Details zur Publikation
|Titel (primär)||Above- and belowground interactions are mediated by nutrient availability|
|Autor||Haase, J.; Brandl, R.; Scheu, S.; Schädler, M.|
|Journal / Serie||Ecology|
By influencing nutrient mineralization in the soil, decomposers may affect the performance of plants and their associated herbivores. The strength of above-belowground linkages may therefore depend on the availability of nutrients in ecosystems. We investigated the dependency of decomposer- and leaf-herbivore-mediated changes in plant performance on soil nutrient availability in microcosm systems. In separate treatments, Poa annua was used as host plant for the herbivore and was grown in combination with different herb species: Plantago lanceolata, Trifolium repens, and Sanguisorba minor. At three different levels of nutrient availability, the impact of Collembola (Folsomia candida) and aphids (Rhopalosiphum padi), as well as their interacting effects on plant performance, were investigated. We further assessed the effects of Collembola on the performance of aphids and vice versa, as well as the effects on element contents in P. annua and soil nutrients.
|Haase, J., Brandl, R., Scheu, S., Schädler, M. (2008):
Above- and belowground interactions are mediated by nutrient availability
Ecology 89 (11), 3072 - 3081