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The primary reference for the occurrence and distribution of Mammals in Southeast Alaska is Mammals and Amphibians of Southeast Alaska (MacDonald and Cook 2007).

Humans (Primates)

Hominidae (Humans: 1 species)

Scientific NameCommon NameSummary
Homo sapiensHumanPresent in the area for over nine thousand years, based on archaeological evidence found at different locations.

Rodents (Rodentia)

Sciuridae (Squirrels and Marmots: 4 species)

Scientific NameCommon NameSummary
Glaucomys sabrinusNorthern Flying SquirrelApparently present on much of the mainland from Upper Lynn Canal south, but perhaps not the Northern Gulf Coast. Also present on several islands near the mainland, as well as Prince of Wales Island (and other associated smaller islands), the home range an endemic subspecies occurs.
Marmota caligataHoary MarmotFound almost exclusively on the mainland; some populations can be found at sea level (e.g., in Juneau), while others (most?) live in subalpine and alpine meadows.
Spermophilus parryiiArctic Ground SquirrelKnown from the mountainous border area outside of Haines and Skagway
Tamiasciurus hudsonicusRed SquirrelNative to the mainland and many of the southern inner islands. Introduced to Admiralty, Baranof, and Chichagof Islands, and now spread to other associated islands.

Castoridae (Beavers: 1 species)

Scientific NameCommon NameSummary
Castor canadensisBeaverPresent throughout most of the region where there is suitable habitat. Apparently poorly documented with specimens, however.

Dipodidae (Jumping Mice: 2 species)

Scientific NameCommon NameSummary
Zapus hudsoniusMeadow Jumping MouseReported from Haines, Yakutat, and Revillagigedo Island.
Zapus princepsWestern Jumping MouseFound on the mainland at least as far north as the Taku River.

Cricetidae (Voles and Lemmings: 11 species)

Scientific NameCommon NameSummary
Lemmus trimucronatusBrown LemmingPrimary range of this species is more northern or interior than the region, but it is known from a pair of mountain sites near the border outside of Haines. Also one specimen in Arctos from Woronkofski Island has been identified as this species.
Microtus longicaudusLong-tailed VolePresent throughout the region except for Baranof Island and Kruzof Island. An endemic subspecies is known from Coronation, Forrester, and Warren Islands.
Microtus oeconomusRoot VoleFound on the from the Northern Gulf Coast to the east side of upper Lynn Canal. Also on Chichagof Islands along with other associated smaller islands, and Baranof Island. Fossil remains have been found on Prince of Wales Island. The southern limit of this species is in Southeast Alaska.
Microtus pennsylvanicusMeadow VoleKnown from at least three major mainland river valleys, the Chilkat, Taku and Stikine. Also found on Admiralty Island, and other islands near the mouth of the Stikine River.
Myodes gapperiSouthern Red-backed VoleFound along the mainland as far north as the Stikine River. Also present on many of the southern inner islands.
Myodes rutilusNorthern Red-backed VolePresent on the mainland at least as far south as LeConte Bay (according to MacDonald Cook 2007 - but arctos records show collections identified as this species from as far south as the southern mainland border). Reported from two islands, Douglas Island and Young Island (the latter in Yakutat Bay)
Neotoma cinereaBushy-tailed WoodratApparently no recent collections - there no mapped collections from the region are in Arctos. MacDonald and Cook (2007) not that this species has previously been reported from along the Unuk, Stikine, and Taku Rivers, plus captures on nunataks in the Juneau Ice Field, all from the 1960s or earlier.
Ondatra zibethicusCommon MuskratApparently widespread, but uncommon on the mainland and inner islands, with reports from Yakutat down to Revillagigedo Island including at Haines and one from Admiralty Island. Most reports seem to be from at or near the Stikine River (including delta and nearby larger islands).
Peromyscus keeniNorthwestern DeermouseA species primarily of the Pacific Northwest Coast, it is widespread and common throughout Southeast Alaska except western Glacier Bay and the Northern Gulf Coast. This species is known from all the major islands and many of the secondary islands.
Phenacomys intermediusWestern Heather VoleA single collection from the Chilkat Mountains near Excursion Inlet and collections from mountains near Hyder are the only ones known from the region so far, though it is probable this species occurs elsewhere in the mountains near the Canadian Border.
Synaptomys borealisNorthern Bog LemmingKnown on the mainland from Haines and Skagway south. Also scattered reports from some of the southern inner islands (including Kuiu Island).

Muridae (Old World Rats and Mice: 2 species)

Scientific NameCommon NameSummary
Mus musculusHouse MouseThere are apparently few collections of this introduced species from the region, with most of them from the 1940s or earlier(?). One 2006 collection in Arctos from the Mendenhall Wetlands is recorded as this species. Current status is not well known.
Rattus norvegicusBrown RatIntroduced species so far only known from near populated areas (where it is associated with human activity?).

Erethizontidae (Porcupines: 1 species)

Scientific NameCommon NameSummary
Erethizon dorsatumNorth American PorcupineKnown from the mainland and some of the near islands. Contrary to the ADF&G page for this species (which states they occur everywhere except the [Southern Outer Islands]), Porcupines are not known from Baranof Island nor probably Chichagof Island. There are also no collections from Admiralty Island, nor many of the other inner islands.

Hares and Pikas (Lagomorpha)

Leporidae (Hares: 1 species)

Scientific NameCommon NameSummary
Lepus americanusSnowshoe HareKnown from the northern mainland, apparently primarily along transboundary rivers from the Taku River north (including Glacier Bay and up to Yakutat. An introduced population is present on Douglas Island.

Ochotonidae (Pikas: 1 species)

Scientific NameCommon NameSummary
Ochotona collarisCollared PikaCurrently known only from White Pass on the border out of Skagway, it is possible they may occur in other mountainous areas along the border.

Shrews (Soricomorpha)

Soricidae (Shrews: 4 species)

Scientific NameCommon NameSummary
Sorex alaskanusGlacier Bay Water ShrewKnown from only three collections in the vicinity of Gustavus and Glacier Bay. May be a subspecies of American Water Shrew (Sorex palustris).
Sorex cinereusMasked ShrewFound throughout the region except the southern outer islands and a few inner islands that are not especially close to the mainland.
Sorex monticolusDusky ShrewThroughout the region except for the northern outer islands.
Sorex palustrisAmerican Water ShrewMost of the few collections are from the mainland between Hyder and Haines. An additional collection has been made on Wrangell Island, and there are reports from a couple of other inner islands.

Bats (Chiroptera)

Vespertilionidae (Evening Bats: 7 species)

Scientific NameCommon NameSummary
Lasionycteris noctivagansSilver-haired BatSoutheast Alaska seems to be at the northern edge of this species' range and distribution in the region is poorly known. Only a few specimens have been collected from the region, including Ketchikan, Wrangell, and Petersburg. More recently, acoustic monitoring has shown they are present at Gustavus.
Lasiurus cinereusHoary BatThis species is so far known only from calls detected by passive acoustic monitoring. This monitoring has been going on since 2012(?) throughout the region as part of a project run by the ADF&G (per talk given by Karen Blejwas in Sitka, 10 March 2014).
Myosotis yumanensisYuma MyotisKnown from extreme southeastern part of region (from a paper published in 2014 in "Northwestern Naturalist" by Olson, MacDonald, and Blejwas).
Myotis californicusCalifornia MyotisKnown primarily from the southern outer islands, and the El Capitan Cave area of Prince of Wales Island in particular. They may be more widespread in the region (and there is at least one report from northern Southeast) - recent and on-going work by the Alaska Department of Fish and Game (non-game division) may reveal more about the distribution of this species in the region.
Myotis keeniiKeen's Myotis
Myotis lucifugusLittle Brown BatCommon, occasionally found in attics.
Myotis volansLong-legged Myotis

Carnivores (Carnivora)

Ursidae (Bears: 2 species)

Scientific NameCommon NameSummary
Ursus americanusAmerian Black Bear
Ursus arctosBrown BearCommon from sea level to alpine, except on southern islands where it does not typically occur.

Canidae (Dog: 3 species)

Scientific NameCommon NameSummary
Canis latransCoyotePresent on the mainland.
Canis lupusWolf
Vulpes vulpesRed FoxIntroduced to islands in southeast for fur, no populations are known to have persisted. There are second-hand reports of single animals from North Baranof and West Chichagof.

Mustelidae (Weasel: 9 species)

Scientific NameCommon NameSummary
Enhydra lutrisSea Otter
Gulo guloWolverine
Lontra canadensisNorth American River Otter
Martes americanaAmerican Marten
Martes caurinaPacific Marten
Martes pennantiFisher
Mustela ermineaErmine
Mustela nivalisLeast WeaselUnsubstantiated in Southeast Alaska.
Neovison visonAmerican Mink

Otariidae (Eared Seals: 3 species)

Scientific NameCommon NameSummary
Callorhinus ursinusNorthern Fur Seal
Eumetopias jubatusSteller's Sea Lion
Zalophus californianusCalifornia Sea Lion

Phocidae (Seals: 3 species)

Scientific NameCommon NameSummary
Mirounga angustirostrisNorthern Elephant Seal
Phoca vitulinaHarbor Seal
Pusa hispidaRinged SealA sick yearling seal thought to be this species was found near Yakutat in 2012. This is well outside expected range, and a DNA sample was reportedly sent for id confirmation: [1]

Felidae (Cat: 2 species)

Scientific NameCommon NameSummary
Lynx canadensisCanadian Lynx
Puma concolorCougar

Procyonidae (Racoon: 1 species)

Scientific NameCommon NameSummary
Procyon lotorRacoon

Hoofed Mammals (Artiodactyla)

Bovidae (Sheep and Goats: 2 species)

Scientific NameCommon NameSummary
Oreamnos americanusMountain GoatPresent on the mainland at higher elevations. Introduced to several islands, currently established on Baranof Island and Revillagigedo Island.
Ovis dalliDall's Sheep

Cervidae (Deer and Relatives: 4 species)

Scientific NameCommon NameSummary
Alces americanusMoosePrimarily present on mainland and near islands. Occasionally found on Chichagof Island when individuals swim across Icy Straight.
Cervus canadensisRoosevelt ElkIntroduced to Etolin Island. Population has grown, and animals have begun to move to other nearby islands including Zarembo Island. They have also been reported from Kuiu Island.
Odocoileus hemionusSitka Black-tailed DeerVery common. From sea level to alpine when snow conditions allow. Concentrated at low elevations and on south-facing slopes in heavy snow years.
Rangifer tarandusCaribouLikely to occur occasionally in Southeast Alaska, but Unsubstantiated.

Whales (Cetacea)

Balaenidae (Right Whale: 1 species)

Scientific NameCommon NameSummary
Eubalaena japonicaNorth Pacific Right Whale

Balaenopteridae (Rorquals: 5 species)

Scientific NameCommon NameSummary
Balaenoptera acutorostrataCommon Minke Whale
Balaenoptera borealisSei Whale
Balaenoptera musculusBlue Whale
Balaenoptera physalusFin Whale
Megaptera novaeangliaeHumpback WhaleSee parasites: Coronula diadema, Cyamus boopis and Conchoderma auritum.

Delphinidae (Oceanic Dolphins: 5 species)

Scientific NameCommon NameSummary
Globicephala macrorhynchusShort-finned Pilot Whale
Grampus griseusRisso's DolphinGenerally expected to be off the continental shelf, with a sighting from as far north as off of Shelikof Bay.
Lagenorhynchus obliquidensPacific White-sided Dolphin
Orcinus orcaKiller Whale
Pseudorca crassidensFalse Killer Whale

Eschrichtiidae (Gray Whale: 1 species)

Scientific NameCommon NameSummary
Eschrichtius robustusGray WhaleThis whale is most easily seen in spring and fall, in shallow waters where it feeds on or near the bottom. However, it is known to overwinter and feed on fish higher in the water column. Some parasites are Cyamus scammoni, Cyamus ceti, Cyamus kessleri, and Cryptolepas rachianecti.

Monodontidae (Beluga Whale: 1 species)

Scientific NameCommon NameSummary
Delphinapterus leucasBeluga

Phocoenidae (Porpoises: 2 species)

Scientific NameCommon NameSummary
Phocoena phocoenaHarbor Porpoise
Phocoenoides dalliDall's Porpoise

Physeteridae (Sperm Whales: 2 species)

Scientific NameCommon NameSummary
Kogia brevicepsPygmy Sperm Whale
Physeter catodonSperm Whale

Ziphiidae (Beaked Whales: 3 species)

Scientific NameCommon NameSummary
Berardius bairdiiBaird's Beaked Whale
Mesoplodon stejnegeriStejneger's Beaked Whale
Ziphius cavirostrisCuvier's Beaked Whale