Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1086/718473 |
Licence  |
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| Title (Primary) | Fluctuations in density-dependent selection drive the evolution of a pace-of-life-syndrome within and between populations |
| Author | Milles, A.; Dammhahn, M.; Jeltsch, F.; Schlägel, U.; Grimm, V. |
| Source Titel | American Naturalist |
| Year | 2022 |
| Department | OESA |
| Volume | 199 |
| Issue | 4 |
| Page From | E124 |
| Page To | E139 |
| Language | englisch |
| Topic | T5 Future Landscapes |
| Keywords | pace-of-life-syndrome; density-dependence; life-history; trait variation; model; personality |
| Abstract | The pace-of-life-syndrome (POLS) hypothesis posits that suites of traits are correlated along a slow-fast continuum due to life-history trade-offs. Despite widespread adoption, environmental conditions driving the emergence of POLS remain unclear. A recently proposed conceptual framework of POLS suggests that a slow-fast continuum should align to fluctuations in density-dependent selection. We tested three key predictions made by this framework with an eco-evolutionary agent-based population model. Selection acted on responsiveness (behavioral trait) to inter-patch resource differences and the reproductive investment threshold (life-history trait). Across environments with density fluctuations of different magnitudes, we observed the emergence of a common axis of trait covariation between and within populations, i.e. the evolution of a POLS. Slow-type (fast-type) populations with high (low) responsiveness and low (high) reproductive investment threshold were selected at high (low) population densities and less (more) intense and frequent density fluctuations. In support of the predictions, fast-type populations contained a higher degree of variation in traits and were associated with higher intrinsic reproductive rate (r0) and higher sensitivity to intraspecific competition (γ), pointing to a universal trade-off. While our findings support that POLS aligns with density-dependent selection, we discuss possible mechanisms which may lead to alternative evolutionary pathways. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=25458 |
| Milles, A., Dammhahn, M., Jeltsch, F., Schlägel, U., Grimm, V. (2022): Fluctuations in density-dependent selection drive the evolution of a pace-of-life-syndrome within and between populations Am. Nat. 199 (4), E124 - E139 10.1086/718473 |
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