The sampling frame for this study was the Twins Early Development Study (TEDS), a large-scale longitudinal study of behavioural development in a representative sample of twins born in 1994, 1995 and ...
Introduction -- Density : mean and variance -- Normal and sampling distributions for fieldwork -- Confidence limits and intervals for density -- How many field samples? -- Spatial distribution : the ...
Sorensen, L. L., Coddington, Jonathan A., Griswold, C. E., Hormiga, G., and Place Bjorn, P. de. 2002. "Inventorying and Estimating Sub-Canopy Spider Diversity using ...
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