Circumtropical

Circumtropical refers to a distribution pattern of species or phenomena that occurs in tropical regions around the world. This means that a circumtropical organism or event can be found in the tropics of both the Eastern and Western Hemispheres, and often across different continents.

Examples of circumtropical distributions can be seen in various organisms. Many marine species, such as certain corals and fish, exhibit circumtropical ranges. This is often facilitated by ocean currents that can transport larvae across vast distances. Similarly, some plant species have circumtropical distributions, often adapted to similar warm and humid conditions found across these regions.

The concept of circumtropical distribution is important in biogeography, the study of the distribution of species and ecosystems in geographic space and through geological time. Understanding why certain species have such wide-ranging distributions helps scientists infer historical climate patterns, geological events, and the dispersal capabilities of organisms. Factors like continental drift, past climate changes, and the presence of suitable habitats play a role in shaping these broad geographical patterns.