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An Evaluation of an Experimental Model for Sympatric Speciation

(a) Equal amounts of each attractant

(a) Equal amounts of each attractant

The results of the experiment using equal amounts of each attractant are shown in Table I.

Table I .
Attractant Preferences
Ovipositional choice of amyl alcohol females.
Day Eggs laid in amyl alcohol % of total Eggs laid in ammonium carbonate % of total
1 163 56.75 128 43.25
2 1,227 60.18 812 39.82
3 95 100.00 0 0.00
4 198 53.70 169 43.06
Ovipositional choice of ammonium carbonate females.
Day Eggs laid in amyl alcohol % of total Eggs laid in ammonium carbonate % of total
1 34 100.00 0 0.00
2 1,129 96.99 35 3.01
3 278 100.00 0 0.00
4 249 100.00 0 0.00