0000000000947506
AUTHOR
Francesco Lillo
Confronto dello spettro trofico di due popolazioni di Bufo siculus
Ecologia trofica di una popolazione alloctona di Xenopo liscio, Xenopus laevis (Daudin, 1802), in Sicilia
Variazione morfometrica di Podarcis waglerianus in un sistema microinsulare
Indagine su due popolazioni di rana verde (Pelophylax synklepton hispanicus) della Sicilia occidentale
Identity of invasive clawed frogs (Xenopus) in Sicily based on mitochondrial DNA sequences
Influenza del dimorfismo comportamentale nella stima della grandezza di popolazione. Il caso di Bufo viridis.
Can the introduction of Xenopus laevis affect native amphibian populations? Reduction of reproductive occurrence in presence of the invasive species
Biological invasions are regarded as a form of global change and potential cause of biodiversity loss. Xenopus laevis is an anuran amphibian native to sub-Saharan Africa with strong invasive capacity, especially in geographic regions with a Mediterranean climate. In spite of the worldwide diffusion of X. laevis, the effective impact on local ecosystems and native amphibian populations is poorly quantified. A large population of X. laevis occurs in Sicily and our main aim of this work was to assess the consequences of introduction of this alien species on local amphibian populations. In this study we compare the occurrence of reproduction of native amphibians in ponds with and without X. lae…
Cytokine components and mucosal immunity in the oviduct of Xenopus laevis (amphibia, pipidae)
Abstract Most studies on the mucosal immunity in female reproductive tissues have been performed in mammals. In all species, apart from their reproductive strategies, immunity in the genital mucosa is required to defend the host against luminal pathogens. In this study we investigated the role of the innate immunity of the oviductal mucosa of Xenopus laevis , an amphibian characterized by external fertilization. In particular we examined the expression and localization of Interleukin-1β (IL1B), Macrophage migration inhibitory factor (MIF) and Interleukin-1 receptor type 1 (IL1R1) in different oviductal portions including an upper glandular region, an intermediate and a lower aglandular regi…
Differenze sessuali nell'utilizzo spazio-temporale del territorio in una popolazione di Bufo viridis in Sicilia
Breeding phenology of Bufo viridis Laurenti, 1768 in Sicily (S Italy)
Note sul comportameno riproduttivo di Bufo viridis in Sicilia
Dieta di una popolazione di xenopo liscio introdotta in Sicilia
The large invasive population of Xenopus laevis in Sicily, Italy
AbstractThe worldwide spread of invasive species is considered to be one of the main causes of global amphibian declines and the loss of biodiversity in general. The African Clawed Frog, Xenopus laevis, shows a strong ability to establish populations and invade various geographic regions. In 2004 X. laevis was found in Sicily for the first time. The Sicilian population is probably the largest in Europe with a range of about 225 km2 in an area characterized by numerous agricultural ponds. This high density of ponds has potentially facilitated the dispersal of X. laevis. The frogs can move far from rivers or watercourses by utilizing the ponds as suitable "islands". The analysis of their diet…
Is the painted frog Discoglossus pictus a declining species in Italy? On the reliability of a distributional atlas approach
The conservation status of amphibians is often assessed using public databases because of a lack of up-to-date field data. However, it is crucial that this kind of data is used carefully, evaluating the reliability and the consistency of the information. In Italy, the conservation status of the painted frog, Discoglossus pictus, was recently assessed using public databases, and the outcome highlighted a worrying situation for the species. We analyzed the reliability of these conclusions and reassessed the status of the painted frog, taking into account its insular distribution and new data of species occurrence. Our results contrast with the previous analysis and show how an incautious use …
A non-native population of Xenopus laevis in Sicily feeding during the riproductive period
Preliminary Data about diet and distribution of allochthonous population of Xenopus laevis (DAUDIN, 1802) in Sicily.
Evaluation of potential expansion of the alien invasive species Xenopus laevis in Sicily and possible implication for native amphibian populatios.
Xenopus laevis in Sicilia: areale, invasività e impatto
Le specie alloctone in Italia: censimenti, invasività e piani di azione
Modelli di distribuzione potenziale di popolazioni aliene di Xenopus laevis a scala locale e globale.
Identification and potential origin of invasive clawed frogsXenopus(Anura: Pipidae) in Sicily based on mitochondrial and nuclear DNA
African clawed frogs of the widespread polytypic species Xenopus laevis Daudin, 1802 (ranging large parts of sub-Saharan Africa) have been spreading since the 1940s, and have established reproductive populations in Europe, Asia and the Americas, where they can have negative impact as competitors of native amphibians and as disease vectors for chytridomycosis or ranaviruses. Here we use two mitochondrial (cytochrome b, 16S rDNA) and one nuclear (RAG 1: Recombination Associated Gene 1) DNA markers to infer the potential origin of invasive clawed frogs from Sicily that represent the largest invasive population in Europe. Identical mtDNA haplotypes match with those of Xenopus laevis, and Sicili…
Primi dati sul comportamento alimentare di Bufo siculus Stöck et al., 2008
Inatteso ritrovamento di Bufo viridis Laurenti, 1786 (Amphibia Bufonidae) sull’isola di Pantelleria (Sicilia)
Una nuova popolazione isolata di xenopo liscio in Sicilia sud-occidentale
African clawed frog is a sub-saharan native anuran that has been introduced in various states of the old and the new world. The only Italian population of this species is located in western Sicily, and it is known as the European clawed frog population with wider distribution area. This paper describes a new Sicilian population of this species, and sets out to verify the effective isolation from the currently known distribution. The new site is a disused swimming pool, located near the mouth of the Belice River (province of Trapani), 31 km away from the nearest edge of the African clawed frog distribution area. To test whether this new population is the result of natural expansion of its ra…