Population

Nomadic movements are typically not considered as migrations because the primary characteristic that differentiates them is intention. While migrations involve a deliberate decision to move permanently or for a significant amount of time, nomadic movements are characterized by the lack of a permanent intention to settle in one place. Nomadic groups move based on seasonal changes, availability of resources, or other factors, but they do not aim to establish a new permanent residence.
The correct characterization of nomadic movements is "without any intention," meaning they do not move with the goal of settling permanently in a new location. This distinguishes nomadic movements from traditional migrations, which are often motivated by economic, social, or physical reasons with the intent to establish a new home.

The concept in question pertains to population dynamics within a given habitat, particularly the movement of individuals of a species. Here are the definitions of the terms involved, which will aid in understanding the correct answer:

1. Emigration: The process in which individuals of a species move out from a specific habitat to another, decreasing the population of the original habitat.
2. Immigration: The arrival of new individuals of a species into a habitat from elsewhere, which increases the population of the receiving habitat. This is the correct term for describing new individuals entering a habitat.
3. Natality: The birth rate of a population, indicating new individuals born within the habitat itself, contributing to population increase.
4. Mortality: The death rate within the population, contributing to population decrease.

Thus, the number of individuals of the same species that have come into a habitat from elsewhere is referred to as Immigration.