2012 Known and Probable Grizzly Bear Mortalities in the Greater Yellowstone Ecosystem

Data are preliminary and subject to change. Release of information will be limited for mortalities under investigation.

Count	Unique	Sex	Age class	Known Mortality Date	Location	Loss
56	201256	UNK	COY	4 Aug 2012	North Fork Rodent Crk, BTNF	Probable, natural, COY of radio-collared female lost between 5/29 and 10/1. Mortality date and location are approximate.
55	201255	UNK	COY	25 Jun 2012	Meadow Crk, GNF-MT	Probable, natural, 3rd of 3 COY of radio-collared female lost between 6/22 and 6/28. Mortality date and location are approximate.
54	201254	UNK	COY	2 Jun 2012	Flints Crk, GNF-MT	Probable, natural, 2nd of 3 COY of radio-collared female lost between 5/13 and 6/22. Mortality date and location are approximate.
53	201253	UNK	COY	2 Jun 2012	Flints Crk, GNF-MT	Probable, natural, 1st of 3 COY of radio-collared female lost between 5/13 and 6/22. Mortality date and location are approximate.
52	201252	UNK	COY	2 Jun 2012	Lamar River, YNP	Probable, natural, COY of radio-collared female lost between 5/14 and 6/21. Mortality date and location are approximate.
51	201251			2012	WY	Known, human-caused, under investigation.
50	201250			2012	MT	Probable, human-caused, under investigation.
49	201249	M	COY	2 Oct 2012	Mountain Crk, SNF-WY	Probable, natural, 3rd of 3 COY not accompanying adult female when she was captured and removed. Date and location are approximate.
48	201248	M	COY	2 Oct 2012	Mountain Crk, SNF-WY	Probable, natural, 2nd of 3 COY not accompanying adult female when she was captured and removed. Date and location are approximate.
47	201247	M	COY	2 Oct 2012	Mountain Crk, SNF-WY	Probable, natural, 1st of 3 COY not accompanying adult female when she was captured and removed. Date and location are approximate.
46	201246	F	Adult	20 Oct 2012	Pacific Crk, BTNF-WY	Known, human-caused, management removal for repeated property damage and obtaining multiple food rewards.
45	201245	M	Adult	12 Oct 2012	Cartridge Crk, SNF-WY	Known, human-caused, self-defense kill by hunters.
44	201244	M	Adult	9 Oct 2012	Roaring Fork, BTNF-WY	Known, human-caused, self-defense kill by hunters.
43	201243			2012	WY	Probable, human-caused, under investigation.
42	201242			2012	WY	Known, human-caused, under investigation.
41	201241			2012	WY	Known, human-caused, under investigation.
40	201240			2012	WY	Known, human-caused, under investigation.
39	201239	M	Adult	Sep 2012	Spread Crk, GTNP	Known, undetermined cause, carcass was found near highway and had been partially consumed. Likely died during September.
38	201238	UNK	COY	24 Sep 2012	Thorofare Crk, BTNF-WY	Probable, human-caused, 2nd of 2 COY whose mother was killed in self-defense by hunter.
37	201237	UNK	COY	24 Sep 2012	Thorofare Crk, BTNF-WY	Probable, human-caused, 1st of 2 COY whose mother was killed in self-defense by hunter.
36	201236	F	Adult	24 Sep 2012	Thorofare Crk, BTNF-WY	Known, human-caused, adult female with 2 COY killed by hunter in self-defense.
35	201235	F	Adult	22 Sep 2012	South Fork Shoshone River, PR-WY	Known, human-caused, management removal for repeated conflicts at numerous residences and obtaining multiple food rewards.
34	201234	UNK	COY	17 Sep 2012	East Fork Wind River, SNF-WY	Probable, human-caused, COY of female that was killed by hunters in self-defense.
33	201233	F	Adult	17 Sep 2012	East Fork Wind River, SNF-WY	Known, human-caused, self-defense kill by hunter of female accompained by 1 COY.
32	201232	M	Subadult	18 Sep 2012	Greybull River, PR-WY	Known, human-caused, management removal for obtaining multiple food rewards at residences and damaging apiaries.
31	~~201231~~	F	COY			No zoo could be found to take this COY. She was instrumented and released back into the ecosystem and her fate is being monitored. She is not counted as a mortality at this time.
30	201230	F	Adult	16 Sep 2012	Bear Crk, PR-MT	Known, human-caused, management removal for numerous cattle depredations.
29	201229	M	Adult	17 Sep 2012	North Piney Crk, PR-WY	Known, human-caused, management removal for repeated cattle depredations.
28	201228	M	Adult	13 Sep 2012	Horse Crk, PR-WY	Known, human-caused, management removal for repeated property damage and obtaining multiple food rewards.
27	201227	M	Adult	12 Sep 2012	Pacific Crk, BTNF	Known, human-caused, management removal for repeated property damage and obtaining multiple food rewards.
26	201226	UNK	Subadult	Fall, 2011	Dago Crk, BTNF-WY	Known, natural, likely killed by another bear during the fall of 2011. Carcass found and reported 5 Sept 2012. Sample submitted for DNA determination of sex.
25	201225	M	Subadult	7 Sep 2012	Eaglenest Crk, PR-WY	Known, human-caused, management removal for obtaining multiple food rewards.
24	201224	M	Adult	28 Aug 2012	Pacific Crk, BTNF-WY	Known, human-caused, management removal for repeated property damages and food rewards.
23	201223			2012	WY	Known, human-caused, under investigation.
22	201222	M	Adult	22 Aug 2012	North Fork Shoshone River, SNF-WY	Known, human-caused, road kill.
21	201221	M	Adult	17 Aug 2012	Raspberry Crk, BTNF-WY	Known, human-caused, management removal for repeated cattle depredations.
20	201220	M	Adult	3 Aug 2012	Wagon Crk, BTNF-WY	Known, human-caused, management removal for repeated cattle depredations.
19	201219	F	Adult	28 Jul 2012	Fish Crk, BTNF-WY	Known, human-caused, management removal for repeated cattle depredations.
18	201218	M	Adult	27 Jul 2012	Robbers Roost Crk, SNF-WY	Known, human-caused, killed by hikers in self-defense at close range during a surprise encounter.
17	201217	M	Subadult	5 Jun 2012	Sour Crk, YNP	Known, natural mortality of a radio-marked subadult, specific cause of death is unknown. Mortality date is midpoint between last active and first mortality signal.
16	201216	M	Subadult	22 Jun 2012	South Dry Crk, PR-MT	Known, human-caused, management removal for repeated cattle depredation.
15	201215	M	Yearling	21 Jun 2012	Snake River, GTNP	Known, human-caused, trauma from vehicle strike.
14	201214	M	Subadult	11 Jun 2012	Cherry Crk, BDNF-MT	Known, human-caused, mistaken identity kill by bow hunter.
13	201213	UNK	COY	11 Jun 2012	Lamar River, YNP	Known, natural, COY likely killed by wolves.
12	201212	UNK	COY	21 May 2012	Alum Crk, YNP	Probable, natural, COY of mother that was killed by another bear. Mortality date is approximate (midpoint between last active and first mortality signal of mother).
11	201211	UNK	COY	21 May 2012	Alum Crk, YNP	Known, natural, killed with mother by another bear. Mortality date is approximate (midpoint between last active and first mortality signal of mother).
10	201210	F	Adult	21 May 2012	Alum Crk, YNP	Known, natural, radio-marked female with 2 COY was killed by another bear, one cub dead at site, second cub probably also dead. Mortality date is approximate (midpoint between last active and first mortality signal).
9	201209	UNK	COY	21 May 2012	Jasper Crk, YNP	Probable, natural, COY of mother that was killed by another bear. Mortality date is approximate (midpoint between last active and first mortality signal of mother).
8	201208	UNK	COY	21 May 2012	Jasper Crk, YNP	Probable, natural, COY of mother that was killed by another bear. Mortality date is approximate (midpoint between last active and first mortality signal of mother).
7	201207	F	Adult	21 May 2012	Jasper Crk, YNP	Known, natural, radio-marked female with 2 COY was killed by another bear, both COY probably dead also. Mortality date is approximate (midpoint between last active and first mortality signal).
6	201206	M	Adult	19 Jan 2012	Spruce Crk, YNP	Known, natural, radio-marked bear died during winter, probably from maladies associated with old age. Mortality date is approximate (midpoint between last active and first mortality signal)
5	201205	F	Adult	31 May 2012	Yellowstone River, YNP	Known, natural, adult female was killed by another bear.
4	201204	M	Adult	25 May 2012	Gallatin River, PR-MT	Known, human-caused, shot in defense of property (dogs) at private residence.
3	201203	F	COY	10 May 2012	Horse Crk, PR-WY	Known, natural, management capture of orphaned COY at a private residence in Dubios, WY on 5/7. Cub was in poor condition and died in captivity on 5/10. The cub did not respond to feeding. Circumstances of why the cub was alone are unknown.
2	201202	F	Subadult	22 Apr 2012	Sweet Hollow Crk, PR-ID	Known, human-caused, management removal for repeated property damages and food rewards
1	201201	M	Adult	17 Apr 2012	Wood River, PR-WY	Known, human-caused, management removal for repeated sheep depredations.

Known mortality - a carcass is in hand; Probable mortality - evidence strongly suggests a mortality has occurred but no carcass is recovered.

Abbreviations: BOR = Bureau of Reclamation; BLM = Bureau of Land Management; BTNF = Bridger-Teton National Forest; COY = cub-of-the-year; CTNF = Caribou-Targhee National Forest; GNF = Gallatin National Forest; GTNP = Grand Teton National Park; IDFG = Idaho Fish and Game; MTFWP = Montana Fish, Wildlife and Parks; PR = private; SNF = Shoshone National Forest; UNK = Unknown; WRIR = Wind River Indian Reservation; WYGF = Wyoming Game and Fish; YNP = Yellowstone National Park.