ArticleAnimal cognition2023
Slowly walking down to the more food: relative quantity discrimination in African spurred tortoises (Centrochelys sulcata).
Article in Animal cognition, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- First Evidence of Diverse Inhibitory Control Abilities in Pre- and Post-Metamorphic Salamanders.Integrative zoology · 2026Article
- Assessing quantity combination and dissociation in giraffes.Scientific reports · 2026Article
- Group size affects spontaneous quantity discrimination performance in wild Western Australian magpies (Gymnorhina tibicen dorsalis).Animal cognition · 2025Article
- Cold-blooded culture? Assessing cultural behaviour in reptiles and its potential conservation implications.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- Investigating the relationship between physical cognitive tasks and a social cognitive task in a wild bird.Animal cognition · 2024Article
- Trained quantity discrimination in invasive red-eared slider and a comparison with the native stripe-necked turtle.Animal cognition · 2024Article
- Response to intruder number is related to spontaneous quantity discrimination performance in a wild bird.Behavioral ecology : official journal of the International Society for Behavioral EcologyArticle
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Authors and funding
3 authors.
Funding
Abstract
Quantity discrimination, is thought to be highly adaptive as it allows an organism to select greater amounts of food or larger social groups. In contrast to mammals, the processes underlying this ability are not as well understood in reptiles. This study examined the effects of ratio and number size on relative quantity discrimination in African spurred tortoises (Centrochelys sulcata). To assess these effects, tortoises were presented with trays containing favored food pieces in all possible number combinations between 1 and 7. The tortoises had to approach the tray they perceived as having the larger quantity. If correct, they received one piece of food as reinforcement. The results revealed that relative quantity discrimination was influenced by the ratio between the numbers of pieces, with performance improving as the ratio between the numbers increased. This finding suggests that the approximate number system or analogue magnitude estimation may control their behavior. However, as the number size increased, their performance declined, also suggesting that the approximate number system alone could not explain the present results.
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