more on SARS


Effects of continuous variables on the slope
z (left column) and the fit rZ (right column) of the power‐law SAR. Blue squares represent nested SAR, red diamonds independent SAR. Each data point represents one SAR. Slope and fit are plotted over the body weight of the organisms (a, b) and the mid‐latitude of the area used in the SAR (c, d). 

Comments

  1. Those line fits look a tad... messy. I'm unsure what is being graphed on the Y axes of these four graphs. The effect of continuous variables on the slope of the power-law Species Area Relationship? What continuous variables? What's this saying, as body weight goes up the slope of the species area relationship goes up? How can body weight be measured against the slope of a line which requires multiple ecological communities to be accounted for? Is it the average body weight of all the organisms counted in the curve? I must have been functioning under a misapprehension, I thought there was just one SAR curve that all habitats, big and small, fell upon somewhere (more or less). But I guess there are multiple different SAR curves at different latitudes (which makes sense) and for different body weights (which doesn't make sense at all to me). Oh drat.

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