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Shore Plover Thinornis novaeseelandiae

IUCN Red List Criteria

Critically Endangered  
Endangered
Vulnerable D1+2 

IUCN Red List history

Year Category
2012 Endangered
2008 Endangered
2004 Endangered
2000 Endangered
1996 Endangered
1994 Endangered
1988 Threatened

Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type   Average mass 61 g

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 3 medium
Area of Occupancy breeding/resident (km2) 5 good
Number of locations 3 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 156-220 good Estimated 2008
Population trend Increasing good -
Number of subpopulations 3 - - -
Largest subpopulation 100 - - -
Generation length (yrs) 6.7 - - -
Population justification: The total mature population was estimated at about 200-220 birds in 2008, with the effective population numbering 156-166 birds (78-83 pairs), because the species is still limited by breeding habitat ( J. E. Dowding in litt. 2008, C. Miskelly in litt. 2008, S. O'Connor in litt. 2008). The total population was considered likely to number 300-330 individuals. Whilst it is now thought to number closer to 250 individuals (N. Askew in litt. 2009), these earlier estimates are retained pending confirmation.
Trend justification: The species's population has stabilised and is now growing as reintroductions increase the number of breeding subpopulations on predator free islands.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
New Zealand Native Extant       Yes

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Temperate major resident
Marine Intertidal Rocky Shoreline major resident
Marine Intertidal Tidepools major resident
Altitude 0 - 0 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Livestock farming & ranching / Scale Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Majority (50-90%) No decline Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Human intrusions & disturbance Recreational activities Timing Scope Severity Impact
Ongoing Minority (<50%) Causing/Could cause fluct Low Impact: 5
Stresses
Species disturbance
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Brown Rat (Rattus norvegicus) Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) No decline Past Impact
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Domestic Cat (Felis catus) Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) No decline Past Impact
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Ongoing Majority (50-90%) No decline Low Impact: 5
Stresses
Competition, Species mortality

Recommended citation
BirdLife International (2014) Species factsheet: Thinornis novaeseelandiae. Downloaded from http://www.birdlife.org on 25/07/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 25/07/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Endangered
Family Charadriidae (Plovers)
Species name author (Gmelin, 1789)
Population size 156-220 mature individuals
Population trend Increasing
Distribution size (breeding/resident) 3 km2
Country endemic? Yes
Links to further information
- Summary information on this species