The ecology of yellow‐crowned parakeets (<i>Cyanoramphus auriceps</i>) in<i>Nothofagus</i>forest in Fiordland, New Zealand

Elliott, Graeme; Dilks, Peter; O’Donnell, Colin F. J.

doi:10.1080/03014223.1996.9518084

Cited by 58 publications

(37 citation statements)

References 12 publications

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“…In mast years, house mouse (Mus musculus L.) populations reach high density. As generally described, this triggers a sequence of events of conservation significance: stoats (Mustela erminea L.) increase substantially (King 1983), and prey more on birds, including rare species whose populations do not recover before the next masting event (Elliott 1996;Elliott et al 1996;Wilson et al 1998;King 2002).…”

Section: Introductionmentioning

confidence: 99%

Breeding of house mice and the mast seeding of southern beeches in the Orongorongo Valley, New Zealand

Fitzgerald¹,

Efford

Karl

2004

New Zealand Journal of Zoology

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Mice (Mus musculus) in New Zealand's Nothofagus forests reach peak densities after mast seeding, but the role of beech mast and winter breeding in these fluctuations is uncertain. In the Orongorongo Valley, near Wellington, seedfall was measured and mice were trapped quarterly in mixed hard beech (N. truncata) and podocarp/hardwood forest (100-250 m a.s.l.) from 1971 to 1993, and in silver beech (N. menziesii) forest at higher altitude (580-786 m a.s.l.) from 1973 to 1978. Density (indexed by the percentage of traps catching mice, adjusted for linearity; ± SE) reached peaks of 6.2 ± 1.0-13.8 ± 1.6 after masting in 1971, 1979, 1986, and 1990, but also without mast in 1975, 1977, 1982, and 1983. Females bred in spring and summer. In the lower-altitude population, most breeding in mast years preceded autumn seedfall, and almost no mice bred in winter. The density index peaked in the following spring when the population comprised overwintered mice. Apparent recruitment between Z03031;

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Section: Introductionmentioning

confidence: 99%

Breeding of house mice and the mast seeding of southern beeches in the Orongorongo Valley, New Zealand

Fitzgerald¹,

Efford

Karl

2004

New Zealand Journal of Zoology

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“…These increases in the mouse populations are eruptions of resident populations, rather than irruptions (movement of mice to the site from elsewhere; see Caughley 1981). The impact of high numbers of stoats on rare species of birds after beech seedings has been described for the yellowhead (Mohoua ochrocephala) and yellow-crowned parakeet (Cyanoramphus auriceps) in Fiordland (Elliott 1996;Elliott et al 1996;O'Donnell & Phillipson 1996) and the kaka {Nestor meridionalis) in the Nelson Lakes district (Wilson et al 1998). Flocks of some species of birds move into forests when beech seed is available, and resident birds might breed more successfully then, providing more food for stoats (Murphy & Dowding 1995).…”

Section: Introductionmentioning

confidence: 99%

Responses of litter‐dwelling arthropods and house mice to beech seeding in the Orongorongo Valley, New Zealand

Alley

Berben

Dugdale

et al. 2001

Journal of the Royal Society of New Zealand

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||This study investigates further the possibility that eruptions of house mice in forests of southern beech (Nothofagus spp ) in New Zealand after mast seedings are triggered by increases in the populations of some arthropods, especially Lepidoptera larvae and spiders that are common foods of mice, rather than by the beech seed It reports on a 5-year study of arthropods of the forest floor in hard beech and silver beech forest in the Orongorongo Valley, near Wellington, in relation to (1) litter and seedfall, and (2) the numbers and diet of mice Litter-feeding larvae of Lepidoptera in both the litter and fermentation layers of the forest floor feed on the fallen male flowers of beech, and most species were more common after heavy flowering of the beeches A few of the common spiders (including Miturga sp , the main spider eaten by mice) were also more abundant after beech seeding Analysis of the long-term records of hard beech seeding, numbers of mice, and numbers of adults of the moth Gymnobathra tholodella (Oecophondae) showed that the number of mice was positively correlated with both the number of beech seeds and the number of moths These results indicate a more complex web of interactions in beech forest than was earlier suggested, but because the intensity of flowering in spring largely determines the numbers of both Lepidoptera larvae and beech seeds, the role of each in the population increase of mice can not be determined

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“…This may take the form of infrequent nesting, small clutches, large eggs and hatchlings or long periods of incubation, nestling and fledglingdependence (Niethammer 1970;Reid 1971;McLean & Miskelly 1988;Williams et al 1991;Powlesland et al 1992;Elliott et al 1996). Furthermore, gigantism, a trait allometrically related to low rates of reproduction (Livezey 1992), is particularly prevalent in the New Zealand avifauna (Trevelyan & Read 1989;Daugherty et al 1993).…”

Section: Introductionmentioning

confidence: 99%

Are low reproductive rates characteristic of New Zealand's native terrestrial birds? Evidence from the allometry of nesting parameters in altricial species

Franklin¹,

Wilson²

2003

New Zealand Journal of Zoology

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We investigate the notion that New Zealand's avifauna exhibits a macro-evolutionary trend towards low reproductive rates by analysing the allometry of nesting parameters for native altricial land birds. We show that egg size, incubation periods, and nestling periods are all strongly correlated with body mass, but clutch size is not. However, egg size more accurately predicts incubation periods, and incubation periods more accurately predict nestling periods, than does body mass.Variation between and within families is explored. Neither divergence per se nor slow rates of reproduction appear related to the taxic level of endemism. "Gigantic" species breed more slowly in proportion to body mass as predicted allometrically, but as a macro-evolutionary trend, the effect is counterpointed within New Zealand by a parallel trend towards dwarfism. We found that hollow-and cavity-nesting species have longer nestling periods than open-nesting species. Corvida passerines lay larger eggs, after controlling for body mass, than do Passerida passerines.Most of New Zealand's altricial bird species evolved from Australian colonists. Macroevolutionary trends are therefore most likely to be Z02026;

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The ecology of yellow‐crowned parakeets (Cyanoramphus auriceps) inNothofagusforest in Fiordland, New Zealand

Cited by 58 publications

References 12 publications

Breeding of house mice and the mast seeding of southern beeches in the Orongorongo Valley, New Zealand

Breeding of house mice and the mast seeding of southern beeches in the Orongorongo Valley, New Zealand

Responses of litter‐dwelling arthropods and house mice to beech seeding in the Orongorongo Valley, New Zealand

Are low reproductive rates characteristic of New Zealand's native terrestrial birds? Evidence from the allometry of nesting parameters in altricial species

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