Effects of exposure to short-term heat stress on male reproductive fitness in a soil arthropod

Zizzari, Z. Valentina; Ellers, Jacintha

doi:10.1016/j.jinsphys.2011.01.002

Cited by 59 publications

(49 citation statements)

References 57 publications

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“…clutch size) compared to unstressed females. A previous study on the effects of heat shock in Orchesella , showed that heat stress also affects male reproductive fitness (Zizzari and Ellers ). Most likely, these fitness costs are associated with the expression of heat‐shock proteins, which are known to accumulate over a prolonged period of time in O. cincta (Bahrndorff et al ).…”

Section: Discussionmentioning

confidence: 99%

Rapid shift in thermal resistance between generations through maternal heat exposure

Zizzari

Ellers

2014

Oikos

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Given the current rapid climate change, understanding the mechanisms underlying heat tolerance and its plasticity is an important goal of global change biology. Soil fauna communities are especially vulnerable because of their limited dispersal ability. It is generally recognized that transgenerational effects can contribute to the expression of phenotypic plasticity. Nevertheless, transgenerational plasticity in belowground organisms has received relatively little attention in the context of climate change, despite their major role in soil functioning. Here we test for transgenerational effects of heat shock exposure in the soil arthropod Orchesella cincta, a springtail species that regularly experiences heat stress conditions in its natural environment. We exposed females to heat stress, and subsequently investigated the effects of the same stress on the survival of their offspring. Thermal resistance of the progeny from treated and untreated mothers was compared at three life stages: egg, juvenile and adult. We provide evidence that exposure to heat shock induces a life stage‐dependent increase in thermal resistance in the subsequent generation. The induced adaptive maternal effect persisted into the adult stage of the progeny. However, there is also a tradeoff resulting in reduced clutch size of treated females. These results are of broad significance to understanding the potential of organisms to cope with a changing climate.

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Section: Discussionmentioning

confidence: 99%

Rapid shift in thermal resistance between generations through maternal heat exposure

Zizzari

Ellers

2014

Oikos

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“…For example, heat shock drastically reduced reproductive output of Aphidius avenae females [37] and T. vaporariorum females [22]. Research on the collembolan Orchesella cincta indicated that heat shock also affected male reproductive success in an epimorphosis Hexapoda species [38]. The effect of heat stress on fecundity in insects may be due to the injury of oocytes, interference with ovarian development, reduction in male fertility because of direct injury to the testes and sperm, or a decrease in sexual attractiveness between males and females [39], [40], [41], [42], [43].…”

Section: Discussionmentioning

confidence: 99%

Tolerance to High Temperature Extremes in an Invasive Lace Bug, Corythucha ciliata (Hemiptera: Tingidae), in Subtropical China

Gao

Zhou

et al. 2013

PLoS ONE

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Biological invasions are predicted to be more frequent as climate change is increasing its positive impact on the prevalence of invasive exotic species. Success of insect invaders in different temperature zones is closely related to their tolerance to temperature extremes. In this study, we used an exotic lace bug (Corythucha ciliata) as the study organism to address the hypotheses that an insect species invading a subtropical zone from temperate regions has a high capacity to survive and adapt to high temperatures, and that its thermal tolerance plays an important role in determining its seasonal abundance and geographic distribution. To test these hypotheses, the effects of heat shock on the survival and reproduction of C. ciliata adults were assessed in the laboratory. Adults were exposed to 26 (control), 35, 37, 39, 41, 43, and 45°C for 2 h, and then were transferred to 26°C. Heat-shock temperatures ranging from 35 to 41°C did not significantly affect survival pattern, longevity, and fecundity of adults, but heat shock at 43 and 45°C significantly reduced these traits. Exposing parent females to heat-shock treatments from 35 to 41°C did not significantly affect the hatching rate of their eggs, survival of the nymphs, and the proportion of female F 1 progeny, while no progeny were produced with treatments of 43 and 45°C. The results indicate that C. ciliata can tolerate high temperatures less than 41°C, which may contribute to its expansion into the lower latitudes in China where its hosts (Platanus trees) are widely planted. Our findings have important implications for predicting seasonal abundance and understanding invasion mechanisms of this important urban invader under climate change.

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“…As a consequence, temperate organisms are expected to increase in abundance under climate change because fecundity and developmental rate are often enhanced by a small increase in mean temperature (Cannon, 1998;Parmesan and Yohe, 2003;Rall et al, 2010). However, previous studies on the impact of short-term heat stress (for several hours at constant high temperatures) show that temperate organisms are particularly vulnerable to extreme high temperatures (Tomanek, 2005;Huang et al, 2007) and predict a substantial decrease in these populations (Terblanche et al, 2008;Chidawanyika and Terblanche, 2011;Zizzari and Ellers, 2011). However, our results show that ecologically relevant daily maximum temperatures have an intermediate impact, in contrast to model predictions based on either mean daily temperatures or mean daylight temperatures.…”

Section: Population Predictions and Climate Changementioning

confidence: 99%

Daily temperature extremes play an important role in predicting thermal effects

Hoffmann

2015

Journal of Experimental Biology

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Organisms in natural environments experience diel temperature fluctuations, including sporadic extreme conditions, rather than constant temperatures. Studies based mainly on model organisms have tended to focus on responses to average temperatures or shortterm heat stress, which overlooks the potential impact of daily fluctuations, including stressful daytime periods and milder nighttime periods. Here, we focus on daily maximum temperatures, while holding night-time temperatures constant, to specifically investigate the effects of high temperature on demographic parameters and fitness in the English grain aphid Sitobion avenae. We then compared the observed effects of different daily maximum temperatures with predictions from constant temperature-performance expectations. Moderate daily maximum temperatures depressed aphid performance while extreme conditions had dramatic effects, even when mean temperatures were below the critical maximum. Predictions based on daily average temperature underestimated negative effects of temperature on performance by ignoring daily maximum temperature, while predictions based on daytime maximum temperatures overestimated detrimental impacts by ignoring recovery under mild night-time temperatures. Our findings suggest that daily maximum temperature will play an important role in regulating natural population dynamics and should be considered in predictions. These findings have implications for natural population dynamics, particularly when considering the expected increase in extreme temperature events under climate change.

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Effects of exposure to short-term heat stress on male reproductive fitness in a soil arthropod

Cited by 59 publications

References 57 publications

Rapid shift in thermal resistance between generations through maternal heat exposure

Rapid shift in thermal resistance between generations through maternal heat exposure

Tolerance to High Temperature Extremes in an Invasive Lace Bug, Corythucha ciliata (Hemiptera: Tingidae), in Subtropical China

Daily temperature extremes play an important role in predicting thermal effects

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