Metal contamination and food web changes alter exposure to upper trophic levels in upper Blackfoot River basin streams, Montana
- Award ID(s):
- 1633831
- PAR ID:
- 10113100
- Date Published:
- Journal Name:
- Hydrobiologia
- Volume:
- 830
- Issue:
- 1
- ISSN:
- 0018-8158
- Page Range / eLocation ID:
- 93 to 113
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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null (Ed.)For $$r \ge 2$$, let $$X$$ be the number of $$r$$-armed stars $$K_{1,r}$$ in the binomial random graph $$G_{n,p}$$. We study the upper tail $${\mathbb P}(X \ge (1+\epsilon){\mathbb E} X)$$, and establish exponential bounds which are best possible up to constant factors in the exponent (for the special case of stars $$K_{1,r}$$ this solves a problem of Janson and Ruciński, and confirms a conjecture by DeMarco and Kahn). In contrast to the widely accepted standard for the upper tail problem, we do not restrict our attention to constant $$\epsilon$$, but also allow for $$\epsilon \ge n^{-\alpha}$$ deviations.more » « less
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