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Urban Friberg

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Articles 42
Citations 648
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Recent Articles
1.
Shenoi V, Mital A, Brengdahl M, Abson K, Henderson G, Maxwell M, et al.
Evolution . 2023 May; 77(8):1780-1790. PMID: 37195902
Evolutionary theory assumes that mutations that cause aging either have beneficial early-life effects that gradually become deleterious with advancing age (antagonistic pleiotropy [AP]) or that they only have deleterious effects...
2.
Brengdahl M, Kimber C, Shenoi V, Dumea M, Mital A, Friberg U
Evolution . 2023 Jan; 77(1):254-263. PMID: 36622771
The evolution of aging requires mutations with late-life deleterious effects. Classic theories assume these mutations either have neutral (mutation accumulation) or beneficial (antagonistic pleiotropy) effects early in life, but it...
3.
Malacrino A, Brengdahl M, Kimber C, Mital A, Shenoi V, Mirabello C, et al.
Proc Biol Sci . 2022 Aug; 289(1980):20221115. PMID: 35946149
General evolutionary theory predicts that individuals in low condition should invest less in sexual traits compared to individuals in high condition. Whether this positive association between condition and investment also...
4.
Shenoi V, Brengdahl M, Grace J, Eriksson B, Ryden P, Friberg U
Proc Biol Sci . 2022 May; 289(1974):20212707. PMID: 35538781
Exposing sires to various environmental manipulations has demonstrated that paternal effects can be non-trivial also in species where male investment in offspring is almost exclusively limited to sperm. Whether paternal...
5.
Brengdahl M, Kimber C, Elias P, Thompson J, Friberg U
BMC Biol . 2020 Sep; 18(1):128. PMID: 32993647
Background: In order for aging to evolve in response to a declining strength of selection with age, a genetic architecture that allows for mutations with age-specific effects on organismal performance...
6.
Malacrino A, Kimber C, Brengdahl M, Friberg U
Proc Biol Sci . 2019 Jul; 286(1906):20190819. PMID: 31288700
Theory suggests sexual traits should show heightened condition-dependent expression. This prediction has been tested extensively in experiments where condition has been manipulated through environmental quality. Condition-dependence as a function of...
7.
Brengdahl M, Kimber C, Maguire-Baxter J, Malacrino A, Friberg U
Am Nat . 2018 Nov; 192(6):761-772. PMID: 30444654
Males and females often maximize fitness by pursuing different reproductive strategies, with males commonly assumed to benefit more from increased resource allocation into current reproduction. Such investment should trade off...
8.
Erkosar B, Yashiro E, Zajitschek F, Friberg U, Maklakov A, van der Meer J, et al.
Ecol Evol . 2018 Nov; 8(18):9491-9502. PMID: 30377517
Nutrient supply to ecosystems has major effects on ecological diversity, but it is unclear to what degree the shape of this relationship is general versus dependent on the specific environment...
9.
Zajitschek F, Georgolopoulos G, Vourlou A, Ericsson M, Zajitschek S, Friberg U, et al.
J Gerontol A Biol Sci Med Sci . 2018 May; 74(10):1542-1548. PMID: 29718269
One of the key tenets of life-history theory is that reproduction and survival are linked and that they trade-off with each other. When dietary resources are limited, reduced reproduction with...
10.
Brengdahl M, Kimber C, Maguire-Baxter J, Friberg U
Evolution . 2018 Feb; 72(3):568-577. PMID: 29430636
Life span differs between the sexes in many species. Three hypotheses to explain this interesting pattern have been proposed, involving different drivers: sexual selection, asymmetrical inheritance of cytoplasmic genomes, and...