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Slow recovery of boreal forest ecosystem following decreased nitrogen input
The present study suggests that the time needed for recovery of the ecosystem biota may be substantial in originally N-limited ecosystems.
Sexual Dimorphism and Biotic Interactions
In the last decade, an increasing number of studies have suggested that males and females of dioecious plants may be differentially affected by competition, herbivory, and parasitism. In dioecious…
Parasitic fungus mediates change in nitrogen‐exposed boreal forest vegetation
Experimental additions of N to an old-growth boreal forest resulted in elevated levels of free amino acids in leaves of the dominant dwarf-shrub Vaccinium myrtillus and increased attack from a parasitic fungus, Valdensia heterodoxa, suggesting a causal connection between amino acid availability and fungal infection.
Nitrogen Deposition and the Biodiversity of Boreal Forests: Implications for the Nitrogen Critical Load
Assessment of the critical load of N for boreal forests in northern Sweden shows that important vegetational changes start to take place when adding low N doses and that recovery of the vegetation after ceasing N input is a very slow process.
Boreal Forests—The Focal Habitats of Fennoscandia
This chapter deals with the question of maintaining biological diversity in the boreal forests of Fennoscandia, i.e. the Scandinavian Peninsula and Finland. The boreal coniferous forest, or taiga, is…
Effects of simulated herbivory and intraspecific competition on the compensatory ability of birches
The results indicate that there is little value in asking whether herbivory has a positive or negative effect on plant growth, and suggest that overcompensation should not generally be considered as an adaptive response that has evolved as a consequence of natural selection due to Herbivory, but rather as an indirect consequence of selection for competitive ability.
Phylogenetic patterns in the Uredinales
- Brenda D. Wingßeld, L. Ericson, T. Szaro, Jeremy J. Burdor
- BiologyAustralasian Plant Pathology
- 30 September 2004
It is estimated that the rusts diverged from their closest relatives around 150 million years ago, and within the major clades, there is evidence of in congruency with morphologically defined families.
Associational resistance: insect damage to purple loosestrife reduced in thickets of sweet gale.
The most likely mechanism causing decreased feeding on L. salicaria growing in Myrica thickets is that Myrica affects the ability of G. calmariensis to find its host, either through visual or olfactory interference.
Epiphytic macrolichens as conservation indicators: successional sequence in Populus tremula stands
Effects of simulated N deposition on understorey vegetation of a boreal coniferous forest
The severity of disease caused by two foliar parasitic fungi showed a clear numerical response to N treatment, as did the amount of herbivory as a result of Lepidoptera larvae.