Litterfall under hinau,Elaeocarpus dentatus, in lowland podocarp/ mixed hardwood forest, and the impact of brushtail possums,Trichosurus vulpecula
- 1 October 1991
- journal article
- research article
- Published by Taylor & Francis in New Zealand Journal of Botany
- Vol. 29 (4), 385-394
- https://doi.org/10.1080/0028825x.1991.10415491
Abstract
Litterfall was collected monthly for five years under the endemic hardwood tree Elaeocarpus dentatus (hinau) on two study areas about 3 km apart in podocarp/mixed hardwood forest of the Orongorongo Valley, near Wellington, New Zealand. At high stem densities (42 stems > 8 cm dbh ha-1) total annual hinau litterfall was 504 g m-2, with litter from other associated species contributing a further 119 g m-2. At low stem densities (4 stems > 8 cm dbh ha-1) the values were 293.4 and 163 g m-2, respectively. Except for twigs, the amounts of the various components of litterfall showed marked seasonal and annual variations, and consistent differences between individual trees. At both sites, litter fell throughout the year, with most flowers falling in spring, leaves in summer, and fruits in autumn. The annual cycle of monthly dry weight of leaf-fall, the major component of the litterfall, was highly correlated with the annual cycle of mean monthly temperature, but not with that of rainfall or windrun. Eradication of introduced herbivorous brushtail possums, Trichosurus vulpecula, from one of the study areas was followed by a marked increase the following year in the amounts of hinau flowers and fruits in the litterfall.Keywords
This publication has 21 references indexed in Scilit:
- Litterfall in an Australian population of Mimosa pigra, an invasive tropical shrubJournal of Tropical Ecology, 1988
- Litterfall and productivity in a tropical rain forest, Southern Baakundu Forest Reserve, CameroonJournal of Tropical Ecology, 1988
- Individual Variation in the Phenology of Oak Trees and Its Consequences for Herbivorous InsectsFunctional Ecology, 1988
- Name changes in the indigenous New Zealand flora, 1960–1986 and Nomina Nova IV, 1983–1986New Zealand Journal of Botany, 1987
- Reduction of oak fecundity by low-density herbivore populationsNature, 1985
- Litterfall and the Standing Crop of Litter in Three Tropical Australian RainforestsJournal of Ecology, 1984
- Limitation of the Recruitment of the Shrub Haplopappus Squarrosus (Asteraceae) by Flower- and Seed-Feeding InsectsJournal of Ecology, 1982
- Diet of the opossumTrichosuvus vulpecula(Kerr) in the Orongorongo Valley, Wellington, New Zealand, in relation to food‐plant availabilityNew Zealand Journal of Zoology, 1976
- Effects of opossum browsing on northern rata trees in the Orongorongo Valley, Wellington, New ZealandNew Zealand Journal of Zoology, 1976
- Litter Production in Forests of the WorldPublished by Elsevier ,1964