Behavioral Ecology and Sociobiology, Год журнала: 2019, Номер 73(3)
Опубликована: Фев. 12, 2019
Язык: Английский
Current Biology, Год журнала: 2019, Номер 29(9), С. 1498 - 1502.e3
Опубликована: Апрель 18, 2019
Язык: Английский
Процитировано
55
Animal Behaviour, Год журнала: 2020, Номер 166, С. 193 - 206
Опубликована: Июль 14, 2020
Язык: Английский
Процитировано
52
Animal Cognition, Год журнала: 2020, Номер 23(5), С. 953 - 964
Опубликована: Июнь 10, 2020
Язык: Английский
Процитировано
51
Fishes, Год журнала: 2024, Номер 9(2), С. 50 - 50
Опубликована: Янв. 27, 2024
Cognitive abilities vary within and among species, several hypotheses have been proposed to explain this variation. Two of the most prominent regarding evolution cognition link increased social habitat complexity with advanced cognitive abilities. Several studies tested predictions derived from these two hypotheses, but were rarely conducted under natural conditions wild animals. However, is particular importance if we aim fitness-relevant factors better understand cognition. The biggest hurdle assessing in find a suitable setup that easy use field conditions. Here, set out evaluate an extremely simple test ability for broad range aquatic animals their habitat. We did so by developing detour paradigm which fish had clear obstacle reach food reward. By altering difficulty task, confirmed valid groups Lake Tanganyika cichlid, Neolamprologus pulcher. Subsequently, probed specific major using difficult configuration. Specifically, variation different sizes occupying habitats varying complexity. mixed support both hope our work inspires future investigations on cichlids.
Язык: Английский
Процитировано
7
Philosophical Transactions of the Royal Society B Biological Sciences, Год журнала: 2018, Номер 373(1756), С. 20170285 - 20170285
Опубликована: Авг. 13, 2018
Natural selection can act on between-individual variation in cognitive abilities, yet evolutionary responses depend the presence of underlying genetic variation. It is, therefore, crucial to determine relative extent versus environmental control these among-individual differences traits understand their causes and potential. We investigated heritability associative learning performance a judgement bias (optimism), as well covariation, captive pedigree-bred population red junglefowl ( Gallus gallus , n > 300 chicks over 5 years). analysed discriminative reversal (two facets learning), bias, by conducting animal models disentangle from contributions. demonstrate moderate for learning, weak no optimism respectively. The two were weakly negatively correlated, consistent with hypothesized trade-offs underpinning individual styles. Reversal, but not performance, was associated bias; less optimistic individuals reversed previously learnt association faster. Together results indicate that contributions differ among traits. While modular abilities predict lack common different traits, further investigation is required fully ascertain degree covariation between broader range any shared control. This article part theme issue ‘Causes consequences abilities’.
Язык: Английский
Процитировано
55
Behavioral Ecology and Sociobiology, Год журнала: 2018, Номер 72(10)
Опубликована: Сен. 26, 2018
Cognition is fundamental to animals' lives and an important source of phenotypic variation. Nevertheless, research on individual variation in animal cognition still limited. Further, although cognitive abilities have been suggested be linked personality (i.e., consistent behavioral differences among individuals), few studies performance across multiple tasks traits. Thus, the interplays between are unclear. We therefore investigated relationships aspect cognition, learning, personality, by exposing young adult red junglefowl (Gallus gallus) learning (discriminative, reversal, spatial learning) assays (novel arena, novel object, tonic immobility). Learning speed was not correlated tasks, discrimination did co-vary with personality. However, reversal associated exploration, age-dependent manner. More explorative chicks learned task faster than less ones, while opposite association found for females (learning could assayed males). In same we also observed a sex difference chicks, males. Our results suggest that relationship complex, as shown its task- age-dependence, encourage further investigation causality dynamics this relationship.In ancestor today's chickens, junglefowl, explored how relate both adults several assays. birds differed speed, fast learners one necessarily learn another there were no overall "smarter" birds). Exploration more complex learning: exploring but slower females, faster, compared birds. Other aspects correlate. related, can differ depending age animal.
Язык: Английский
Процитировано
53
Current Opinion in Insect Science, Год журнала: 2019, Номер 34, С. 117 - 122
Опубликована: Июнь 3, 2019
Язык: Английский
Процитировано
50
Scientific Reports, Год журнала: 2020, Номер 10(1)
Опубликована: Дек. 10, 2020
Abstract Human children show unique cognitive skills for dealing with the social world but their performance is paralleled by great apes in many tasks physical world. Recent studies suggested that members of a songbird family—corvids—also evolved complex detailed understanding full scope cognition was, until now, not existent. Furthermore, relatively little known about development. Here, we conducted first systematic, quantitative large-scale assessment and common ravens special focus on To do so, fine-tuned one most comprehensive experimental test-batteries, Primate Cognition Test Battery (PCTB), to raven features enabling also direct, comparison two ape species. Full-blown were already present at age four months subadult ravens’ appearing very similar adult (quantities, causality) (social learning, communication, theory mind). These unprecedented findings strengthen recent assessments general intelligence, aid growing evidence lack specific cortical architecture does hinder advanced skills. Difficulties certain scales further emphasize quest develop comparative test batteries tap into true species rather than human skills, suggest socialization individuals may play crucial role. We conclude pay more attention impact personality output, currently neglected topic Animal Cognition—the linkage between ontogeny performance.
Язык: Английский
Процитировано
49
Journal of Animal Ecology, Год журнала: 2020, Номер 89(5), С. 1153 - 1164
Опубликована: Фев. 19, 2020
Abstract To make adaptive foraging decisions, predators need to gather information about the profitability of prey. As well as learning from prey encounters, recent studies show that can learn defences by observing negative experiences conspecifics. However, predator communities are complex. While heterospecifics may increase opportunities, we know little how social use varies across species. Social transmission avoidance among also has potential consequences for defended Conspicuous aposematic assumed be an easy target naïve predators, but this cost reduced if multiple single predation events. Heterospecific might further benefit prey, remains untested. Here test conspecific and heterospecific a community with wild‐caught blue tits ( Cyanistes caeruleus ) great Parus major ). We used video playback manipulate novel then compared birds’ choices in ‘a small‐scale world’ contained palatable items. expected would less likely tits. found both consumed fewer after experience demonstrator. In fact, effect was stronger Interestingly, learned more efficiently watching conspecifics, whereas similarly regardless demonstrator Together, our results indicate occurs species boundaries. This supports idea interactions reduce attacks on therefore influence selection defences.
Язык: Английский
Процитировано
48
Animal Behaviour, Год журнала: 2019, Номер 151, С. 217 - 227
Опубликована: Фев. 25, 2019
Язык: Английский
Процитировано
47