A New Time-Sort Pitfall Trap

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The trap described in this paper was designed for shorttime separation of faunal collections. Scientists investigating the ambulatory invertebrate fauna have used pitfall traps whenever separation of the catch into definite time periods was desired (Williams 1958; Greenslade 1964; Merrett 1967; Duffey 1972). Pitfall traps were thought to be applicable in a study of the activity periods of surface prey species to a desert grassland spider, Agelenopsis aperta (Gertsch). Since we found it inconvenient to service a large number of traps at required 4-h intervals, we needed a trap which would provide continuous sampling with short-time intervals.

Document Type: Research Article

Publication date: November 15, 1973

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  • Annals of the Entomological Society of America is published in January, March, May, July, September, and November. Annals especially invites submission of manuscripts that integrate different areas of insect biology, and address issues that are likely to be of broad relevance to entomologists. Articles also report on basic aspects of the biology of arthropods, divided into categories by subject matter: systematics; ecology and population biology; arthropod biology; arthropods in relation to plant diseases; conservation biology and biodiversity; physiology, biochemistry, and toxicology; morphology, histology, and fine structure; genetics; and behavior.
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