Effects of Temefos, an organophosphorous insecticide, on survival and escape behaviour of the marsh fiddler crab Uca pugnax

Temefos (= Abate R = o, o, o′, o′-thiodi-p-phenylene phosphorothioate), added to the medium at a concentration of 9.12 ppm killed 50% of Uca pugnax S. I. Smith tested in the laboratory after 24 hours. However, a concentration of only 4.31 ppm either killed or eliminated the escape response of 50% of...

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Bibliographic Details
Published in:Oikos Vol. 27; no. 2; pp. 331 - 335
Main Authors: Ward, D.V, Busch, D.A. (Rutgers Univ., New Brunswick, N.J. (USA). Dept. of Entomology and Economic Zoology)
Format: Journal Article
Language:English
Published: Munksgaard International Booksellers and Publishers 1976
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Summary:Temefos (= Abate R = o, o, o′, o′-thiodi-p-phenylene phosphorothioate), added to the medium at a concentration of 9.12 ppm killed 50% of Uca pugnax S. I. Smith tested in the laboratory after 24 hours. However, a concentration of only 4.31 ppm either killed or eliminated the escape response of 50% of Uca pugnax tested. The latter data represent the effective mortality since escape behavior determines the survival of this species. Comparisons of effective concentrations to lethal concentrations are presented as a general quantitative measure of sublethal sensitivity to a toxicant. /// Тимифос /тетраметилтиодифениленфосфотиат/, добавленный к среде в концентрации 9,12 ч/млн убивал 50% Uca pugnax S. I. Smith, исследованных в лаборатории через 24 часа. Однако, концентрация 4,31 ч/млн либо убнвает либо исключает спасательную реакцию у 50% исследованных Uca pugnax. Последняя цифра показывает эффективную смертность, т.к. выживаемость данного вида определяется поведенческими реакциями. Представлены сравнения эффективных и летальных концентраций как обшее количественное определение сублетальной чувствительности токсиканта.
Bibliography:M40
7620935
L72
ISSN:0030-1299
1600-0706
DOI:10.2307/3543915