Contributions to the Theory of Natural Selection: A Series of EssaysAMS Press, 1973 - 384 pages Wallace noticed on expeditions to the Amazon and the Malay archipelego that mammals in Southeast Asia are more advanced than their Australian cousins. His suggestion was that the two continents had split before the better adapted mammals had evolved in Asia. The isolated Australian marsupials were able to thrive, whilst those in Asia were driven to extinction by competition from more advanced mammals. This led to his theory of natural selection, which he presented to the Linnean Society in 1858 with Charles Darwin. This volume reprints those papers presented to the Linnean Society. |
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Page 87
... diphilus , black swallow - tailed butterflies with cream - coloured spots , are so well imi- tated by varieties of P. theseus , that several writers have classed them as the same species . Papilio liris , found only in the island of ...
... diphilus , black swallow - tailed butterflies with cream - coloured spots , are so well imi- tated by varieties of P. theseus , that several writers have classed them as the same species . Papilio liris , found only in the island of ...
Page 170
... Diphilus , inhabiting India and the Indian region , are tailed , while the two which take their place in the Moluccas , New Guinea , and Australia , P. Polydorus and P. Leodamas , are destitute of tail , the species furthest east having ...
... Diphilus , inhabiting India and the Indian region , are tailed , while the two which take their place in the Moluccas , New Guinea , and Australia , P. Polydorus and P. Leodamas , are destitute of tail , the species furthest east having ...
Page 180
... Diphilus ... ... Sumatra , Java . 12. P. Memnon , var . ... ... Sumatra . 13. P. Androgeus , var . ... Northern India . male ) ... ... ... P. Liris ... ... Timor . ... ( Achates , female ) P. Coon ... ( Achates , female ) P. Doubledayi ...
... Diphilus ... ... Sumatra , Java . 12. P. Memnon , var . ... ... Sumatra . 13. P. Androgeus , var . ... Northern India . male ) ... ... ... P. Liris ... ... Timor . ... ( Achates , female ) P. Coon ... ( Achates , female ) P. Doubledayi ...
Contents
Geographical distribution dependent on Geologic Changes A | 1 |
On the Tendency of Varieties to depart indefinitely from | 26 |
Useful Variations will tend to Increase useless or hurtful Variations | 41 |
Copyright | |
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Contributions to the Theory of Natural Selection: A Series of Essays ... Alfred Russel Wallace No preview available - 2018 |
Contributions to the Theory of Natural Selection: A Series of Essays Alfred Russel Wallace No preview available - 2016 |
Common terms and phrases
abundant adapted affinity alike Amboyna anal valves animals antennæ appear Bates beautiful become bees beetles birds Borneo brilliant build butterflies caterpillars causes Celebes changes characters closely allied species common concealed curious Danaidæ Darwin Diphilus eggs equally exactly example existence extinct facts faculties favourable female birds flowers genera genus geological groups Guinea habits Heliconidæ imitation India individuals inhabiting insects instinct islands Java larvæ Lepidoptera less Longicorn Malayan male Mimeta mimic mimicry mode modifications Moluccas moths natural selection nectary nest never nidification number of species observations occur organic Origin of Species Ormenus Pammon Papilio Papilio Ulysses Papilionidæ peculiar phenomena plumage Polydorus possess present probably produced protection race regions remarkable render resemble savage sexes sexual sexual selection shown similar spots structure Sumatra tail theory of natural Theseus tints tion trees tropical Tropidorhynchus variation varied varieties whole wings yellow