A CHANGE IN THE BREEDING-SEASON OF RUPPELL GRIFFON VULTURES GYPS-RUEPPELLII IN THE SERENGETI IN RESPONSE TO CHANGES IN UNGULATE POPULATIONS

被引：8

作者：

HOUSTON, DC

机构：

[1] Department of Zoology, University of Glasgow, Glasgow

来源：

IBIS | 1990年 / 132卷 / 01期

关键词：

D O I：

10.1111/j.1474-919X.1990.tb01014.x

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Breeding by Rüppell's Griffon Vultures Gyps rueppellii is synchronized but the time of breeding of colonies in the Serengeti region of Tanzania has changed by 5 months over the period between 1969–1970 and 1985. During this interval there have been considerable changes in the ungulate populations within the feeding range of the vultures, resulting in an increase to the food supply available to the birds. It is suggested that this species may have two alternative breeding seasons, the selective value of each depending on the magnitude of the food supply. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：36 / 41

页数：6