Conservazione della principale popolazione europea di Berta maggiore mediterranea Calonectris diomedea e altri uccelli pelagici nelle Isole Pelagie

Action C1 – Black rat eradication on Linosa

Action C1 – Black rat eradication on Linosa

As a result of the recent attempt to estimate the population of Mediterranean Yelkouan Shearwater on Lampedusa, action C1 is intended to assess the actual extent of the current impact of black rats on the nesting species, whose global importance was made clear by recent surveys. In fact, it is the third largest population ever, surpassed only by those of Tavolara and the Maltese Islands. The action also aims to evaluate the usefulness of maintaining a long-term control, costs and opportunities for optimizing intervention effectiveness.
Black rat eradication on the island of Linosa will then be carried out through the distribution of rodent baits. Eradication will be made by adopting a mixed methodology consisting of both manually distribution of pellets in remote areas and use of dispensers (rigid containers inaccessible to animals larger than a rat) equipped with rodent baits in paraffin wax blocks, located in inhabited and cultivated areas.
Eradication requires the acquisition of equipment (GPS), supplies such as baits, dispensers and containers for their transportation, clothing and personal protective equipment, and an accurate logistics organization, suitable deposits for baits, transportation to cover the entire island, including probably a boat to reach coastal areas inaccessible by land.
The baits used do not involve risks of pollution of the soil or groundwater, even in case of fully free distribution of baits. The only significant risks are related to the possible poisoning of non-target species that eat baits (direct contamination) and by passing along the food chain (indirect contamination). Rodent baits are not toxic to invertebrates, and does not seem attractive to reptiles.
All the above actions will help to:
• eradicate black rat on Linosa;
• restore reproductive success of Mediterranean Cory’s Shearwater to its natural rate;
• increase the number of Mediterranean Cory’s Shearwater nesting population. It’s conceivable a grow rate of 7% per year, as noted in Corsica after stopping rat predation on birds;
• facilitate the renaturalization process of the vegetation by cessation of selective seeds predation by rats;
• assess the impact of rats on Mediterranean Yelkouan Shearwater on Lampedusa.
Sanitary/veterinary authorities will be involved within their area of responsibility. The Manager of this action is DRARFD, which provides his staff for the execution of field work and it is responsible for finding external cooperation and for the purchase of necessary materials. The SAF Department assumes the responsibility of scientific action and the coordination and control of field work.

Beneficiario Coordinatore
Università degli Studi
di Palermo
DIPARTIMENTO SCIENZE AGRARIE E FORESTALI
Beneficiario Associato
Dipartimento Regionale Azienda Regionale
Foreste Demaniali

Beneficiario Associato
Fare Ambiente
Movimento Ecologista Europeo
Coordinamento Regionale della Sicilia
Beneficiario Associato
Legambiente
Comitato Regionale
Siciliano
ONLUS
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