Damuth law

<p>There is a relationship between body mass and population density, namely:</p> <p>$$d = aW^{-\frac{3}{4}}$$</p> <p>Where $d$ is the density, and $W$ is the average body mass[@zotero-705]. </p> <p>This law is used, for example, to calculate the <a class="wikilink" href="/population_density_of_t._rex/">population density of T. Rex</a> at any one point in time[<a class="litnote tooltip" href="/literature/@marshall2021">@marshall2021<span class="tooltiptext">Absolute abundance and preservation rate of Tyrannosaurus rex</span></a>].</p> <p>It must be noted that the law is a 0-order approximation. Flesh-eating mammals have a 150-fold variation in population density for species of the same body mass[<a class="litnote tooltip" href="/literature/@marshall2021">@marshall2021<span class="tooltiptext">Absolute abundance and preservation rate of Tyrannosaurus rex</span></a>].</p>