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Avian Point Count Surveys from Yáláƛi (Goose Island) Archipelago, British Columbia, Canada in 2011

<p>This file contains some data used in the article, "<em>Comparing historical and contemporary observations of avian fauna across 75 years on the Y&aacute;l&aacute;ƛi (Goose Island) Archipelago, British Columbia, Canada</em>" by Obrist et al. currently in peer-review as a Nature Note at Ecology and Evolution. A DOI to the article will be added upon publication. Specifically, these data refer to the <u>2011 Surveys by Simon Fraser University (SFU) Researchers. </u></p> <ul> <li>Avian point count surveys were conducted in 2011 at 50 locations across the six main islands of Y&aacute;l&aacute;ƛi, the Goose Island Archipelago (i.e., Goose, Gosling, Gull, Duck, Snipe, and Swan Island).</li> <li>Locations were chosen to replicate surveys within the four main habitat types outlined by Charles J. Guiguet (1953) (i.e., climax forest, ecotone, muskeg, meadow).</li> <li>Points were surveyed three times during the breeding season, between May 12th and June 2nd, 2011.</li> <li>The date, survey number, start time, point ID, temperature, and weather were recorded for each point count.</li> <li>A single observer recorded all birds seen and heard within a 100 m radius of each point for 10 minutes, separating all observations into minute-long intervals.</li> <li>The distance between the observer (point) and bird was estimated for each observation.</li> <li>Point counts were conducted within five hours of sunrise.</li> <li>Protocols based on Huff et al. (2000)&nbsp;</li> </ul> <p>Please see the article at DOI for a more comprehensive description of the data collection and processing.&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p> <p><span><strong>File: GooseIslandBirds_Data.xlsx</strong></span></p> <p>This excel file contains the following sheets:&nbsp;</p> <p>1.) Relative Abundance Comparisons: The comparisons of totals between 2011 survey data and data collected by Charles Guiguet (1953).&nbsp;</p> <p>2.) Point Count Summaries: Shows the way the 2011 totals in Sheet 1 (Relative Abundance Comparisons) was calculated, showing the total abundance for each species for each of the 3 visits, and the total from the Casual Observations sheet.&nbsp;</p> <p>3.) Raw Point Counts</p> <p>4.) Casual Observations <strong>(Caution: observations beyond line 457 are considered duplicates of individuals already accounted for on point counts).</strong></p> <p>5.) Locations</p> <p>6.) Metadata <strong>(READ FIRST)</strong></p>