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Can I read Opposing Effects of Grazing and Nutrients on Diversity on EtoBox?
Opposing Effects of Grazing and Nutrients on Diversity by Helmut Hillebrand is a Environmental Science article available to read on EtoBox.
What is Opposing Effects of Grazing and Nutrients on Diversity about?
Conceptual models predict counteractive effects of herbivores and nutrient enrichment on plant diversity and reversed effects of grazers under different nutrient regimes. I tested these hypotheses in 11 field experiments with periphyton communities in three different aquatic habitats (a highly eutrophic lake, an meso‐eutrophic lake, and an meso‐eutrophic part of the Baltic Sea coast) and in different seasons. Grazer access and nutrient supply were manipulated in a factorial design. Species richness and evenness were chosen as response variables. Both manipulated factors had significant and contrasting effects on diversity, with variable effect strength between sites and seasons. From the two aspects of diversity, evenness well reflected the changes in community composition. Fertilization tended to increase the dominance of few species and thus to decrease evenness, whereas grazers counteracted these effects by removing dominant life forms. The response of species richness was not as expected, since grazers decreased richness throughout, whereas nutrients had weaker effects but tended to increase richness. Species richness rather reflected changes in periphyton architecture. Grazers
Who reads Opposing Effects of Grazing and Nutrients on Diversity?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Helmut Hillebrand
- Publisher
- John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley; JSTOR (ISSN 0030-1299)
- Published
- 2003
- Language
- EN
- Field
- Environmental Science (Physical Sciences)