Geese and crop damage in Sweden “Who, where, when and what”?
© Magnus Friberg
Johan Månsson, Teresa Montras Janer & Lovisa Nilsson Data used – Swedish compensation scheme 2,194 inspected and approved reports between year 2000-2015
Canada - not eligible Greylag - partly Barnacle & bean - eligible
© J. Månsson Data used – Swedish compensation scheme
2,194 inspected and approved reports between year 2000-2015
Compiled in Teresa’s thesis
© J. Månsson Who? Goose abundance - Sweden, 2018-2019
September October November January White-fronted 14 1628 4056 5046 Bean (taiga and tundra) 8208 68,119 42,631 39,175 Pink-footed 99 2546 376 264 Greylag 169,888 123,850 55,961 55,710 Lesser white-fronted 79 31 1 0 Canada 29,231 15819 18,564 54,865 Barnacle 33,231 178,391 307,623 59,660 Brent 300 558 44 0 Total 241,036 389,314 425,200 209,674
Nilsson and Haas 2019 – Lunds university Who? Don´t forget – also other species in the system Pairs • Common Crane 30 000 • Whooper swan 5 400 • Greylag 41 000 • Bean 850 • L. white-fronted 20 • Canada 17 000 • Barnacle 4 900
Ottoson mfl. 2012. Fåglarna i Sverige – antal och förekomst Who? …and even more species… Estimated loss by farmers
Wildlife damage to agricultural crops in Sweden (questionnaire 2014) 20000 18000 HöstveteWheat (autumn sowned) 16000 VårkornBarley (spring sowned) 14000 12000 10000 8000 loss (1000 kg) 6000
Crop 4000 2000 0 WildboarVildsvin MooseÄlg RedKronhjort deer DovhjortFallow RoeRådjur deer CraneTrana GeeseGås deer Ländell & Funcke 2014 Who? Proportion of damage per species
Whooper swan Bean goose 4% 4% Other n=2,194 reports 3%
Greylag goose 27%
Common crane 34%
Barnacle goose 28% When? Timing of goose damage in Sweden
© Magnus Friberg Crop damage
© Teresa Montras Janer © Teresa Montras Janer © J. Månsson Damage – late summer 31 August before birds arrive Photo: 13 days later (13 Sept) 2 days later(15 Sept) – field harvested by cranes and greylags Where? Reported damage When? n=2,194 What? Barley Ley Wheat Rape seed
Barnacle Common crane Bean Greylag Whooper
Montras et al 2019 Who and what? Reported damaged crops differ between species
Barnacle Grey lag Bean Vall,Ley, Betepastures
Fodersäd,Coarse grain Fodersäd/vall (silage)
KornBarley HavreOat HöstveteWheat (autumn sown) Råg,RågveteRye, triticale Carrot VårveteWheat (spring sown)
Ley/pastures Barley
BlandsädMixed grain RapsRape seed Common crane Whooper swan ÄrtväxterPeas SockerbetorPotatisPotatoe IsbergssalladLettuce Potatoe MorotCarrot
Rape seed Månsson et al. 2011
Future? Future? Increasing goose numbers in January Goose individuals
Nilsson and Haas 2019 No of damage reports
No of damage reports Montras et al 2020 Thanks to Tomas Pärt Ingunn Tombre
Funding Swedish EPA FORMAS SLU
© Magnus Friberg Compensation and subsidies
Million EUROS 1.01 Compensation Subsidies Total 5.0
0 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Year