Variation in physiological response of red imported fire ants (Solenopsis invicta) to small-scale thermal heterogeneity

被引：5

作者：

Boyles, Justin G. ^{[1
]}

Aubrey, Doug P. ^{[2
]}

Hickman, Caleb R. ^{[3
]}

Murray, Kevin L. ^{[4
]}

Timpone, John C. ^{[5
]}

Ops, Carl H. ^{[6
]}

机构：

[1] Indiana State Univ, Dept Biol, Terre Haute, IN 47809 USA

[2] Univ Georgia, Warnell Sch Forestry & Nat Resources, Athens, GA 30602 USA

[3] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA

[4] Univ Miami, Dept Biol, Coral Gables, FL 33124 USA

[5] Environm Solut & Innovat, Cincinnati, OH 45233 USA

[6] Aiken Lab Ecol, Aiken, SC 29803 USA

来源：

JOURNAL OF THERMAL BIOLOGY | 2009年 / 34卷 / 02期

关键词：

Chill-coma; Knock-down resistance; Thermal tolerance; ENVIRONMENTAL TOLERANCE; INFERENCE; EVOLUTION; LIMITS;

D O I：

10.1016/j.jtherbio.2008.10.005

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

(1) We tested the thermal tolerance of red imported fire ants Solenopsis invicta in two small-scale habitats with different thermal microclimates. (2) Knock-down resistance indicated that colonies from an unshaded, warmer site had higher heat tolerance than colonies from a shaded, cooler site. This increased heat tolerance came at no apparent cost to cold tolerance, as ants from both habitats had similar chill-coma recovery times. (3) These results show a marked physiological response to localized anthropogenic habitat alterations. (4) Quantifying the adaptability of thermal tolerance could be important in understanding the ubiquity of fire ants in the southeastern United States. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：81 / 84

页数：4

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