RESPONSE OF PREDATORS TO VARYING DENSITIES OF GREGARIA LOCUST NYMPHS

被引：16

作者：

GILLETT, SD ^{[1
]}

HOGARTH, PJ ^{[1
]}

NOBLE, FEJ ^{[1
]}

机构：

[1] UNIV YORK, DEPT BIOL, HESLINGTON YO1 5DD, YORKSHIRE, ENGLAND

来源：

ANIMAL BEHAVIOUR | 1979年 / 27卷 / MAY期

关键词：

D O I：

10.1016/0003-3472(79)90195-7

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

The response to varying densities of prey was investigated by presenting predators (four human volunteers and a lizard, Lacerta lepida Daudin), in an arena, with from 5 to 120 fifth instar phase gregaria nymphs of the desert locust (Schistocerca gregaria Forskål). The activity of the nymphs was also varied by varying the feeding and temperature conditions. Above a certain prey density (which differed between predators) human catching efficiency declined, while the lizard became totally incapable of catching any locusts. Efficiency of all predators was reduced by increasing activity of the prey. © 1979.

引用

页码：592 / 596

页数：5

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