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Rattus norvegicus

Kiore Toka

Brown Rat

Multimedia & Additional Resources

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Image:	Adult	41KB
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General Information

COMMON NAMES: Brown Rat, Norway Rat, Norwegian Rat, Sewer Rat, Water Rat; German Wanderrate

TRADITIONAL NAMES: Kiore Toka (RR); Other Polynesian - ‘Iole / ‘Iole-nui / ‘Iole-po‘o-wai (HAW, rat / big rat / water-diving rat)

GLOBAL DISTRIBUTION: NATIVE Northern China; EXOTIC EXOTIC global

COOK ISLANDS STATUS: Introduced - Recent, Naturalised; Land

SIGNIFICANCE LIST: ; Invasive - moderate, Pest - moderate

Cook Islands Distribution

View Distribution Map

Southern Group: Present Makatea: X
RR	MG	AT	MK	MT	AK	PL	TK	MN
++	-	-	-	-	-	-	-	-

Northern Group: -
TN	MH	RK	PK	NS	SW
-	-	-	-	-	-

Key to Symbols

blank	no data
-	absent	L	localised
X	extinct 'naturally'	W	widespread
XQi	quarantine intercepted	R	recent
XQe	eradicated	?	query preceding category
P	present	T?	taxonomic query
S	seasonal	nn	present, said to have no name
O	occasional	?1	present, name not investigated
++++	very common	?2	presence not verified, no name recorded
+++	common	N/A	absent, name not expected
++	uncommon
+	rare
Cook Islands islands: RR =Rarotonga, MG = Mangaia, AT =‘Ātiu, MK=Ma‘uke, MT=Miti‘āro, AK=Aitutaki, PL=Palmerston, PN=Penrhyn, MN=Manuae, TK=Takūtea, TN=Tongareva (TS=Tongaleva Spoken, TW=Tongareva Written, they say "el" but write "r"), MH=Manihiki, RK=Rakahanga, PK=Pukapuka, NS=Nassau, SW=Suwarrow. After a Polynesian name: ^=orthography query. Countries and other: FIJ=Fiji, WT=Wallis & Futuna, SAM=Samoa, TON=Tonga, NIU=Niue, CK=Cook Islands, CKM=Cook Islands Māori, FP=French Polynesia, AUS=Australs, SOC=Societies, TAH=Tahiti, TUA=Tuamotus, MQS=Marquesas, MNG=Mangareva, PIT=Pitcain group, EAS=Easter Island, HAW=Hawai‘i, NZ=New Zealand, NZM=New Zealand Māori

Scientific Taxonomy

Rattus norvegicus (Berkenhout, 1769)
TAXONOMY: ANIMALIA; CHORDATA; GNATHOSTOMATA (Jawed Vertebrates); TETRAPODA; MAMMALIA; THERIA; EUTHERIA; Rodentia; MURIDAE

Vouchers & References

Vouchers:
None Recorded.

References:
None recorded.

Data Update History (information):
zTX, zB02, zM04b

Web Resources

Citation Information

McCormack, Gerald (2007) Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga. Online at http://cookislands.bishopmuseum.org.
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