@article {1634,
	title = {Ephemeral resource patches as model systems for diversity-function experiments},
	journal = {Oikos},
	volume = {92},
	number = {2},
	year = {2001},
	month = {Feb},
	pages = {363-366},
	url = {<Go to ISI>://000167560700019},
	author = {Finn, J. A.}
}
@article {1667,
	title = {The influence of species diversity on ecosystem productivity: how, where, and why?},
	journal = {Oikos},
	volume = {93},
	number = {3},
	year = {2001},
	pages = {514-526},
	abstract = {The effect of species diversity on ecosystem productivity is controversial, in large part because field experiments investigat- ing this relationship have been fraught with difficulties. Unfortu- nately, there are few guidelines to aid researchers who must overcome these difficulties and determine whether global species losses seriously threaten the ecological and economic bases of terrestrial ecosystems. In response, I offer a set of hypotheses that describe how diversity might influence productivity in plant communities based on three well-known mechanisms: comple- mentarity, facilitation, and the sampling effect. Emphasis on these mechanisms reveals the sensitivity of any diversity-produc- tivity relationship to ecological context (i.e., where this relation- ship should be found); ecological context includes characteristics of the surrounding environment, temporal and spatial scales of observation, and the intensity of human management. In particu- lar, the legitimacy of the sampling effect as a mechanism of productivity enhancement is dependent upon the degree to which stochastic events influence immigration and extinction processes in a given ecosystem. A mechanistic approach also requires that the three mechanisms be separated and quantified in diversity experiments, and I examine the most appropriate analyses for doing so, focusing on the overyielding technique. Finally, I question why productivity per se is a relevant management concern in non-agricultural systems once relationships among diversity, productivity, and the qualities of the surrounding environment are considered. },
	author = {Fridley, Jason D.}
}
