Using this page

 

Glossary of Terms

 

 

IUCN:  International Union for the Conservation of Nature

 

EPBC: Environmental Protection and Biodiversity Conservation Act 1999

 

AOO - Area of Occurence: the geographical areas in which a species is normally found.

 

EOO - Extent of Occurence

 

 

 

Images

 

Click on images and maps to see larger versions - once revealed click on screen away from image to return to original view.

Key to maps

reddot.png(red dots) core records, known to represent existing locations of focal taxa; in the case of intra-continental migrants, only records approximating the taxon’s breeding distribution are used.

orangedot(orange dots) non-core records, representing vagrant occurrences of the focal taxon obviously outside its usual range, or historical observations of a taxon known to be extinct at that location.

greydot(grey dots) records of other subspecies of the same species as the focal taxon; or in the case of intra-continental migrants, non-breeding records of the focal taxon not included as core records.

blueploy(blue polygons) minimum convex polygons underlying the locational records on the maps that depict each existing taxon’s Extent of Occurrence (EOO).

yellowpoly

(yellow polygons) areas formerly occupied by Extinct taxa.

 

redarrow(red arrows) the location of taxa with very small distributionsand known seabird breeding locations.

Maps were made using the Geoscience Australia Lambert Conformal Conic (GALCC) projection.

 

     

Taxa data image

Tasman Parakeet (Norfolk Island, Norfolk Island Green Parakeet)

Subspecies Conservation Summary

Image  

Image required click here to contribute.

Map of Distribution  

Image copyright to Glenn Ehmke, Birds Australia

click image to enlarge

Download data (.csv file)

Cyanoramphus cookii cookii

Psittacidae

Population type  

Endemic Australian taxon

IUCN Red List Status 2010  

Critically Endangered B1ab(iii,v)+2ab(iii,v), C2a(ii)

Environmental Protection and Biodiversity Conservation Act Status  

Endangered

Reason if Threatened or Near Threatened  

There may be less than 250 mature individuals and possibly declining. One subspecies Extinct

IUCN Red List Status 2000  

Endangered D

Reason if changed in 2010  

Lack of monitoring and suggestions of decline

IUCN Red List Status 1990  

Critically Endangered B1ab(iii,v)+2ab(iii,v), C2a(ii)

Reason if changed in 2000  

Effective conservation action leading to population increase

Current Eligibility against IUCN Red List Criteria  

.

IUCN Category

Criteria Eligibility

A

Not applicable - past, current or future population declines are thought unlikely to exceed 20% in any 3 generation period

B

Critically Endangered - EOO less than 100 km², AOO less than 10 km², 1 location with plausible future threat, suspected continuing decline in habitat quality, no. mature individuals

C

Critically Endangered - population less than 250 mature individuals, suspected continuing decline, greater than 90% in 1 subpopulation

D

Endangered - population less than 250 mature individuals

E

Not applicable - no population viability analysis undertaken

IUCN Red List Assessment Data  

.

Parameter  

Estimate

Reliability

Extent of Occurrence   

35 km²

high

trend  

stable

high

Area of Occupancy  

8 km²

medium

trend  

stable

high

Number of Mature Individuals  

250

low

trend  

decreasing

low

Number of sub-populations  

1

high

Number of locations  

1

high

Largest sub-population  

250

low

Generation time  

4.6 years

low

Global population share  

100%

high

Level of genetic exchange  

nil

high


Project Partners

CDU Logo University of Queensland Bird Life International Australian Wildlife Conservancy Biosis Research  

BA Logo