Lectures on species interactions and competition
Lectures on species interactions and competition
Lectures on species interactions and competition
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Replacement series (De Wit 1960)<br />
(a)<br />
(b)<br />
If the output ratio is equal to the ratio of the input for all seed mixes<br />
(diag<strong>on</strong>al line in (a) then there is no competiti<strong>on</strong>. If for all input ratios, the<br />
output ratio (biomass of A/biomass of B) is c<strong>on</strong>sistently less than the<br />
input ratio (seeds of A/seeds of B) then B will eliminate A, <strong>and</strong> vice versa.<br />
If the output ratios vary with differing input ratios, there can be two<br />
(<br />
outcomes.<br />
• If the slope is >45˚, then competiti<strong>on</strong> will eliminate <strong>on</strong>e of the <strong>species</strong><br />
depending <strong>on</strong> the input ratio.<br />
• If the slope is
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