VARIATION IN FORAGING INVESTMENT DURING THE INTERMOLT INTERVAL AND BEFORE EGG-LAYING IN THE SPIDER NEPHILA-CLAVIPES (ARANEAE, ARANEIDAE)

被引：41

作者：

HIGGINS, LE

机构：

[1] Department of Zoology, University of Texas at Austin, Austin, 78712, Texas

来源：

JOURNAL OF INSECT BEHAVIOR | 1990年 / 3卷 / 06期

关键词：

Araneidae; foraging; molt cycle; web structure;

D O I：

10.1007/BF01065965

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

Repeated observations were made of marked, freeliving females in three disjunct populations of the orb-weaving spider Nephila clavipes, recording orb size and structure and barrier web complexity. These longitudinal studies revealed regular patterns of variation in orb size associated with the molting cycle and cycle of egg maturation. Juveniles maintained in an insectary under a controlled feeding regime exhibited similar variation in orb size. All spiders ceased orb renewal prior to molting and the majority replaced the viscid orb with a nonviscid platform prior to molting. Differences among the populations in molting web structure are discussed in light of differences in the physical and biological environments. Cessation of orb renewal corresponded temporally with reported physiological changes associated with the molt cycle and possibly reflect changes in resource partitioning between growth and foraging during the molt cycle. © 1990 Plenum Publishing Corporation.

引用

页码：773 / 783

页数：11

共 24 条

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