If they can inter-breed then they are considered in the same population. In my mind, a population is the same as a species. So, in answer to you question, each one has their own population. I don't know much about some of them, but I am pretty sure that none of them can inter-breed.
Saguaro cacti
elf owls
horned lizards
fire ants
All separate populations. Together they make up the community of the area of the desert.
desert
some lizards dig than hide in the sand
desert lizards are reptile which live in the desert.they have different characteristic. some time they are horned,spiny or even like snakes.
in the desert
They don't they live in many different places around the world.Because there are lizards that get their energy from the sun, and that makes the desert the perfect place to live.
There are saguaro cacti that live in the desert but there is no Saguaro Desert.
No, the saguaro is a cactus that lives in a desert.
There is no desert named the Saguaro Desert. However the saguaro cactus lives primarily in the Sonoran Desert.
There is no such place as the "Saguaro Desert." The saguaro is a large species of cactus that grows in the Sonoran Desert.
There is no such place as the Saguaro Desert. Did you mean the Sonoran Desert or the Sahara?
The saguaro is a cactus of the Sonoran Desert primarily.
The saguaro lives in the Sonoran Desert of Arizona and Mexico.
The saguaro is primarily a cactus of the Sonoran Desert in Arizona and Mexico.
population density
Population density
The saguaro also grows in a small area of the Mojave Desert.
In the Sonoran Desert, one can find the agave, palm, desert marigold, summer poppy, and cactus are some plants or trees. A famous type of cactus native to this desert is the Saguaro cactus.