A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Size-dependent aggression towards kin in a cannibalistic species (2022)
Fouilloux, C. A., Fromhage, L., Valkonen, J. K., & Rojas, B. (2022). Size-dependent aggression towards kin in a cannibalistic species. Behavioral Ecology, 33(3), 582-591. https://doi.org/10.1093/beheco/arac020
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Fouilloux, Chloe A.; Fromhage, Lutz; Valkonen, Janne K.; Rojas, Bibiana
Lehti tai sarja: Behavioral Ecology
ISSN: 1045-2249
eISSN: 1465-7279
Julkaisuvuosi: 2022
Ilmestymispäivä: 25.03.2022
Volyymi: 33
Lehden numero: 3
Artikkelin sivunumerot: 582-591
Kustantaja: Oxford University Press (OUP)
Julkaisumaa: Britannia
Julkaisun kieli: englanti
DOI: https://doi.org/10.1093/beheco/arac020
Linkki tutkimusaineistoon: https://doi.org/10.5061/dryad.zs7h44j6w
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/81645
Tiivistelmä
In juveniles extreme intraspecies aggression can seem counter-intuitive, as it might endanger their developmental goal of surviving until reproductive stage. Ultimately, aggression can be vital for survival, although the factors (e.g., genetic or environmental) leading to the expression and intensity of this behavior vary across taxa. Attacking (and sometimes killing) related individuals may reduce inclusive fitness; as a solution to this problem, some species exhibit kin discrimination and preferentially attack unrelated individuals. Here, we used both experimental and modeling approaches to consider how physical traits (e.g., size in relation to opponent) and genetic relatedness mediate aggression in dyads of cannibalistic Dendrobates tinctorius tadpoles. We paired full-sibling, half-sibling, and non-sibling tadpoles of different sizes together in an arena and recorded their aggression and activity. We found that the interaction between relative size and relatedness predicts aggressive behavior: large individuals in non-sibling dyads are significantly more aggressive than large individuals in sibling dyads. Unexpectedly, although siblings tended to attack less overall, in size-mismatched pairs they attacked faster than in non-sibling treatments. Using a theoretical model to complement these empirical findings, we propose that larval aggression reflects a balance between relatedness and size where individuals trade-off their own fitness with that of their relatives.
YSO-asiasanat: eläinten käyttäytyminen; sukulaisvalinta; kannibalismi; sammakot
Liittyvät organisaatiot
Hankkeet, joissa julkaisu on tehty
- Kannibalismin merkitys sienitaudin tartuntariskiin sammakoilla
- Rojas Zuluaga, Bibiana
- Suomen Akatemia
OKM-raportointi: Kyllä
Raportointivuosi: 2022
JUFO-taso: 2