Global warming not only causes changes in climate, but also disrupt sexual interactions in wildlife. One concern is the impact that disruption of the proliferation of living things because of the increase in temperature tends to give birth many males than females.
In most reptiles (reptiles), how sex is determined after the fertilized egg incubation temperature until hatching. If the temperature is above the average temperature, pivotal temperatures commonly called, is almost certainly going to grow into a stud. This will cause problems if the rate of temperature increase drove faster than the natural ability to adapt. The number of females will be much smaller than males.
The same threat faced by schools of fish. Recent research conducted Natalia Ospina-Alvarez and Fransesc Piferrer of the Marine Science Institute in Barcelona, Spain, found that six of the 20 genera of fish-a-real-real indication has determined the sex of the incubation temperature or the so-called TSD (temperature-dependent sex determination). Among other things, and the Apistogramma genus Menidia.
The results of their calculations indicate that the increase in water temperature of 4 degrees Celsius, which is predicted to occur during this century will produce male and female ratio of 3 to 1. The ratio is very risky to ensure the survival of fish.
In humans, the global temperature rise may not affect the sex ratio. However, the impact is still threatening their survival on Earth.
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