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Louisiana black bear ( 英語 )

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The Louisiana black bear (Ursus americanus luteolus), one of 16 subspecies of the American black bear, is found in parts of Louisiana, mainly along the Mississippi River Valley and the Atchafalaya River Basin. It was classified as 'threatened' under the U.S. Endangered Species Act from 1992–2016. The validity of this subspecies has been repeatedly debated.[5]

Description

The subspecies does not have a substantially different appearance than the nominate U. americanus americanus, but the skull is relatively long, narrow and flat and the molars are proportionately large.[6] The fur color is usually black, but a cinnamon phase is known to exist.[7]

Distribution and habitat

The Louisiana black bear historically occurred in Louisiana, Mississippi, East Texas and Arkansas.[5]

Four areas are currently known to have populations of the black bear:[8]

The Louisiana black bear can travel for long distances and has been sighted in many areas of Louisiana not normally considered bear habitat.[8] Occurrences are reported from East Texas and subpopulations have expanded into Mississippi.[9] Black bears have been sighted in Kisatchie National Forest,[10] Allen Parish, Natchitoches Parish, East Baton Rouge,[11] and Bossier City.

Conservation

While the IUCN classifies the conservation situation of the black bear as a species as Least Concern, the Louisiana black bear as a subspecies was listed as 'threatened' under the U.S. Endangered Species Act in 1992.[3] Under this ruling, all bears within the historic range of the Louisiana black bear, from eastern Texas to southern Mississippi, have been protected.[3] On April 11, 2016, this protection of the Louisiana black bear was eliminated as were the related Similarity-of-Appearance Protections for the American black bear.[4]

Loss of habitat was the primary reason the bear was placed on the federal endangered species list. Programs and initiatives have resulted in the conservation and restoration of over 600,000 acres (240,000 ha) of forestland in the Mississippi River floodplain of Louisiana. The Louisiana Department of Wildlife and Fisheries and the U.S. Fish and Wildlife Service have acquired land for Wildlife Management Areas and National Wildlife Refuges. Reforestation on private property has been accomplished through U.S.D.A. programs such as the Wetlands Reserve Program and Conservation Reserve Program,[12] the American Forest Foundation, as well as through programs of private conservation organizations such as the Black Bear Conservation Coalition (BBCC),[13] The Nature Conservancy and Ducks Unlimited.

References

  1. ^ "NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved 31 March 2022.
  2. ^ "Louisiana black bear (Ursus americanus luteolus)". Environmental Conservation Online System. U.S. Fish & Wildlife Service. Retrieved 1 May 2023.
  3. ^ a b c 57 FR 588
  4. ^ a b USFWS (11 March 2016). "Removal of the Louisiana Black Bear From the Federal List of Endangered and Threatened Wildlife and Removal of Similarity-of-Appearance Protections for the American Black Bear". Federal Register. 81 (48): 13124–13171. Retrieved 1 May 2023.
  5. ^ a b Garshelis, D.L.; Scheick, B.K.; Doan-Crider, D.L.; Beecham, J.J. & Obbard, M.E. (2017) [errata version of 2016 assessment]. "Ursus americanus". IUCN Red List of Threatened Species. 2016: e.T41687A114251609. doi:10.2305/IUCN.UK.2016-3.RLTS.T41687A45034604.en. Retrieved 19 February 2022.
  6. ^ Texas Parks and Wildlife Department. Louisiana Black Bear (PDF) (Report).
  7. ^ Mammals of America. Harold Elmer Anthony University Society, Incorporated. 1917. pp. 98–. Retrieved 2017-03-07.
  8. ^ a b "Louisiana Black Bear habitat". United States Fish and Wildlife Service. Retrieved 2017-03-06.
  9. ^ "Mississippi man sentenced in Louisiana black bear killing". The Clarion-Ledger. Retrieved 2017-03-07.
  10. ^ "Kisatchie Wildlife, Black Bear sightings". USDA. Retrieved 2017-03-06.
  11. ^ "Black bear spotted in Central neighborhood captured by Wildlife and Fisheries officials". The Advocate. Retrieved 2019-02-12.
  12. ^ "Forestry assistance programs". Thought.co. Retrieved 2017-03-07.
  13. ^ "Black Bear Conservation Coalition". Black Bear Conservation Coalition. Retrieved 2017-03-07.
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Louisiana black bear: Brief Summary ( 英語 )

由wikipedia EN提供

The Louisiana black bear (Ursus americanus luteolus), one of 16 subspecies of the American black bear, is found in parts of Louisiana, mainly along the Mississippi River Valley and the Atchafalaya River Basin. It was classified as 'threatened' under the U.S. Endangered Species Act from 1992–2016. The validity of this subspecies has been repeatedly debated.

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