U.S. Geological Survey - Alaska Science Center 20221209 tabular digital data Data Supporting Studies of Brant and Other Waterfowl Disturbance Behavior, Distribution, and Diet at Izembek Lagoon, Alaska, 1985-1988 . Anchorage, Alaska U.S. Geological Survey, Alaska Science Center Suggested Citation: U.S. Geological Survey - Alaska Science Center, 2022, Data supporting studies of brant and other waterfowl disturbance behavior, distribution, and diet at Izembek Lagoon, Alaska, 1985-1988: U.S. Geological Survey data release, https://doi.org/10.5066/P9B98AK4 https://doi.org/10.5066/P9B98AK4 This data package presents legacy data collected during 1985-1988 at Izembek Lagoon on the western end of the Alaska Peninsula. The data were collected in support of a multi-year study focused on aircraft disturbance of waterfowl, particularly Black Brant, Emperor Geese, and Cackling Geese. The study was conducted at Izembek Lagoon and included several study sites within the lagoon: Halfway Point, Grant Point, Outer Marker, Quarter Point, Applegate Cove, Norma Bay, Round Island, and Banding Island. The primary objectives of the diet study were to 1) assess the diet of brant staging at Izembek Lagoon, 2) analyze the nutritional quality of brant foods to determine selection patterns for both plants and plant parts, and 3) determine the distribution and abundance of eelgrass. The raw data are provided in a .CSV format, however, PDF digital scans of original field data sheets, tables, figures, and maps are also available upon request. Between 1985-1988, biologists with the USFWS Special Studies Program (precursor to USFWS Alaska Region departments and ultimately the Ecosystems Office at the USGS) collected biological and observational information on waterbirds at Izembek Lagoon, Alaska. Izembek Lagoon contains one of the largest eelgrass beds in the world and the importance of this resource to waterfowl has led to its designation as a wetland of international importance (RAMSAR). Long-term studies on waterfowl productivity and behavior allow scientists to evaluate the health of waterfowl populations and the environments supporting them. 1985 1988 observed Complete None planned Izembek Lagoon, Alaska -163.58 -161.41 55.72 54.78 USGS Metadata Identifier USGS:ASC501 ISO 19115 Topic Category Biota Environment NASA GCMD Earth Science Keyword Thesaurus Animals/Vertebrates Ducks/Geese/Swans Animal ecology and behavior USGS CSA Biocomplexity Thesaurus Waterfowl Disturbance Ecosystems Social behavior Public aircraft USGS Thesaurus Wildlife Ecology Coastal ecosystems Animal behavior Field inventory and monitoring Field experiments Mitigation of coastal hazards Migration Biological productivity None Black Brant Cackling Goose Greater White-fronted Goose USGS Geographic Names Information System (GNIS) Alaska Alaska Peninsula Protected Areas Database of the United States (PAD-US) Izembek Lagoon Cove Island Grant Point Applegate Cove Norma Bay Round Island none Halfway Point Outer Marker Quarter Point Banding Island None Brant Goose Cackling Goose Greater White-fronted Goose ITIS Integrated Taxonomic Information System Unknown online database online ITIS-North America Taxonomic details retrieved November 7, 2022, from the Integrated Taxonomic Information System online database https://www.itis.gov https://doi.org/10.5066/F7KH0KBK Avian species were identified by skilled observers in the field based on plumage, behavior, and vocalizations Taxonomy is complete for all samples. No vouchers were collected. Kingdom Animalia Subkingdom Bilateria Infrakingdom Deuterostomia Phylum Chordata Subphylum Vertebrata Infraphylum Gnathostomata Superclass Tetrapoda Class Aves Order Anseriformes Family Anatidae Genus Branta Species Branta bernicla TSN: 175011 Species Branta hutchinsii TSN: 174068 Genus Anser Species Anser albifrons TSN: 175020 No access constraints. No use constraints. We request that the suggested citation of this USGS data release be included in any publications that reference or utilize these data. U.S. Geological Survey, Alaska Science Center Mailing and Physical

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Anchorage Alaska 99508 USA 907-786-7000 gs-ak_asc_datamanagers@usgs.gov Ward, D.H. Taylor, E.J. Wotawa, M.A. Stehn, R.A. Derksen, D.V. Lensink, C.J. 1986 report Anchorage, Alaska U.S. Fish and Wildlife Service, Alaska Fish and Wildlife Research Center Ward, D.H., Taylor, E.J., Wotawa, M.A., Stehn, R.A., Derksen, D.V., Lensink, C.J., 1986. Behavior of Pacific black brant and other geese in response to aircraft disturbances and other disturbances at Izembek Lagoon, Alaska: 1986 annual report. U.S. Fish and Wildlife Service, Alaska Fish and Wildlife Research Center, Anchorage, Alaska. https://catalog.northslopescience.org/dataset/170 Ward, D.H. Taylor, E.J. Wotawa, M.A. Stehn, R.A. Derksen, D.V. Lensink, C.J. 1987 report Anchorage, Alaska U.S. Fish and Wildlife Service, Alaska Fish and Wildlife Research Center Ward, D.H., Taylor, E.J., Wotawa, M.A., Stehn, R.A., Derksen, D.V., Lensink, C.J., 1987. Behavior of Pacific black brant and other geese in response to aircraft disturbances and other disturbances at Izembek Lagoon, Alaska: 1987 annual report. U.S. Fish and Wildlife Service, Alaska Fish and Wildlife Research Center, Anchorage, Alaska. Unpublished report archived by the U.S. Fish and Wildlife Service Catalog (ServCat) https://ecos.fws.gov/ServCat [reference code: 106093]. https://ecos.fws.gov/ServCat/DownloadFile/157539 Ward, D.H. Stehn, R.A. Wotawa, M.A. North, M.R. Books-Blenden, B. Lensink, C.J. Derksen, D.V. 1988 report Anchorage, Alaska U.S. Fish and Wildlife Service, Alaska Fish and Wildlife Research Center Ward, D.H., Stehn, R.A., Wotawa, M.A., North, M.R., Books-Blenden, B., Lensink, C.J., Derksen, D.V., 1988. Response of Pacific black brant and other geese to aircraft overflights at Izembek Lagoon, Alaska: 1988 annual report. U.S. Fish and Wildlife Service, Alaska Fish and Wildlife Research Center, Anchorage, Alaska. Unpublished report archived by the U.S. Fish and Wildlife Service Catalog (ServCat) https://ecos.fws.gov/ServCat [reference code: 106095]. https://ecos.fws.gov/ServCat/DownloadFile/157542 Ward, D.H. Stehn, R.A. 1989 report Intra-agency agreement 14-12-0001-30332 MMS 90-0046 Anchorage, Alaska U.S. Fish and Wildlife Service, Alaska Fish and Wildlife Research Center Ward, D.H., Stehn, R.A., 1989. Response of brant and other geese to aircraft disturbance at Izembek Lagoon, Alaska: final report. U.S. Fish and Wildlife Service, Alaska Fish and Wildlife Research Center, Anchorage, Alaska. Unpublished report archived by the U.S. Fish and Wildlife Service Catalog (ServCat) https://ecos.fws.gov/ServCat [reference code: 107956]. https://ecos.fws.gov/ServCat/DownloadFile/107956 Ward, D.H. Stehn, R.A. Derksen, D.V. 1994 publication Wildlife Society Bulletin 22(2):220-228 Wildlife Society Bulletin Wiley Ward, D.H., Stehn, R.A., Derksen, D.V., 1994. Response of staging brant to disturbance at the Izembek Lagoon, Alaska. Wildlife Society Bulletin 22(2):220-228. https://www.jstor.org/stable/3783249 https://www.jstor.org/stable/3783249 Erickson, W.P. Nick, T.G. Ward, D.H. 1998 publication ASA-SIAM Series on Statistics and Applied Probability Book 3 Statistical Case Studies: A Collaboration Between Academe and Industry: Chapter 13 Book SIAM Erickson, W.P., Nick, T.G., Ward, D.H., 1998. Investigating flight response of Pacific brant to helicopters at Izembek Lagoon, Alaska by using logistic regression. In Peck, R., Haugh, L.D., Goodman, A. (Eds.), Statistical Case Studies: A Collaboration Between Academe and Industry (book 3). Ward, D.H. Stehn, R.A. Erickson, W.P. Derksen, D.V. 1999 publication The Journal of Wildlife Management 63(1): 373-381 Journal of Wildlife Management Wiley Ward, D.H., Stehn, R.A., Erickson, W.P., Derksen, D.V., 1999. Response of fall-staging brant and Canada geese to aircraft overflights in southwestern Alaska. Journal of Wildlife Management 63(1): 373-381. https://doi.org/10.2307/3802522 https://doi.org/10.2307/3802522 Patil, V.P. Amundson, C.L. Ward, D.H. Fitzmorris, P.J. 2020 data release online USGS Alaska Science Center Patil, V.P., Amundson, C.L., Ward, D.H. Fitzmorris, P.J., 2020, Data and model-based estimates from Black brant (Branta bernicla nigricans) fall age ratio surveys at Izembek Lagoon, Alaska (ver 3.0, December 2021): U.S. Geological Survey data release, https://doi.org/10.5066/P9QIJIU2 https://doi.org/10.5066/P9QIJIU2 Quality Assurance and Quality Control (QAQC) protocols for these data included: 1) electronically transcribed field notes and data sheets associated with goose disturbance observations were checked against the hardcopy data, and 2) all records were checked for missing values, duplicates, outliers, and inconsistencies. Attribute values fall within expected ranges. Blank cells indicate data that were not recorded or not provided. The dataset is complete, no data were omitted. Positions were obtained by comparing hard copy maps of Izembek Lagoon to current satellite imagery. Latitude and longitude were selected as the centroid of the study site. DIETS: Diet of brant was determined from gut contents of birds collected at Izembek lagoon from early September to late October, 1985-1987. Foods of Cackling Geese were determined only from birds shot by hunters between 1985-1988. The upper digestive tracts (esophagus, proventriculus, and gizzard) was removed from each bird and frozen for later processing. Unknown DIET ANALYSIS: Food items from the esophagus and proventriculus were combined and sorted by plant species and by leaves, shoots (sheaths) and rhizomes. Whole eelgrass plants containing unbroken outer leaves attached to sheaths were measured for leaf length and leaf width. Samples were dried at 25 degrees Celsius to constant weight and each type of food item was weighed to the nearest 0.001 g. Unknown DIGITIZATION: Hard copies of the documents including field data sheets, figures, tables, and maps have been stored at the USGS Alaska Science Center, Anchorage, Alaska. During the spring-fall 2022, the documents were digitally scanned, organized and inventoried. The data were pertaining to goose distribution, experimental overflights, incidental disturbances, and undisturbed behavior were transcribed into a digital .CSV format. 2022 LITERATURE CITED: Ward, D.H., Stehn, R.A., 1989. Response of brant and other geese to aircraft disturbance at Izembek Lagoon, Alaska: final report. U.S. Fish and Wildlife Service, Alaska Fish and Wildlife Research Center, Anchorage, Alaska. Unknown Study site names are local geographic place names of observation areas and do not describe precise geographic points. Point World Geodetic System of 1984 World Geodetic System of 1984 6378137 298.257223563 gooseDiet_izembek_ward_1985-1988.csv Data table corresponding to the diets of Brant Geese, Cackling Geese, and Greater White-fronted Geese at Izembek Lagoon. Presented in a Comma Separated Value (CSV) formatted table. Author defined Num Record number in consecutive order. Author defined 1 102 Count StudyArea Name of location where geese were collected for diet sampling. Blank cells indicate that the collection location was not recorded. Author defined AC Applegate Cove (approximately 55.21 N, 162.85 W) Author defined BI Banding Island (approximately 55.28 N, 162.84 W) Author defined DC Dirk's Cove (approximately 55.25 N, 162.90 W) Author defined IC Island Cove (approximately 55.27 N, 162.88 W) Author defined OM Outer Marker (approximately 55.31 N, 162.76 W) Author defined QP Quarter Point (approximately 55.27 N, 162.83 W) Author defined NB Norma Bay (approximately 55.18 N, 163.03 W) Author defined RC Rambo Cove (approximately 55.25 N, 162.90 W) Author defined TI Tern Island(approximately 55.28 N, 162.84 W) Author defined Year Year the goose was collected for diet analyses. Author defined 1985 1988 Year (YYYY) Date Day the goose was collected for diet analyses. Blank cells indicate that the date of collection was not recorded. Author defined 1985-09-29 1988-10-24 Date (YYYY-MM-DD) Collector Observer initials of goose distribution observations. Blank cells indicate that the collector was not recorded. Author defined AL Andy Loranger Author defined BE Bill Eldridge Author defined BS Bob Stehn Author defined DW David Ward Author defined CL Calvin Lensink Author defined LC Larry Calvert Author defined MW Mark Wotawa Author defined MN Mike North Author defined PF Paul Flint Author defined Species The waterfowl species collected. Author defined B Brant Geese Author defined C Cackling Geese Author defined W Greater White-fronted Geese Author defined Age Age code for the collected goose. Blank cells indicate that the goose age was not recorded. Author defined AD Adult Author defined HY Hatch Year Author defined JU Juvenile Author defined Sex Sex of the goose collected. Blank cells indicate that the sex of the goose was not recorded. Author defined F Female Author defined M Male Author defined E_GritWt_Wet Wet weight of the esophagus grit. Blank cells indicate that the wet grit weight was not recorded. Author defined 0 17.06 Grams E_GritWt_Dry Dry weight of the esophagus grit. Blank cells indicate that the dry grit weight was not recorded. Author defined 0 13.93 Grams G_GritWt_Wet Wet weight of the gizzard grit. Blank cells indicate that the wet grit weight was not recorded. Author defined 0 0 Grams G_GritWt_Dry Dry weight of the gizzard grit. Author defined 0 7.83 Grams E_LvsWt_Wet Wet weight of eelgrass leaves in the esophagus. Blank cells indicate that the wet weight was not recorded. Author defined 0 10.57 Grams E_SheathWt_Wet Wet weight of eelgrass sheaths in the esophagus. Blank cells indicate that the wet weight was not recorded. Author defined 0 1.72 Grams E_LvsSheathComb_Wet Combined wet weight of eelgrass in the esophagus. Author defined 0 10.93 Grams E_LvsWt_Dry Dry weight of eelgrass leaves in the esophagus. Author defined 0 3.86 Grams E_SheathWt_Dry Dry weight of eelgrass sheaths in the esophagus. Blank cells indicate that the dry weight was not recorded. Author defined 0 0.7 Grams t Trace; not measurable at 2 decimal points. Author defined E_RhizWt_Dry Dry weight of eelgrass rhizomes in the esophagus. Author defined 0 1.88 Grams E_LvsSheathComb_Dry Combined dry weight of eelgrass in the esophagus. Blank cells indicate that the dry weight was not recorded. Author defined 0 4.17 Grams G_LvsWt_Wet Wet weight of eelgrass leaves in the gizzard. Blank cells indicate that the wet weight was not recorded. Author defined 0 8.45 Grams G_SheathWt_Wet Wet weight of eelgrass sheath in the gizzard. Blank cells indicate that the wet weight was not recorded. Author defined 0 0.04 Grams G_RhizWt_Wet Wet weight of eelgrass rhizomes in the gizzard. Blank cells indicate that the wet weight was not recorded. Author defined 0 0 Grams G_Comb_Wet Combined wet weight of eelgrass in the gizzard. Blank cells indicate that the combined wet weight was not recorded. Author defined 0 18.53 Grams G_Lvs_Dry Dry weight of eelgrass leaves in the gizzard. Blank cells indicate that the dry weight was not recorded. Author defined 0 6.35 Grams G_Sheath_Dry Dry weight of eelgrass sheaths in the gizzard. Blank cells indicate that the dry weight was not recorded. Author defined 0 0.02 Grams t Trace; not measurable at 2 decimal points. Author defined G_Rhiz_Dry Dry weight of eelgrass rhizomes in the gizzard. Blank cells indicate that the dry weight was not recorded. Author defined 0 2.3 Grams G_Comb_Dry Combined dry weight of eelgrass in the gizzard. Blank cells indicate that the dry weight was not recorded. Author defined 0 6.48 Grams Comments Comments on diet content besides eelgrass. Blank cells indicate that no comments were recorded. Author defined Comments on diet content. U.S. Geological Survey USGS ScienceBase Team Mailing and Physical

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Denver Colorado 80225 USA 1-888-275-8747 sciencebase@usgs.gov The U.S. Geological Survey, Alaska Science Center is the authoritative source of these data, distributed by ScienceBase (a USGS Trusted Digital Repository). Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data for other purposes or on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. CSV; PDF Tabular data in CSV format; Scanned raw data in PDF format; FGDC metadata in XML and HTML formats. https://doi.org/10.5066/P9B98AK4 None 20241126 U.S. Geological Survey, Alaska Science Center Mailing and Physical

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