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How can many anole species live on the same Caribbean island?
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lizard
Black girdle-tailed lizard (Cordylus nigra).
Many anole species can coexist on a single Caribbean island through a process known as niche partitioning. Because competition for resources is intense, each species evolves to occupy a precise, specialized niche to minimize overlap with others.1
To accommodate multiple species in a restricted area, anoles differentiate themselves along several key axes:
- Microhabitat: Species occupy distinct structural zones, such as tree crowns, trunks, or grass.1
- Climatic Preferences: They utilize different environments, ranging from areas of open sun to filtered light or deep shade.1
- Dietary Specialization: Species vary in size and feed on different sizes of prey.1
By occupying these unique, characteristic microhabitats, these lizards avoid direct competition, allowing large numbers of closely related species to thrive within the same geographic area.1