Steve Kahl

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We assembled 831 data points for total mercury (Hg(t)) and 277 overlapping points for methyl mercury (CH3Hg+) in surface waters from Massachussetts, USA to the Island of Newfoundland, Canada from State, Provincial, and Federal government databases. These geographically indexed values were used to determine: (a) if large-scale spatial distribution patterns(More)
Small World research (Watts and Strogatz 1998) has shown that " rewiring " just a few ties to be shortcuts across an otherwise clustered network structure results in a dramatic decline in the average distance between nodes but has only a modest effect on the degree of clustering. Accordingly, Small World structures seem to strike an attractive balance(More)
Please do not cite or quote without permission of the authors We thank for their comments on earlier versions of this paper Rich D'Aveni, This last version of the paper greatly benefited from comments made by Jerry Davis and Linda Johanson. We also thank Andrew Tyndall for generously giving us access to data on the monthly volume of media coverage of the(More)
We argue that the performance benefits of interpersonal heterogeneity are subject to three common failure points. First, heterogeneous people tend to homogenize over time with repeated exposure, leading any benefits of interpersonal heterogeneity to decay with time. Second, groups composed of heterogeneous people tend to be fragile; they are both more(More)