Book
Resource requirements and competitive interactions of two closely related Stephanodiscus species for silicon and nitrogen
01 Jan 2002
Abstract
Two closely related Stephanodiscus species are found in lakes in the Greater Yellowstone Ecosystem. S. yellowstonensis is endemic to Yellowstone Lake and S. niagarae, from which it evolved ca. 10,000 years BP, is now found in nearby lakes. Yellowstone Lake is very low in N, can become Si limited, and has high P The Si and N kinetics for these two species were determined and competition experiments were performed under Si and N limitation. S. yellowstonensis is the better competitor for nitrogen (optimal Si:N = 20.8) and S. niagarae is the better competitor for silicon (optimal Si:N = 2.4). Differences in physiological characteristics, especially for nitrogen, may have contributed to the rapid evolution of this new species.
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Details
- Title
- Resource requirements and competitive interactions of two closely related Stephanodiscus species for silicon and nitrogen
- Creators
- S KilhamS Taylor
- Contributors
- R G Wetzel (Editor)
- Resource Type
- Book
- Language
- English
- Academic Unit
- [Retired Faculty]
- Identifiers
- 3510540611; 9783510540617; 991019170504904721