Wednesday, September 25, 2013

REPRODUCTION

LEOPARD GECKO

REPRODUCTION:

They are also known to have temperature-dependent sex determination (TSD). Research shows that more females can be produced in predominantly cool temperatures (about 26–30 °C (79–86 °F)) and very warm temperatures (about 34–35 °C (93–95 °F)). It was recorded that males can be produced at the intermediate temperatures (about 31–33 °C (88–91 °F)). Females born in the higher temperatures differed from those who were born in the lower temperatures hormonally and behaviorally. Those born in the warmer temperatures expressed more aggressive behavior.[13]These are known as "hot females" and are often determined to be infertile.
Leopard geckos will breed typically in the summer. Females can store sperm over the course of their breeding season, so they can produce up to three clutches from one or two copulations, therefore, the male is not needed for reproductive success after the first or second copulation.[14] Once the female is pregnant, she will need an abundance of calcium for health and to ensure that the eggs calcify properly. She can lay about six to eight clutches, which consists of two eggs in each clutch. They will normally lay two eggs approximately 21 to 28 days after mating. After 45 to 60 days, droplets of moisture will appear on the shell and the shell will begin to shrink and partially collapse. These are indications that the eggs will hatch. Baby leopard geckos will have an "egg tooth", a calcareous tip at the end of its snout to help break their egg shell. Their "egg tooth" will fall off within one to two days. In addition to this, their skin will usually shed within 24 hours of hatching. The leopard gecko hatchling will not be able to eat until after the first shedding.[5]

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