Insect Thermoregulation

May, Michael L.

doi:10.1146/annurev.en.24.010179.001525

Cited by 305 publications

(244 citation statements)

References 94 publications

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“…This pattern is attributed to the generally large body size of the species in this family, which increases vagility and consequently dispersion and distribution. Furthermore, in larger species, thermoregulation is made possible by solar radiation (May 1979(May , 1991, and thus they are more frequently found in open areas. In species of smaller body size, as in the diverse and abundant Zygoptera suborder, thermoregulation seems to be by convection (due to smaller body size) (May 1979(May , 1991, thereby permitting occupation of shaded places such as forest.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, in larger species, thermoregulation is made possible by solar radiation (May 1979(May , 1991, and thus they are more frequently found in open areas. In species of smaller body size, as in the diverse and abundant Zygoptera suborder, thermoregulation seems to be by convection (due to smaller body size) (May 1979(May , 1991, thereby permitting occupation of shaded places such as forest. Given that most of our sampling areas were mainly surrounded by open areas (pasture) and degraded riparian forest, it is to be expected that species of the suborder Anisoptera (the larger-bodied species) are predominant in Serra da Bodoquena.…”

Section: Discussionmentioning

confidence: 99%

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Diversity of Odonata (Insecta) in lotic systems from Serra da Bodoquena, Mato Grosso do Sul State, Brazil

Dalzochio¹,

Costa²,

Uchôa-Fernandes³

2011

Rev. Bras. entomol.

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ABSTRACT. Diversity of Odonata (Insecta) in lotic systems from Serra da Bodoquena, Mato Grosso do Sul State, Brazil. A systematic survey was carried out in four lotic systems from Serra da Bodoquena, the largest natural forests of the State, from August 2007 to November 2008. 548 specimens belonging to 33 species, distributed in 5 families were sampled. Libellulidae was dominant, with 13 species, followed by Gomphidae, Coenagrionidae, Protoneuridae and Calopterygidae.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Diversity of Odonata (Insecta) in lotic systems from Serra da Bodoquena, Mato Grosso do Sul State, Brazil

Dalzochio¹,

Costa²,

Uchôa-Fernandes³

2011

Rev. Bras. entomol.

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“…This thermoregulatory ability can enhance fitness-relevant behavioural and physiological processes, such as locomotor capacity, food assimilation rate and reproductive output [3,4]. Behavioural thermoregulation is widespread in the post-hatching stages of ectotherms, including insects, fishes, amphibians and reptiles, but until recently it was assumed not to occur in the embryonic phase of the life cycle [1,2]. A recent study challenged this assumption by demonstrating that embryos of the Chinese soft-shelled turtle (Pelodiscus sinensis) can move within the egg to exploit warmer regions (those that are closer to the sun-heated ground surface) [5].…”

Section: Introductionmentioning

confidence: 99%

“…To assess the potential significance of thermoregulatory behaviour in embryonic development of oviparous reptiles, we need to answer two fundamental questions. First, do embryos reposition themselves not only to gain heat, but also to avoid thermal extremes (as do adult reptiles [1,2]). Unless embryos can move away from as well as towards 'hot-spots' within the egg, the analogy between embryonic repositioning and an adult reptile's behavioural thermoregulation is weak.…”

Section: Introductionmentioning

confidence: 99%

Turtle embryos move to optimal thermal environments within the egg

Shine

2013

Biol. Lett.

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A recent study demonstrated that the embryos of soft-shelled turtles can reposition themselves within their eggs to exploit locally warm conditions. In this paper, we ask whether turtle embryos actively seek out optimal thermal environments for their development, as do post-hatching individuals. Specifically, (i) do reptile embryos move away from dangerously high temperatures as well as towards warm temperatures? and (ii) is such embryonic movement due to active thermoregulation, or (more simply) to passive embryonic repositioning caused by local heat-induced changes in viscosity of fluids within the egg? Our experiments with an emydid turtle (Chinemys reevesii) show that embryos avoid dangerously high temperatures by moving to cooler regions of the egg. The repositioning of embryos is an active rather than passive process: live embryos move towards a heat source, whereas dead ones do not. Overall, our results suggest that behavioural thermoregulation by turtle embryos is genuinely analogous to the thermoregulatory behaviour exhibited by post-hatching ectotherms.

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“…It leads to the choice of thermally favored microclimates, especially of sunny or shaded substrates (May 1979). Such temperature selection behavior has been reported for a number of lepidopteran (Casey 1976, Kü hrt et al 2005) and coleopteran species (May 1982, Kreuger and Potter 2001, Hausmann et al 2005.…”

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confidence: 86%

Relationship Between Behavior and Physiology in an Invasive Pest Species: Oviposition Site Selection and Temperature-Dependent Development of the Oriental Fruit Moth (Lepidoptera: Tortricidae)

Notter-Hausmann

Dorn

2010

Environ Entomol

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Oviposition site selection is crucial for the reproductive success of a herbivore insect species with relatively sedentary larvae. The optimal oviposition theory, i.e., the preference-performance hypothesis, has thus far mainly been tested with a focus on nutritional quality of the host. This study investigates whether female oriental fruit moth Grapholita (Cydia) molesta choose a microhabitat for oviposition characterized by a temperature range within which their offspring perform best. Thermal preferences of females during oviposition were assessed in a circular temperature gradient arena. Offspring performance and survival were assessed under different constant temperature conditions. Females preferred oviposition sites of ϳ30ЊC over lower and higher temperatures. At this temperature, egg, larval, and pupal development was signiÞcantly faster than at 22 and 25ЊC, and larval development was also faster than at 33ЊC. At 30ЊC and at the lower temperatures tested, survival of eggs and larvae was signiÞcantly higher than at 33ЊC, whereas development was precluded at 35ЊC. Furthermore, female pupal weight attained at 30 and 33ЊC exceeded that reached at the lower temperatures tested. Considering the potentially reduced predation risk caused by the shorter developmental time of eggs and larvae, the laboratory data suggest that this species maximizes its Þtness by selecting a thermally optimal environment for its offspring, supporting the optimal oviposition theory. Conversely, it is known that the codling moth (C. pomonella) lacks a mechanism to avoid temperatures lethal to progeny development, which may reßect the differences in geographic ranges of these tortricids.

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Insect Thermoregulation

Cited by 305 publications

References 94 publications

Diversity of Odonata (Insecta) in lotic systems from Serra da Bodoquena, Mato Grosso do Sul State, Brazil

Diversity of Odonata (Insecta) in lotic systems from Serra da Bodoquena, Mato Grosso do Sul State, Brazil

Turtle embryos move to optimal thermal environments within the egg

Relationship Between Behavior and Physiology in an Invasive Pest Species: Oviposition Site Selection and Temperature-Dependent Development of the Oriental Fruit Moth (Lepidoptera: Tortricidae)

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