Island Life; Or, The Phenomena and Causes of Insular Faunas and Floras

Name: Island Life; Or, The Phenomena and Causes of Insular Faunas and Floras
Author: Alfred Russel Wallace

By Alfred Russel Wallace

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About This Book

The work examines the distribution, origins, and peculiarities of island animals and plants, surveying patterns of endemism and species dispersal across oceanic and continental islands. It analyzes dispersal mechanisms such as rafting, wind and bird-borne transport, and past land connections, and assesses geological and climatic influences including glacial epochs and sea-level change. Regional case studies compare insular faunas and floras, trace migration histories, and list characteristic taxa while weighing competing explanations for similarity and isolation. The author proposes general principles about former range extensions, the persistence of major land–water features, and the role of climatic shifts in producing distinctive island biotas.

About the Author

Alfred Russel Wallace

Alfred Russel Wallace (1823-1913) was a British naturalist, explorer, and biologist, best known for independently formulating the theory of evolution through natural selection, a concept he presented alongside Charles Darwin. His extensive travels in the Amazon and the Malay Archipelago provided him with rich insights into biodiversity and biogeography, which he documented in works such as "A Narrative of Travels on the Amazon and Rio Negro." Wallace also contributed to various fields, including entomology and anthropology, and was an advocate for spiritualism later in life, as reflected in his book "A Defence of Modern Spiritualism." His legacy endures in the realms of science and literature, marking him as a pivotal figure in the history of evolutionary thought.