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

  title={Differential effects of predator cues versus activation of fight-or-flight behaviour on reproduction in the cricket Gryllus texensis
  author={Shelley A. Adamo and Richard J. McKee},
  journal={Animal Behaviour},

Bank vole alarm pheromone chemistry and effects in the field

The chemistry of alarm pheromones (AP) in the bank vole, a common boreal rodent is identified and the ecological role of AP and chemical communication in mammals is enhanced, clarifying the chemistry of alarming body odour compounds in mammals.

Secondhand horror: effects of direct and indirect predator cues on behavior and reproduction of the bank vole

The study provides two novel ideas, first, the impact of a predator can be socially transmitted, and second, predation risk likely triggers terminal investment in reproduction.

Animals have a Plan B: how insects deal with the dual challenge of predators and pathogens

  • S. Adamo
  • Psychology
    Journal of Comparative Physiology B
  • 2020
When animals are faced with a life-threatening challenge, they mount an organism-wide response (i.e. Plan A). For example, both the stress response (i.e. fight-or-flight) and the immune response

Evaluating Cardiac Reactions of Monarch Butterflies to Human Handling across Three Life Stages

  • A. K. Davis
  • Biology
    The Journal of the Lepidopterists' Society
  • 2020
Investigating if brief periods of handling monarch larvae, pupae, or adults elevates their heart rate using either microscopy or an electronic heart monitor designed for invertebrates elucidates the unseen physiological impact of direct human contact on developing monarchs (larvae and pupae).

The developmental high wire: Balancing resource investment in immunity and reproduction

It is found that an immune challenge does have negative impacts on reproduction, but also that even minor acute stressors can have significant impacts on fitness‐enhancing traits.

Ecological Stoichiometry of Bumblebee Castes, Sexes, and Age Groups

The results showed that body elemental content differs among B. terrestris castes, and it is suggested 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.

Developmental speed affects ecological stoichiometry and adult fat reserves in Drosophila melanogaster

Overall, this study shoes that a combination of bet-hedging, adaptive tracking and developmental plasticity enables fruit flies to respond adaptively to environmental uncertainty.

Spider odors induce stoichiometric changes in fruit fly Drosophila melanogaster

Drosophila melanogaster Ronalds KRAMS, Tatjana KRAMA, Māris MUNKEVICS, Sarah EICHLER, David M. BUTLER, Linda DOBKEVIČA, Priit JÕERS, Jorge CONTRERAS‐GARDUÑO, Janīna DAUKŠTE, and Indrikis A. KRAMS



The behavioural effects of predator-induced stress responses in the cricket (Gryllus texensis): the upside of the stress response

It is found that individual insects (the cricket Gryllus texensis) show reliable behavioural responses in a plus-shaped maze, and exposure to a model predator increased the ability of crickets to escape a live predator, showing that stress hormones can reduce predation.

Predation selects for low resting metabolic rate and consistent individual differences in anti-predator behavior in a beetle

The correlation between behavioral responses suggests a behavioral syndrome in the anti-predator behavior of T. molitor, and the results indicate that energy metabolism may be part of a syndrome that involves behavior and life history traits in animals.

Testing the threat-sensitive predator avoidance hypothesis: physiological responses and predator pressure in wild rabbits

It is concluded that rabbits are able to assess their actual risk of predation and show a threat-sensitive physiological response, and that the physiological stress response was positively correlated with the indexes of the presence of mammalian carnivore predators.

Compensatory mechanisms for ameliorating the fundamental trade-off between predator avoidance and foraging

The findings indicate that hornworm caterpillars use temporally dynamic compensatory mechanisms that ameliorate the trade-off between predator avoidance and growth in the short term, deferring costs to a period when they are less vulnerable to predation.

Short-term exposure to predation affects body elemental composition, climbing speed and survival ability in Drosophila melanogaster

The results suggest that the potential of predators to affect the development and the adult phenotype of D. melanogaster is high enough to use predators as a more natural stimulus in laboratory experiments when testing, for example, fruit fly memory and learning ability, or when comparing natural populations living under different predation pressures.

Chronic, predator-induced stress alters development and reproductive performance of the cotton bollworm, Helicoverpa armigera

The results demonstrated that H. armigera could respond to exposure from a non-consumptive predator by shifting aspects of developmental timing and increasing reproductive effort, with both individual- and population-level consequences.