Predation impacts brain allometry and offspring production in female guppies (Poecilia reticulata)

R Vega-Trejo, DJ Mitchell, CV Pouca, A Kotrschal - 2021 - ecoevorxiv.org
Survivorship under predation exerts strong selection on reproductive traits as well as on
brain anatomy of prey. However, how exactly predation and brain evolution are linked has …

[HTML][HTML] Predation impacts brain allometry in female guppies (Poecilia reticulata)

R Vega-Trejo, C Vila-Pouca, DJ Mitchell… - Evolutionary Ecology, 2022 - Springer
Cognitive and sensory abilities are vital in affecting survival under predation risk, leading to
selection on brain anatomy. However, how exactly predation and brain evolution are linked …

Divergence in brain size and brain region volumes across wild guppy populations

AS Reyes, A Bittar, LC Ávila, C Botia… - … of the Royal …, 2022 - royalsocietypublishing.org
Complex evolutionary dynamics have produced extensive variation in brain anatomy in the
animal world. In guppies, Poecilia reticulata, brain size and anatomy have been extensively …

[HTML][HTML] Predation pressure shapes brain anatomy in the wild

A Kotrschal, AE Deacon, AE Magurran, N Kolm - Evolutionary Ecology, 2017 - Springer
There is remarkable diversity in brain anatomy among vertebrates and evidence is
accumulating that predatory interactions are crucially important for this diversity. To test this …

Experimental translocations to low predation lead to non-parallel increases in relative brain size

DJ Mitchell, R Vega-Trejo, A Kotrschal - Biology Letters, 2020 - royalsocietypublishing.org
Predation is a near ubiquitous factor of nature and a powerful selective force on prey.
Moreover, it has recently emerged as an important driver in the evolution of brain anatomy …

Evolutionary divergence of plasticity in brain morphology between ecologically divergent habitats of Trinidadian guppies

CJ Axelrod, Y Yang, E Grant, J Fleming, I Stone… - …, 2024 - academic.oup.com
Phenotypic plasticity is critical for organismal performance and can evolve in response to
natural selection. Brain morphology is often developmentally plastic, affecting animal …

Brain size affects the behavioural response to predators in female guppies (Poecilia reticulata)

W van der Bijl, M Thyselius… - Proceedings of the …, 2015 - royalsocietypublishing.org
Large brains are thought to result from selection for cognitive benefits, but how enhanced
cognition leads to increased fitness remains poorly understood. One explanation is that …

Wild and laboratory exposure to cues of predation risk increases relative brain mass in male guppies

AR Reddon, L Chouinard‐Thuly, I Leris… - Functional …, 2018 - Wiley Online Library
There is considerable diversity in brain size within and among species, and substantial
dispute over the causes, consequences and importance of this variation. Comparative and …

Artificial selection for adult predation survival impacts life history and morphology in guppies (Poecilia reticulata)

H De Waele, R Vega-Trejo, C Vila-Pouca… - bioRxiv, 2024 - biorxiv.org
Predation is accepted as a major evolutionary driver of life history and morphology.
However, whether these traits evolve directly via predation or via indirect effects is largely …

Brain size affects female but not male survival under predation threat

A Kotrschal, SD Buechel, SM Zala… - Ecology …, 2015 - Wiley Online Library
There is remarkable diversity in brain size among vertebrates, but surprisingly little is known
about how ecological species interactions impact the evolution of brain size. Using guppies …