Population structure and survival of Palila

Author:

Banko, Paul C., Fancy, Steven G, Jacobi, James D., Lindsey, Gerald D., Pratt, Thane K., Reynolds, Michelle H., Wilson, Karen A.

Title:

Population structure and survival of Palila

Periodical:

Condor

Year:

1995

Volume:

97

Pages:

528-535

Subject:

Bird populations Birds monitoring Conservation Endangered species birds Loxioides bailleui Palila Survival

Summary:

The Palila (Loxioides bailleui), is an endangered, seed-eating Hawaiian honeycreeper from the Fringillidae family, and the Drepanidinae subfamily -- a subfamily that apparently evolved from a single founding species of the cardueline finch. This forest bird, that successfully colonized the Hawaiian Islands, is dependent upon the mamane ecosystem for its existence, nests almost exclusively in mamane trees, and feeds principally on unripe mamane seeds. It is confined to the mamane (Sophora chrysophylla) and mixed mamane and naio (Myoporun sandwicense) forests that are located above the 1,950 meter elevation of Mauna Kea, on the island of Hawaii, and occupies less than 5 percent of its historic range. While the mamane forest also exists outside its current range, strong site tenacity, disease, or predation may be preventing the Palila from recolonizing these areas. However, even though the Palila has been well-studied, as compared to other Hawaiian forest birds, little is known about its demography. Therefore, in 1987 a study was started on the demography of the Palila. This document reports on the age and sex structure, as well as the annual survival rate of the only remaining Palila population.

Label:

Birds - Palila

URL:

https://sora.unm.edu/node/105012

Date:

1995

Collection:

Periodicals