306 research outputs found
Mammal endemism In Italy: A review
Although there are various checklists of Italian mammals, there is not yet a synthesis of those mammals
that are endemic to Italy. Therefore, we provide for the first time a detailed review on Italian mammal
endemic species including endemic taxa deserving additional studies. This review is based on the most
recent taxonomic revisions obtained using Scopus and Google Scholar databases. We also considered
the age of endemic species. Some aspects of mammalian conservation are also provided and discussed
Evidence for niche similarities in the allopatric sister species Lepus castroviejoi and Lepus corsicanus
[Aim]: Lepus castroviejoi and Lepus corsicanus are sister species with allopatric distributions that share extensive phenotypic and genetic variation. Under the framework of niche conservatism, we assessed whether these species have similar ecological niches, which could provide insights into their mode of divergence, conservation, and taxonomic status. [Location]: The distribution range of L. castroviejoi in the northern Iberian Peninsula, and that of L. corsicanus in mainland Italy and Sicily. [Methods]: We developed spatially explicit ecological models to characterize the niches of the two species by modelling them separately and together. Individual models were transferred to the territory of the sister species to explore their niche relationships. Predictions were assessed for discrimination and calibration in a cross-assessment procedure. [Results]: The model trained with L. castroviejoi was not able to predict the range of L. corsicanus, whereas the model trained with L. corsicanus was able to discriminate the L. castroviejoi distribution better than by chance alone (AUC = 0.814), although the reliability of the predictions was limited. The model trained with L. corsicanus in Italy's mainland (excluding the range in Sicily), however, discriminated L. castroviejoi presences/absences (AUC = 0.788) and accurately predicted its probability of occurrence. Furthermore, a well-calibrated model, which was able to discriminate the species distributions (L. castroviejoi, AUC = 0.828; L. corsicanus, AUC = 0.956), was obtained when the species were considered together. [Main conclusions]: Our results suggest that L. castroviejoi and L. corsicanus share extensive niche properties, which reinforces their possible conspecific status. The ecological niche of their ancestor may have resembled the present occupied niche of L. corsicanus in mainland Italy, given that this model was able to accurately predict the distribution range of both species. Finally, ecological evidence suggests that niche conservatism may explain the fragmentation in the distribution range of their ancestor, which may have been the driver of the initial stages of divergence.P.A. received a José Castillejo fellowship (2010 –2011)in Portugal awarded by the Ministerio de Ciencia e Innovación to conduct this study, and was also partly supported bythe CGL2009-11316/BOS Spanish Government and FEDER project. P.A. and J.M.-F. currently hold postdoctoral grantsfrom the Fundaçao para a Ciência e a Tecnologia (FCT),funded by Programa Operacional Potencial Humano (POPH)– Quadro de Referência Estratégico Nacional (QREN) fromthe European Social Fund and by the Portuguese Ministério da Educaçao e Ciência (SFRH/BPD/90320/2012 and SFRH/BPD/43264/2008, respectively). Financial support was partly obtained from the research project grants PTDC/BIA-EVF/111931/2009 and PTDC/BIA-EVF/115069/2009, funded by FEDER through the COMPETE program and Portuguese national funds through the FCT.Peer Reviewe
Contribution to the ecology of the Italian hare (Lepus corsicanus)
the italian hare (Lepus corsicanus) is endemic to Central-Southern Italy and Sicily, classified as vulnerable due to habitat alterations, low density and fragmented populations and ecological competition with the sympatric european hare (Lepus europaeus). Despite this status, only few and local studies have explored its ecological features. We provided some key traits of the ecological niche of the italian hare as well as its potential distribution in the italian peninsula. All data derived from genetically validated presences. We generated a habitat suitability model using maximum entropy distribution model for the italian hare and its main competitor, the european hare. the dietary habits were obtained for the italian hare with DnA metabarcoding and High-throughput Sequencing on faecal pellets. The most relevant environmental variables affecting the potential distribution of the italian hare are shared with the european hare, suggesting a potential competition. the variation
in the observed altitudinal distribution is statistically significant between the two species.The diet
of the Italian hare all year around includes 344 plant taxa accounted by 62 families. The Fagaceae, Fabaceae, Poaceae, Rosaceae and Solanaceae (counts > 20,000) represented the 90.22% of the total diet. Fabaceae (60.70%) and Fagaceae (67.47%) were the most abundant plant items occurring in the Spring/Summer and Autumn/Winter diets, respectively. the Spring/Summer diet showed richness
(N = 266) and diversity index values (Shannon: 2.329, Evenness: 0.03858, Equitability: 0.4169) higher than the Autumn/Winter diet (N = 199, Shannon: 1.818, Evenness: 0.03096, Equitability: 0.3435). Our contribution adds important information to broaden the knowledge on the environmental (spatial and trophic) requirements of the Italian hare, representing effective support for fitting management actions in conservation planning
Grotta Romanelli (Southern Italy, Apulia). Legacies and issues in excavating a key site for the Pleistocene of the Mediterranean
Grotta Romanelli, located on the Adriatic coast of southern Apulia (Italy), is considered a key site for the Mediterranean Pleistocene for its archaeological and palaeontological contents. The site, discovered in 1874, was re-evaluated only in 1900, when P. E. Stasi realised that it contained the first evidence of the Palaeolithic in Italy. Starting in 1914, G. A. Blanc led a pioneering excavation campaign, for the first-time using scientific methods applied to systematic palaeontological and stratigraphical studies. Blanc proposed a stratigraphic framework for the cave. Different dating methods (C-14 and U/Th) were used to temporally constrain the deposits. The extensive studies of the cave and its contents were mostly published in journals with limited distribution and access, until the end of the 1970s, when the site became forgotten. In 2015, with the permission of the authorities, a new excavation campaign began, led by a team from Sapienza University of Rome in collaboration with IGAG CNR and other research institutions. The research team had to deal with the consequences of more than 40 years of inactivity in the field and the combined effect of erosion and legal, as well as illegal, excavations. In this paper, we provide a database of all the information published during the first 70 years of excavations and highlight the outstanding problems and contradictions between the chronological and geomorphological evidence, the features of the faunal assemblages and the limestone artefacts
Lepus corsicanus gastro-intestinal helminths: first report
Italian hare Lepus corsicanus De Winton, 1898, is a true species living in simpatry with Lepus europaeus in mainland Italy and with Oryctolagus cuniculus in Sicily, where L. europaeus is absent. Up to date, nobody has studied the helminths of this endemic Italian Mammal. Therefore, in order to describe Italian hare gastro-intestinal helminths, gastro-intestinal tract of 29 Italian hares, coming from mainland Italy (#14) and from Sicily (#15) were collected between 1997 and 2009. Twentyfive hares were positive for at least one parasite (86 %). Six parasite species were isolated, 2 cestodes (Cittotaenia pectinata, prevalence 3 %) and Paranoplocephala sp., 3 %) and 4 nematodes (Trichostrongylus retortaeformis, 86 %, Graphidium strigosum, 14 %, Trichuris sp., 10 % and Teladorsagia circumcincta, 7 %). Both Teladorsagia circumcincta circumcincta and Teladorsagia circumcincta trifurcata morphotypes were identified. Comparison with available data regarding L. europaeus and O. cuniculus in Italy is provided. Being not T. circumcincta and Paranoplocephala sp. typical parasites of leporids, a description of the ob\uacserved specimens is given
FOSSIL LAGOMORPHA (MAMMALIA) OF ITALY: SYSTEMATICS AND BIOCHRONOLOGY
Revisions performed in the last 15 years added remarkable novelties to the taxonomy and biochronology of Italian fossil lagomorphs. Several new taxa have been erected basing on new materials and on the revision of old materials. This paper aims to illustrate the state of the art of such researches. The lagomorph diversity in the Italian Neogene and Pleistocene is quite high, accounting 9 ochotonids, 14 leporids, and 3 stem lagomorphs. Among the lagomorph taxa recorded in Italy, quite a high number are insular or continental endemics. The oldest Italian lagomorphs are the insular endemic Paludotona aff. minor, P. etruria and P. minor from the early-middle Turolian of the Tusco-Sardinia palaeobioprovince, and Prolagus apricenicus and P. imperialis from the late Turolian of the Abruzzi-Apulia palaeobioprovince. In the Italian peninsula, lagomorphs are known since the late Turolian (early Messinian) [...
Intestinal helminths of the endemic Italian hare, Lepus corsicanus (De Winton, 1898), in Sicily (Italy)
The Italian hare (Lepus corsicanus De Winton, 1898) is endemic to central and southern Italy, where it lives in sympatry with Lepus europaeus in the mainland, while in Sicily L. europaeus is absent. The only report of endoparasites in L. corsicanus in Italy dates back to 2012. After a period of protection, the population density of the Italian hare in Sicily increased. This enabled new parasitological data to be collected on 27 hares which were compared with the data collected on 15 Sicilian hares from a previous study. Trichostrongylus retortaeformis, Paranoplocephala sp. and Cittotaenia (Mosgovoyia) sp. were isolated from the intestine. T. retortaeformis was the most prevalent and abundant parasite. Its abundance was significantly higher in males than in females. No age differences emerged. T. retortaeformis abundance was not related to low body mass and was significantly higher than that calculated from the data of the previous survey. At the same time aggregation, known as a regulatory factor of host-parasite relationship, was also higher in the present study. The possible biases introduced by sampling with different methods prevent any definitive conclusions. However, the relationship between L. corsicanus and its intestinal parasite biocoenosis appears to be stable and has possibly improved, in line with the improved status of the host population
Diet Selection by the Italian Hare (Lepus corsicanus de Winton,1898) in Two Protected Coastal Areas of Latium
Abstract: This study was focused on the diet and feeding behaviour of Lepus corsicanus in two
protected coastal areas of Latium, Castelporziano Presidential Estate (CPE) and Circeo National Park
(CNP). Plant frequency was assessed by the quadrat method, while diet composition was determined
by microhistological analysis of faecal samples. Over the year, the Italian hare fed on 185 of the 229
plant species identified in vegetation, with most of them ingested in low percentages (1%). During
the dry season (DS), in both areas, Brachypodium sylvaticum, Cynodon dactylon, and Avena fatua were
among the most consumed species. In the wet season (WS) the most common plant species in diet
were B. sylvaticum, Poa trivialis, and Carex distachya in CPE and Dactylis glomerata, Cynosurus echinatus,
and Spartium junceum in CNP. In both sites, considering the annual selection of life forms, grasses
and leguminous forbs were preferred, while non-leguminous forbs and shrubs were used less than
expected according to their availability. ANOSIM analysis showed significant differences between
sites in DS and WS diets. Our study evidenced that the Italian hare behaved as generalist, revealing its
capability for exploiting several plant species and to adapt its diet preferences to space-time variation
of food availability
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