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  1. Artikel ; Online: Choosing the best shoulder replacement.

    Evans, Jonathan P / Smith, Christopher D / Evans, Jonathan T

    BMJ (Clinical research ed.)

    2024  Band 385, Seite(n) q952

    Mesh-Begriff(e) Humans ; Arthroplasty, Replacement, Shoulder/methods ; Shoulder Joint/surgery ; Shoulder Prosthesis/adverse effects ; Prosthesis Design
    Sprache Englisch
    Erscheinungsdatum 2024-04-30
    Erscheinungsland England
    Dokumenttyp Editorial ; Comment
    ZDB-ID 1362901-3
    ISSN 1756-1833 ; 0959-8154 ; 0959-8146 ; 0959-8138 ; 0959-535X ; 1759-2151
    ISSN (online) 1756-1833
    ISSN 0959-8154 ; 0959-8146 ; 0959-8138 ; 0959-535X ; 1759-2151
    DOI 10.1136/bmj.q952
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel: The Amelioration of Grazing through Physiological Integration by a Clonal Dune Plant.

    Evans, Jonathan P / Meckstroth, Shelby / Garai, Julie

    Plants (Basel, Switzerland)

    2023  Band 12, Heft 4

    Abstract: Rhizomatous growth and associated physiological integration can allow a clonal dune species to potentially compensate for the selective removal of leaves associated with herbivory. ...

    Abstract Rhizomatous growth and associated physiological integration can allow a clonal dune species to potentially compensate for the selective removal of leaves associated with herbivory.
    Sprache Englisch
    Erscheinungsdatum 2023-02-06
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants12040724
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel: Testing for age-dependent effects of dietary restriction on the strength of condition dependence in ejaculate traits in the guppy (

    Evans, Jonathan P / Turnbull, Elizabeth J / Lymbery, Rowan A

    Royal Society open science

    2023  Band 10, Heft 8, Seite(n) 230805

    Abstract: Ejaculates can be costly to produce and depend on an individual's condition, defined as the pool of resources allocated to fitness. A method for assessing condition dependence is to manipulate resource availability and test for a reduction in trait ... ...

    Abstract Ejaculates can be costly to produce and depend on an individual's condition, defined as the pool of resources allocated to fitness. A method for assessing condition dependence is to manipulate resource availability and test for a reduction in trait expression. Here, we assess the effects of dietary restriction on two determinants of reproductive fitness in the guppy
    Sprache Englisch
    Erscheinungsdatum 2023-08-30
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2787755-3
    ISSN 2054-5703
    ISSN 2054-5703
    DOI 10.1098/rsos.230805
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  4. Artikel ; Online: Female reproductive fluids 'rescue' sperm from phenotypic ageing in an external fertilizer.

    Hadlow, Jessica H / Evans, Jonathan P / Lymbery, Rowan A

    Proceedings. Biological sciences

    2023  Band 290, Heft 1999, Seite(n) 20230574

    Abstract: Female reproductive fluids (FRFs) serve key reproductive functions in sexually reproducing animals, including modifying the way sperm swim and detect eggs, and influencing sperm lifespan. Despite the central role of FRF during fertilization, we know ... ...

    Abstract Female reproductive fluids (FRFs) serve key reproductive functions in sexually reproducing animals, including modifying the way sperm swim and detect eggs, and influencing sperm lifespan. Despite the central role of FRF during fertilization, we know surprisingly little about sperm-FRF interactions under different environmental conditions. Theory suggests that in external fertilizers FRF may 'rescue' sperm from ageing effects as they search to fertilize eggs. Here, we test the interaction between these two fundamental properties of the fertilization environment, ejaculate age (i.e. time since ejaculation) and FRF, on a range of functional sperm phenotypes in a broadcast spawning mussel,
    Mesh-Begriff(e) Male ; Female ; Animals ; Fertilizers ; Semen ; Sperm Motility ; Aging ; Gonadotropin-Releasing Hormone ; Spermatozoa ; Phenotype
    Chemische Substanzen Fertilizers ; Gonadotropin-Releasing Hormone (33515-09-2)
    Sprache Englisch
    Erscheinungsdatum 2023-05-24
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 209242-6
    ISSN 1471-2954 ; 0080-4649 ; 0962-8452 ; 0950-1193
    ISSN (online) 1471-2954
    ISSN 0080-4649 ; 0962-8452 ; 0950-1193
    DOI 10.1098/rspb.2023.0574
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  5. Artikel ; Online: Paternal environment effects are driven by female reproductive fluid but not sperm age in an external fertilizer.

    Hadlow, Jessica H / Lymbery, Rowan A / Evans, Jonathan P

    Biology letters

    2023  Band 19, Heft 11, Seite(n) 20230368

    Abstract: Sperm ageing after ejaculation can generate paternal environment effects that impact offspring fitness. In many species, female reproductive fluids (FRFs), i.e. ancillary fluids released by eggs or within the female reproductive tract, may protect sperm ... ...

    Abstract Sperm ageing after ejaculation can generate paternal environment effects that impact offspring fitness. In many species, female reproductive fluids (FRFs), i.e. ancillary fluids released by eggs or within the female reproductive tract, may protect sperm from ageing and can additionally interact with sperm to influence offspring viability. This raises the intriguing prospect that FRFs may alleviate paternal effects associated with sperm ageing. Here, we test this novel hypothesis using the broadcast spawning mussel,
    Mesh-Begriff(e) Male ; Female ; Humans ; Fertilizers ; Paternal Inheritance ; Semen ; Spermatozoa/physiology ; Reproduction ; Fertilization
    Chemische Substanzen Fertilizers
    Sprache Englisch
    Erscheinungsdatum 2023-11-22
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2135022-X
    ISSN 1744-957X ; 1744-9561
    ISSN (online) 1744-957X
    ISSN 1744-9561
    DOI 10.1098/rsbl.2023.0368
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel: Population density effects on gamete traits and fertilisation dynamics under varying sperm environments in mussels.

    Sherman, Craig D H / Careau, Vincent / Gasparini, Clelia / Weston, Kim J / Evans, Jonathan P

    Ecology and evolution

    2024  Band 14, Heft 5, Seite(n) e11338

    Abstract: Gamete traits can vary widely among species, populations and individuals, influencing fertilisation dynamics and overall reproductive fitness. Sexual selection can play an important role in determining the evolution of gamete traits with local ... ...

    Abstract Gamete traits can vary widely among species, populations and individuals, influencing fertilisation dynamics and overall reproductive fitness. Sexual selection can play an important role in determining the evolution of gamete traits with local environmental conditions determining the strength and direction of sexual selection. Here, we test for signatures of post-mating selection on gamete traits in relation to population density, and possible interactive effects of population density and sperm concentration on sperm motility and fertilisation rates among natural populations of mussels. Our study shows that males from high-density populations produce smaller sperm compared with males from low-density populations, but we detected no effect of population density on egg size. Our results also reveal that females from low-density populations tended to exhibit lower fertilisation rates across a range of sperm concentrations, although this became less important as sperm concentration increased. Variances in fertilisation success were higher for females than males and the effect of gamete compatibility between males and females increases as sperm concentrations increase. These results suggest that local population density can influence gamete traits and fertilisation dynamics but also highlight the importance of phenotypic plasticity in governing sperm-egg interactions in a highly dynamic selective environment.
    Sprache Englisch
    Erscheinungsdatum 2024-05-02
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2635675-2
    ISSN 2045-7758
    ISSN 2045-7758
    DOI 10.1002/ece3.11338
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  7. Artikel: Density-dependent patterns of multivariate selection on sperm motility and morphology in a broadcast spawning mussel.

    Hadlow, Jessica H / Lymbery, Rowan A / Evans, Jonathan P

    Ecology and evolution

    2022  Band 12, Heft 2, Seite(n) e8514

    Abstract: Sperm cells exhibit extraordinary phenotypic variation, both among taxa and within individual species, yet our understanding of the adaptive value of sperm trait variation across multiple contexts is incomplete. For species without the opportunity to ... ...

    Abstract Sperm cells exhibit extraordinary phenotypic variation, both among taxa and within individual species, yet our understanding of the adaptive value of sperm trait variation across multiple contexts is incomplete. For species without the opportunity to choose mating partners, such as sessile broadcast spawning invertebrates, fertilization depends on gamete interactions, which in turn can be strongly influenced by local environmental conditions that alter the concentration of sperm and eggs. However, the way in which such environmental factors impact phenotypic selection on functional gamete traits remains unclear in most systems. Here, we analyze patterns of linear and nonlinear multivariate selection under experimentally altered local sperm densities (densities within the capture zone of eggs) on a range of functionally important sperm traits in the broadcast spawning marine mussel,
    Sprache Englisch
    Erscheinungsdatum 2022-02-09
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2635675-2
    ISSN 2045-7758
    ISSN 2045-7758
    DOI 10.1002/ece3.8514
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  8. Artikel ; Online: Ocean acidification alters sperm responses to egg-derived chemicals in a broadcast spawning mussel.

    Lymbery, Rowan A / Brouwer, Jill / Evans, Jonathan P

    Biology letters

    2022  Band 18, Heft 4, Seite(n) 20220042

    Abstract: The continued emissions of anthropogenic carbon dioxide are causing progressive ocean acidification (OA). While deleterious effects of OA on biological systems are well documented in the growth of calcifying organisms, lesser studied impacts of OA ... ...

    Abstract The continued emissions of anthropogenic carbon dioxide are causing progressive ocean acidification (OA). While deleterious effects of OA on biological systems are well documented in the growth of calcifying organisms, lesser studied impacts of OA include potential effects on gamete interactions that determine fertilization, which are likely to influence the many marine species that spawn gametes externally. Here, we explore the effects of OA on the signalling mechanisms that enable sperm to track egg-derived chemicals (sperm chemotaxis). We focus on the mussel
    Mesh-Begriff(e) Animals ; Female ; Hydrogen-Ion Concentration ; Male ; Mytilus/physiology ; Seawater/chemistry ; Sperm-Ovum Interactions ; Spermatozoa/physiology
    Sprache Englisch
    Erscheinungsdatum 2022-04-06
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2135022-X
    ISSN 1744-957X ; 1744-9561
    ISSN (online) 1744-957X
    ISSN 1744-9561
    DOI 10.1098/rsbl.2022.0042
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  9. Artikel ; Online: Sexual selection after gamete release in broadcast spawning invertebrates.

    Evans, Jonathan P / Lymbery, Rowan A

    Philosophical transactions of the Royal Society of London. Series B, Biological sciences

    2020  Band 375, Heft 1813, Seite(n) 20200069

    Abstract: Broadcast spawning invertebrates offer highly tractable models for evaluating sperm competition, gamete-level mate choice and sexual conflict. By displaying the ancestral mating strategy of external fertilization, where sexual selection is constrained to ...

    Abstract Broadcast spawning invertebrates offer highly tractable models for evaluating sperm competition, gamete-level mate choice and sexual conflict. By displaying the ancestral mating strategy of external fertilization, where sexual selection is constrained to act after gamete release, broadcast spawners also offer potential evolutionary insights into the cascade of events that led to sexual reproduction in more 'derived' groups (including humans). Moreover, the dynamic reproductive conditions faced by these animals mean that the strength and direction of sexual selection on both males and females can vary considerably. These attributes make broadcast spawning invertebrate systems uniquely suited to testing, extending, and sometimes challenging classic and contemporary ideas in sperm competition, many of which were first captured in Parker's seminal papers on the topic. Here, we provide a synthesis outlining progress in these fields, and highlight the burgeoning potential for broadcast spawners to provide both evolutionary and mechanistic understanding into gamete-level sexual selection more broadly across the animal kingdom. This article is part of the theme issue 'Fifty years of sperm competition'.
    Mesh-Begriff(e) Animals ; Fertilization ; Germ Cells/physiology ; Invertebrates/physiology ; Sexual Selection
    Sprache Englisch
    Erscheinungsdatum 2020-10-19
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 208382-6
    ISSN 1471-2970 ; 0080-4622 ; 0264-3839 ; 0962-8436
    ISSN (online) 1471-2970
    ISSN 0080-4622 ; 0264-3839 ; 0962-8436
    DOI 10.1098/rstb.2020.0069
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel: Personality, sperm traits and a test for their combined dependence on male condition in guppies.

    Galluccio, Edward / Lymbery, Rowan A / Wilson, Alastair / Evans, Jonathan P

    Royal Society open science

    2022  Band 9, Heft 6, Seite(n) 220269

    Abstract: There is evidence that animal personality can affect sexual selection, with studies reporting that male behavioural types are associated with success during pre- and post-copulatory sexual selection. Given these links between personality and sexual ... ...

    Abstract There is evidence that animal personality can affect sexual selection, with studies reporting that male behavioural types are associated with success during pre- and post-copulatory sexual selection. Given these links between personality and sexual traits, and the accumulating evidence that their expression can depend on an individual's dietary status (i.e. condition), a novel prediction is that changes in a male's diet should alter both the average expression of personality and sexual traits, and their covariance. We tested these predictions using the guppy
    Sprache Englisch
    Erscheinungsdatum 2022-06-01
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2787755-3
    ISSN 2054-5703
    ISSN 2054-5703
    DOI 10.1098/rsos.220269
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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