Anopheline mosquitos are native to the Lower Columbia River and
Willamette Basins and it was an outbreak of malaria fanning out from the
Hudson's Bay Company post at Ft. Vancouver beginning in 1830 that kill a
conservatively estimated 90% of the Native American populations of these
regions between 1830 and 1834.

Gene Hunn.

On Sun, 17 Dec 1995, Dennis Paulson wrote:

> >It would seem to me that the only way such an abundant species could
> >have been eliminated was through avian disease, such as avian malaria,
> >etc. This disease may have been introduced from introduction of foreign
> >birds, such as domestic pigeons, or by importation of alternate hosts,
> >such as rats, cats, dogs, and their accompanying vector vermin, such as
> >lice, fleas, etc. In Hawaii, most of the remaining indigenous birds are
> >apparently at relatively high altitudes where the avian malaria isn't present.
> >
> >Tom Weir
>
> One question. Is avian malaria a disease that occurs widely in the
> temperate zone? I thought it was the lower temperatures of the Hawaiian
> highlands that precluded occurrence of the mosquitos that transmitted it.
>
> Dennis Paulson, Director phone: (206) 756-3798
> Slater Museum of Natural History fax: (206) 756-3352
> University of Puget Sound e-mail: dpaulson at ups.edu
> Tacoma, WA 98416
>
>
>