說明
Densities of snowshoe hares (Lepus americanus Erxleben, 1777) were measured over time to document cyclic changes in hare abundance on the Kenai National Wildlife Refuge. Pellet counts were conducted annually on 5 grids of 49 1 m2 permanent pellet plots. All pellets within the 1 m2 plot were counted and removed. Pellet counts were averaged annually for each grid as an index of snowshoe hare abundance.
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 5,318 筆紀錄。
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。:
USFWS Kenai National Wildlife Refuge. 2020. Data from Occurrence data from Kenai National Wildlife Refuge snowshoe hare grid surveys. Contributed by Bowser, M. and Canterbury, C.
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: ceaedba5-2105-41e4-8991-6b4c8bd7a85e。 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
Samplingevent; Occurrence
聯絡資訊
- 元數據提供者 ●
- 出處 ●
- 連絡人
http://orcid.org/https://orcid.org/0000-0003-1089-0230
- 出處
地理涵蓋範圍
The geographic coverage of this dataset consists of seven grids of plots on the Kenai National Wildlife Refuge, Kenai Peninsula, Alaska.
| 界定座標範圍 | 緯度南界 經度西界 [60.452, -150.905], 緯度北界 經度東界 [60.729, -150.351] |
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分類群涵蓋範圍
Snowshoe hare grid surveys.
| Species | Lepus americanus (Snowshoe hare) |
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時間涵蓋範圍
| 起始日期 / 結束日期 | 1983-06-14 / 2020-08-14 |
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計畫資料
無相關描述
| 計畫名稱 | Kenai National Wildlife Refuge Snowshoe Hare Grid Surveys |
|---|---|
| 研究區域描述 | The study area consisted of seven grids of plots within the Kenai National Wildlife Refuge on the western Kenai Peninsula. From 1983 to 2020, grids were surveyed annually. |
| 研究設計描述 | The design consisted of seven grids, each a 7 x 7 grid of 49 1 m2 plots. Plots were surveyed annually. |
參與計畫的人員:
- 作者
取樣方法
Snowshoe hare Pellet counts were conducted on permanent pellet plots established at each of the 49 plot centers on the 5 permanent snowshoe hare grids. Each year, all pellets within the 1m2 plot were counted and removed.
| 研究範圍 | The study extent included seven grids of plots within the Kenai National Wildlife Refuge on the western Kenai Peninsula. From 1983 to 2020, grids were surveyed annually. |
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| 品質控管 | In situations where permanent plots were damaged or could not be relocated, data were recorded as “NA” and plots were re-established. In cases where plots were not surveyed in any one year, the following year’s data, which would have included counts for two years of pellet deposition, were marked as missing data (“NA”). Records missing data were excluded from this dataset. |
方法步驟描述:
- See previous information.
引用文獻
- Krebs C J, Kielland K, Bryant J, O’Donoghue M, Doyle F, McIntyre C, DiFolco D, Berg N, Carriere S, Boonstra R, Boutin S, Kenney A J, ReidDonald G, Bodony K, Putera J, Timm H K, Burke T. Synchrony in the snowshoe hare (Lepus americanus) cycle in northwestern North America, 1970–2012. Canadian Journal of Zoology 91:562-572. doi:10.1139/cjz-2013-0012. https://doi.org/10.1139/cjz-2013-0012
額外的詮釋資料
| 目的 | Cyclic changes in hare abundance are one of the most ecologically important cycles in the North American boreal forest, including on the forested portions of the Kenai National Wildlife Refuge. This survey documents the hare cycle on the northern portion of the Kenai National Wildlife Refuge. |
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| 替代的識別碼 | https://doi.org/10.15468/f8tmwr |
| ceaedba5-2105-41e4-8991-6b4c8bd7a85e | |
| https://bison.usgs.gov/ipt/resource?r=fws-kenai-snowshoe-hare |