Created by :- Admin
Date :- 07-03-2024
In the vast expanse of the Indonesian archipelago, where azure waters meet lush green islands, lies a boundary that transcends the visible. This boundary, known as the Wallace Line, separates two worlds—two realms of biodiversity, evolution, and wonder. Let us embark on a journey to uncover the mysteries of this invisible line that runs between Bali and Lombok, shaping the fauna and flora of these enchanting islands.
Alfred Russel Wallace, a British naturalist born in 1823, was a contemporary of Charles Darwin. While Darwin’s name is synonymous with the theory of evolution, Wallace independently arrived at similar conclusions. In 1858, their joint publication introduced the world to the concept of natural selection.
Wallace’s fascination with biodiversity led him to explore the Malay Archipelago (now Indonesia and Malaysia). During his travels, he meticulously studied the distribution of animal species. His observations would forever alter our understanding of biogeography.
In 1859, Wallace drew an imaginary line—a boundary that separated the fauna of Asia from that of Australia. This line, now known as the Wallace Line, runs through Indonesia:
Although the distance between Bali and Lombok is a mere 35 kilometers, the Lombok Strait is so deep that it has remained filled with water for millions of years. This seemingly insignificant stretch of water marks a profound division in the natural world.
The Lombok Strait, with its 250-meter depth, serves as the most compelling explanation for the differences between Asian and Australian animals. It acted as a barrier, preventing species from migrating freely between the two sides.
Lombok lies east of the Wallace Line, in a region known as Wallacea. This area comprises islands that were not connected to either ice age continent. It hosts a unique mix of species capable of island-hopping.
The Wallace Line remains a testament to the power of geography in shaping life on Earth. It reveals the intricate dance of migration, isolation, and adaptation that has unfolded over millions of years.
Next time you gaze across the Lombok Strait, imagine the invisible bridge that connects and separates worlds—the Wallace Line, where science meets wonder.
Certainly! Let’s delve deeper into why birds and fish cannot cross the Wallace Line, that invisible boundary separating Bali and Lombok:
The Wallace Line: A Natural Barrier
The Deep and Wide Ocean Barrier
Behavioral Traits and Adaptation
Ecological Implications
In summary, the Wallace Line stands as a testament to the power of geography in shaping life on Earth. It reminds us that even invisible boundaries can profoundly impact the natural world, influencing the evolution and distribution of species across our planet.
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