Abstract
The rufous-banded honeyeater, Conopophila albogularis,
is probably the commonest small bird species in the suburbs of Darwin,
Northern Territory. Nearly twenty pairs of this species were colour-banded on
the Casuarina campus of the Northern Territory University, where they occupied
territories of 0.15–0.47 ha all year-round, indicating a density of up
to 12 birds ha-1. Six out of 48 birds survived 5 or more
years, one individual being 9 years old at the time of writing. Males were
larger in the four morphological dimensions measured. Breeding behaviour was
recorded in every month of the year, but was concentrated in the late dry and
wet seasons (September–March), commencing about two months before the
rains. Over half of 274 nests were built in black wattles,
Acacia auriculiformis, a common pioneer species both
within urban Darwin and monsoon rainforest ecotones of the Northern Territory.
Contrary to the literature, both sexes participated in building the nest, and
the incubation and nestling periods each lasted 14 days. The clutch size was
usually two (78%), and mean clutch size for 85 nests was 2.1 eggs. Nest
success was about 70%, hatching success of eggs was 74% and
fledging rate of nestlings 87%. Four broods per season were common, and
two pairs successfully raised five broods in one season. Average annual pair
productivity was 5.8 fledglings (possibly the highest yet recorded for an
Australian passerine species), one pair raising a remarkable 32 young over
five seasons (6.4 fledglings per season). The exceptionally high nest success
and productivity were probably mainly due to the scarcity of predators, and
the long breeding season, respectively, the latter being facilitated by
artificial watering of gardens and lawns during the dry season. The colonising
success of this species in Darwin is attributed to Darwin’s coastal
location and the close proximity of favoured natural habitats, as well as the
generalised diet of the species and its predilection for the abundant black
wattle.
Subject
Management, Monitoring, Policy and Law,Ecology, Evolution, Behavior and Systematics
Cited by
19 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献