Guadalupe Storm-petrel
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| Oceanodroma macrodactyla W. E. Bryant, 1887 |
The Guadalupe Storm-petrel (Oceanodroma macrodactyla) was a small seabird of the storm-petrel family Hydrobatidae.
It bred on Guadalupe Island, Mexico, where it was formerly abundant. The introduction of feral cats to the island decimated the population during the late 19th century; the last 2 specimens were collected between May 2 and May 5, 1911 (Townsend, 1923) and the last record of a breeding bird was in 1912[citation needed]. In 2000, its former breeding areas were finally surveyed at the correct time and it was concluded that the species was long extinct [1] - probably since some time in the 1910s -; the official classification (BirdLife International, 2006) has not been updated yet.
As opposed to the other storm-petrels found in the area, this species bred much earlier. Eggs were laid in burrows below the Guadalupe Island Monterey Pine (Pinus radiata var. binata)/Island Oak (Quercus tomentella) grove at the island's northern summit; incubation took place in late May/early June (Kaeding, 1905).
3 species of lice have been found to parasitize the Guadalupe Storm-petrel: the menoponids Longimenopon dominicanum and Austromenopon oceanodromae, and the ischnoceran Halipeurus raphanus (Mey 1990, [2]). The second also occurs on some other storm-petrels, and the third was also found on the Ashy Storm-petrel. The first of these species, on the other hand, has to date not been found on other birds and may be a case of coextinction.
[edit] References
- BirdLife International (2006). Oceanodroma macrodactyla. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Database entry includes justification for why this species is apparently extinct
- Kaeding, Henry B. (1905): Birds from the West Coast of Lower California and Adjacent Islands. Condor 7(4): 105-111. PDF fulltext
- Mey, Eberhard (1990): Eine neue ausgestorbene Vogel-Ischnozere von Neuseeland, Huiacola extinctus (Insecta, Phthiraptera). Zoologischer Anzeiger 224(1/2): 49-73. [German with English abstract] PDF fulltext
- Townsend, Charles Haskins (1923): Birds collected in Lower California. Bulletin of the American Museum of Natural History 48: 1-25. PDF fulltext
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