Home range and territoriality of two Hawaiian honeycreepers, the 'Akohekohe and Maui Parrotbill
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Abstract
Hawaiian honeycreepers have radiated into a diversity of trophic niches and patterns of space-use. We investigated space-use in two honeycreeper species, the ‘Ākohekohe (Palmeria dolei), an endangered nectarivore, and Maui Parrotbill (Pseudonestor xanthophrys), an endangered wood excavator, by mapping the home ranges and dispersion of color-banded individuals at a study site in relatively undisturbed montane cloud forest on Maui Island, Hawai‘i. With 20% of outlying points excluded, home-range size averaged much smaller for adult male ‘Ākohekohe (0.56 ha) than for male Maui Parrotbill (2.26 ha). In both species, a female's home range mostly overlapped that of her mate. Adult male Maui Parrotbill defended year-round home ranges from which they excluded conspecifics except for their mates and dependent offspring. Although our data suggest that ‘Ākohekohe also maintained all-purpose territories, the evidence is less convincing because these birds were seen feeding in the home ranges of other individuals. By defending all-purpose territories, these two species depart from the more common honeycreeper pattern of sharing large, undefended home ranges.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Home range and territoriality of two Hawaiian honeycreepers, the 'Akohekohe and Maui Parrotbill |
| Series title | Condor |
| DOI | 10.1650/0010-5422(2001)103[0746:HRATOT]2.0.CO;2 |
| Volume | 103 |
| Issue | 4 |
| Year Published | 2001 |
| Language | English |
| Publisher | Cooper Ornithological Society |
| Description | 10 p. |
| First page | 746 |
| Last page | 755 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |