Small mammal community in a Mediterranean target area of Sicily by the data from the long-eared owl pellets

Small mammal community in a Mediterranean target area of Sicily by the data from the long-eared owl pellets

Siracusa A.M., Santitto A., Camarda D., D’Urso V.

P. 169-179

The present study was carried out through analysis of bone remains in 1003 long-eared owl pellets of Asio otus (Strigiformes, Strigidae). The investigated area is in the Southeastern slope of Mount Etna (Sicily) outside the boundary of Etna Park. A total of eight species were found of ten species known for the whole Sicily, such as Microtus nebrodensis (Rodentia, Cricetidae), Apodemus sylvaticus, Mus domesticus, Rattus rattus, Rattus norvegicus (Rodentia, Muridae), Eliomys quercinus (Rodentia, Gliridae), Suncus etruscus and Crocidura sicula (Soricomorpha, Soricidae). The most frequent species among the total specimens found in the long-eared owl pellets was vole M. nebrodensis with a frequency of 75.24% and composed of 57.54% of a biomass in analysed habitats. The second most frequent species was A. sylvaticus with a frequency percentage of 13.23%, but participates third place in the assessed biomass (10.52% of the biomass), thereas the more masses species R. norvegicus composed of 29.29% of the biomass and with a frequency of 7.47% in the owl pellets. The high number of species found (eight species out of ten known for the Sicilian small mammal fauna), and the medium-low diversity values (Gini-Simpson = 0.41; Shannon-Weaver = 0.64) are likely to be attributed to the fragmentation of habitats and consequent ecotone effect. The high value of the Cricetidae/Muridae ratio and the low value of the trophic level index (Soricidae/Rodentia ratio) highlight a type of agricultural anthropization. The composition and structure of the studied small mammal community confirmed a consolidated medium-high level of agricultural anthropization in a landscape characterized by a mosaic of rural and natural environments. However, the importance of these agro-ecosystems depends on the high number of small mammal species present, including some of conservation interest.DOI: 10.15298/rusjtheriol.21.2.08

Литература
  • Amarena D., Contoli L. & Cristaldi M. 1994. Coenotic structure, skull asymmetries and other morphological anomalies in small mammals near an electronuclear power plant // Hystrix. Vol.5. P.31–46.
  • Amori G. & Castiglia R. 2018. Mammal endemism in Italy: a review. Biogeographia // Journal of Integrative Biogeography. Vol.33. No.1. P.19–31.
  • Amori G., Contoli L. & Nappi A. 2008. Fauna d’Italia.Vol.44. Mammalia II: Erinaceomorpha, Soricomorpha, Lagomorpha, Rodentia. Bologna: Calderini. 754 p.
  • Aste F. & Contoli L. 1987. Diversità ed affinità dei sistemi trofici “Tyto alba” — Mammiferi terragnoli” nei comprensori vulcanici del Lazio // Hystrix. Vol.2. P.15–25.
  • Balestrieri A., Gazzola A., Formenton G. & Canova L. 2019. Long-term impact of agricultural practices on the diversity of small mammal communities: a case study based on owl pellets // Environmental Monitoring and Assesstment. Vol.191. No.12. P.724–737.
  • Benedeck A.M. & Sirbu I. 2010. Dynamics of Asio otus L., 1758 (Aves: Strigiformes) winter-spring trophic regime in western plain (Romania) // Travaux du Muséum National d’Histoire Naturelle «Grigore Antipa». Vol.53. P.479–487.
  • Bertolino S., Ghiberti E. & Perrone A. 2001. Feeding ecology of the long-eared owl (Asio otus) in northern Italy: is it a dietary specialist? // Canadian Journal Zoology. Vol.79. No.12. P.2192–2198.
  • Bezerra A.M.R., Annesi F., Aloise G., Amori G., Giustini L. & Castiglia R. 2015. Taxonomy of the Italian pine voles, Microtus savii group (Cricetidae, Arvicolinae) // Zoologica Scripta. Vol.45. No.3. P.225–236.
  • Birrer S. 2009. Synthesis of 312 studies on the diet of the long-eared owl Asio otus // Ardea. Vol.97. P.439–443.
  • Birrer S., Riegert J., Šálek M. & Zárybnická M. 2021. SpitzEine Meta-Analyse zur Nahrung europäischer Eulen — ein Vergleich zwischen Arten und Regionen // Eulen-Rundblick. No.71. P.90–93.
  • Canova L. 1989. Influence of snow cover on prey selection by long-eared owls Asio otus // Ethology, Ecology & Evolution. Vol.1. No.4. P.367–372.
  • Capizzi D. & Santini L. 2007. I roditori italiani. Ecologia, impatto sulle attività umane e sugli ecosistemi, gestione delle popolazioni. Roma: Antonio Delfino. 556 p.
  • Catalisano A. & Massa B. 1987. Considerations on the structure of the diet of the barn owl (Tyto alba) in Sicily (Italy) // Bollettino di Zoologia. Vol.54. P.69–73.
  • Cecere F. & Vicini G. 2000. Micrommals in the diet of the long eared owl (Asio otus) at the W.W.F.’s Oasi San Giuliano (Matera, South Italy) // Hystrix. Vol.11. No.2. P.47–53.
  • Cecere J.G., Bombino S. & Santangeli A. 2013. Winter diet of long-eared owl Asio otus in a Mediterranean fragmented farmland // Wilson Journal of Ornithology. Vol.125. No.3. P.655–658.
  • Chaline J., Baudvin H., Jammot D. & Saint Giron M.C. 1974. Les proies des rapaces. Paris: Doin. 141 p.
  • Contoli L. 1975. Micro-mammals and environment in Central Italy: data from Tyto alba (Scop.) pellets // Bollettino di Zoologia. Vol.42. P.223–229.
  • Contoli L. 1980. Borre di Strigiformi e ricerca teriologica in Italia // Natura e Montagna. Vol.3. P.73–94.
  • Contoli L. 1981. Ruolo dei micromammiferi nella nicchia trofica del Barbagianni Tyto alba nell’Italia centro-meridionale // Avocetta. Vol.5. P.49–64.
  • Contoli L. 1991. Spunti per interpretazioni evolutive nella bio-geografia delle comunità grazie a studi su sistemi trofici // Biogeographia. Vol.15. P.49–56.
  • Contoli L. 1995. Sulla diversità biotica come manifestazione ecologica dell’entropia // Atti e Memorie dell’Ente Fauna Siciliana. Vol.2. P.23–86.
  • De La Pen᷈a N.M., Butet A., Delettre Y., Paillat G., Morant P., Le Du L. & Burel F. 2003. Response of the small mammal community to changes in western French agricultural landscapes // Landscape Ecology. Vol.18. No.3. P.265–278.
  • Di Palma M.G. & Massa B. 1981. Contributo metodologico per lo studio dell’alimentazione dei Rapaci // Atti I Convegno italiano di Ornitologia. Aulla. P.69–76.
  • Galeotti P. & Canova L. 1994. Winter diet of long-eared owls in the Po Valley (northern Italy) // Journal of Raptor Research. Vol.28. No.4. P.265–268.
  • Heisler L.M., Somers C.M. & Poulin R.G. 2016. Owl pellets: a more effective alternative to conventional trapping for broad-scale studies of small mammal communities // Methods in Ecology and Evolution. Vol.7. No.1. P.96–103.
  • Kontogeorgos I., Kiamos N., Montiel-Ruiz P., Georgopoulou E., Mylonas M. & Xirouchakis S.M. 2019. Feeding ecology and prey selection by wintering long-eared owls Asio otus in Mediterranean agrosystems // Ornithological Science. Vol.18. No.1. P.95–110.
  • Lesiński G., Romanowski J. & Budek S. 2016. Winter diet of the long-eared owl Asio otus in various habitats of central and north-eastern Poland // Animal Science, Annals of Warsaw University of Life Sciences–SGGW. Vol.55. No.1. P.81–88.
  • Loy A. & Boitani B. 1984. Microhabitat strutturale di due specie di Roditori, Apodemus sylvaticus e Mus musculus in ambienti di macchia mediterranea // Ricerche Biologia della Selvaggina, Atti I Seminario Associazione Teriologica Romana. Vol.9. P.143–160.
  • Loy A., Aloise G., Ancillotto L., Angelici F.M., Bertolino S., Capizzi D., Castiglia R., Colangelo P., Contoli L., Cozzi B., Fontaneto D., Lapini L., Maio N., Monaco A., Mori E., Nappi A., Podestà M., Russo D., Sarà M., Scandura M. & Amori G. 2019. Mammals of Italy: an annotated checklist // Hystrix. Vol.30. No.2. P.87–106.
  • Magurran A.E. 1988. Ecological Diversity and its Measurement. Princeton: Princeton University Press. 179 p.
  • Martelli C. & Fastelli P. 2013. Svernamento e dieta del gufo comune Asio otus nella città di Grosseto // Gli Uccelli d’Italia. No.38. P.85–91.
  • Massa B. & La Mantia T. 2007. Forestry, pasture, agriculture and fauna correlated to recent changes in Sicily // Forest@. Vol.4. P.418–438.
  • Mazzotti S. & Tiozzo E. 2013. Impatto dei cambiamenti climatici sulle comunità di micromammiferi (Mammalia: Soricomorpha, Rodentia) del Delta del Po // Quaderno del Museo di Storia Naturale di Ferrara. Vol.1. P.111–117.
  • Mori E. & Bertolino S. 2015. Feeding ecology of long-eared owls in winter: an urban perspective // Bird Study. Vol.62. No.2. P.257–261.
  • Pirovano A., Rubolini D., Brambilla S. & Ferrari N. 2000. Winter diet of urban roosting long-eared owls Asio otus in northern Italy: the importance of the brown rat Rattus norvegicus // Bird Study. Vol.47. No.2. P.242–244.
  • Riegert J., Lövy M. & Fainova D. 2009. Diet composition of common kestrels Falco tinnunculus and long-eared owls Asio otus coexisting in an urban environment // Ornis Fennica. No.86. P.1–8.
  • Rondinini C., Battistoni A., Peronace A. & Teofili V. 2013. Lista Rossa IUCN de Vertebrati Italiani. Roma: Comitato Italiano IUCN e Ministero dell’Ambiente e della Tutela del Territorio e del Mare. 54 p.
  • Sanz A.S. & Penades G.C. 2002. Aproximació al coneixement dels micromamífers i lagomorfs de la Serra de la Solana (La Vall d’Albaida) // Dugastella. Vol.3. P.37–45.
  • Sarà M. & Casamento G. 1993. Analisi dei popolamenti di topo selvatico (Apodemus sylvaticus) in un querceto mediterraneo // Hystrix. Vol.4. P.17–27.
  • Seçkin S. & Coșkun Y. 2006. Mammalian remains in the pellets of long-eared owls (Asio otus) in Diyarbakir Province // Turkish Journal of Zoology. Vol.30. P.271–278.
  • Sergio F., Marchesi L.& Pedrini P. 2008. Density, diet and productivity of long-eared owls Asio otus in the Italian Alps: the importance of Microtus voles // Bird Study. Vol.55. P.321–328.
  • Siracusa A.M., Sarà M., La Mantia T. & Cairone A. 1996. Alimentazione del Gufo comune (Asio otus) in Sicilia // Il Naturalista siciliano. Vol.20. P.313–320.
  • Siracusa A.M., Musumeci E. & D’Urso V. 2015. New knowledge on diet and monitoring of a roost of the long-eared owl, Asio otus (Linnaeus, 1758) (Strigiformes Strigidae) on Mount Etna, Sicily // Biodiversity Journal. Vol.6. No.1. P.263–270.
  • Szpunar G., Aloise G., Mazzotti S., Nieder L. & Cristaldi M. 2008. Effects of global climate change on terrestrial small mammal communities in Italy // Fresenius Environmental Bulletin. Vol.17. No.9. P.1526–1533.
  • Tattersall F.H., Macdonald D.W., Hart B.J., Johnson P., Manley W. & Reber R. 2002. Is habitat linearity important for small mammal communities on farmland? // Journal of Applied Ecology. Vol.39. P.643–652.
  • Tome D. 2009. Changes in the diet of long-eared owl Asio otus: seasonal patterns of dependence on vole abundance // Ardeola. Vol.56. No.1. P.49–56.
  • Toschi A. & Lanza B. 1959. Fauna d’Italia. Vol.4. Mammalia. Generalità, Insectivora, Chiroptera. Fauna d’Italia. Bologna: Calderini. 496 p.
  • Toschi A. 1965. Fauna d’Italia. Vol.7. Mammalia. Lagomorpha, Rodentia, Carnivora, Ungulata, Cetacea. Bologna: Calderini. 1659 p.
  • Vicariotto M. 2018. Analisi dell’alimentazione di Asio otus L., 1758 a Sandrigo (NE Italia) // Studi e Ricerche — Associazione Amici del Museo — Museo Civico “G. Zannato” Montecchio Maggiore (Vicenza). Vol.25. P.37–45.