I am a behavioural and evolutionary ecologist interested in the factors that influence adaptation and the evolution of reproductive isolation. I primarily use insects in the lab to experimentally test mechanisms that shape adaptation.

• PhD: The role of parents in evolution
  Institute of Criminology, University of Cambridge, Cambridge,

How social evolution impacts ecological adaptation

A primary interest of mine is how social interactions can drive evolutionary dynamics and understanding why these dynamics may be hard to predict. How does sexual selection impact host plant adaptation? I am using broad-headed bugs (Hemiptera: Alydidae) to better understand this process. 

In collaboration with Dr Syuan-Jyun Sun in Taiwan, we are exploring how parental care can help species cope with rapid environmental change as forecast by climate change models, using the burying beetle Nicrophorus nepalensis (Coleoptera: Staphylinidae) as a model.

Evolutionary impacts of invasive species

Alien and invasive species can fundamentally change the communities in which they invade, providing a new niche for species to adapt or restructuring food webs. With Dr Farnon Ellwood I am exploring how the invertebrate community associated with the invasive Rhododendron ponticum has evolved over the last thirty years.

2025

• CyhoeddwydHeat stress effects on offspring compound across parental care
  Malik, T., Tsai, M.-T., Jarrett, B. & Sun, S.-J., 5 Maw 2025, Yn: Proceedings of the Royal Society B: Biological Sciences. 292, 2042, 20250026.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2024

• CyhoeddwydHost Plant Effects on Sexual Selection Dynamics in Phytophagous Insects
  Jarrett, B. & Miller, C., 1 Ion 2024, Yn: Annual Review of Entomology. 69, t. 41-57
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydSelection on the joint actions of pairs leads to divergent adaptation and coadaptation of care-giving parents during pre-hatching care
  Jarrett, B., Mashoodh, R., Issar, S., Pascoal, S., Rebar, D., Sun, S.-J., Schrader, M. & Kilner, R., Meh 2024, Yn: Proceedings of the Royal Society B: Biological Sciences. 291, 2024, 20240876.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydThe effect of experimental warming on reproductive performance and parental care in the burying beetle Nicrophorus nepalensis
  Malik, T., Jarrett, B. & Sun, S.-J., Hyd 2024, Yn: Royal Society Open Science. 11, 10, t. 240653
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2023

• CyhoeddwydNon-target attack of the native stink bug, Podisus maculiventris by Trissolcus japonicus, comes with fitness costs and trade-offs
  Linder, S., Jarrett, B. & Szucs, M., 1 Chwef 2023, Yn: Biological Control. 177, t. 105107
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2022

• CyhoeddwydExperimental adaptation of native parasitoids to the invasive insect pest, Drosophila suzukii
  Jarrett, B., Szucs, M., Linder, S., Fanning, P. & Isaacs, R., 1 Ebr 2022, Yn: Biological Control. 167, 104843.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydGlobal urban environmental change drives adaptation in white clover
  Global Urban Evolution Project, 17 Maw 2022, Yn: Science. 375, 6586, t. 1275-1281
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydLarval environmental conditions influence plasticity in resource use by adults in the burying beetle, Nicrophorus vespilloides
  Schrader, M., Jarrett, B. & Kilner, R., 1 Maw 2022, Yn: Evolution. 76, 3, t. 667-674
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydLimited gains in native parasitoid performance on an invasive host beyond three generations of selection
  Linder, S., Jarrett, B., Fanning, P., Isaacs, R. & Szucs, M., 1 Rhag 2022, Yn: Evolutionary Applications.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydTraits across trophic levels interact to influence parasitoid establishment in biological control releases
  Jarrett, B. & Szucs, M., 10 Maw 2022, Yn: Ecology and Evolution. 12, t. e8654
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2021

• CyhoeddwydEvolutionary change in the construction of the nursery environment when parents are prevented from caring for their young directly
  Jarrett, B., Duarte, A., Rebar, D., Hallett, A. & Kilner, R., 30 Tach 2021, Yn: Proceedings of the National Academy of Sciences of the USA. 118, 48, e2102450118.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2020

• CyhoeddwydAcademic ecosystems must evolve to support a sustainable postdoc workforce
  Alund, M., Emery, N., Jarrett, B. J. M., MacLeod, K. J., McCreery, H. F., Mamoozadeh, N., Phillips, J. G., Schossau, J., Thompson, A. W., Warwick, A. R., Yule, K. M., Zylstra, E. R. & Gering, E., 1 Meh 2020, Yn: Nature Ecology and Evolution. 4, 6, t. 777-781
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydAn evolutionary switch from sibling rivalry to sibling cooperation, caused by a sustained loss of parental care
  Rebar, D., Jarrett, B., Bailey, N. & Kilner, R., 21 Ion 2020, Yn: Proceedings of the National Academy of Sciences of the USA. 117, t. 2544-2550
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydPlastic sexual ornaments: Assessing temperature effects on color metrics in a color-changing reptile
  Assis, B., Jarrett, B., Koscky, G., Langkilde, T. & Avery, J., 20 Mai 2020, Yn: PLoS ONE. 15, t. e0233221
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydRapid local adaptation linked with phenotypic plasticity
  Sun, S.-J., Catherall, A., Pascoal, S., Jarrett, B., Miller, S., Sheehan, M. & Kilner, R., 1 Awst 2020, Yn: Evolution Letters. 4, 4, t. 345-359
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2019

• CyhoeddwydThe Discovery of Trissolcus japonicus (Hymenoptera: Scelionidae) in Michigan
  Jarrett, B., Pote, J., Talamas, E., Gut, L. & Szucs, M., 1 Medi 2019, Yn: The Great Lakes Entomologist. 52, 1, t. 1-6
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2018

• CyhoeddwydAdaptive evolution of synchronous egg-hatching in compensation for the loss of parental care
  Jarrett, B., Rebar, D., Haynes, H., Leaf, M., Halliwell, C., Kemp, R. & Kilner, R., 29 Awst 2018, Yn: Proceedings of the Royal Society B: Biological Sciences. 285, 1885, t. 20181452
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydA sustained change in the supply of parental care causes adaptive evolution of offspring morphology
  Jarrett, B., Evans, E., Haynes, H., Leaf, M., Rebar, D., Duarte, A., Schrader, M. & Kilner, R., 28 Medi 2018, Yn: Nature Communications. 9, t. 3987
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydForest gaps, edge, and interior support different ant communities in a tropical peat-swamp forest in Borneo
  Schreven, S., Perlett, E., Jarrett, B., Marchant, N., Harsanto, F., Purwanto, A., Sykora, K. & Harrison, M., 2018, Yn: Asian Myrmecology. 10, e010010.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydParental care and sibling competition independently increase phenotypic variation among burying beetle siblings
  Schrader, M., Jarrett, B. & Kilner, R., 1 Tach 2018, Yn: Evolution. 72, t. 2546-2552
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydSuperior stimulation of female fecundity by subordinate males provides a mechanism for telegony
  Pascoal, S., Jarrett, B., Evans, E. & Kilner, R., 1 Ebr 2018, Yn: Evolution Letters. 2, 2, t. 114-125
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2017

• CyhoeddwydAdaptation to a novel family environment involves both apparent and cryptic phenotypic changes
  Schrader, M., Jarrett, B., Rebar, D. & Kilner, R., 13 Medi 2017, Yn: Proceedings of the Royal Society B: Biological Sciences. 284, 1862, t. 20171295
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydCooperative interactions within the family enhance the capacity for evolutionary change in body size
  Jarrett, B., Schrader, M., Rebar, D., Houslay, T. & Kilner, R., 26 Mai 2017, Yn: Nature Ecology and Evolution. 1, 0178.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2016

• CyhoeddwydA limit to the extent to which increased egg size can compensate for a poor post-natal environment, revealed experimentally in the burying beetle, Nicrophorus vespilloides
  Schrader, M., Crosby, R., Hesketh, A., Jarrett, B. & Kilner, R., Ion 2016, Yn: Ecology and Evolution. 6, 1, t. 329-336
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2015

• CyhoeddwydParental care masks a density-dependent shift from cooperation to competition among burying beetle larvae
  Schrader, M., Jarrett, B. & Kilner, R., 17 Ebr 2015, Yn: Evolution. 69, 4, t. 1077-1084
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydParental effects alter the adaptive value of an adult behavioural trait
  Kilner, R., Boncoraglio, G., Henshaw, J., Jarrett, B., De Gasperin, O., Attisano, A. & Kokko, H., 22 Hyd 2015, Yn: Elife. t. e07340
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydUsing experimental evolution to study adaptations for life within the family
  Schrader, M., Jarrett, B. & Kilner, R., 1 Mai 2015, Yn: American Naturalist. 185, t. 610-619
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid