Supplementary Table 2. List of populations negatively impacted by mammal eradication.
Eradicated
Species
Species
Island
species and
Country common
scientific
Response details
name
operation
name
name
year(s)
Declined to non-detectable after
RufousAimophila
United
Black rat;
eradication despite mitigation efforts,
Anacapa
crowned
ruficeps
States
2001-2002
detected again six years postsparrow
obscura
eradication.
Declined from eight breeding pairs to
none immediately after eradication;
United
Norway rat;
Haliaeetus
Hawadax
Bald eagle
back up to five breeding pairs five
States
leucocephalus 2008
years later. Expected to make a full
recovery.
Black rat,
512 carcasses found; skuas are
rabbit, house
anticipated to have a permanent
Stercorarius
Macquarie Australia Brown skua
mouse; 2010reduction in population size due to
antarcticus
2011
loss of their prey-base (rabbits).
693 carcasses found; breeding pairs
went from 1922 before eradication to
Black rat,
1392 right after eradication and were
Northern
rabbit, house
Macronectes
Macquarie Australia
up to 1487 two years after
giant petrel
mouse; 2010halli
eradication. Numbers continue to
2011
increase and the species is expected
to make a full recovery.
Black rat,
38 carcasses found. Numbers
Southern
rabbit, house
Macronectes
Macquarie Australia
increasing and the species is expected
giant petrel
mouse; 2010giganteus
to make a full recovery.
2011
Citation
(1)
(2)
(3)
(3)
(3)
Country
Species
common
name
Species
scientific
name
Eradicated
species and
operation
year(s)
Response details
Citation
Pinzon
Ecuador
Galapagos
hawk
Buteo
galapagoensis
Island population negatively
impacted by poisoning, above level
Black rat; 2012
predicted a priori. Population
expected to make a full recovery.
(4; Karl
Campbell
, pers.
obs.)
Puffin
Island
(Wales)
United
Kingdom
Atlantic
puffin
Fratercula
arctica
Norway rat;
1998
Vegetation increase after rat
eradication, leading to burrow loss
for puffins.
RSPB
unpublish
ed data
Goat; 2005
Ecosystem and hawk numbers
adjusting to a new equilibrium post
goat eradication without historical
numbers of the major native
herbivore, giant tortoises.
(5)
Island
name
Santiago
1.
2.
3.
4.
5.
Ecuador
Galapagos
hawk
Buteo
galapagoensis
References:
HowaldGR,etal.(2010)EradicationofblackratsRattusrattusfromAnacapaIsland.Oryx44(01):30‐40.
CrollDA,etal.(2015)Passiverecoveryofanislandbirdcommunityafterrodenteradication.BiologicalInvasions:1‐13.
ParksandWildlifeService(2014)EvaluationReport:MacquarieIslandPestEradicationProject,August2014.
(DepartmentofPrimaryIndustries,Parks,WaterandEnvironment,HobartTasmania).
NichollsH(2013)Invasivespecies:The18‐km2rattrap.NatureNews497(7449):306‐308.
Rivera‐ParraJL,etal.(2012)ImplicationsofgoateradicationonthesurvivorshipoftheGalapagoshawk.Journalof
WildlifeManagement76(6):1197‐1204.