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

Grey-headed Albatross

Species Conservation Summary

Image  

Image required click here to contribute.

Map of distribution  
Grey-headed Albatross

Image to copyright Glenn Emke, Birds Australia

click image to enlarge

Download data (.csv file)

Thalassarche chrysostoma

Diomedeidae

Population type  

Australian breeding population

IUCN Red List Status 2010  

Critically Endangered B2ab(ii,iii)

Environmental Protection and Biodiversity Conservation Act Status  

Endangered

Reason if Threatened or Near Threatened  

Population occurs at a single location where the habitat quality is declining as a result of rabbit grazing and the minute area occupied is probably contracting

IUCN Red List Status 2000  

Endangered D

Reason if changed in 2010  

Active threats to Macquarie I. breeding sites

IUCN Red List Status 1990  

Endangered D

Reason if changed in 2000  

No change

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 - AOO less than 10 km², 1 location, observed continuing decline in AOO, habitat quality

C

Not applicable - no continuing population decline or extreme fluctuations

D

Vulnerable - no more than 5 locations with plausible future threat

E

Not applicable - no population viability analysis undertaken

IUCN Red List Assessment Data  

.

Parameter  

Estimate

Reliability

Extent of Occurrence  

2,400,000 km²

high

trend  

stable

high

Area of Occupancy  

0.12 km²

high

trend  

decreasing

medium

Number of Mature Individuals  

250

high

trend  

stable

high

Number of sub-populations  

1

high

Number of locations  

1

high

Largest sub-population  

250

high

Generation time  

30.0 years

medium

Global population share  

less than 1%

high

Level of genetic exchange  

low

medium

Population type  

Population visiting Australian territory

IUCN Red List Status 2010  

Vulnerable A4bd

Reason if Threatened or Near Threatened  

Population decline approaching 20-29% over three generations (90 years) currently under way

IUCN Red List Status 2000  

Vulnerable A4bd

Reason if changed in 2010  

Initial declines intensifying

IUCN Red List Status 1990  

Near Threatened A4bd

Reason if changed in 2000  

Initial declines intensifying

Current Eligibility against IUCN Red List Criteria  

.

IUCN Category

Criteria Eligibility

A

Vulnerable - current population decline 30-49% over 3 generations (90 years) estimated and projected from monitoring and levels exploitation

B

Not applicable - greater than 10 locations, not severely fragmented, population fluctuations not extreme

C

Not applicable - population greater than 10,000 mature individuals

D

Not applicable - population greater than 1,000 mature individuals, greater than 5 locations

E

Not applicable - no population viability analysis undertaken

IUCN Red List Assessment Data  

.

Parameter  

Estimate

Reliability

Extent of Occurrence  

2,400,000 km²

high

trend  

stable

high

Area of Occupancy  

2,400,000 km²

high

trend  

stable

high

Number of Mature Individuals  

250,000

medium

trend  

decreasing

high

Number of sub-populations  

7

high

Number of locations  

more than 10

high

Largest sub-population  

100,000

medium

Generation time  

30.0 years

medium

Global population share  

50-100%

high


Project Partners

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