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 104
... Tropidorhynchus of the same island . For example , in the island of Bouru is found the Tropido- rhynchus bouruensis ... Tropidorhynchus has a large bare black patch round the eyes ; this is copied in the Mimeta by a patch of black ...
... Tropidorhynchus of the same island . For example , in the island of Bouru is found the Tropido- rhynchus bouruensis ... Tropidorhynchus has a large bare black patch round the eyes ; this is copied in the Mimeta by a patch of black ...
Page 105
... Tropidorhynchus subcornutus is of an earthy brown colour washed with yellow ochre , with bare orbits , dusky cheeks , and the usual pale re- curved nape - ruff . The Mimeta forsteni is absolutely identical in the tints of every part of ...
... Tropidorhynchus subcornutus is of an earthy brown colour washed with yellow ochre , with bare orbits , dusky cheeks , and the usual pale re- curved nape - ruff . The Mimeta forsteni is absolutely identical in the tints of every part of ...
Page 106
... Tropidorhynchus fuscicapillus , of a dark sooty brown colour , especially on the head , while the under parts are rather lighter , and the characteristic ruff of the nape is wanting . Now it is curious that in the adjacent island of ...
... Tropidorhynchus fuscicapillus , of a dark sooty brown colour , especially on the head , while the under parts are rather lighter , and the characteristic ruff of the nape is wanting . Now it is curious that in the adjacent island of ...
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