Field thermal ecology and water relations of gregaria phase African armyworm caterpillars, Spodoptera exempta (Lepidoptera:Noctuidae)

被引：9

作者：

Klok, CJ ^{[1
]}

Chown, SL ^{[1
]}

机构：

[1] Univ Pretoria, Dept Zool & Entomol, ZA-0002 Pretoria, South Africa

来源：

JOURNAL OF THERMAL BIOLOGY | 1998年 / 23卷 / 02期

关键词：

phase polymorphism; development time; thermoconformer; desiccation resistance; critical thermal limits;

D O I：

10.1016/S0306-4565(97)00068-5

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Thermal biology, water relations and behaviour of gregaria phase Spodoptera exempta caterpillars were examined in the field. Regression analysis indicated that these caterpillars are thermoconformers (T-b=0.218 + 1.14 T-a). Caterpillars tended to congregate at > 10 cm above the soil surface because of food availability. No evidence of behavioural thermoregulation was found. Field-collected caterpillars had a CTmin of 11.8 +/- 0.13 degrees C(mean +/- S.E.) and a CTmax of 55.9 +/- 0.45 degrees C. Caterpillars maintained reasonably constant body water contents and haemolymph osmolality (c. 330 mOsml.kg(-1)) despite fluctuations in microclimate. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：131 / 142

页数：12

共 41 条

[11] THE IMPORTANCE OF SEASONAL-VARIATION IN HAIR COLORATION FOR THERMOREGULATION OF CTENUCHA-VIRGINICA LARVAE (LEPIDOPTERA, ARCTIIDAE) [J].

FIELDS, PG ;

MCNEIL, JN .

PHYSIOLOGICAL ENTOMOLOGY, 1988, 13 (02) :165-175

[12]

Fitzgerald Terrence D., 1993, P372

[13] Behavioural thermoregulation in the mopane worm (lepidoptera) [J].

Frears, SL ;

Chown, SL ;

Webb, PI .

JOURNAL OF THERMAL BIOLOGY, 1997, 22 (4-5) :325-330

[14] Insects and temperature - A general theory [J].

Gilbert, N ;

Raworth, DA .

CANADIAN ENTOMOLOGIST, 1996, 128 (01) :1-13

[15] DETERMINATION OF LARVAL MELANIZATION IN THE MOTH, MAMESTRA-BRASSICAE, AND THE ROLE OF MELANIN IN THERMOREGULATION [J].

GOULSON, D .

HEREDITY, 1994, 73 :471-479

[16] THE INFLUENCE OF LARVAL PHASE ON METABOLIC RESERVES, FECUNDITY AND LIFESPAN OF THE AFRICAN ARMYWORM MOTH, SPODOPTERA-EXEMPTA (WALKER) (LEPIDOPTERA, NOCTUIDAE) [J].

GUNN, A ;

GATEHOUSE, AG .

BULLETIN OF ENTOMOLOGICAL RESEARCH, 1987, 77 (04) :651-660

[17] THE DEVELOPMENT OF ENZYMES INVOLVED IN FLIGHT-MUSCLE METABOLISM IN SPODOPTERA-EXEMPTA AND MYTHIMNA-SEPARATA [J].

GUNN, A ;

GATEHOUSE, AG .

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY, 1988, 91 (02) :315-324

[18] TRADE-OFF BETWEEN FLIGHT AND REPRODUCTION IN THE AFRICAN ARMYWORM MOTH, SPODOPTERA-EXEMPTA [J].

GUNN, A ;

GATEHOUSE, AG ;

WOODROW, KP .

PHYSIOLOGICAL ENTOMOLOGY, 1989, 14 (04) :419-427

[19]

Hadley NF., 1994, WATER RELATIONS TERR

[20] Forecasting the severity of seasonal outbreaks of African armyworm, Spodoptera exempta (Lepidoptera: Noctuidae) in Kenya from the previous year's rainfall [J].

Haggis, MJ .

BULLETIN OF ENTOMOLOGICAL RESEARCH, 1996, 86 (02) :129-136

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