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pro vyhledávání: '"Håkan Häggström"'
Publikováno v:
Chemoecology. 13:123-127
The harvestman Mitopus morio (Phalangidae) is a generalist predator. It is known to prey on larvae of the chrysomelid leaf beetle Oreina cacaliae defended by plant acquired pyrrolizidine alkaloids (PAs). Tracer feeding experiments were performed to d
Publikováno v:
Ecological Entomology. 22:445-452
1. Free-living insects are often thought of as more vulnerable to environmental hazards than concealed insects, such as galling or mining insects. The possibility that larvae of the free-living leaf beetle Galerucella lineola seek out existing plant
Publikováno v:
European Journal of Plant Pathology. 102:875-881
Pure species and F1 hybrid families ofSalix viminalis andS. dasyclados were tested for resistance to four single uredinium isolates ofMelampsora rust in laboratory experiments using excised leaves. Rust isolates were derived from:S. viminalis, S. das
Autor:
Stig Larsson, Håkan Häggström
Publikováno v:
Oecologia. 104(3)
The slow growth/high mortality hypothesis predicts that herbivorous insects feeding on suboptimal host plants are subjected to higher predation mortality owing to the longer time spent in the vulnerable juvenile stages compared with conspecifics feed