Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- proper noun A taxonomic
genus within thefamily Thraupidae .
Etymologies
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Examples
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Darwin's Large Ground-finch, Geospiza magnirostris magnirostris - possibly extinct (1957?)
On Thursday, the Legg report will be published along with... 2009
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Later studies, by Henry Lack in the 1930s and by Peter and Rosemary Grant and colleagues in the 1970s, zeroed in on a particular group of ordinary-looking birds of the genus Geospiza, known as Darwin's finches.
Todd Palmer and Rob Pringle: Where Animals Don't Run Away 2009
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Vampire Finch, Geospiza difficilis septentrionalis
On Thursday, the Legg report will be published along with... 2009
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The creatures of the Galapagos are under intense scrutiny, which is presumably why Geospiza fortis was caught in the act of evolving.
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Four species of ground finch, from the genus Geospiza, coexist on the island of Santa Cruz.
The Song of The Dodo David Quammen 2004
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Four species of ground finch, from the genus Geospiza, coexist on the island of Santa Cruz.
The Song of The Dodo David Quammen 2004
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The most curious fact is the perfect gradation in the size of the beaks in the different species of Geospiza, from one as large as that of a hawfinch to that of a chaffinch, and (if Mr. Gould is right in including his sub-group, Certhidea, in the main group) even to that of a warbler.
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The largest beak in the genus Geospiza is shown above in Fig. 1, and the smallest in Fig. 3; but instead of there being only one intermediate species, with a beak of the size shown in Fig. 2, there are no less than six species with insensibly graduated beaks.
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If the different islands have their representatives of Geospiza, it may help to explain the singularly large number of the species of this sub-group in this one small archipelago, and as a probable consequence of their numbers, the perfectly graduated series in the size of their beaks.
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Unfortunately most of the specimens of the finch tribe were mingled together; but I have strong reasons to suspect that some of the species of the sub-group Geospiza are confined to separate islands.
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