TEMPERATURE REGULATION IN THE NOCTURNAL MELOLONTHINE SPARRMANNIA-FLAVA

被引：7

作者：

CHOWN, SL

SCHOLTZ, CH

机构：

[1] Department of Entomology, University of Pretoria, Pretoria

来源：

JOURNAL OF THERMAL BIOLOGY | 1993年 / 18卷 / 01期

关键词：

THERMOREGULATION; WINGSTROKE FREQUENCY; MORPHOLOGY; COLEOPTERA; SPARRMANNIA-FLAVA;

D O I：

10.1016/0306-4565(93)90038-U

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

1. Sparrmannia flava Arrow (Coleoptera: Scarabaeidae) regulated thoracic temperature (Th) during flight at 38.6-degrees-C over an ambient temperature (T(a)) range of 11-degrees-C. 2. T(th) and wing loading (19.99 N m-2) were within the range predicted by body mass (0.80 g) based on previous studies of scaling in beetles, although conductance (0.0087 W-degrees-C-1) was considerably lower and wingstroke frequency (87 Hz) higher than that previously recorded in beetles of similar mass. 3. The slope of the regression of abdominal temperature (T(ab)) on T(a), at T(a)s > 20-degrees-C, was > 1, and physiological heat transfer was demonstrated experimentally, suggesting that low conductance necessitates active heat transfer at high T(a)s. 4. Sparrmannia flava's early-morning, anti-predator strategy involves adaptations which make it an exception to previous generalizations concerning the thermal biology of beetles.

引用

页码：25 / 33

页数：9

共 46 条

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Bartholomew G.A., 1981, P45

[2]

Bartholomew G.A., 1987, P11

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