https://en.formulasearchengine.com/w/api.php?action=feedcontributions&feedformat=atom&user=129.169.174.19 2026-07-07T01:54:33Z User contributions MediaWiki 1.47.0-wmf.7 https://en.formulasearchengine.com/w/index.php?title=Bell_Laboratories_Layered_Space-Time&diff=17976 2014-01-08T14:56:42Z

<p>129.169.174.19: </p> <hr /> <div>{{Unreferenced|date=February 2011}}<br /> '''Biological exponential growth''' is the exponential growth of biological organisms. When the resources availability is unlimited in the [[habitat]], the [[population]] of an [[organism]] living in the habitat grows in an [[Exponential growth|exponential]] or geometric fashion.<br /> <br /> Resource availability is obviously essential for the unimpeded growth of a population. Ideally, when resources in the habitat are unlimited, each species has the ability to realise fully its innate potential to grow in number, as [[Charles Darwin]] observed while developing his theory of [[natural selection]].<br /> <br /> If, in a hypothetical population of size ''N'', the birth rates (per capita) are represented as ''b'' and death rates (per capita) as ''d'', then the increase or decrease in ''N'' during a time period ''t'' will be:<br /> <br /> &lt;math&gt;dN/dt=(b-d)N&lt;/math&gt;<br /> <br /> (b-d) is called the 'intrinsic rate of natural increase' and is a very important parameter chosen for assessing the impacts of any biotic or [[Abiotic components|abiotic factor]] on population growth.<br /> <br /> Any species growing exponentially under unlimited resource conditions can reach enormous [[Population density|population densities]] in a short time. Darwin showed how even a slow growing animal like the [[elephant]] could reach an enormous population if there were unlimited resources for its growth in its habitat.<br /> <br /> If birth giving takes two parents we get [[Nurgaliev's law]].<br /> <br /> <br /> [[Category:Biology]]<br /> [[Category:Biology articles needing attention]]<br /> [[Category:Population ecology]]</div>

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