Evolutionary ecology of intraspecific brain size variation: a review
A Gonda, G Herczeg, J Merilä - Ecology and Evolution, 2013 - Wiley Online Library
The brain is a trait of central importance for organismal performance and fitness. To date,
evolutionary studies of brain size variation have mainly utilized comparative methods …
evolutionary studies of brain size variation have mainly utilized comparative methods …
Artificial selection on relative brain size in the guppy reveals costs and benefits of evolving a larger brain
A Kotrschal, B Rogell, A Bundsen, B Svensson… - Current Biology, 2013 - cell.com
The large variation in brain size that exists in the animal kingdom has been suggested to
have evolved through the balance between selective advantages of greater cognitive ability …
have evolved through the balance between selective advantages of greater cognitive ability …
Social plasticity in the fish brain: Neuroscientific and ethological aspects
Social plasticity, defined as the ability to adaptively change the expression of social behavior
according to previous experience and to social context, is a key ecological performance trait …
according to previous experience and to social context, is a key ecological performance trait …
Social cognition
RM Seyfarth, DL Cheney - Animal Behaviour, 2015 - Elsevier
Highlights•Social cognition in animals relies on a suite of increasingly complex skills.•These
skills are targets of selection.•They reflect the selective pressures acting on individuals in …
skills are targets of selection.•They reflect the selective pressures acting on individuals in …
Brain size affects female but not male survival under predation threat
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 …
about how ecological species interactions impact the evolution of brain size. Using guppies …
A larger brain confers a benefit in a spatial mate search learning task in male guppies
Brain size varies dramatically among vertebrates, and selection for increased cognitive
abilities is thought to be the key force underlying the evolution of a large brain. Indeed …
abilities is thought to be the key force underlying the evolution of a large brain. Indeed …
Predation pressure shapes brain anatomy in the wild
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 …
accumulating that predatory interactions are crucially important for this diversity. To test this …
Rearing-group size determines social competence and brain structure in a cooperatively breeding cichlid
S Fischer, M Bessert-Nettelbeck… - The American …, 2015 - journals.uchicago.edu
Social animals can greatly benefit from well-developed social skills. Because the frequency
and diversity of social interactions often increase with the size of social groups, the benefits …
and diversity of social interactions often increase with the size of social groups, the benefits …
Artificial selection on relative brain size reveals a positive genetic correlation between brain size and proactive personality in the guppy
Animal personalities range from individuals that are shy, cautious, and easily stressed (a
“reactive” personality type) to individuals that are bold, innovative, and quick to learn novel …
“reactive” personality type) to individuals that are bold, innovative, and quick to learn novel …
Seasonality and brain size are negatively associated in frogs: evidence for the expensive brain framework
Y Luo, MJ Zhong, Y Huang, F Li, WB Liao… - Scientific reports, 2017 - nature.com
The challenges of seasonal environments are thought to contribute to brain evolution, but in
which way is debated. According to the Cognitive Buffer Hypothesis (CBH) brain size should …
which way is debated. According to the Cognitive Buffer Hypothesis (CBH) brain size should …