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While most studies have focused on vertebrates, a growing body of research demonstrates that also insects such as honeybees possess basic quantitative abilities that might aid them in finding profitable flower patches. However, it remains unclear if for insects, quantity is a salient feature relative to other stimulus dimensions, or if it is only used as a \u201clast resort\u201d strategy in case other stimulus dimensions are inconclusive. Here, we tested the stingless bee <jats:italic>Trigona fuscipennis<\/jats:italic>, a species representative of a vastly understudied group of tropical pollinators, in a quantity discrimination task. In four experiments, we trained wild, free-flying bees on stimuli that depicted either one or four elements. Subsequently, bees were confronted with a choice between stimuli that matched the training stimulus either in terms of quantity or another stimulus dimension. We found that bees were able to discriminate between the two quantities, but performance differed depending on which quantity was rewarded. Furthermore, quantity was more salient than was shape. However, quantity did not measurably influence the bees' decisions when contrasted with color or surface area. Our results demonstrate that just as honeybees, small-brained stingless bees also possess basic quantitative abilities. Moreover, invertebrate pollinators seem to utilize quantity not only as \"last resort\" but as a salient stimulus dimension. Our study contributes to the growing body of knowledge on quantitative cognition in invertebrate species and adds to our understanding of the evolution of numerical cognition.<\/jats:p>","DOI":"10.1007\/s10071-021-01581-6","type":"journal-article","created":{"date-parts":[[2021,11,23]],"date-time":"2021-11-23T10:03:08Z","timestamp":1637661788000},"page":"617-629","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Does quantity matter to a stingless bee?"],"prefix":"10.1007","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8161-0828","authenticated-orcid":false,"given":"Johanna","family":"Eckert","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manuel","family":"Bohn","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Johannes","family":"Spaethe","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,11,23]]},"reference":[{"key":"1581_CR1","first-page":"183","volume":"34","author":"K Amano","year":"2000","unstructured":"Amano K, Nemoto T, Heard TA (2000) What are stingless bees, and why and how to use them as crop pollinators? - a review. 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