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

Bar-tailed Godwit (western Alaskan)

Subspecies Conservation Summary

Image  
Bar-tailed Godwit (western Alaskan)

Image copyright Glenn Ehmke

click image to enlarge

Map of Distribution  
Bar-tailed Godwit (western Alaskan)

Image copyright to Glenn Ehmke, Birds Australia

click image to enlarge

Download data (.csv file)

Limosa lapponica baueri

Scolopacidae

Population type  

Population visiting Australia

IUCN Red List Status 2010  

Vulnerable A3c+4bc

Environmental Protection and Biodiversity Conservation Act Status  

Not listed

Reason if Threatened or Near Threatened  

Suspected recent and ongoing declines of 30-49% in 3 generations (29 years) based on survey data and habitat loss

IUCN Red List Status 2000  

Near Threatened A3c

Reason if changed in 2010  

Habitat loss intensifying

IUCN Red List Status 1990  

Least Concern

Reason if changed in 2000  

Population declines first recorded

Current Eligibility against IUCN Red List Criteria  

.

IUCN Category

Criteria Eligibility

A

Vulnerable - current and anticipated population declines 30-49% over periods of 3 generations (29 years) estimated and projected from monitoring and deteriorating habitat quality

B

Not applicable - EOO greater than 20,000 km², AOO greater than 2,000 km²

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   

7,500,000 km²

high

trend  

stable

high

Area of Occupancy  

8,100 km²

low

trend  

stable

medium

Number of Mature Individuals  

61,000

medium

trend  

decreasing

high

Number of sub-populations  

1

high

Number of locations  

greater than 10

high

Largest sub-population  

61,000

medium

Generation time  

9.7 years

high

Global population share  

26-50%

high

Level of genetic exchange  

nil

high


Project Partners

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

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