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Filtering by: Contributor advisor sim Menge, Bruce Committee Member McEvoy, Peter

Bottom-up and top-down forces in tidepools : the influence of nutrients, herbivores, and wave exposure on community structure

Creator:

Nielsen, Karina Johanna

Abstract:

The relationship between nutrients and community structure is poorly understood in open-coast habitats. I created a system of artificial tidepools, of identical age and physical dimensions, at two sites that differed in wave exposure, and manipulated nutrient levels and the abundance of herbivores. Using these unique field mesocosms, I explored...

Resource Type:

Dissertation
Grazing, nutrients, and marine benthic algae : insights into the drivers and protection of diversity

Creator:

Guerry, Anne D., 1973-

Abstract:

Two of the most powerful ways in which humans have altered ecosystems are by increasing productivity and changing the densities of important consumers. The bottom-up effects of productivity and the top-down effects of consumers have been identified as primary determinants of biological diversity, though the links between them remain unclear....

Resource Type:

Dissertation