Point 1: The海洋边界的消失与生活的真实
V module: Look around Bali, and you’ll see across the vast Lombok Strait—a stretch of ocean between two Italianic islands. This narrow channel, measuring over 21 miles, separates Bali and Lombok. While at first, it seems these two islands are close enough for small creatures to cross, history has revealed that this ocean barrier has elongated. Over a century ago, Alfred Russel Wallace, a naturalist and one of the first biologists to document species in the Malay Archipelago, wrote about this "Wallace Line." Wallace’s meticulous research demonstrated that while Bali and Lombok share many similarities, their distinct Ecological Biogeographic Boundaries (EBGBs) have caused them to remain separate.
Point 2: The mystery of evolution across the boundary
The line’s historical significance lies in its role in shaping evolutionary processes. Since then, biologists have noticed vast gapping across different islands, suggesting a unique barrier influencing species. Wallace’s Line, in particular, has puzzled many. This’}
Point 3: Possibilities of cross-creshold evolution
Over 140 years ago, Wallace recorded many species distributions, revealing that separate groups of species are on the opposite sides of the boundary. This provided crucial insights into how species have moved, evolved, and speciated. The wall’s gapping has now appeared much more subtle, suggesting it’s a process that continues to shape ecosystems.
