Advanced search
1 file | 660.64 KB Add to list

The distinct phenotypic signatures of dispersal and stress in an arthropod model : from physiology to life history

Author
Organization
Abstract
Dispersing individuals are expected to encounter costs during transfer and in the novel environment, and may also have experienced stress in their natal patch. Given this, a non-random subset of the population should engage in dispersal and show divergent stress-related responses. This includes physiological shifts as expressed in the metabolome, which form a major part of responses to stress. We analyzed how metabolic profiles and life-history traits varied between dispersers and residents of the model two-spotted spider mite Tetranychus urticae, and whether and how these syndromes varied with exposure to a stressful new host plant (tomato). Regardless of the effect of host plant, we found a physiological dispersal syndrome where, relative to residents, dispersers were characterized by lower leaf consumption and a lower concentration of several amino acids, indicating a potential dispersal-foraging trade-off. As a possible consequence of this lower food intake, dispersers also laid smaller eggs. Responses to tomato were consistent with this plant being a stressor for T. urticae, including reduced fecundity and reduced feeding. Tomato-exposed mites laid larger eggs, which we interpret as a plastic response to food stress, increasing survival to maturity. Contrary to what was expected from the costs of dispersal and from previous meta-population level studies, there was no interaction between dispersal status and host plant for any of the examined traits, meaning stress impacts were equally incurred by residents and dispersers. We thus provide novel insights into the processes shaping dispersal and the feedbacks on ecological dynamics in spatially structured populations.
Keywords
2-SPOTTED SPIDER-MITE, HOST-PLANT, METAPOPULATION STRUCTURE, SEX-RATIO, EGG SIZE, COMPETITION, STARVATION, HERBIVORE, EVOLUTION, TRAITS, Amino acids, Biotic stress, Dispersal syndrome, Foraging, Metabolic, profiling

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 660.64 KB

Citation

Please use this url to cite or link to this publication:

MLA
Dahirel, Maxime, et al. “The Distinct Phenotypic Signatures of Dispersal and Stress in an Arthropod Model : From Physiology to Life History.” JOURNAL OF EXPERIMENTAL BIOLOGY, vol. 222, no. 16, 2019.
APA
Dahirel, M., Masier, S., Renault, D., & Bonte, D. (2019). The distinct phenotypic signatures of dispersal and stress in an arthropod model : from physiology to life history. JOURNAL OF EXPERIMENTAL BIOLOGY, 222(16).
Chicago author-date
Dahirel, Maxime, Stefano Masier, David Renault, and Dries Bonte. 2019. “The Distinct Phenotypic Signatures of Dispersal and Stress in an Arthropod Model : From Physiology to Life History.” JOURNAL OF EXPERIMENTAL BIOLOGY 222 (16).
Chicago author-date (all authors)
Dahirel, Maxime, Stefano Masier, David Renault, and Dries Bonte. 2019. “The Distinct Phenotypic Signatures of Dispersal and Stress in an Arthropod Model : From Physiology to Life History.” JOURNAL OF EXPERIMENTAL BIOLOGY 222 (16).
Vancouver
1.
Dahirel M, Masier S, Renault D, Bonte D. The distinct phenotypic signatures of dispersal and stress in an arthropod model : from physiology to life history. JOURNAL OF EXPERIMENTAL BIOLOGY. 2019;222(16).
IEEE
[1]
M. Dahirel, S. Masier, D. Renault, and D. Bonte, “The distinct phenotypic signatures of dispersal and stress in an arthropod model : from physiology to life history,” JOURNAL OF EXPERIMENTAL BIOLOGY, vol. 222, no. 16, 2019.
@article{8636815,
  abstract     = {{Dispersing individuals are expected to encounter costs during transfer and in the novel environment, and may also have experienced stress in their natal patch. Given this, a non-random subset of the population should engage in dispersal and show divergent stress-related responses. This includes physiological shifts as expressed in the metabolome, which form a major part of responses to stress. We analyzed how metabolic profiles and life-history traits varied between dispersers and residents of the model two-spotted spider mite Tetranychus urticae, and whether and how these syndromes varied with exposure to a stressful new host plant (tomato). Regardless of the effect of host plant, we found a physiological dispersal syndrome where, relative to residents, dispersers were characterized by lower leaf consumption and a lower concentration of several amino acids, indicating a potential dispersal-foraging trade-off. As a possible consequence of this lower food intake, dispersers also laid smaller eggs. Responses to tomato were consistent with this plant being a stressor for T. urticae, including reduced fecundity and reduced feeding. Tomato-exposed mites laid larger eggs, which we interpret as a plastic response to food stress, increasing survival to maturity. Contrary to what was expected from the costs of dispersal and from previous meta-population level studies, there was no interaction between dispersal status and host plant for any of the examined traits, meaning stress impacts were equally incurred by residents and dispersers. We thus provide novel insights into the processes shaping dispersal and the feedbacks on ecological dynamics in spatially structured populations.}},
  articleno    = {{jeb203596}},
  author       = {{Dahirel, Maxime and Masier, Stefano and Renault, David and Bonte, Dries}},
  issn         = {{0022-0949}},
  journal      = {{JOURNAL OF EXPERIMENTAL BIOLOGY}},
  keywords     = {{2-SPOTTED SPIDER-MITE,HOST-PLANT,METAPOPULATION STRUCTURE,SEX-RATIO,EGG SIZE,COMPETITION,STARVATION,HERBIVORE,EVOLUTION,TRAITS,Amino acids,Biotic stress,Dispersal syndrome,Foraging,Metabolic,profiling}},
  language     = {{eng}},
  number       = {{16}},
  pages        = {{10}},
  title        = {{The distinct phenotypic signatures of dispersal and stress in an arthropod model : from physiology to life history}},
  url          = {{http://dx.doi.org/10.1242/jeb.203596}},
  volume       = {{222}},
  year         = {{2019}},
}

Altmetric
View in Altmetric
Web of Science
Times cited: