首页   按字顺浏览 期刊浏览 卷期浏览 Changes in a forest bird community during a period of fire and drought near Bega, New S...
Changes in a forest bird community during a period of fire and drought near Bega, New South Wales

 

作者: PETER SMITH,  

 

期刊: Australian Journal of Ecology  (WILEY Available online 1989)
卷期: Volume 14, issue 1  

页码: 41-54

 

ISSN:0307-692X

 

年代: 1989

 

DOI:10.1111/j.1442-9993.1989.tb01007.x

 

出版商: Blackwell Publishing Ltd

 

数据来源: WILEY

 

摘要:

AbstractThe bird community of a forested 13 ha plot was studied for 3 years, during which the plot was burnt by wildfire and was severely drought‐affected. The combined effects of fire and drought were surprisingly limited. Similar numbers of species were recorded in each year and differences in species composition involved only rare visitors to the plot. Colour‐banding indicated population declines in at least six resident species. The greatest decline was that of the Brown Thornbill (Acanthiza pusilla), from 20 pairs to 10 pairs. In general, insectivorous birds were most abundant and widespread on the plot during the first year, before the fire. In contrast, nomadic birds feeding on flowers or fruits were most abundant in the second year, when there was a prolific flowering and fruiting of several important food plants. After the fire, at least ten bird species avoided the burnt ridges and became more concentrated in the unburnt gullies. Most were species associated with dense shrub thickets, the layer of vegetation most affected by the fire. It seems that gullies are major refuge areas in these forests and are the key to the resilience of the bird community to fire and drou

 

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