Description
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.
Data Records
The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 5,318 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
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.
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is 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 Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: ceaedba5-2105-41e4-8991-6b4c8bd7a85e. United States Geological Survey publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF-US.
Keywords
Samplingevent; Occurrence
Contacts
- Metadata Provider ●
- Originator ●
- Point Of Contact
http://orcid.org/https://orcid.org/0000-0003-1089-0230
- Originator
Geographic Coverage
The geographic coverage of this dataset consists of seven grids of plots on the Kenai National Wildlife Refuge, Kenai Peninsula, Alaska.
| Bounding Coordinates | South West [60.452, -150.905], North East [60.729, -150.351] |
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Taxonomic Coverage
Snowshoe hare grid surveys.
| Species | Lepus americanus (Snowshoe hare) |
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Temporal Coverage
| Start Date / End Date | 1983-06-14 / 2020-08-14 |
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Project Data
No Description available
| Title | Kenai National Wildlife Refuge Snowshoe Hare Grid Surveys |
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| Study Area Description | 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. |
| Design Description | The design consisted of seven grids, each a 7 x 7 grid of 49 1 m2 plots. Plots were surveyed annually. |
The personnel involved in the project:
- Author
Sampling Methods
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.
| Study Extent | 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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| Quality Control | 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. |
Method step description:
- See previous information.
Bibliographic Citations
- 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
Additional Metadata
| Purpose | 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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| Alternative Identifiers | https://doi.org/10.15468/f8tmwr |
| ceaedba5-2105-41e4-8991-6b4c8bd7a85e | |
| https://bison.usgs.gov/ipt/resource?r=fws-kenai-snowshoe-hare |