A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Exploring polymorphism in a palatable prey : predation risk and frequency dependence in relation to distinct levels of conspicuousness (2024)
Poloni, R., Dhennin, M., Mappes, J., Joron, M., & Nokelainen, O. (2024). Exploring polymorphism in a palatable prey : predation risk and frequency dependence in relation to distinct levels of conspicuousness. Evolution Letters, 8(3), 406-415. https://doi.org/10.1093/evlett/qrad071
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Poloni, Riccardo; Dhennin, Marina; Mappes, Johanna; Joron, Mathieu; Nokelainen, Ossi
Lehti tai sarja: Evolution Letters
eISSN: 2056-3744
Julkaisuvuosi: 2024
Ilmestymispäivä: 11.01.2024
Volyymi: 8
Lehden numero: 3
Artikkelin sivunumerot: 406-415
Kustantaja: Oxford University Press
Julkaisumaa: Britannia
Julkaisun kieli: englanti
DOI: https://doi.org/10.1093/evlett/qrad071
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/92962
Tiivistelmä
Camouflage and warning signals are different antipredator strategies, which offer an excellent opportunity to study the evolutionary forces acting on prey appearance. Edible prey often escape detection via camouflage, which usually leads to apostatic selection favoring rare morphs. By contrast, defended prey often display conspicuous coloration acting as warning signals to predators, which usually leads to positive frequency dependence and signal uniformity. However, when two morphs of the same species vary greatly in conspicuousness, the maintenance of both cryptic and conspicuous forms in profitable prey populations remains enigmatic. Using the white and melanic morphs of the invasive box tree moth (Cydalima perspectalis) presented at three different frequencies, we investigate (a) the palatability of caterpillars and adult moths to birds, (b) predation rates on the less conspicuous melanic morph, and (c) the role of frequency dependence in balancing morph frequencies. Our results show that caterpillars are distasteful for birds but not adult moths that are fully palatable. We found that the less conspicuous, melanic morph, benefits from reduced predation due to its lower detectability. The more conspicuous, white morph, instead, is more predated and is best off when common, suggesting positive frequency dependence. These results offer new insights into the evolution of color polymorphism and prey defenses in a polymorphic moth species. Further investigation is required to understand the role of different predation regimes on the maintenance of the polymorphism in this species and test whether additional selection pressures operate in natural populations.
YSO-asiasanat: suojaväri; muuntelu (biologia); saalistus; evoluutioekologia
Vapaat asiasanat: color evolution; crypsis; evolutionary ecology; invasion ecology; predation
Liittyvät organisaatiot
OKM-raportointi: Kyllä
VIRTA-lähetysvuosi: 2024
Alustava JUFO-taso: 2
