說明
This data reports on the approximate locations and methods of discovery of 530 polar bear (Ursus maritimus) maternal dens observed in the Beaufort and Chukchi seas and neighboring areas between 1910 and 2018, and archived partly by the U.S. Geological Survey, Alaska Science Center, and partly by the U.S. Fish and Wildlife Service, Marine Mammals Management, in Anchorage, Alaska. Data fields include a unique and permanent USGS identifier for each record, the year when the adult would have been expected to depart the den with young, an index of whether the maternal den was confirmed or probable, coordinates of the den, substrate that each den occurred on, the agency source of each record, method of discovery of each den, method used to determine the position of each den, and estimated position uncertainty. Data were collected through standardized VHF aircraft surveys and satellite radio telemetry, field research activities in polar bear habitat, and anecdotal reports from other government agencies, coastal residents, and industry personnel. The polar bear maternal den records presented here supersede an earlier version of these data (Durner and others, 2010)
資料紀錄
此資源出現紀錄的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 530 筆紀錄。
亦存在 1 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。
此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本，以便利追蹤其隨時間的變更。
版本
以下的表格只顯示可公開存取資源的已發布版本。
如何引用
研究者應依照以下指示引用此資源。:
Durner, G. M., 2010, Catalogue of Polar Bear (Ursus maritimus) maternal den locations in the Beaufort and Chukchi seas and nearby areas, 1910-2018 (ver. 2.0, January, 2020): U.S. Geological Survey data release, https://doi.org/10.5066/P9RPHH50
權利
研究者應尊重以下權利聲明。:
此資料的發布者及權利單位為 United States Geological Survey。 To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
GBIF 註冊
此資源已向GBIF註冊，並指定以下之GBIF UUID: a28eb0fc-73f3-471e-b927-cc58f576c9e0。 United States Geological Survey 發佈此資源，並經由GBIF-US同意向GBIF註冊成為資料發佈者。
關鍵字
Occurrence; Observation; Occurrence
聯絡資訊
- 出處 ●
- 連絡人
http://orcid.org/0000-0002-3370-1191
地理涵蓋範圍
Beaufort Sea and Chukchi Sea of northern Alaska, Canada, and Russia
| 界定座標範圍 | 緯度南界 經度西界 [63.367, -22.849], 緯度北界 經度東界 [83.521, 162.839] |
|---|
引用文獻
- Durner, G.M., Amstrup, S.C., Atwood, T.C., Douglas, D.C., Fischbach, A.S., Olson, J.W., Rode, K.D., and Wilson, R.R., 2019, Catalogue of polar bear (Ursus maritimus) maternal den locations in the Beaufort and Chukchi Seas and nearby areas, 1910–2018: U.S. Geological Survey Data Series 1121 12 p. including appendixes, https://doi.org/10.3133/ds1121 https://doi.org/10.3133/ds1121
- Olson JW, Rode KD, Eggett D, Smith TS and others (2017) Collar temperature sensor data reveal long-term patterns in southern Beaufort Sea polar bear den distribution on pack ice and land. Mar Ecol Prog Ser 564:211-224. https://doi.org/10.3354/meps12000 https://doi.org/10.3354/meps12000
- Karyn D Rode, Jay Olson, Dennis Eggett, David C Douglas, George M Durner, Todd C Atwood, Eric V Regehr, Ryan R Wilson, Tom Smith, Michelle St. Martin, Den phenology and reproductive success of polar bears in a changing climate, Journal of Mammalogy, Volume 99, Issue 1, 1 February 2018, Pages 16–26, https://doi.org/10.1093/jmammal/gyx181 https://doi.org/10.1093/jmammal/gyx181
- Durner, G.M., Fischbach, A.S., Amstrup, S.C., and Douglas, D.C., 2010, Catalogue of polar bear (Ursus maritimus) maternal den locations in the Beaufort Sea and neighboring regions, Alaska, 1910–2010: U.S. Geological Survey Data Series 568, 14 p. https://doi.org/10.3133/ds568
- Fischbach, A.S., Amstrup, S.C. & Douglas, D.C. Polar Biol (2007) 30: 1395. https://doi.org/10.1007/s00300-007-0300-4 https://doi.org/10.1007/s00300-007-0300-4
額外的詮釋資料
Marine, harvested by OBIS
| 替代的識別碼 | a28eb0fc-73f3-471e-b927-cc58f576c9e0 |
|---|---|
| https://www.sciencebase.gov/catalog/item/53973bf8e4b0f7580bc0a969 | |
| https://www1.usgs.gov/obis-usa/ipt/resource?r=usgs_asc_polarbearmaternaldens_20150129 |