Detectability of the European red squirrel (Sciurus vulgaris) in a Mediterranean area
- 154 Downloads
Detectability of the European red squirrel (Sciurus vulgaris) has rarely been investigated in Mediterranean forests. In this study we used occupancy models to investigate detectability in relation to habitat types by squirrels, in a mosaic of different forests types, in a hilly area of Central Italy. The distribution of the target species was investigated by using hair tubes. Overall, there was a prevalence of hair tubes used by squirrels in mixed conifers and deciduous forests and in young deciduous forests than in coniferous forests. Our preliminary study shows that habitat type may influence the probability of red squirrel detection rather than the species presence; therefore, future studies should take this differential detectability into account either by applying occupancy models or by adjusting sampling effort accordingly.
KeywordsSciurus Central Italy Occupancy models Habitat use
Thanks to Pietro Politi, Diego Mantero and the park wardens of the Riserva Naturale Regionale Selva del Lamone.
- Burnham KP, Anderson (2002) Model selection and multimodel inference. Springer, New York, p 236Google Scholar
- MacKenzie DI, Nichols JD, Royle JA, Pollock KH, Bailey LL, Hines JE (2006) Occupancy Estimation and Modeling–Inferring Patterns andDynamics of Species Occurrence. Elsevier, anDiegoGoogle Scholar
- Teerink BJ (1991) Hair of west-European mammals. Atlas and identification keys. Cambridge University Press, CambridgeGoogle Scholar
- Wauters LA, Dhondt AA (1987) Activity budget and foraging behavior of the red squirrel (Sciurus vulgaris, Linnaeus, 1758) in a coniferous habitat. Zeitschrift fur Saugetierkunde 52:341–353Google Scholar
- Wauters LA, Martinoli A (2008) Sciurus vulgaris Linnaeus 1758. In: Amori G, Contoli L, Nappi A (eds) Fauna d’Italia mammalia II erinaceomorpha, soricomorpha, lagomorpha, rodentia vol XLIV. Calderini de Il Sole 24 Ore, Milano, pp 349–360Google Scholar