I'm drafting a world for my first fantasy series and I am using human beings as the main species.
Would there be any issue with people being trapped on a planet for a long period of time without modern technology (say 700-1000 years), which is only 29% water-covered and 71% land-covered?
EDITED TO PROVIDE MORE INFO:
People crashed/arrived within 100km of main body of water. They have some resources, tents, first aid kits, small food stocks, but nothing you`d expect outside of a school or residential building. Starting population is 5,000,000 (which should be sufficient to avoid in-breeding).
The temperature was between 10 and 40 Celsius in the area they arrived for at least 1 year. Planet is 70% the volume of earth and 80% the mass (core has less silicon and more lead). The majority of the planet is more desert like than earth, but it does have a small jungle and other flora heavy regions. As far as food, there is a moderate amount of fruits and edible plants, but virtually no large fauna - mostly edible rodents.
If there was an issue, would it merely life difficult, or would it make their extinction likely?
Thanks in advance. SGCG