A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Extrinsic mortality and senescence: a guide for the perplexed (2023)

de Vries, C., Galipaud, M., & Kokko, H. (2023). Extrinsic mortality and senescence: a guide for the perplexed. Peer Community Journal, 3, Article e29. https://doi.org/10.24072/pcjournal.253

JYU-tekijät tai -toimittajat

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: de Vries, Charlotte; Galipaud, Matthias; Kokko, Hanna

Lehti tai sarja: Peer Community Journal

eISSN: 2804-3871

Julkaisuvuosi: 2023

Ilmestymispäivä: 24.03.2023

Volyymi: 3

Artikkelinumero: e29

Kustantaja: Peer Community In

Julkaisumaa: Ranska

Julkaisun kieli: englanti

DOI: https://doi.org/10.24072/pcjournal.253

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/98484

Rinnakkaistallenteen verkko-osoite (pre-print): https://doi.org/10.1101/2022.01.27.478060

Tiivistelmä

Do environments or species traits that lower the mortality of individuals create selection for delaying senescence? Reading the literature creates an impression that mathematically oriented biologists cannot agree on the validity of George Williams' prediction (who claimed 'yes'). The abundance of models and opinions may bewilder those that are new to the field. Here we provide heuristics as well as simple models that outline when the Williams prediction holds, why there is a 'null model' where extrinsic mortality does not change the evolution of senescence at all, and why it is also possible to expect the opposite of William's prediction, where increased extrinsic mortality favours slower senescence. We hope to offer intuition by quantifying how much delaying the 'placement' of an offspring into the population reduces its expected contribution to the gene pool of the future. Our first example shows why sometimes increased extrinsic mortality has no effect (the null result), and why density dependence can change that. Thereafter, a model with ten different choices for population regulation shows that high extrinsic mortality favours fast life histories (Williams) if increasing density harms the production of juveniles or their chances to recruit into the population. If instead increasing density harms the survival of older individuals in a population, then high extrinsic mortality favours slow life histories (anti-Williams). We discuss the possibility that empirically found Williams-like patterns provide indirect evidence for population regulation operating via harming the production or fitness prospects of juveniles, as opposed to the survival of established breeders.

YSO-asiasanat: evoluutiobiologia; kuolleisuus; valinta; elinympäristö; populaatioekologia; populaatiodynamiikka; populaatiot; mallintaminen; evoluutioteoria

Liittyvät organisaatiot

Hankkeet, joissa julkaisu on tehty

OKM-raportointi: Kyllä

VIRTA-lähetysvuosi: 2024

Alustava JUFO-taso: 1