THE GEOGRAPHICAL DISTRIBUTION OF ANIMALS. |
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Page 21
When these various counteracting influences are taken into consideration, the
identity or close affinity of about 140 species and 40 genera on the two sides of
the Isthmus of Panama becomes very important; and, combined with the fact of
48 ...
When these various counteracting influences are taken into consideration, the
identity or close affinity of about 140 species and 40 genera on the two sides of
the Isthmus of Panama becomes very important; and, combined with the fact of
48 ...
Page 22
The forest again prevails from Panama to Maracaybo, and southwards in the
Magdalena valley; and on all the western side of the Andes to about 100 miles
south of Guayaquil. On the N.E. coast of Brazil is a tract of open country, in some
parts ...
The forest again prevails from Panama to Maracaybo, and southwards in the
Magdalena valley; and on all the western side of the Andes to about 100 miles
south of Guayaquil. On the N.E. coast of Brazil is a tract of open country, in some
parts ...
Page 23
All the marmosets (Hapalidae) are also confined to this sub-region, one only
being found at Panama, and perhaps extending a little beyond it. Among other
peculiar forms, are 8 genera of bats; 3 peculiar forms of wild dog; Pteronura, a
genus ...
All the marmosets (Hapalidae) are also confined to this sub-region, one only
being found at Panama, and perhaps extending a little beyond it. Among other
peculiar forms, are 8 genera of bats; 3 peculiar forms of wild dog; Pteronura, a
genus ...
Page 45
This migration was no doubt effected mainly, during successive glacial epochs,
when the mountain-range of the Isthmus of Panama, if moderately increased in
height, might become adapted for the passage of northern forms, while storms ...
This migration was no doubt effected mainly, during successive glacial epochs,
when the mountain-range of the Isthmus of Panama, if moderately increased in
height, might become adapted for the passage of northern forms, while storms ...
Page 52
... from Panama to Guatemala, and, with Myzomys, a genus of Muridae, are all at
present discovered. Bassaris, a remarkable form of Procyonidae, has been
included in the Nearctic region, but it extends to the high-lands of Guatemala.
... from Panama to Guatemala, and, with Myzomys, a genus of Muridae, are all at
present discovered. Bassaris, a remarkable form of Procyonidae, has been
included in the Nearctic region, but it extends to the high-lands of Guatemala.
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Common terms and phrases
abundant Africa allied Amazon animals Antilles appear Arctic Asia Australian region AUSTRALIAN SUB-REGIONS belong birds Bolivia Borneo Brazil California Canada Celebes Central Ceylon characteristic Chili China coast Columbia common confined consists Cosmopolite Costa Rica Cuba developed distinct DISTRIBUTION East Eastern Ecuador Ethiopian region ETHIOPIAN SUB-REGIONS Europe existing extending extinct fact FAMILY fishes forests forms fossil fresh-water genera genus Guatemala Guiana Guinea Himalayas important India indicated inhabits Islands Japan Java known land latter less living Madagascar Marine Mexico Miocene Mountains Nearctic region NEARCTIC SUB-REGIONS Neotropical region NEOTROPICAL SUB-REGIONS North northern occur Ocean Order Oriental region ORIENTAL SUB-REGIONS Pacific Palaearctic region PALAEARCTIC SUB-REGIONS Panama Paraguay perhaps period Peru Philippines Plata Plate possesses probably range recent remarkable represented rivers seas single South America Southern species Sub-family Temperate Tropical Tropical America types United Upper West West Africa Western whole widely World Zealand
Popular passages
Page 159 - regions, not only now but as far back as we can clearly trace them in the past; and, secondly, of the existing radical diversity of the Australian region from the rest of the Eastern Hemisphere. Owing to the much greater extent of the old
Page 61 - to the great Central American isthmus; yet instead of exhibiting an intermixture of the productions of Florida and Venezuela, they differ widely from both these countries, possessing in some groups a degree of speciality only to be found elsewhere in islands far removed from any continent. They consist of two very large islands, Cuba and
Page 552 - catalogued on a uniform plan, and with a uniform nomenclature, a thoroughly satisfactory account of the Geographical Distribution of Animals will not be possible. But more than this is wanted. Many of the most curious relations between animal forms and their habitats, are entirely unnoticed, owing to the productions of the same locality
Page 553 - harmony of nature, and to a fuller comprehension of the complex relations and mutual interdependence, which link together every animal and vegetable form, with the ever-changing earth which supports them, into one grand organic whole.
Page 9 - the South American continent, its long isolation from the rest of the land surface of the globe, and the persistence through countless ages of all the conditions requisite for the development and increase of varied forms of animal life.
Page 81 - probably formed part of Central America, and may have been united with Yucatan and Honduras in one extensive tropical land. But their separation from the continent ; took place at a remote period, and they have since been broken up into numerous islands, which have probably undergone much submergence in recent times. This has led to that poverty of the higher forms of life, combined
Page 5 - combined with isolation is the predominant feature of Neotropical zoology, and no other region can approach it in the number of its peculiar family and generic types.
Page 342 - islands and sand-banks, and can evidently pass over a few miles of sea with ease; but the Nicobar bird is a very different case, because none of the numerous intervening islands offer a single example of the family. Instead of being a well-marked
Bibliographic information
| Title | THE GEOGRAPHICAL DISTRIBUTION OF ANIMALS. |
| Author | ALFRED RUSSEL WALLACE |
| Published | 1876 |
| Original from | the University of Michigan |
| Digitized | 17 veeb. 2006 |
| Export Citation | BiBTeX EndNote RefMan |