Why do exotic species sometimes take over an ecosystem

Exotic species are those organisms which are not native to the specific area. When exotic species are introduced into a new ecosystem, the exotic species can grow at exponential rate because they often don't face the same factors that were inhibiting the growth in the original ecosystem. That’s why exotic species sometimes take over an ecosystem.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

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