Morphometry and morphology of <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italy, Sardinia and Sicily, with Fourier descriptors approach: first results / Morfometria e morfologia di <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italia, Sardegna e Sicilia, con il metodo dei descrittori di Fourier: primi dati
<strong>Abstract</strong> A shape analysis through Fourier descriptors was performed on left mandibles of <em>Crocidura</em> obtained by Barn Owl pellets from peninsular Italy (Emilia and Liguria districts), Sardinia and Sicily. Thanks to some...
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| Format: | Article |
| Language: | English |
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Associazione Teriologica Italiana
1989-07-01
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| Series: | Hystrix, the Italian Journal of Mammalogy |
| Subjects: | |
| Online Access: | http://www.italian-journal-of-mammalogy.it/article/view/3892 |
| _version_ | 1828358639506685952 |
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| author | Longino Contoli Barbara Benincasa-Stagni Anna Rosa Marenzi |
| author_facet | Longino Contoli Barbara Benincasa-Stagni Anna Rosa Marenzi |
| author_sort | Longino Contoli |
| collection | DOAJ |
| description | <strong>Abstract</strong> A shape analysis through Fourier descriptors was performed on left mandibles of <em>Crocidura</em> obtained by Barn Owl pellets from peninsular Italy (Emilia and Liguria districts), Sardinia and Sicily. Thanks to some classical analysis (morphometrical mono- and bidimensional diagrams, morphological analysis) and to biogeographical and genetical evidences, the samples of Sardinia, the smaller specimens of Liguria and Emilia and the bigger ones of Emilia were respectively classified, as a working hypothesis, as <em>C. russula</em>, <em>C. suaveolens</em> and <em>C. leucodon</em>. The "misclassification rate" essay was very low, confirming the reliability of the discrimination rule employed. The sicilian samples, showing an unimodal pattern with respect to all the classical morphometrical characters examined, were then tested against the descriptors of <em>C. russula</em>, <em>C. suaveolens</em> and <em>C. leucodon</em>. The specimens were assigned to all the above species, with a quite even distribution. On the other hand, the hypothesis of equality of two mean vectors for sicilian samples with <em>C. russula</em> or <em>C. suaveolens</em> or <em>C. leucodon</em>, tested by Hotelling's T&#178; test, was rejected at 1% significance level. Owing to the fact that the above results seemed quite unexpected in the light of overall bio- geographical knowledges on <em>Crocidura</em>, the "shape analysis" procedure was repeated, by adding a new "species" for the sicilian samples. The "misclassification rate" essay was very encouraging in the sense of the presence, in Sicily, of a morphological "species", differing from <em>C. russula</em>, <em>C. suaveolens</em> and <em>C. leucodon</em>, possibly to be referred to <em>C. sicula</em> Miller 1901. The euristic value of such up to now first results is discussed. <strong>Riassunto</strong> L'analisi della forma e l'analisi morfometrica di esemplari di <em>Crocidura</em> sp. pl. conducono a considerare probabile la presenza, in Sicilia, di una forma differente da <em>C. russula</em>, <em>C. suaveolens</em>, <em>C. leucodon</em>, la cui possibile coincidenza con <em>C. sicula</em> Miller 1901, è comunque ancora da discutere. Circa la Liguria occidentale è stata confermata la presenza di <em>C. suaveolens</em>. In Sardegna, si conferma la presenza di una specie, da riferire a <em>C. russula</em>. In Emilia, viene avallata l'ipotesi della presenza di due specie: <em>C. leucodon</em> e <em>C. suaveolens</em>. |
| first_indexed | 2024-04-14T03:31:45Z |
| format | Article |
| id | doaj.art-43d5b8c863dc4f729b383c3c39396e0a |
| institution | Directory Open Access Journal |
| issn | 0394-1914 1825-5272 |
| language | English |
| last_indexed | 2024-04-14T03:31:45Z |
| publishDate | 1989-07-01 |
| publisher | Associazione Teriologica Italiana |
| record_format | Article |
| series | Hystrix, the Italian Journal of Mammalogy |
| spelling | doaj.art-43d5b8c863dc4f729b383c3c39396e0a2022-12-22T02:14:54ZengAssociazione Teriologica ItalianaHystrix, the Italian Journal of Mammalogy0394-19141825-52721989-07-011110.4404/hystrix-1.1-3892Morphometry and morphology of <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italy, Sardinia and Sicily, with Fourier descriptors approach: first results / Morfometria e morfologia di <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italia, Sardegna e Sicilia, con il metodo dei descrittori di Fourier: primi datiLongino ContoliBarbara Benincasa-StagniAnna Rosa Marenzi<strong>Abstract</strong> A shape analysis through Fourier descriptors was performed on left mandibles of <em>Crocidura</em> obtained by Barn Owl pellets from peninsular Italy (Emilia and Liguria districts), Sardinia and Sicily. Thanks to some classical analysis (morphometrical mono- and bidimensional diagrams, morphological analysis) and to biogeographical and genetical evidences, the samples of Sardinia, the smaller specimens of Liguria and Emilia and the bigger ones of Emilia were respectively classified, as a working hypothesis, as <em>C. russula</em>, <em>C. suaveolens</em> and <em>C. leucodon</em>. The "misclassification rate" essay was very low, confirming the reliability of the discrimination rule employed. The sicilian samples, showing an unimodal pattern with respect to all the classical morphometrical characters examined, were then tested against the descriptors of <em>C. russula</em>, <em>C. suaveolens</em> and <em>C. leucodon</em>. The specimens were assigned to all the above species, with a quite even distribution. On the other hand, the hypothesis of equality of two mean vectors for sicilian samples with <em>C. russula</em> or <em>C. suaveolens</em> or <em>C. leucodon</em>, tested by Hotelling's T&#178; test, was rejected at 1% significance level. Owing to the fact that the above results seemed quite unexpected in the light of overall bio- geographical knowledges on <em>Crocidura</em>, the "shape analysis" procedure was repeated, by adding a new "species" for the sicilian samples. The "misclassification rate" essay was very encouraging in the sense of the presence, in Sicily, of a morphological "species", differing from <em>C. russula</em>, <em>C. suaveolens</em> and <em>C. leucodon</em>, possibly to be referred to <em>C. sicula</em> Miller 1901. The euristic value of such up to now first results is discussed. <strong>Riassunto</strong> L'analisi della forma e l'analisi morfometrica di esemplari di <em>Crocidura</em> sp. pl. conducono a considerare probabile la presenza, in Sicilia, di una forma differente da <em>C. russula</em>, <em>C. suaveolens</em>, <em>C. leucodon</em>, la cui possibile coincidenza con <em>C. sicula</em> Miller 1901, è comunque ancora da discutere. Circa la Liguria occidentale è stata confermata la presenza di <em>C. suaveolens</em>. In Sardegna, si conferma la presenza di una specie, da riferire a <em>C. russula</em>. In Emilia, viene avallata l'ipotesi della presenza di due specie: <em>C. leucodon</em> e <em>C. suaveolens</em>.http://www.italian-journal-of-mammalogy.it/article/view/3892Fourier descriptorsDiscriminant analysisDescrittori di FourierAnalisi discriminante |
| spellingShingle | Longino Contoli Barbara Benincasa-Stagni Anna Rosa Marenzi Morphometry and morphology of <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italy, Sardinia and Sicily, with Fourier descriptors approach: first results / Morfometria e morfologia di <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italia, Sardegna e Sicilia, con il metodo dei descrittori di Fourier: primi dati Hystrix, the Italian Journal of Mammalogy Fourier descriptors Discriminant analysis Descrittori di Fourier Analisi discriminante |
| title | Morphometry and morphology of <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italy, Sardinia and Sicily, with Fourier descriptors approach: first results / Morfometria e morfologia di <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italia, Sardegna e Sicilia, con il metodo dei descrittori di Fourier: primi dati |
| title_full | Morphometry and morphology of <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italy, Sardinia and Sicily, with Fourier descriptors approach: first results / Morfometria e morfologia di <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italia, Sardegna e Sicilia, con il metodo dei descrittori di Fourier: primi dati |
| title_fullStr | Morphometry and morphology of <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italy, Sardinia and Sicily, with Fourier descriptors approach: first results / Morfometria e morfologia di <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italia, Sardegna e Sicilia, con il metodo dei descrittori di Fourier: primi dati |
| title_full_unstemmed | Morphometry and morphology of <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italy, Sardinia and Sicily, with Fourier descriptors approach: first results / Morfometria e morfologia di <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italia, Sardegna e Sicilia, con il metodo dei descrittori di Fourier: primi dati |
| title_short | Morphometry and morphology of <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italy, Sardinia and Sicily, with Fourier descriptors approach: first results / Morfometria e morfologia di <em>Crocidura</em> Wagler 1832 (Mammalia, Soricidae) in Italia, Sardegna e Sicilia, con il metodo dei descrittori di Fourier: primi dati |
| title_sort | morphometry and morphology of lt em gt crocidura lt em gt wagler 1832 mammalia soricidae in italy sardinia and sicily with fourier descriptors approach first results morfometria e morfologia di lt em gt crocidura lt em gt wagler 1832 mammalia soricidae in italia sardegna e sicilia con il metodo dei descrittori di fourier primi dati |
| topic | Fourier descriptors Discriminant analysis Descrittori di Fourier Analisi discriminante |
| url | http://www.italian-journal-of-mammalogy.it/article/view/3892 |
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