Avian Habitat Data; Seward Peninsula, Alaska, 2012
This data product contains avian habitat data collected on the Seward Peninsula, Alaska, USA, during 21 May ? 10 June 2012. We conducted replicated 10-min surveys at 111 points located along 9 transects occurring over gradients of physical and biotic habitat conditions and recorded observations of i...
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ftdatacite:10.5066/f7f18ws3 2023-05-15T16:03:02+02:00 Avian Habitat Data; Seward Peninsula, Alaska, 2012 McNew, Lance B. Handel, Colleen M. 2015 https://dx.doi.org/10.5066/f7f18ws3 https://alaska.usgs.gov/products/data.php?dataid=5 unknown U.S. Geological Survey https://dx.doi.org/10.1890/14-1248.1 Avian abundance, Community structure, Species Richness dataset Dataset 2015 ftdatacite https://doi.org/10.5066/f7f18ws3 https://doi.org/10.1890/14-1248.1 2022-02-08T18:05:28Z This data product contains avian habitat data collected on the Seward Peninsula, Alaska, USA, during 21 May ? 10 June 2012. We conducted replicated 10-min surveys at 111 points located along 9 transects occurring over gradients of physical and biotic habitat conditions and recorded observations of individual birds identified to species. Survey points, or sites, were located approximately 500 m apart and observations of birds were limited to a maximum distance of 250 m to prevent double counting. We visited each survey site 2?3 times and assumed community closure within the survey period. Mean interval (?SD) between site-specific surveys was 5.8 ? 2.4 days. We measured 13 vegetative characteristics at 10 subsampling points associated with each bird survey location during 26 June ? 11 July 2012. Five subsampling plots were located along each of two 20-m transects with random orientation (0?359 degrees). One transect originated at the bird survey point, and the other at a point selected randomly within 250 m of the bird survey point. At each subsampling point, we estimated overlapping coverages within six vegetation classes, including alder (Alnus spp.), dwarf birch (Betula spp.), ericaceous shrubs (e.g., Empetrum, Vaccinium spp.), herbaceous, lichen (e.g., Cladonia spp.), and willow (Salix spp.) using a 0.5-m2 quadrat frame, and recorded the height of the tallest plant of each type within the sampling frame. We recorded visual obstruction (VOR), an index of vegetation of height and density, at each subsampling point measured from a distance of 2 m and at a height of 0.5 m. Analyses of these data are published in: McNew, L. B., and C. M. Handel. 2015. Evaluating species richness: biased ecological inference results from spatial heterogeneity in species detection probabilities. Ecological Applications 25: in press. http://dx.doi.org/10.1890/14-1248.1 Dataset Dwarf birch Seward Peninsula Alaska DataCite Metadata Store (German National Library of Science and Technology) Survey Point ENVELOPE(-92.082,-92.082,62.795,62.795) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Avian abundance, Community structure, Species Richness |
spellingShingle |
Avian abundance, Community structure, Species Richness McNew, Lance B. Handel, Colleen M. Avian Habitat Data; Seward Peninsula, Alaska, 2012 |
topic_facet |
Avian abundance, Community structure, Species Richness |
description |
This data product contains avian habitat data collected on the Seward Peninsula, Alaska, USA, during 21 May ? 10 June 2012. We conducted replicated 10-min surveys at 111 points located along 9 transects occurring over gradients of physical and biotic habitat conditions and recorded observations of individual birds identified to species. Survey points, or sites, were located approximately 500 m apart and observations of birds were limited to a maximum distance of 250 m to prevent double counting. We visited each survey site 2?3 times and assumed community closure within the survey period. Mean interval (?SD) between site-specific surveys was 5.8 ? 2.4 days. We measured 13 vegetative characteristics at 10 subsampling points associated with each bird survey location during 26 June ? 11 July 2012. Five subsampling plots were located along each of two 20-m transects with random orientation (0?359 degrees). One transect originated at the bird survey point, and the other at a point selected randomly within 250 m of the bird survey point. At each subsampling point, we estimated overlapping coverages within six vegetation classes, including alder (Alnus spp.), dwarf birch (Betula spp.), ericaceous shrubs (e.g., Empetrum, Vaccinium spp.), herbaceous, lichen (e.g., Cladonia spp.), and willow (Salix spp.) using a 0.5-m2 quadrat frame, and recorded the height of the tallest plant of each type within the sampling frame. We recorded visual obstruction (VOR), an index of vegetation of height and density, at each subsampling point measured from a distance of 2 m and at a height of 0.5 m. Analyses of these data are published in: McNew, L. B., and C. M. Handel. 2015. Evaluating species richness: biased ecological inference results from spatial heterogeneity in species detection probabilities. Ecological Applications 25: in press. http://dx.doi.org/10.1890/14-1248.1 |
format |
Dataset |
author |
McNew, Lance B. Handel, Colleen M. |
author_facet |
McNew, Lance B. Handel, Colleen M. |
author_sort |
McNew, Lance B. |
title |
Avian Habitat Data; Seward Peninsula, Alaska, 2012 |
title_short |
Avian Habitat Data; Seward Peninsula, Alaska, 2012 |
title_full |
Avian Habitat Data; Seward Peninsula, Alaska, 2012 |
title_fullStr |
Avian Habitat Data; Seward Peninsula, Alaska, 2012 |
title_full_unstemmed |
Avian Habitat Data; Seward Peninsula, Alaska, 2012 |
title_sort |
avian habitat data; seward peninsula, alaska, 2012 |
publisher |
U.S. Geological Survey |
publishDate |
2015 |
url |
https://dx.doi.org/10.5066/f7f18ws3 https://alaska.usgs.gov/products/data.php?dataid=5 |
long_lat |
ENVELOPE(-92.082,-92.082,62.795,62.795) |
geographic |
Survey Point |
geographic_facet |
Survey Point |
genre |
Dwarf birch Seward Peninsula Alaska |
genre_facet |
Dwarf birch Seward Peninsula Alaska |
op_relation |
https://dx.doi.org/10.1890/14-1248.1 |
op_doi |
https://doi.org/10.5066/f7f18ws3 https://doi.org/10.1890/14-1248.1 |
_version_ |
1766398679750541312 |