On the evolution of trophic position

Ecology Letters, Journal Year: 2021, Volume and Issue: 24(12), P. 2549 - 2562

Published: Sept. 22, 2021

The trophic structure of food webs is primarily determined by the variation in position among species and individuals. Temporal dynamics web are central to our understanding energy nutrient fluxes changing environments, but little known about how evolutionary processes shape natural populations. We propose that position, whose expression depends on both environmental genetic determinants diet individual consumers, a quantitative trait can evolve via selection. Such evolution occur either when correlated with other heritable morphological behavioural traits under selection, or target which possible if fitness effects prey items heterogeneously distributed along chains. Recognising as an evolving trait, context, provides important conceptual link between foraging theory dynamics, useful starting point for integration ecological studies position.

Language: Английский

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Pedigree‐free quantitative genetic approach provides evidence for heritability of movement tactics in wild roe deer

Journal of Evolutionary Biology, Journal Year: 2020, Volume and Issue: 33(5), P. 595 - 607

Published: Jan. 27, 2020

Abstract Assessing the evolutionary potential of animal populations in wild is crucial to understanding how they may respond selection mediated by rapid environmental change (e.g. habitat loss and fragmentation). A growing number studies have investigated adaptive role behaviour, but assessments its genetic basis a natural setting remain scarce. We combined intensive biologging technology with genome‐wide data pedigree‐free quantitative approach quantify repeatability, heritability evolvability for suite behaviours related risk avoidance‐resource acquisition trade‐off roe deer ( Capreolus capreolus ) population inhabiting heterogeneous, human‐dominated landscape. These traits, linked stress response, movement space‐use were all moderately highly repeatable. Furthermore, repeatable among‐individual component variation these traits was partly due additive variance, estimates ranging from 0.21 ± 0.08 0.70 0.11 1.1% 4.3%. Changes trait mean can therefore occur under hypothetical directional over just few generations. To best our knowledge, this first empirical demonstration behaviour free‐ranging based on genomic relatedness data. conclude that adjust their spatial human‐driven modifications through microevolutionary change.

Language: Английский

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Why behavioral neuroscience still needs diversity?: A curious case of a persistent need

Neuroscience & Biobehavioral Reviews, Journal Year: 2020, Volume and Issue: 116, P. 130 - 141

Published: June 18, 2020

Language: Английский

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Personality and Emotion

Cambridge University Press eBooks, Journal Year: 2020, Volume and Issue: unknown, P. 81 - 100

Published: Sept. 3, 2020

Since its beginnings as a subdiscipline of psychology (e.g., Allport, 1937; Shand, 1914), personality psychologists have pursued two different, though related goals (see e.g., Cervone, 2005; Mischel & Shoda, 1998). The first goal is to construct general theory the person, understood integrated whole several subsystems mind. second describe and explain important psychological differences between individuals, that is, those relatively stable attributes individuals allow us uniquely characterize them distinguish from each other. Most would agree emotion system central subsystem personality, interindividual traceable this are for describing individuals. However, if one accepts this, then it follows immediately that, attain goals, must consider emotions. In accordance with conclusion, (1) most classical theorists proposed an affective (or affective–motivational) core mind (see, 1914; Murray, 1938), emotions also play prominent role in recent theories 1995). Furthermore, (2) taxonomic models (transsituational) dispositions (usually called traits) include subset refer directly or indirectly part chapter). Nonetheless, in-depth investigation perspective has only begun comparatively recently, wake upsurge interest arose 1980s continues day. time, previously largely separate fields – latter being studies becoming increasingly integrated, benefit both fields.

Language: Английский

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Genetic association with boldness and maternal performance in a free-ranging population of grey seals (Halichoerus grypus)

Heredity, Journal Year: 2021, Volume and Issue: 127(1), P. 35 - 51

Published: April 29, 2021

Language: Английский

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