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An Evaluation of an Experimental Model for Sympatric Speciation

(b) Egg attractant effects

page 7

(b) Egg attractant effects

From a total of 16 trials, 12 showed a significantly greater percentage of eggs laid in the phial containing the "egg attractant".* The results are summarised in Table II.

Table II .
Attraction Effects of Newly Laid Eggs
TRIAL No. MEDIA and EGGS CONTROL
1 1,000 20
2 1,000 0
3 1,000 20
4 100 1,000
5 200 20
6 500 20
7 100 500
8 1,000 500
9 50 0
10 50 0
11 1,000 100
12 100 1,000
13 1,000 500
14 1,000 100
15 0 1,000
16 0 1,000