Diversity and similarity of trophic system "Barn Owl - terrestrial mammals" in the volcanic districts of Latium (Italy) / Diversità ed affinità dei sistemi trofici " em>Tyto alba /em> - mammiferi terragnoli" nei comprensori vulcanici del Lazio

Abstract Bony remains of about ten thousands small terrestrial mammals preyed by Barn Owl in six volcanic districts of Latium were examined and relevant biocoenotic parameters (such as biotic diversity, thermoxerophily index, Renkonen's and Faith's indexes) calculated. Diversity values exh...

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Bibliographic Details
Published inHystrix Vol. 2; no. 1
Main Authors Fiorella Aste, Longino Contoli
Format Journal Article
LanguageEnglish
Published Associazione Teriologica Italiana 01.07.1987
Subjects
Diversity
Diversità
Sistemi Trofici
Trophic Systems
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Summary:Abstract Bony remains of about ten thousands small terrestrial mammals preyed by Barn Owl in six volcanic districts of Latium were examined and relevant biocoenotic parameters (such as biotic diversity, thermoxerophily index, Renkonen's and Faith's indexes) calculated. Diversity values exhibit no apparent correlation with a number of environmental and biocoenotic parameters of non-anthropic origin - i.e.: district age, height on sea level, latitude, biocoenotic (Renkonen's) and faunistic (Faith's) affinities. Conversely, a clearly significant, negative correlation with landscape anthropization was shown, revealing the importance of man's impact in shaping functional connections in the terrestrial communities of studied region. Riassunto L'esame del sistema trofico in argomento in 6 distretti vulcanici del Lazio ha posto in evidenza che la diversità biotica è significativamente e inversamente correlata con l'antropizzazione territoriale, ma non con altri fattori ambientali di origine anantropica.
ISSN:0394-1914
1825-5272
DOI:10.4404/hystrix-2.1-3882