GLOBEC NEP Northern California Current Bird Data NH0005, 2000-2000, 0007

Description

GLOBEC (GLOBal Ocean ECosystems Dynamics) NEP (Northeast Pacific) Northern California Current Bird Data from R/V New Horizon cruises NH0005 and 0007. As a part of the GLOBEC-Northeast Pacific project, we investigated variation in the abundance of marine birds in the context of biological and physical habitat conditions in the northern portion of the California Current System (CCS) during cruises during the upwelling season 2000. Continuous surveys of seabirds were conducted simultaneously in June (onset of upwelling) and August (mature phase of upwelling). Seabird surveys were conducted continuously during daylight, using a 300-m-wide transect strip. Within that strip, birds were counted that occurred within the 90 degree quadrant off the ship's bow that offered the best observation conditions. Observed counts of seabirds recorded as flying in a steady direction were adjusted for the effect of flight speed and direction relative to that of the ship (Spear et al., 1992; Spear and Ainley, 1997b). The effect of such flux is the most serious bias encountered during seabird surveys at sea (Spear et al., 2005). Known as random directional movement (as opposed to nonrandom directional movement, which occurs when birds are attracted or repelled from the survey vessel), this problem usually results in density overestimation because most species fly faster than survey vessels; densities of birds that fly slower or at a similar speed as the survey vessel (e.g., storm-petrels), or are flying in the same direction, are usually underestimated (Spear et al., 1992) (extracted from: David G. Ainley, Larry B. Spear, Cynthia T. Tynan, John A. Barth, Stephen D. Pierce, R. Glenn Ford and Timothy J. Cowles, 2005. Physical and biological variables affecting seabird distributions during the upwelling season of the northern California Current. Deep Sea Research Part II: Topical Studies in Oceanography, Volume 52, Issues 1-2, January 2005, Pages 123-143) For more information, see http://cis.whoi.edu/science/bcodmo/dataset.cfm?id=10053&flag=view or http://globec.whoi.edu/jg/info/globec/nep/ccs/birds%7Bdir=globec.whoi.edu/jg/dir/globec/nep/ccs/,data=globec.whoi.edu/jg/serv/globec/nep/ccs/birds.html0%7D Contact: Cynthia T. Tynan, ctynan@whoi.edu, Woods Hole Oceanographic Institution David G. Ainley, dainley@penguinscience.com, H.T. Harvey & Associates

Resources

Name Format Description Link
0 Background information from the source https://en.wikipedia.org/wiki/Global_Ocean_Ecosystem_Dynamics
0 Background information from the source https://en.wikipedia.org/wiki/Global_Ocean_Ecosystem_Dynamics
0 Background information from the source https://en.wikipedia.org/wiki/Global_Ocean_Ecosystem_Dynamics
0 Background information from the source https://en.wikipedia.org/wiki/Global_Ocean_Ecosystem_Dynamics
0 An OPeNDAP service for tabular (sequence) data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes. https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdGlobecBirds
0 Background information from the source https://en.wikipedia.org/wiki/Global_Ocean_Ecosystem_Dynamics
0 Web page to facilitate selecting subsets of the dataset https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdGlobecBirds.subset
0 ERDDAP's Make-A-Graph .html web page for this dataset. Create an image with a map or graph of a subset of the data. https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdGlobecBirds.graph
0 ERDDAP's tabledap service (a flavor of OPeNDAP) for tabular (sequence) data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for different purposes. https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdGlobecBirds
21 ERDDAP's version of the OPeNDAP .html web page for this dataset. Specify a subset of the dataset and download the data via OPeNDAP or in many different file types. https://coastwatch.pfeg.noaa.gov/erddap/tabledap/erdGlobecBirds.html

Tags

  • number
  • data
  • latitude
  • identifier
  • speed
  • ecosystems
  • biosphere
  • globec
  • longitude
  • coastal habitat
  • species
  • surface winds
  • birds
  • atmosphere
  • nep
  • biological classification
  • behavior
  • biology
  • surveyed
  • bird
  • vertebrates
  • recorded
  • coastal
  • area
  • animals/vertebrates
  • earth science
  • animals
  • marine
  • aquatic ecosystems
  • wind
  • direction
  • ocean
  • flight
  • california
  • code
  • nh0005
  • biological
  • current
  • northern
  • classification
  • ship
  • atmospheric winds
  • course
  • aquatic
  • time
  • atmospheric
  • surface
  • habitat
  • winds
  • marine habitat
  • unadjusted
  • transect

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