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Home range and territoriality of two Hawaiian honeycreepers, the 'Akohekohe and Maui Parrotbill

Condor

By:
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DOI: 10.1650/0010-5422(2001)103[0746:HRATOT]2.0.CO;2

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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.

Additional Publication Details

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