree mortality, needle biomass recovery and growth losses in Scots pine following defoliation by Diprion pini (L.) and subsequent attack by Tomicus piniperda (L.) B Langström, E Annila, C Hellqvist, M Varama, P Niemelä Scandinavian Journal of Forest Research 16 (4), 342-353, 2001 | 79 | 2001 |
Birch leaves as a resource for herbivores. Damage-induced increase in leaf phenols with trypsin-inhibiting effects. P Niemela, EM Aro, E Haukioja | 70 | 1979 |
Does the leaf morphology of some plants mimic caterpillar damage? P Niemela, J Tuomi Oikos 50 (2), 256-257, 1987 | 65 | 1987 |
Comparison of moose browsing on Scots pine (Pinus sylvestris) and lodgepole pine (P. contorta) P Niemela, K Danell Journal of Applied Ecology, 761-775, 1988 | 63 | 1988 |
Chemical aspects of herbivory in boreal forest-feeding by small rodents, hares, and cervids J Tahvanainen, P Niemelä, H Henttonen Plant defenses against mammalian herbivory, 115-131, 1991 | 59 | 1991 |
Species richness in mammalian herbivores: patterns in the horeal zone K Danell, P Lundberg, P Niemela Ecography 19 (4), 404-409, 1996 | 52 | 1996 |
Deterrent in Scots pine, Pinus sylvestris, influencing feeding behaviour of the larvae of Neodiprion sertifer (Hymenoptera, Diprionidae). P Niemala, R Mannila, P Mantsala | 43 | 1982 |
Dependence of Oporinia autumnata (Lep., Geometridae) outbreaks on summer temperature P Niemelä | 43 | 1980 |
Topographical delimitation of Oporinia-damages: experimental evidence of the effect of winter temperature. P Niemela Reports from the Kevo Subarctic Research Station, Finland 15, 33-36, 1979 | 42 | 1979 |
The relationship of adult size in noctuid moths (Lepidoptera, Noctuidae) to breadth of diet and growth form of host plants P HIEMELAE, S Hanhimäki, R Mannila | 38 | 1981 |
Age-specific resistance in trees: defoliation of tamaracks (Larix laricina) by larch bud moth (Zeiraphera improbana)(Lep., Tortricidae). P Niemela, J Tuomi, E Haukioja Reports from the Kevo Subarctic Research Station, Finland 16, 49-57, 1980 | 34 | 1980 |