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A distanza di 9 anni dalla pubblicazione della CheckList di IENTILE (2009) si aggiorna l'elenco delle specie accertate per la Riserva Naturale Orientata delle Saline di Trapani e Paceco. Si è passati dalle 209 specie (IENTILE, 2009) alle attuale 229 specie. Inoltre sono state aggiunte stime sulla con-sistenza delle coppie dei nidificanti, degli sve...
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Citations
... arborea in association with herring gulls Larus michahellis, apparently without competition and / or predation. Between 2013 and 2017, 15-50 couples were registered (Surdo, 2018). The small size of the two colonized islets (100 square meters each) have certainly prompted the species to nest also on artifacts, the first case reported in the literature (Surdo, 2016). ...
For the first time, the nesting of Eurasian crag martin Ptyonoprogne rupestris (Scopoli, 1769) (Passeriformes Hirundinidae) and Little egret Egretta garzetta (Linnaeus, 1766) (Pelecani-formes Ardeidae) in the Aegadian Islands (W-Sicily, Italy) is reported. Of particular interest is the nesting of the Little egret on the island of Maraone resulting in the first report for Sicily of a heronry on a marine island. Although this nesting environment has already been established in Sardinia, it should be emphasized that until now the establishment of a heronry has never been detected on an islet so far from the mainland.
... (Gariboldi & Ambrogio, 2006). wintering (Massa et al., 2021) with most of the records in Saline di Trapani (Surdo, 2016a;2018 IV.1975(Iapichino & Massa, 1989) and now preserved in the Zoology Museum of Catania University (Corso, 2005). ...
The complex of "Sicilian southeast swamp lakes" represents one of the most important wetland of Sicily and south of Italy for many species of birds. A specific, detailed and complete bird checklist of such an important area was never published, so, data were collected on the field from January 2015 to May 2021 and 226 different species were recorded, thanks to weekly bird census funded and promoted by the German foundation Stiftung Pro Artenvielfalt, owner of the two biggest swamp lakes. In addition, data related to 18 additional species recorded in the same area were collected from bibliographic sources and personal communications from other ornithologists and birdwatchers, for a total of 244 species, of which 74 breeding in the area. A first complete checklist is presented in this paper, as well as the remarks of 44 of the most interesting, relevant or unusual bird records, including the most accurate and up-to-date estimates of breeding pairs of Marmaronetta angustirostris, Aythya nyroca and Porphyrio por-phyrio in the study area.
... This is probably another consequence of the strong erosion and habitat degradation of River Simeto's mouth. Recorded numbers of Calidris alpina and Calidris minuta are not relevant if compared to wintering population of other Sicilian localities, such as Saline di Trapani (Zenatello et al., 2014;Surdo, 2016;Surdo, 2018) and in any case showed a decrease for the Simeto's area (Corso, 2005). Species as Tringa totanus, Tringa nebularia, Tringa glareola, Tringa erythropus, Gallinago gallinago and Calidris temminckii cannot be considered closely related to the use of sandy coast for wintering and were indeed observed exclusively in the freshwater stream mouths and never along the shoreline. ...
... controlling fishing, dogs and other local threats), improving skill in volunteers, citizen management actions, etc… The observation of 3 ind. of Tringa glareola at the mouth of Canale Forcile is also interesting, since the species is only reported as wintering for the area of Mazara del Vallo (Trapani) and Saline di Trapani with 1-3 ind. (Zenatello et al., 2014;Surdo, 2016;Surdo, 2018;Surdo et al., 2018). All the species listed and individuals observed were not evenly distributed along the transects: Transect 2 has been much more rich in species and number of individuals than the others, accounting for as much as 82% of the total of shorebirds observed. ...
Sandy coasts are specific habitats of high ecological significance for many species of shorebirds. The Gulf of Catania, in the Eastern coast of Sicily, is considered one of the most important sandy coastal areas of the region for the wintering of different species of Charadriidae and Scolopacidae, also due to the presence of River Simeto’s mouth and other freshwater streams. Since the area has been subject to many changes in the last few decades and recent data were not available, a ten-year monitoring of the wintering shorebird community has been carried out, from January 2011 to January 2020, to understand its current ecological role and to update the knowledge about numbers and trends of Sicilian wintering shorebirds along the coast. A total of 3,171 individuals and 16 different species were observed, including a considerable amount of individuals of Calidris alba and Charadrius alexandrinus, despite the latter showed an 80% decrease in number in the last 20 years in the area. For each species, maximum numbers observed per winter and related five-year averages, estimates, IKA (Index of Abundance per Kilometre) and percentages in relation to the national wintering population have been reported. Furthermore, data about species associations were collected and analysed. This survey shows how the ecological value of River Simeto’s mouth has decreased considerably in the last decades in favour of other locations, such as the mouth of Canale Arci, where almost 50% of the birds were observed.
... A higher frequency of observations has been recorded since 1990, in correspondence with the first cases of breeding of the species in Italy (Canova & Fasola 1989). These two events are directly connected to each other as many of the ringed individuals with coloured rings observed in Sicily are of Italian origin (Surdo et al. 2017;Surdo 2018). ...
The observations of the Eurasian spoonbill made in Sicily between 1972 and 2018 were collected and analyzed. The presences, initially scarce and referred to a few sites, have consolidated over time, and gradually have affected an increasing number of sites. The observations were concentrated in the coastal salt pans and exsalt
pans systems, secondarily in the mouths and in inland waters, below 100 m a.s.l.. The greatest number of Eurasian spoonbill was found in the migration period, both post and pre-reproductive; in the summer the lowest values. The average number of birds per flock, compared to subsequent years, from November to January did not vary significantly, while it was variable in the remaining periods of the year. In the main sites, the fluctuations in the number of individuals are discordant; this suggests a distribution conditioned by local environmental factors, although no correlation was found between the amount of rainfall and the number of individuals. The increasing
presence of the Eurasian spoonbill in Sicily is greatly influenced by the increase of the breeding populations in Central-Eastern Europe, and the simultaneous improvement of the environmental conditions of wetlands in Sicily, following the establishment of a network of protected areas. Sicily, interested by important migration flows,
plays a key role for the stopover and hosts important wintering flocks of national relevance.
