Corvus tasmanicus
– Least Concern
Taxonomy
|
Kingdom:
|
ANIMALIA
|
|
Phylum:
|
CHORDATA
|
|
Class:
|
AVES
|
|
Order:
|
PASSERIFORMES
|
|
Family:
|
CORVIDAE
|
|
Scientific Name:
|
Corvus tasmanicus
|
|
Species Authority:
|
Mathews, 1912
|
|
Synonym/s:
|
Corvus boreus Rowley, 1970
|
|
Common Name/s:
|
|
|
Taxonomic Notes:
|
Corvus tasmanicus and C. boreus (Sibley and Monroe 1990, 1993) have been lumped into C. tasmanicus following Christidis and Boles (1994). [Follow the BirdLife International link below for the data sources].
|
Assessment Information
|
Red List Category & Criteria:
|
LC ver 3.1 (2001)
|
|
Year Assessed:
|
2005
|
|
Assessor/s:
|
BirdLife International
|
|
Evaluator/s:
|
Butchart, S. & Stattersfield, A. (BirdLife International Red List Authority)
|
|
Justification:
|
This species has a large range, with an estimated global extent of occurrence of 50,000–100,000 km². The global population size has not been quantified, but it is believed to be large as the species is described as 'common' in at least parts of its range (Madge and Burn 1993, Morcombe 2000). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e., declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
|
Geographic Range
|
Range Description:
|
This species has a large range, with an estimated global extent of occurrence of 50,000–100,000 km². The global population size has not been quantified, but it is believed to be large as the species is described as 'common' in at least parts of its range (Madge and Burn 1993, Morcombe 2000). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e., declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
|
|
Countries:
|
Native:
Australia
|
Habitat and Ecology
|
System:
|
Terrestrial
|
|
List of Habitats:
|
| 1.4 | Forest - Temperate |
| 1.5 | Forest - Subtropical/Tropical Dry |
|
Bibliography
|
Bibliography:
|
Bird Reference Citations. The numbers inserted in the text accounts above (usually in bold) refer to references. For further details on these references, click on the BirdLife International link above to go to the specific species account on the BirdLife web site. In some cases, particularly in the taxonomic notes, the references are cited using the author names. Details for these can be found on the BirdLife International web site at the following two places:
For References from A–L.
For References from M–Z. BirdLife International. 2005. Threatened Birds of the World 2005. Downloaded from http://www.birdlife.org on 30/04/2005.
|
