THE STATUS OF GOULD PETREL, PTERODROMA-LEUCOPTERA-LEUCOPTERA, ON CABBAGE-TREE-ISLAND, NEW-SOUTH-WALES

被引：19

作者：

PRIDDEL, D ^{[1
]}

CARLILE, N ^{[1
]}

DAVEY, C ^{[1
]}

FULLAGAR, P ^{[1
]}

机构：

[1] CSIRO,DIV WILDLIFE & ECOL,LYNEHAM,ACT 2602,AUSTRALIA

来源：

WILDLIFE RESEARCH | 1995年 / 22卷 / 05期

关键词：

D O I：

10.1071/WR9950601

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Gould's petrel, Pterodroma leucoprera leucoptera, breeds only on Cabbage Tree Island, New South Wales. Annual surveys to estimate the size of the breeding population and the reproductive output were conducted between 1989 and 1992. Annual estimates of the total number of pairs breeding in the two gullies containing the main population were between 122 +/- 20 (s.e.) and 202 +/- 26. Breeding success was less than 20% between 1989 and 1991, but rose to 24.7% in 1992. This marginal improvement may be the result of management action undertaken to reduce mortality of breeding adults and fledglings. The total population is estimated to have declined from 2004 (95% confidence limits: 1464, 3185) in 1970 to 1479 (1250, 1815) in 1992, a decline of 26% in 22 years. The reasons for this decline are unclear.

引用

页码：601 / 610

页数：10