Coated nuts as an enrichment device to elicit tool use in tufted capuchins (Cebus apella)
Identifieur interne : 00B990 ( Main/Exploration ); précédent : 00B989; suivant : 00B991Coated nuts as an enrichment device to elicit tool use in tufted capuchins (Cebus apella)
Auteurs : Elisabetta Visalberghi [Italie] ; Augusto F. Vitale [États-Unis]Source :
- Zoo Biology [ 0733-3188 ] ; 1990.
English descriptors
- KwdEn :
- Adult males, Artificial termite mound, Boesch, Captive chimpanzees, Capuchin, Capuchin monkeys, Cebus, Cebus apella, Cebus upella, Cebus upellu, Chimpanzee, Coating nuts, Comparative psychology, Different combinations, Enrichment device, Enrichment devices, Hard substrates, Hardness, Juglans regiu, Mohr federhaff, More time, Natural hammers, Primates, Relative hardness, Same species, Simple technique, Tufted capuchins, Uncoated, Uncoated ones, Uncoated walnuts, University press, Visalberghi, Walnut, Washington state university, Wild chimpanzees.
- Teeft :
- Adult males, Artificial termite mound, Boesch, Captive chimpanzees, Capuchin, Capuchin monkeys, Cebus, Cebus apella, Cebus upella, Cebus upellu, Chimpanzee, Coating nuts, Comparative psychology, Different combinations, Enrichment device, Enrichment devices, Hard substrates, Hardness, Juglans regiu, Mohr federhaff, More time, Natural hammers, Primates, Relative hardness, Same species, Simple technique, Tufted capuchins, Uncoated, Uncoated ones, Uncoated walnuts, University press, Visalberghi, Walnut, Washington state university, Wild chimpanzees.
Abstract
The present paper describes a simple technique that hardens the shell of nuts and makes the use of a tool to crack them open more compelling. Walnuts were coated with a dough of sawdust and nontoxic white glue in different combinations; they were tested for hardness by using machines normally used to test different kinds of wood. Data on relative hardness for uncoated walnuts and walnuts coated with dough of two different combinations are presented. The coated walnuts were significantly harder to break than the uncoated ones, whereas no significant difference was found when comparing the hardness of two types of coated walnuts. Furthermore, observations on a captive group of tufted capuchins (Cebus apella) are described. The monkeys needed significantly more time to break open the coated walnuts. Early results show that coated walnuts may favor acquistion of tool use skills in a juvenile capuchin.
Url:
DOI: 10.1002/zoo.1430090108
Affiliations:
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Vitale</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><placeName><region type="state">Washington (État)</region></placeName><wicri:cityArea>Washington State University, Department of Psychology, Pullman</wicri:cityArea></affiliation><affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Zoo Biology</title><title level="j" type="alt">ZOO BIOLOGY</title><idno type="ISSN">0733-3188</idno><idno type="eISSN">1098-2361</idno><imprint><biblScope unit="vol">9</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="65">65</biblScope><biblScope unit="page" to="71">71</biblScope><biblScope unit="page-count">7</biblScope><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>New York</pubPlace><date type="published" when="1990">1990</date></imprint><idno type="ISSN">0733-3188</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0733-3188</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult males</term><term>Artificial termite mound</term><term>Boesch</term><term>Captive chimpanzees</term><term>Capuchin</term><term>Capuchin monkeys</term><term>Cebus</term><term>Cebus apella</term><term>Cebus upella</term><term>Cebus upellu</term><term>Chimpanzee</term><term>Coating nuts</term><term>Comparative psychology</term><term>Different combinations</term><term>Enrichment device</term><term>Enrichment devices</term><term>Hard substrates</term><term>Hardness</term><term>Juglans regiu</term><term>Mohr federhaff</term><term>More time</term><term>Natural hammers</term><term>Primates</term><term>Relative hardness</term><term>Same species</term><term>Simple technique</term><term>Tufted capuchins</term><term>Uncoated</term><term>Uncoated ones</term><term>Uncoated walnuts</term><term>University press</term><term>Visalberghi</term><term>Walnut</term><term>Washington state university</term><term>Wild chimpanzees</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Adult males</term><term>Artificial termite mound</term><term>Boesch</term><term>Captive chimpanzees</term><term>Capuchin</term><term>Capuchin monkeys</term><term>Cebus</term><term>Cebus apella</term><term>Cebus upella</term><term>Cebus upellu</term><term>Chimpanzee</term><term>Coating nuts</term><term>Comparative psychology</term><term>Different combinations</term><term>Enrichment device</term><term>Enrichment devices</term><term>Hard substrates</term><term>Hardness</term><term>Juglans regiu</term><term>Mohr federhaff</term><term>More time</term><term>Natural hammers</term><term>Primates</term><term>Relative hardness</term><term>Same species</term><term>Simple technique</term><term>Tufted capuchins</term><term>Uncoated</term><term>Uncoated ones</term><term>Uncoated walnuts</term><term>University press</term><term>Visalberghi</term><term>Walnut</term><term>Washington state university</term><term>Wild chimpanzees</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The present paper describes a simple technique that hardens the shell of nuts and makes the use of a tool to crack them open more compelling. Walnuts were coated with a dough of sawdust and nontoxic white glue in different combinations; they were tested for hardness by using machines normally used to test different kinds of wood. Data on relative hardness for uncoated walnuts and walnuts coated with dough of two different combinations are presented. The coated walnuts were significantly harder to break than the uncoated ones, whereas no significant difference was found when comparing the hardness of two types of coated walnuts. Furthermore, observations on a captive group of tufted capuchins (Cebus apella) are described. The monkeys needed significantly more time to break open the coated walnuts. Early results show that coated walnuts may favor acquistion of tool use skills in a juvenile capuchin.</div></front></TEI><affiliations><list><country><li>Italie</li><li>États-Unis</li></country><region><li>Latium</li><li>Washington (État)</li></region><settlement><li>Rome</li></settlement></list><tree><country name="Italie"><region name="Latium"><name sortKey="Visalberghi, Elisabetta" sort="Visalberghi, Elisabetta" uniqKey="Visalberghi E" first="Elisabetta" last="Visalberghi">Elisabetta Visalberghi</name></region></country><country name="États-Unis"><region name="Washington (État)"><name sortKey="Vitale, Augusto F" sort="Vitale, Augusto F" uniqKey="Vitale A" first="Augusto F." last="Vitale">Augusto F. Vitale</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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