Search results for "Mammal fauna"
showing 3 items of 3 documents
Effect of simulated faunal impoverishment and mixture on the ecological structure of modern mammal faunas: Implications for the reconstruction of Mio…
2011
15 pages; International audience; The strong link between environment and the ecological diversity of communities is often used for drawing palaeoenvironmental inferences from fossil assemblages. Here we focus on the reliability of fossil samples in comparison to original communities when inferring palaeoenvironments from the ecological diversity of fossil mammal faunas. Taphonomic processes and sampling techniques generally introduce two kinds of biases in fossil samples: 1) the directional impoverishment of communities, i.e. the absence of some specific categories of bones, individuals or species; and 2) the mixture of several communities, temporally (timeaveraging) and/or spatially (spac…
Osgillazioni eustatiche, biocronologia dei depositi continentali quaternari e neotettonica nella Sicilia nord-occidentale (penisola di San Vito lo Ca…
1999
Vengono presentati i risultati di uno studio interdisciplinare condotto nella Penisola di San Vito lo Capo, Sicilia nord - occidentale. In questa area i terreni quaternari sono rappresentati da depositi marini e di spiaggia distribuiti a varie quote e da depositi continentali contenenti resti di vertebrati. Questi terreni si rinvengono all'interno di solchi e grotte marine, dove sono state riconosciute anche fasce a fori di litodomi, o costituiscono corpi sedimentari che giacciono sopra superfici di abrasione marina. Le associazioni a mammiferi presenti in tali terreni appartengono al complesso faunistico a Elephas falconeri del primo Pleistocene medio, al complesso a Elephas mnaidriensis d…
Le faune a mammiferi della Sicilia tra il Tardoglaciale e l’Olocene
2011
A check-list of Sicilian terrestrial mammals from Late Glacial to the Holocene has been compiled and a quantitative methodology of data analysis to calculate their occurrence and extinction rates has been adopted, in order to synthesize the temporal turnover of mammal species occurred during the last 17,5 ky. In such interval Sicily, probably passed from a fully connection (via a temporary land bridge generated by eustatic change of sea level) with Southern Calabria to the present isolation phase. To better focus the faunal turnover, this temporal interval has been subdivided into three phases: Late Glacial, ancient and recent Holocene. 28 Mammal taxa were recorded: 17 in the Late Glacial, …