Ottonello DarioAgenzia Regionale per la Protezione dell'Ambiente Ligure · Direzione Scientifica - Ufficio Biodiversità
Ottonello Dario
PhD
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Publications (109)
Freshwater ecosystems are experiencing one of the highest rates of biodiversity decline among extant ecosystems. To inform effective conservation actions, it is imperative to develop reliable monitoring techniques to assess the species richness of freshwater communities. In this study, we applied for the first time an eDNA metabarcoding assay on si...
Two observations (11/02/2022, 05/12/2023 from Davide Barberis) of Anguilla anguilla (Linnaeus, 1758) individuals in a not-touristic part of the Borgio Verezzi show cave (Liguria, NW Italy) raises intriguing questions regarding the phenology of the species and its potential troglophilic behavior in karst environments adjacent to the coastline. Thank...
Monitoring, management and conservation of rare and elusive species often requires early detection of individuals, especially for re-introduced and endangered taxa. Environmental DNA (eDNA) approaches can enhance the detection power of traditional biomonitoring methods for low-density, newly-established populations. In this study, we used species-s...
Nel settembre 2021 il ritrovamento accidentale di tre neonati di Caretta caretta a Finale Ligure (SV) ha permesso alla comunità scientifica di accertare il primo caso noto di nidificazione di questa specie sulle coste liguri. L’anno successivo, nella notte del 15 luglio, è stata osservata una femmina di C. caretta deporre sulla spiaggia libera di L...
Behavioural and spatial distribution analyses were quantified during a phase of activity and lethargy in a wild population of the European pond turtle inhabiting a protected internal wetland area of the Venice lagoon. The marked individuals (13 males and 16 females) provided informative radiotracking data to study differential patterns of activity,...
In NW Italy, the abandonment of traditional farming is causing the loss of small artificial water reservoirs that are often used by amphibians as trophic and breeding habitats. Starting in 2010, a regional conservation project implemented in Val di Vara (Liguria, NW Italy), had the goal of improving the conservation status of the endangered Yellow-...
The common genet (Genetta genetta) is a medium-sized nocturnal carnivore belonging to the family Viverridae. It is found over much of Africa, a few parts of the Arabian Peninsula and as part of an introduced population in south-western Europe. Since its probable introduction from North Africa, the common genet has expanded into south of Europe: sta...
In the city of Genoa (NW Italy) three breeding species of Psittaciformes are knownto occur: Psittacula krameri, Amazona ochrocephala andAmazona aestiva. We planned to update the knowledge of these alien species involving citizens in a project coordinated and managed by professional scientists and technicians from the Universityof Genoa, the Natural...
The introduction of alien fish species in wetland ecosystems could have a great impact on freshwater communities and ecological processes. Despite fish introduction has been noticed as one of the principal cause of freshwater extinctions, ecosystem processes alteration, and change in aquatic community assemblage, very few data about impact on fresh...
A freshwater turtle monitoring programme along the inland margins of the
Venice lagoon was initiated in 2019 in collaboration with the World Wild Fund for
Nature (WWF-Italy). From a total of 336 European pond turtles (Emys orbicularis)
captured and marked, 97 freshwater turtles were recaptured at least once (28.9%
return rate) providing important i...
The Sicilian Pond Turtle, Emys trinacris (family Emydidae), is a small-sized freshwater turtle (straight midline carapace length to 172 mm in females, 156 mm in males), endemic to the island of Sicily in Italy. It appears to be more widespread in the northern and central-western parts of the island, with the exclusion of Monti Peloritani and most o...
La testuggine palustre europea è tradizionalmente considerata una
specie legata maggiormente ad ambienti planiziali di bassa quota, ma nelle aree
più meridionali del suo areale di distribuzione può raggiungere anche quote di
media-alta montagna. In questo studio presentiamo i risultati di un monitoraggio
condotto nel 2018 che ha interessato quattro...
La presenza di Emys orbicularis all’interno della Riserva Naturale
Torrile e Trecasali è nota da tempo, sebbene non siano mai stati condotti studi per
approfondire la distribuzione e l'abbondanza della specie all’interno dell’area
protetta. In questo lavoro preliminare sono presentati alcuni parametri di
popolazione e alcuni aspetti morfometrici de...
Il seguente studio consiste nell'identificazione dei batteri prelevati
dalle infezioni del carapace di alcuni individui della sottospecie Ligure di
testuggine palustre europea Emys orbicularis ingauna con particolare riguardo
agli animali affetti da Septicemic Cutaneous Ulcerative Disease (SCUD). In
totale sono stati analizzati cinque individui, un...
Recenti normative e studi scientifici hanno evidenziato le
problematiche riguardanti l’introduzione di testuggini alloctone in natura.
Nonostante ciò, i dati riguardanti le interazioni con E. orbicularis in aree di
sintopia sono tuttora scarsi, anche per la novità del fenomeno che coinvolge
specie molto longeve. In questo contesto, l’Oasi Cave di G...
______________________________ RIASSUNTO-Nel 2015 è stato condotto un monitoraggio sanitario sulla fauna ittica da 7 corsi d'acqua liguri in collaborazione con la Regione Liguria e l'Università degli Studi di Genova. I campioni composti da 93 ciprinidi di cui 46 vaironi (Telestes muticellus), 25 barbi (Barbus plebejus) e 22 cavedani (Squalius cepha...
Recently several projects have been implemented for the conservation of the European turtle Emys orbicularis, but few aspects of the captive-bred animals released into the wild have been described. In this note we report about the trophic habits of a small restocked population of the endemic subspecies E. o. ingauna that is now reproducing in NW It...
The lack of data relating to basic life-history and population dynamics is one of the gaps to be filled in
order to develop a proper strategy for the conservation of the Sicilian Pond Turtle (Emys trinacris). In this
study, we present the results of the first year of a multi-annual monitoring program focusing on a specific
wetland area, located wit...
Directive 2000/60/EC arises to develop an European-level regulatory framework capable of
supporting integrated Community action in the field of water policy. General objectives are either to
prevent the deterioration or to facilitate the improvement of aquatic environments and encourage the
sustainable use of water resources. Fish community is one...
The need to identify no-killing monitoring methods for Anguilla anguilla L. stocks has become a crucial requirement according to a management and conservationist perspective. This paper reports the preliminary observations on the enforcement of Silvering Index (Acou et al., 2005) in several basins of the Liguria Region. This Index has been used in...
le informazioni sia sulla sistematica sia sulla biologia dei cestodi che inte-
ressano gli anfibi europei sono molto limitate, e fino a poco tempo fa era
noto un unico genere: Nematotaenia luhe, 1910 (ricci, 1988). Buriola et
al. (2002; 2005) confrontando cestodi provenienti da esemplari parassita-
ti di Speleomantes strinatii nell’appennino genove...
In this study we provide data on the population structure, sex ratio and evi-
dence for reproduction in the wild for two populations of the invasive fre-
shwater chelonian trachemys scripta elegans, in liguria (nW Italy). During a
lIFe nature project, aiming to preserve the endangered autoctonous pond
turtle Emys orbicularis ingauna in the Centa ri...
Comportamenti territoriali e aggressività verso conspecifici e individui di
altre specie sono stati ampiamente descritti nei Pletodontidi nordamericani
fin dagli anni ’70. Tali comportamenti sono essenzialmente legati alla spar-
tizione degli habitat e delle risorse trofiche, ma sono state evidenziate anche
cause riconducibili alla protezione del n...
Ianieri Edizioni Via L. Da Vinci, 16-65124 Pescara-Tel. 085.2192404 www.ianieriedizioni.it-info@ianieriedizioni.it Nessuna parte di questo libro può essere riprodotta o trasmessa in qualsiasi forma o con qualsiasi mezzo elettronico, meccanico o altro senza l'autorizza-zione scritta dei proprietari dei diritti. Abstract Since 2000, a captive breedin...
A seguito dell’incremento demografico del cormorano Phalacrocorax carbo palesatosi in Europa negli ultimi anni sono aumentati i conflitti tra questa specie ittiofaga ed alcune attività umane quali la pesca sportiva e l’acquacoltura. Tali interazioni sono dovute in Italia soprattutto all’incremento delle popolazioni svernanti della sottospecie Phala...
Nel corso dell’estate 2015 è stata condotta un’indagine parassitologica su 17 esemplari di anguilla europea pescati in acque interne liguri con lo scopo di studiare la prevalenza di Anguillicoloides crassus, namatode responsabile dell’Anguillicolosi.
Feeding ecology of a species is the result of its evolutionary history, biology, physiology and local constraints, such as prey availability, intra- and inter-specific interactions and environmental characteristics. In this study we investigated the still unknown diet of the Sicilian pond turtle, with special emphasis to the relationships with rece...
Captive breeding and reintroduction programs remain a powerful but divisive tool for management of threatened species, with a proven potential to avoid extinction, but low long-term success rates and high resource requirements. Monitoring the results of reintroductions is critical to be able to assess short- and long-term success, adjusting managem...
The North Atlantic Oscillation (NAO) is a largescale climatic pattern that strongly influences the atmospheric circulation in the northern Hemisphere and by consequence the long-term variability of marine and terrestrial ecosystem over great part of northern Europe and western Mediterranean. In the Mediterranean, the effects of the NAO on vertebrat...
This short note describes the first advisory about the return upstream of a specimen of Alosa fallax (Lacépède, 1803) along the River Entella and the Lavagna Stream up to Ponte Vecchio locality (Municipality of Carasco, Liguria Region, NorthWestern Italy). The observation of twaite shad in the Entella River basin is a very important ichthyological...
The first record of the cisalpine pike Esox cisalpinus Bianco & Delmastro 2011 in the lower Magra River Basin (E Liguria, NW Italy) is reported. The finding of a dead pike specimen in a fyke net in Laghi Gemelli inside the Montemarcello-Magra-Vara Natural Park holds conservation and management implications for the distribution and definition of nat...
La ricerca, inserita nell'ambito del “POR Liguria FESR 2007/2013 ASSE 4, linea di attività 4.2 Valorizzazione e fruizione Rete Natura 2000”, ha previsto il monitoraggio nel periodo settembre 2013 - settembre 2015 di alcune colonie di particolare interesse conservazionistico presenti nel territorio ligure. L’indagine ha interessato complessivamente...
In contrast with the usual coloration of white clawed crayfish Austropotamobius pallipes complex Lerebouillet, 1858), we reported the presence of several xanthochroic specimens in San Romolo Brook (Liguria, NW Italy).
Within a sample composed by 12 crayfish trapped, belonging to the “Western Europe” or “France” haplotype, this usually highly rare c...
The North Atlantic Oscillation (NAO) is a large-scale climatic pattern that strongly influences the atmospheric circulation in the northern Hemisphere and by consequence the long-term variability of marine and terrestrial ecosystem over great part of northern Europe and western Mediterranean. In the Mediterranean, the effects of the NAO on vertebra...
Riassunto La Stazione Biospeleologica di San Bartolomeo di Savignone si trova in Valle Scrivia (prov. Genova). Si tratta di un tunnel, con sviluppo orizzontale di oltre 40 m, scavato nella formazione dei calcari dell'Antola durante la Seconda Guerra Mondiale. Questa cavità è stata spontaneamente colonizzata da una popolazione del geotritone di Stri...
The Biospelogical Station of San Bartolomeo di Savignone is located in the Scrivia Valley (north-western Italy). This horizontal tunnel,measuring about 40 m, was excavated in marlstones during World War II, when it was used as an air-raid shelter. This cavity was naturally colonized by a population of the cave salamander Speleomantes strinatii that...
Presence and distribution of ecological barriers shapes the distribution of migratory birds as well as any other living organism. In Italy, short-toed snake eagles (Circaetus gallicus) breed in the northern and western areas of the peninsula but the species is rare in the south or the islands. The Italian population of this species migrates across...
Abstract: Information on individual trophic specialization may be relevant to better understand the ecological adaptation of populations to their environment and the evolution of their realized trophic niche. In this study, we analysed the trophic specialization at the individual level in a population of the plethodontid Northwest Italian Cave Sala...
Enquêtes récentes sur le lézard ocellé, Timon lepidus lepidus, populations le long de la française et italienne frontière autorisée à mettre à jour la répartition de l'espèce et état de conservation. Deux populations reliant les deux pays ont été découvertes et plusieursdes voies entre la France et l'Italie sont suspectées. Nous discutons également...
Recent surveys on the ocellated lizard, Timon lepidus lepidus, populations along the French and Italian border allowed to update the species’ distribution and conservation status. Two populations connecting the two countries were discovered and several pathways between France and Italy are suspected. We also discuss the status of these populations...
Information on individual trophic specialization may be relevant to better understand the ecological adaptation of populations to their environment and the evolution of their realized trophic niche. In this study, we analysed the trophic specialization at the individual level in a population of the plethodontid Northwest Italian Cave Salamander (Sp...
Lo stock europeo di Anguilla anguilla ha risentito, in tutto il sua areale, di una drastica riduzione a partire dagli Anni '70 del secolo scorso: nel 1980 il reclutamento di cieche registrò una diminuzione del 10% rispetto alle annate precedenti, con un ulteriore decremento quantificato tra l'1 ed il 5% nel 2000: oggi i dati sia di cattura sia di r...
We present the results of modelling the supplementation program for Emys orbicularis in Liguria. We evaluated three possible alternative strategies for the reintroduction, releasing 3-, 4-or 5-year-old turtles. In particular, we wanted to assess the expected population sizes that could be achieved by these release strategies, given environmental an...
The Apennine Yellow-bellied toad, Bombina variegata pachypus is endemic to the Italian peninsula. Land abandonment, chytrid infection and climate change are negatively impacting Yellow-bellied toad populations in many parts of its range. In Liguria, a northwestern administrative Italian region, a regional conservation programme has been implemented...