John C. Simon
Brian P. Farm
Kim E. Berlin
James R. Kowalsky
Thane K. Pratt
2001
<p><span>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 (</span><i>Palmeria dolei</i><span>), an endangered nectarivore, and Maui Parrotbill (</span><i>Pseudonestor xanthophrys</i><span>), 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.</span></p>
application/pdf
10.1650/0010-5422(2001)103[0746:HRATOT]2.0.CO;2
en
Cooper Ornithological Society
Home range and territoriality of two Hawaiian honeycreepers, the 'Akohekohe and Maui Parrotbill
article