| Abstract: | Censuses of the known geographical range of the rare and endangered Palila were conducted in January (nonbreeding season) and September (breeding season) 1975. The habitat (mamane and naio forest of Mauna Kea, Hawaii) was divided into five major areas, with each analyzed for vegetational composition, phenology of the predominant tree species, and Palila density. Using a line transect census technique, we determined that: 1) the Palila occupied 5,560 ha, approximately 10% of its former range; 2) Palila populations were more restricted in the nonbreeding season, possibly reflecting their flocking tendency; 3) Palila densities were 38 birds per km2 i n the breedings easona nd 36 birdsp er km2 in the nonbreedinsge ason4;) Palila population movements were small, and apparently were correlated with patterns of food availability; and 5) all methods of analysis yielded a projected population of approximately 1,600 birds. These low numbers, coupled with its restricted range, make the Palila one of the most vulnerable endangered species. |
| Genre: | Article |
| ProdID: | 5221037 |
| Citation Author: | Van Riper, C.; Scott, J.M.; Woodside, D.M. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
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| Citation End Page: | 527 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Auk |
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| Citation Number Of Pages: | 10 |
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| Citation Phsyical Description: | 518-527 |
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| Citation Search Results Text: | Distribution and abundance patterns of the palila on Mauna Kea, Hawaii; 1978; Article; Journal; Auk; Van Riper, C.; Scott, J.M.; Woodside, D.M. |
| Citation Start Page: | 518 |
| Citation Volume: | 95 |
| Citation Year: | 1978 |
| Type: | citation/reference |
| Text: | Distribution and abundance patterns of the palila on Mauna Kea, Hawaii; 1978; Article; Journal; Auk; Van Riper, C.; Scott, J.M.; Woodside, D.M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DOCUMENT): | http://elibrary.unm.edu/sora/Auk/v095n03/p0518-p0527.pdf |
| Date Other: | Wed, 16 Jun 2010 12:18 -0500 |
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