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Innovative techniques in rat eradication in Italian islands · Innovative techniques in rat...
Transcript of Innovative techniques in rat eradication in Italian islands · Innovative techniques in rat...
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Innovative techniques in rat eradication in Italian islands in the
Life Ponderat
Dario Capizzi
Project Manager Life PonDerat
Latium Region, Rome, Italy
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• Resto con Life gave more than 1.000 bait dispensers to Life PonDerat
• Life PonDerat helped in field work in the second phase of rat eradication in Pianosa
Resto con Life & Life PonDerat
A fruitful cooperation
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• since 1999, rat eradication achieved on several unhinabited islands
• bait distribution on rough terrains performed with aerial distribution of loose bait (pellets)
• a derogation of EC Biocide Regulation is needed
• aerial distribution of pellets not possible in inhabited islands
So far…
…on Italian islands…
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Dealing with inhabited islands
• Presence of schools, farmers, hunters, fishers
• Presence of pets (dogs and cats)
• Presence of wildlife (e.g. seagulls, raptors, ravens)
• Presence of not accessible areas (especially in Palmarola)
Within Life PonDerat, we planned rat eradication in
two inhabited islands: Ventotene and Palmarola
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Ventotene
In the Mediterranean, the most inhabited (700 residents) island where an eradication has been attempted
Presence of a village
Presence of a big cat colony (about 200!), cared by cat people
Surrounded by high cliffs
Surface 144,5 ha
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Only 1 resident, but presence of several scattered houses In late spring and summer very busy Presence of cats and dogs High cliffs, rough terrain, accessible only 30% of the island
Palmarola
Main island 125 ha, but several unaccesible stacks and islets
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• limiting the use of brodifacoum without losing in effectiveness
• avoiding loose bait (pellets) distribution
• selecting a bait dispenser suitable to be thrown by helicopter (only in unaccessible areas)
• resistant, biodegradable
Our goals
Avoiding impacts to pets and non-target species
Bait distribution all over the islands
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Solutions found
1 - Differentiated bait distribution
Applied for the first time in an eradication to lower the impact on non-target fauna
First bait administrations with bromadiolone (less toxic), last with brodifacoum (more potent)
The idea is to use brodifacoum when rat population is already depleted
A preliminary monitoring of rodent resistance to anticoagulants was performed
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VENTOTENE
Bromadiolone Brodifacoum
976 bait stations, bait uptake: 394 kg of bromadiolone and only 8 kg of brodifacoum
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Biodegradable bait containers built by our own personnel
Used on:
• 75 ha of Palmarola and all islets
• cliffs of Ventotene
Average density: 14 bait containers/ha
3 different aerial distributions on Palmarola, 2 on Ventotene
Solutions found
2 – Aerial bait station distribution
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Biodegradable bait containers built by our own personnel
Used on:
• 75 ha of Palmarola and all islets
• cliffs of Ventotene
Average density: 14 bait containers/ha
3 different aerial distributions on Palmarola, 2 on Ventotene
Solutions found
2 – Aerial bait station distribution
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Ventotene – Aerial and land-based distribution
Land based Aerial
Bait distribution
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Palmarola – Aerial and land-based distribution
Land based Aerial
Bait distribution
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About effectiveness…
eradication started at January 2018
a careful monitoring has been carried out in areas treated by land and by helicopter
no rat track has been recorded since June 2018 at Palmarola, September 2018 at Ventotene
Did it work?
Soon to say, but…
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About impact on non target species…
No scavenger or predator was found dead
Barn owl of Ventotene has survived
No cat or dog died or disappeared
Cat people confirmed that cat colony in Ventotene is healthy and hunarmed
Did it work?
Soon to say, but…
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Life PonDerat, an experience shared with: Paolo Sposimo, Filippo Dell’Agnello, Francesco Lanini, Cristina
Castelli, Fabrizio Petrassi, Cristiano Fattori, Giulia Sozio, Andrea
Monaco, Nicola Baccetti, Camilla Gotti, Elisabetta Raganella
Pelliccioni, Maria Angela Selvatici, Ferdinando Corbi, Fabio Pinos,
Lucia D’ Amato, Antonio Lecce, Marta Mastrantonio, Lucia
Cavagnuolo, Fabio Giannetti, Marco Romano, Gerardo Coppola,
Matteo De Santis, Nicola Marrone, Alessio Zoina, Daniele
Nunziata, Daniele Valfrè, Domenico Serafini, Carmen Biondo,
Roberto Orlandini, Attilio Rossato, Stefano Palombi, Alessia Baldi,
Valentina Pizzamiglio, Giuseppe Puddu, Giampiero Tirone,
Giuseppe De Pisa, Saverio Meneghello, Fabio Scarfò, Massimo
Bellavita, Paolo Perrella, Ernesto Monaco, Sergio Muratore,
Riccardo Piroli, Emanuela Carli, Riccardo Copiz, Raffaella Frondoni,
Gaia De Luca, Giuseppe Mazzella, Sara Riello, Annarita Matrone,
Antonio Romano
… and many others
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…thanks for your attention!
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www.ponderat.eu