Incubation temperatures from 81 to 88 �F ( 27 31 �C ) resulted in hatching rates exceeding 83 %, while incubation at 77 �F ( 25 �C ) resulted in a 53 % hatching rate.
32.
Harrison ( 1967 ) found that eggs hatched in 43 45 days, but Marks and Collanzo found 68 75 days . This may be due to different incubation temperatures, but the difference has not been fully explored.
33.
Eggs incubated at temperatures of 31 to 32 �C will produce only females; eggs incubated at 28 �C or less will produce solely males; and incubation temperatures of 29 to 30 �C will produce a mixed sex clutch.
34.
In support of the Charnov and Bull hypothesis, Warner and Shine ( 2008 ) showed confidently that incubation temperature influences males reproductive success differently than females in Jacky Dragon lizards ( " Amphibolurus muricatus " ) by treating the eggs with chemicals that interfere with steroid hormone biosynthesis.
35.
The male pursues a female and mounts her and she lays 3-5 eggs in the gravel The eggs hatch after around 8 10 days after an incubation temperature of 21?23 �C Blueside darter diet consists of midge larvae, microcrustaceans, and mayfly nymphs The males have been known to produce Schreckstoff substances that serve to warn nearby fish in case of an attack.
