Morpho-metric analysis of the insular and mainland Rattus in Tunisia
The genus Rattus is widely distributed in Tunisia. Rattus rattus and Rattus norvégiens coexist in continental areas, and only the black rat is present on islands. In the present work, we examined morpho-metric skull variations between continental and islands populations, a population of the Norway r...
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| Veröffentlicht in: | Biológia 2017-08, Vol.72 (8), p.927-934 |
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| creator | Ibrahim, Aymen Ben Salem, Imed Ben Chetoui, M’barek Nouira, Saïd |
| description | The genus
Rattus
is widely distributed in Tunisia.
Rattus rattus
and
Rattus norvégiens
coexist in continental areas, and only the black rat is present on islands. In the present work, we examined morpho-metric skull variations between continental and islands populations, a population of the Norway rat is used as comparative reference regarding the importance of variation. The influence of the environmental conditions of the Tunisian islands on skull dimensions was determined. The results show that the skull size of island specimens is larger than skulls from specimens in continental areas and even bigger for some mandibular parameters than the Norway rat. The morphological difference is driven by ecological factors such as lack of competition and the low prédation pressure and the nature of trophic resources rich in calcium, which might help increase the size of skulls of island
Rattus
. This difference seems to be a trait evolving faster in comparison with
R. norvegicus
. |
| doi_str_mv | 10.1515/biolog-2017-0093 |
| format | Article |
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Rattus
is widely distributed in Tunisia.
Rattus rattus
and
Rattus norvégiens
coexist in continental areas, and only the black rat is present on islands. In the present work, we examined morpho-metric skull variations between continental and islands populations, a population of the Norway rat is used as comparative reference regarding the importance of variation. The influence of the environmental conditions of the Tunisian islands on skull dimensions was determined. The results show that the skull size of island specimens is larger than skulls from specimens in continental areas and even bigger for some mandibular parameters than the Norway rat. The morphological difference is driven by ecological factors such as lack of competition and the low prédation pressure and the nature of trophic resources rich in calcium, which might help increase the size of skulls of island
Rattus
. This difference seems to be a trait evolving faster in comparison with
R. norvegicus
.</description><identifier>ISSN: 0006-3088</identifier><identifier>EISSN: 1336-9563</identifier><identifier>DOI: 10.1515/biolog-2017-0093</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Calcium ; Cell Biology ; Environmental conditions ; Islands ; Life Sciences ; Mandible ; Microbiology ; morpho-metrics ; Plant Sciences ; Predation ; Rattus ; Rattus norvegicus ; Rattus rattus ; Skull ; skulls ; Tunisia ; Zoology</subject><ispartof>Biológia, 2017-08, Vol.72 (8), p.927-934</ispartof><rights>Slovak Academy of Sciences 2017</rights><rights>2017 Institute of Zoology, Slovak Academy of Sciences</rights><rights>Copyright Springer Nature B.V. 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c396t-8494d8bd462289f1fdcb3276b56d0af2245448cd478bc55b333fb64fe55521b83</citedby><cites>FETCH-LOGICAL-c396t-8494d8bd462289f1fdcb3276b56d0af2245448cd478bc55b333fb64fe55521b83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1515/biolog-2017-0093$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1515/biolog-2017-0093$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,778,782,27907,27908,41471,42540,51302</link.rule.ids></links><search><creatorcontrib>Ibrahim, Aymen Ben</creatorcontrib><creatorcontrib>Salem, Imed Ben</creatorcontrib><creatorcontrib>Chetoui, M’barek</creatorcontrib><creatorcontrib>Nouira, Saïd</creatorcontrib><title>Morpho-metric analysis of the insular and mainland Rattus in Tunisia</title><title>Biológia</title><addtitle>Biologia</addtitle><description>The genus
Rattus
is widely distributed in Tunisia.
Rattus rattus
and
Rattus norvégiens
coexist in continental areas, and only the black rat is present on islands. In the present work, we examined morpho-metric skull variations between continental and islands populations, a population of the Norway rat is used as comparative reference regarding the importance of variation. The influence of the environmental conditions of the Tunisian islands on skull dimensions was determined. The results show that the skull size of island specimens is larger than skulls from specimens in continental areas and even bigger for some mandibular parameters than the Norway rat. The morphological difference is driven by ecological factors such as lack of competition and the low prédation pressure and the nature of trophic resources rich in calcium, which might help increase the size of skulls of island
Rattus
. This difference seems to be a trait evolving faster in comparison with
R. norvegicus
.</description><subject>Calcium</subject><subject>Cell Biology</subject><subject>Environmental conditions</subject><subject>Islands</subject><subject>Life Sciences</subject><subject>Mandible</subject><subject>Microbiology</subject><subject>morpho-metrics</subject><subject>Plant Sciences</subject><subject>Predation</subject><subject>Rattus</subject><subject>Rattus norvegicus</subject><subject>Rattus rattus</subject><subject>Skull</subject><subject>skulls</subject><subject>Tunisia</subject><subject>Zoology</subject><issn>0006-3088</issn><issn>1336-9563</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqNUE1LxDAQDaLg-nH3WPAczXfSiyDrJ6wIsp5D2ia7WbrNmrTI_ntTKnhSPAwzzLz3ZuYBcIHRFeaYX1c-tGEFCcISIlTSAzDDlApYckEPwQwhJCBFSh2Dk5Q2CDHJEZ6Bu5cQd-sAt7aPvi5MZ9p98qkIrujXtvBdGloTc78ptsZ37Vi8mb4fUp4Vy6HzyZszcORMm-z5dz4F7w_3y_kTXLw-Ps9vF7CmpeihYiVrVNUwQYgqHXZNXVEiRcVFg4wjhHHGVN0wqaqa84pS6irBnOWcE1wpegouJ91dDB-DTb3ehCHmk5MmFCOGqczxFwoLqSQpCckoNKHqGFKK1uld9FsT9xojPTqqJ0f16KgeHc2Um4nyadrexsau4rDPxY_-b1SZ_yUyC-BJIOVd3eo_TPoFtX-N3A</recordid><startdate>20170801</startdate><enddate>20170801</enddate><creator>Ibrahim, Aymen Ben</creator><creator>Salem, Imed Ben</creator><creator>Chetoui, M’barek</creator><creator>Nouira, Saïd</creator><general>Springer International Publishing</general><general>De Gruyter</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QR</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7T7</scope><scope>7TK</scope><scope>7TM</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>RC3</scope></search><sort><creationdate>20170801</creationdate><title>Morpho-metric analysis of the insular and mainland Rattus in Tunisia</title><author>Ibrahim, Aymen Ben ; 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Rattus
is widely distributed in Tunisia.
Rattus rattus
and
Rattus norvégiens
coexist in continental areas, and only the black rat is present on islands. In the present work, we examined morpho-metric skull variations between continental and islands populations, a population of the Norway rat is used as comparative reference regarding the importance of variation. The influence of the environmental conditions of the Tunisian islands on skull dimensions was determined. The results show that the skull size of island specimens is larger than skulls from specimens in continental areas and even bigger for some mandibular parameters than the Norway rat. The morphological difference is driven by ecological factors such as lack of competition and the low prédation pressure and the nature of trophic resources rich in calcium, which might help increase the size of skulls of island
Rattus
. This difference seems to be a trait evolving faster in comparison with
R. norvegicus
.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1515/biolog-2017-0093</doi><tpages>8</tpages></addata></record> |
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| subjects | Calcium Cell Biology Environmental conditions Islands Life Sciences Mandible Microbiology morpho-metrics Plant Sciences Predation Rattus Rattus norvegicus Rattus rattus Skull skulls Tunisia Zoology |
| title | Morpho-metric analysis of the insular and mainland Rattus in Tunisia |
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