Aliens Newsletter - ISSG

More documents

Recommendations

Info

Parkes J, Paulson J, Donlan J, Campbell K (2008) Control of North American beavers in Tierra del Fuego: feasibility of eradication and alternative management options. Landcare Research Contract Report LC0708. Available in Spanish at: www.tierradelfuego.gov.ar/s_desuamb/docs/erradica_castor.pdf and www.karukinkanatural.cl Parkes J, Panetta D (2009) Eradication of invasive species: progress and emerging issues in the 21 st century. In: Clout M N and Williams PA (eds) Invasive Species Management. A Handbook of Principles and Techniques, Oxford University Press, pp.47-60 Saunders A, Parkes J, Aguirre-Muñoz A, Morrison SA (2010) Increasing the pace, scale, and effectiveness of island restoration. Island Invasives: Eradication and Management. University of Auckland, New Zealand, Invasive Species Specialist Group of the World Conservation Union (IUCN) Simberloff D (2002) Today Tiritiri Matangi, tomorrow the world! Are we aiming too low in invasives control?. In: Veitch CR, Clout MN (eds) Turning the Tide: The Eradication of Invasive Species. Auckland, New Zealand Invasive Species Specialist Group of the World Conservation Union (IUCN) Simberloff D (2009) Rats are not the only introduced rodents producing ecosystem impacts on islands. Biol Invasions 11:1735-1742 Towns D, Broome K (2003) From small Maria to massive Campbell: forty years rat eradications from New Zealand islands. New Zealand Journal of Zoology 30:377-398 Menvielle M.F1 , Funes M2 , Malmierca L3 , Ramadori D4 , Saavedra B5 , Schiavini A6 , Soto Volkart N7 1, 3 National Parks Administration, Argentina; 2, 5 Wildlife Conservation Society, Chile; 4 National Fauna Direction, Argentina, 6 National Scientific and Technical Research Council (CONICET), Argentina, 7 Agricultural and Livestock Service (SAG), Chile. 16 29/2010
The Eradication of Ruddy Ducks in the United Kingdom Iain Henderson The non-native Ruddy Duck Oxyura jamaicensis became established in the wild in the United Kingdom in the 1960s following escapes and releases from waterfowl collections. During the 1970s and 1980s it spread into many areas of the UK and was seen with increasing frequency in mainland Europe. Hybridisation with the native White-headed Duck O. leucocephala was first recorded in Spain in 1991. Although the Whiteheaded Duck is classed as “endangered”, the population in Spain is heavily protected from hunting and habitat loss, so hybridisation with the Ruddy Duck is now regarded as the greatest threat to its long-term survival. Following several years of research, a programme aiming to eradicate Ruddy Ducks from the UK began in 2005. Since then over 6,800 Ruddy Ducks have been culled across England, Scotland and Wales, and data suggest that by March 2010 the UK population had been reduced by over 95%. Introduction Figure 1. Male White-headed Duck. Photo: Joe Blossom The White-headed Duck Oxyura leucocephala is listed as Endangered on the IUCN Red List of Threatened Animals (Hughes et al. 2006; IUCN 2009). This species was formerly found throughout southern Europe, parts of North Africa and much of Central Asia but its breeding areas are now highly fragmented, principally due to habitat loss and overhunting. The European breeding population is now restricted to Spain (see Figure 1 and 2), which is the only region where the White-headed Duck has expanded its breeding range and population size in recent years (Hughes et al. 2006). The Spanish population had fallen to as few as 22 birds at just one location by 1977 (Torres 2003), but recovered following a hunting ban which came into force in 1980. Habitat protection has safeguarded the key breeding and wintering sites for the species (Carlos Gutiérrez pers. comm.) and in recent years the postbreeding population has stabilised at between 2,100 and 2,600 birds. In 2007 breeding occurred on 32 sites in southern and eastern Spain (Carlos Gutiérrez pers. comm.). Figure 2. Main breeding and wintering sites for Whiteheaded Ducks in Spain <strong>Aliens</strong> 17
Page 2 and 3: Coordinator Piero Genovesi, ISSG Ch
Page 4 and 5: News from the ISSG The Invasive Spe
Page 6 and 7: sity. The document was signed in a
Page 8 and 9: Conference on Island Invasives; era
Page 10 and 11: • Prioritising the issue of invas
Page 12 and 13: invasion of North American beaver (
Page 14 and 15: Figure 4. Beaver effects in Tierra
Page 16 and 17: dicated beaver eradication on mainl
Page 20 and 21: Figure 3. NARD Male Photo: Mark Hul
Page 22 and 23: ut that control at a larger scale w
Page 24 and 25: Ruddy Ducks in Europe - the current
Page 26 and 27: Heredia B, Rose L & Painter M (eds.
Page 28 and 29: workshop. This was held at the offi
Page 30 and 31: These are: 1. Follow a precautionar
Page 32 and 33: development of new sustainable crop
Page 34 and 35: on footprint and regional environme
Page 36 and 37: Introduced rats on Guafo Island (Ch
Page 38 and 39: Contrary to the New Zealand and Aus
Page 40 and 41: Gaze P (2000) The response of a col
Page 42 and 43: Eradication of invasive Mynas from
Page 44 and 45: Working strategy The working strate
Page 46 and 47: • FT - Funnel Trap. A rectangular
Page 48 and 49: irds are in the segment between 83,
Page 50 and 51: “Field IT for East Africa”: tra
Page 52 and 53: tensified predation by M. salmoides
Page 54 and 55: “Beaufort Scale” for bioinvasio
Page 56 and 57: ing of the level of bioinvasion imp
Page 58 and 59: References: Dvorˇák L, Čejka T (
Page 60 and 61: areas, which combine native and exo
Page 62 and 63: Further information can be obtained

Aliens Newsletter - ISSG

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?