Differential effects of predator cues versus activation of fight-or-flight behaviour on reproduction in the cricket Gryllus texensis

Adamo, Shelley A.; McKee, Rebecca K.

doi:10.1016/j.anbehav.2017.09.027

Cited by 16 publications

(8 citation statements)

References 54 publications

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“…While it is possible that hormone concentrations in the brains of slowly developing crickets serves as a proximate mechanism underlying their higher stress levels and differences in body elemental composition (Stevenson et al, 2005 ; Zhou et al, 2008 ; Adamo and McKee, 2017 ; Krams et al, 2018 ), it is not clear what is the ultimate reason for becoming shy when developing slowly. Intuitively, shy individuals may benefit from limited activities and greater suspiciousness under higher predator risk.…”

Section: Discussionmentioning

confidence: 99%

Ecological Stoichiometry: A Link Between Developmental Speed and Physiological Stress in an Omnivorous Insect

Trakimas

Krams

Krama

et al. 2019

Front. Behav. Neurosci.

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The elemental composition of organisms belongs to a suite of functional traits that may adaptively respond to fluctuating selection pressures. Life history theory predicts that predation risk and resource limitations impose selection pressures on organisms’ developmental time and are further associated with variability in energetic and behavioral traits. Individual differences in developmental speed, behaviors and physiology have been explained using the pace-of-life syndrome (POLS) hypothesis. However, how an organism’s developmental speed is linked with elemental body composition, metabolism and behavior is not well understood. We compared elemental body composition, latency to resume activity and resting metabolic rate (RMR) of western stutter-trilling crickets (Gryllus integer) in three selection lines that differ in developmental speed. We found that slowly developing crickets had significantly higher body carbon, lower body nitrogen and higher carbon-to-nitrogen ratio than rapidly developing crickets. Slowly developing crickets had significantly higher RMR than rapidly developing crickets. Male crickets had higher RMR than females. Slowly developing crickets resumed activity faster in an unfamiliar relative to a familiar environment. The rapidly developing crickets did the opposite. The results highlight the tight association between life history, physiology and behavior. This study indicates that traditional methods used in POLS research should be complemented by those used in ecological stoichiometry, resulting in a synthetic approach that potentially advances the whole field of behavioral and physiological ecology.

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Section: Discussionmentioning

confidence: 99%

Ecological Stoichiometry: A Link Between Developmental Speed and Physiological Stress in an Omnivorous Insect

Trakimas

Krams

Krama

et al. 2019

Front. Behav. Neurosci.

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“…However, body N concentrations were the highest in workers and young queens, which rely on functional flight muscles more than ovipositing queens and males. On the other hand, it has been shown that heightened stress levels may affect reproductive responses in insects (Adamo and McKee, 2017) by decreasing body mass and potentially increasing body N concentration and reducing the C/N ratio. It has been recently shown that fruit flies reared together with predators were found to be somewhat smaller (Krams et al, 2016(Krams et al, , 2020.…”

Section: Discussionmentioning

confidence: 99%

Ecological Stoichiometry of Bumblebee Castes, Sexes, and Age Groups

et al. 2021

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Ecological stoichiometry is important for revealing how the composition of chemical elements of organisms is influenced by their physiological functions and ecology. In this study, we investigated the elemental body composition of queens, workers, and males of the bumblebee Bombus terrestris, an important pollinator throughout Eurasia, North America, and northern Africa. Our results showed that body elemental content differs among B. terrestris castes. Young queens and workers had higher body nitrogen concentration than ovipositing queens and males, while castes did not differ significantly in their body carbon concentration. Furthermore, the carbon-to-nitrogen ratio was higher in ovipositing queens and males. We suggest that high body nitrogen concentration and low carbon-to-nitrogen ratio in young queens and workers may be related to their greater amount of flight muscles and flight activities than to their lower stress levels. To disentangle possible effects of stress in the agricultural landscape, further studies are needed to compare the elemental content of bumblebee bodies between natural habitats and areas of high-intensity agriculture.

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“…This might decrease the degree of plasticity of stoichiometric responses of females. An alternative explanation has been recently suggested by Adamo and McKee (2017) . They found that repeated flight-or-fight responses induce reproductive responses which decrease body mass and have the potential to increase body N and to reduce the C/N ratio as observed in male fruit flies in this study.…”

mentioning

confidence: 93%

“…They found that repeated flight-or-fight responses induce reproductive responses which decrease body mass and have the potential to increase body N and to reduce the C/N ratio as observed in male fruit flies in this study. Adamo and McKee (2017) suggested that even short-lived insects may alter their reproductive efforts based on the level of predation risk in their environment because the induction of reproductive investment might be an adaptive strategy under higher uncertainty of survival. It is important to note that sex differences in body C between the odor stress and the predator stress groups still await an explanation from the point of view of the GSP, as do differences in stoichiometry between individuals of both stress groups.…”

mentioning

confidence: 99%