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Keywords: Fitness
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Journal Articles
J Exp Biol (2022) 225 (3): jeb239004.
Published: 28 January 2022
... with epigenetic control of physiology is only beginning to emerge. This Review gives insights into how food availability times, affected by changes in eating schedules and/or by alterations in feeding environment or lifestyle, could have hitherto unknown consequences on the physiology and reproductive fitness...
Journal Articles
J Exp Biol (2021) 224 (23): jeb242884.
Published: 6 December 2021
... is a consequence of cell shrinkage in response to hypoxia, (iii) this response enables organisms to maintain a wide scope for aerobic performance, and (iv) it prevents a decrease in fitness. We examined three clones of the rotifer Lecane inermis exposed to three experimental regimes: mild hypoxia, severe hypoxia...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (12): jeb234633.
Published: 18 June 2021
... solutions. Amino acids, while relevant to adult health and reproductive fitness in some circumstances ( Mevi-Schütz and Erhardt, 2005 ), are not predicted to have a larger effect on nectar preference than sugar and caloric value. Furthermore, in this experiment none of the tested nectar solutions can...
Journal Articles
J Exp Biol (2021) 224 (11): jeb240846.
Published: 4 June 2021
...Dominic Mason; Susanne Zajitschek; Hamza Anwer; Rose E. O'Dea; Daniel Hesselson; Shinichi Nakagawa ABSTRACT Aversive learning – avoiding certain situations based on negative experiences – can profoundly increase fitness in animal species, yet no studies have systematically quantified its...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (5): jeb237016.
Published: 1 March 2021
...Jessica Alice Leivesley; Njal Rollinson ABSTRACT The Charnov–Bull model of differential fitness is often used to explain the evolution and maintenance of temperature-dependent sex determination (TSD). Most tests of the model focus on morphological proxies of fitness, such as size traits, whereas...
Journal Articles
J Exp Biol (2021) 224 (Suppl_1): jeb238626.
Published: 24 February 2021
... ; De Meester et al., 2018 and references therein). This is simply because mutations appear randomly, and allele frequency changes take time even when there is sufficient variation and strong selection. Variability and unpredictability of the environment may further continually shift potential fitness...
Journal Articles
J Exp Biol (2021) 224 (1): jeb231290.
Published: 6 January 2021
...Tiia Kärkkäinen; Pauliina Teerikorpi; Wiebke Schuett; Antoine Stier; Toni Laaksonen ABSTRACT Early-life conditions are crucial determinants of phenotype and fitness. The effects of pre- and post-natal conditions on fitness prospects have been widely studied but their interactive effects have...
Journal Articles
J Exp Biol (2020) 223 (23): jeb237255.
Published: 11 December 2020
... Macronutrient content Protein Spider Fitness Growth Reproduction As for all organisms, predators experience trade-offs between life-history traits or fitness components, including growth, reproduction and survival, due to limited resources within a set time frame ( Roff, 2002 ; Stearns, 1992...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (5): jeb219196.
Published: 11 March 2020
...Shelly C. McCain; Sydney Kopelic; Thomas M. Houslay; Alastair J. Wilson; Huanda Lu; Ryan L. Earley ABSTRACT In heterogeneous environments, mobile species should occupy habitats in which their fitness is maximized. Mangrove rivulus fish inhabit mangrove ecosystems where salinities range from 0 to 65...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (14): jeb207019.
Published: 23 July 2019
... no competing or financial interests. 13 5 2019 30 6 2019 © 2019. Published by The Company of Biologists Ltd 2019 http://www.biologists.com/user-licence-1-1/ Summary: Uncontrolled production of an immune mediator, PGE2, leads to fitness costs accompanying reduction...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (11): jeb200220.
Published: 7 June 2019
...Kaitlyn G. Holden; Dawn M. Reding; Neil B. Ford; Anne M. Bronikowski ABSTRACT Early-life experiences can have far-reaching consequences for phenotypes into adulthood. The effect of early-life experiences on fitness, particularly under adverse conditions, is mediated by resource allocation...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (24): jeb187930.
Published: 12 December 2018
...Tim S. Jessop; Jonathan Webb; Tim Dempster; Benjamin Feit; Mike Letnic ABSTRACT Animals use irruptive movement to avoid exposure to stochastic and pervasive environmental stressors that impact fitness. Beneficial irruptive movements transfer individuals from high-stress areas (conferring low...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (20): jeb185645.
Published: 22 October 2018
... important for parasitoid larvae as they lack lipogenesis and therefore rely entirely on the host for this resource. The goal of this study was to determine to what extent winged and wingless aphids differ from a nutritional point of view and whether these differences impact parasitoid fitness, notably...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (19): jeb182055.
Published: 4 October 2018
...Marko D. Prokić; Svetlana G. Despotović; Tijana Z. Vučić; Tamara G. Petrović; Jelena P. Gavrić; Branka R. Gavrilović; Tijana B. Radovanović; Zorica S. Saičić ABSTRACT Oxidative stress has most recently been suggested as one of the possible mechanisms responsible for reduced fitness of hybrids...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (14): jeb182642.
Published: 17 July 2018
...Alex M. Rubin; Richard W. Blob; Christopher J. Mayerl ABSTRACT Self-righting performance is a key ability for most terrestrial animals, and has been used as a metric of fitness, exhaustion and thermal limits in a variety of taxa. However, there is little understanding of the underlying mechanisms...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (9): jeb175554.
Published: 11 May 2018
... time, reproduction and lifespan of the organism. Studies so far have focused on discriminating between protein and carbohydrate uptake and the consequences on fitness components at different life stages. However, it is largely unknown whether and how the developmental diets, which may entail habitat...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (6): jeb174771.
Published: 26 March 2018
... significant sleep loss and lowered fecundity. This demonstration of a direct relationship between sleep and reproductive fitness indicates a strong driving force for the evolution of sleep. * Author for correspondence ( sheeba@jncasr.ac.in ) Competing interests The authors declare no competing...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (5): jeb170902.
Published: 13 March 2018
... physiology as is commonly assumed. Milk energy output Fitness Reproductive success Lactation The maximum rate at which animals can process energy over protracted periods of time (i.e. sustained energy intake, SusEI) is a trait of key significance because it imposes an upper boundary...
Journal Articles
J Exp Biol (2018) 221 (4): jeb171595.
Published: 27 February 2018
...Killu Timm; Kees Van Oers; Vallo Tilgar ABSTRACT Individual differences in coping with potentially dangerous situations are affected by a combination of genetic and environmental factors. How genetic polymorphisms and behavioural variations are related to fitness is unknown. One of the candidate...
Journal Articles
J Exp Biol (2017) 220 (24): 4711–4719.
Published: 15 December 2017
... , J. I. ( 2011 ). Shy trout grow faster: exploring links between personality and fitness-related traits in the wild . Behav. Ecol.   22 , 135 - 143 . 10.1093/beheco/arq185 Adriaenssens , B. and Johnsson , J. I. ( 2013 ). Natural selection, plasticity and the emergence...
Includes: Supplementary data