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Artificial nest predation rates vary among habitats in the Australian monsoon tropics

Citation

Noske, RA and Fischer, S and Brook, BW, Artificial nest predation rates vary among habitats in the Australian monsoon tropics, Ecological Research, 23, (3) pp. 519-527. ISSN 0912-3814 (2008) [Refereed Article]

Copyright Statement

Copyright 2007 The Ecological Society of Japan

DOI: doi:10.1007/s11284-007-0403-y

Abstract

Rates of nest predation have frequently been shown to differ between fragmented and unfragmented habitats, but have rarely been compared among natural habitats in the same geographic region. In this study, artificial nests of two types (open cup and domed) were placed in four habitats (mangroves, monsoon rainforests, eucalypt woodlands and paperbark swamps) over 12 months in three localities near Darwin in the Australian monsoon tropics to determine the effects of habitat, season and nest type on the rate of nest predation. A quail egg and a similarly coloured plasticine egg were placed in each nest. Habitat had a strong effect on nest predation rates, with nests in mangroves experiencing predation rates more than four times higher than those in eucalypt woodlands and paperbark swamps. Despite the strong rainfall seasonality of the region, there was no consistent seasonal variation in nest predation rates. Nest type also had little influence on predation rates, except in paperbark swamps where open cup nests suffered a higher predation rate than domed nests. The study indicates that generalised nest predation rates for tropical regions, even for small areas (e.g. <17 km radius), might overlook substantial variation between habitats. Such variation confounds purported differences in nest predation rates between tropical and temperate regions.

Item Details

Item Type:Refereed Article
Keywords:mangroves, seasonality, tropical savannas, domed nests, model selection
Research Division:Environmental Sciences
Research Group:Environmental Science and Management
Research Field:Environmental Monitoring
Objective Division:Environment
Objective Group:Ecosystem Assessment and Management
Objective Field:Ecosystem Assessment and Management not elsewhere classified
Author:Brook, BW (Professor Barry Brook)
ID Code:116277
Year Published:2008
Web of Science® Times Cited:8
Deposited By:Biological Sciences
Deposited On:2017-05-04
Last Modified:2017-09-27
Downloads:0

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