vector digital data https://www.wildlife.ca.gov/Data/BIOS ftp://ftp.wildlife.ca.gov/BDB/GIS/BIOS/Public_Datasets/100_199/ds127.zip Aerial at-sea and coastal surveys were conducted to examine the distribution and abundance of seabirds off Southern California, from Cambria, California to the California-Mexico border and including the area 90 to 180 km from the shoreline. From May 1999 to January 2002, nine complete aerial surveys were flown throughout the survey area, with monthly replicated (n=2 per month/year) surveys flown throughout the central portion (e.g., area surrounding the northern Channel Islands). In total, flights occurred on 102 days, covering over 54,640 km of transects throughout the entire Southern California Bight (Bight) during January, May, and September. A total of 135,545 birds were counted and identified, comprising 54 species in 12 families. Recent changes in oceanography and human demography prompted a need for updated information regarding at-sea populations of seabirds in the Bight. Techniques were used that would allow comparison with previous seabird surveys conducted by Briggs et al. (1987). Complete -122.087508 -116.965358 35.670759 32.378163 None seabird, aerial survey, biota, environment ISO 19115 Topic Categories biota environment None California None This information may be cited and analyzed for summary reports but not used for scientific publication without permission from the authors. Please cite US Geological Survey and Humboldt State University if these data are used or included in developed products.Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data. Extensive fieldwork in 1999-2002 was conducted jointly by the U.S. Geological Survey (Western Ecological Research Center, Vallejo and Dixon, California; Principal Investigators J.Y. Takekawa and D.L. Orthmeyer) and Humboldt State University (Department of Wildlife, Arcata, California; Principal Investigators R.T. Golightly and H.R. Carter; Project Leader: G.J. McChesney). Major contributions to fieldwork were made by J. Mason and W. McIver. Significant contributions to data analyses were made by W. Perry, J. Yee, J. Adams, and J. Ackerman. Major project cooperators included Minerals Management Service (M. Pierson, M. McCrary) and the U.S. Navy (S. Schwartz, T. Keeney), and California Department of Fish and Game (P. Kelly, E. Burkett). Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270 Vector GT-polygon composed of chains 490 NAD 1983 California Teale Albers 34.0 40.5 -120.0 0.0 0.0 -4000000.0 coordinate pair 0.000000003754707655900803 0.000000003754707655900803 meter D North American 1983 GRS 1980 6378137.0 298.257222101 ds127 FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. TGRIDALB_I unique identifier for 5-minute blocks USGS OID_ ds127_EX1 MONTH Month of survey - 1=January, 5=May, or 9=September USGS ALL_BIRDS All birds combined - summary of monthly density averages across years in 5-minute blocks. USGS ALBATROSS All Albatross combined - summary of monthly density averages across years in 5-minute blocks. Includes BFAL and LAAL. USGS ALCIDS All Aclidae combined - summary of monthly density averages across years in 5-minute blocks. Includes CAAU, COMU, PIGU, RHAU, UNAL, UNMU, UNSA, and XAMU. USGS ASSP Ashy Storm-Petrel (Oceanodroma homochroa) - summary of monthly density averages across years in 5-minute blocks. USGS BFAL Black-footed Albatross (Phoebastria nigripes) - summary of monthly density averages across years in 5-minute blocks. USGS BLKI Black-legged Kittiwake (Rissa tridactyla) - summary of monthly density averages across years in 5-minute blocks. USGS BLSP Black Storm-Petrel (Oceanodroma melania) - summary of monthly density averages across years in 5-minute blocks. USGS BOGU Bonaparte's Gull (Larus Philadelphia) - summary of monthly density averages across years in 5-minute blocks. USGS BRAN Brant (Branta bernicla) - summary of monthly density averages across years in 5-minute blocks. USGS BRCO Brandt's Cormorant (Phalacrocorax penicillatus) - summary of monthly density averages across years in 5-minute blocks. USGS BRPE Brown Pelican (Pelecanus occidentalis) - summary of monthly density averages across years in 5-minute blocks. USGS BUSH Buller's Shearwater (Puffinus bulleri) - summary of monthly density averages across years in 5-minute blocks. USGS BVSH Black-vented Shearwater (Puffinus opisthomelas)- summary of monthly density averages across years in 5-minute blocks. USGS CAAU Cassin's Auklet (Ptychoramphus aleuticus) - summary of monthly density averages across years in 5-minute blocks. USGS CAGU California Gull (Larus californicus) - summary of monthly density averages across years in 5-minute blocks. USGS CATE Caspian Tern (Sterna caspia) - summary of monthly density averages across years in 5-minute blocks. USGS CMTE Common Tern (Sterna hirundo) - summary of monthly density averages across years in 5-minute blocks. USGS COLO Common Loon (Gavia immer) - summary of monthly density averages across years in 5-minute blocks. USGS COMU Common Murre (Uria aalge) - summary of monthly density averages across years in 5-minute blocks. USGS CORMORANTS All Cormorants (Phalacrocorax spp. combined) - summary of monthly density averages across years in 5-minute blocks. Includes BRCO, DCCO, PECO, and UNCO. USGS DCCO Double-crested Cormorant (Phalacrocorax auritus) - summary of monthly density averages across years in 5-minute blocks. USGS ELTE Elegant Tern (Sterna elegans) - summary of monthly density averages across years in 5-minute blocks. USGS ERTE Elegant/Royal Tern (Sterna elegans or S. maxima) - summary of monthly density averages across years in 5-minute blocks. USGS FOTE Forster's Tern (Sterna forsteri) - summary of monthly density averages across years in 5-minute blocks. USGS GLGU Glaucous Gull (Larus hyperboreus) - summary of monthly density averages across years in 5-minute blocks. USGS GREBES All Grebes (Podicipedidae combined) - summary of monthly density averages across years in 5-minute blocks. Includes HOGR, WEGR, USGR, and PBGR. USGS GULLS All gulls (Larinae combined) - summary of monthly density averages across years in 5-minute blocks. Includes BOGU, CAGU, GLGU, GWGU, HEEG, HEGU, MEGU, RBGU, SAGU, WEGU, UNGU, UNLG, UNLA, UNMG, UNSG, USGU, and BLKI. USGS GWGU Glaucous-winged Gull (Larus glaucescens) - summary of monthly density averages across years in 5-minute blocks. USGS HEEG Heermann's Gull (Larus heermanni) - summary of monthly density averages across years in 5-minute blocks. USGS HEGU Herring Gull (Larus argentatus) - summary of monthly density averages across years in 5-minute blocks. USGS HOGR Horned Grebe (Podiceps auritus) - summary of monthly density averages across years in 5-minute blocks. USGS JAEGARSKUA Jaegar and Skua - (Stercorarius spp. combined) summary of monthly density averages across years in 5-minute blocks. Includes LTJA, PAJA, POJA, and UNJA. USGS LAAL Laysan Albatross (Phoebastria immutabilis) - summary of monthly density averages across years in 5-minute blocks. USGS LARIDS All laridae: Gulls, Terns, and Jaegars (Stercorariinae, Larinae, and Sterninae combined) - summary of monthly density averages across years in 5-minute blocks. Includes BOGU, CAGU, GLGU, GWGU, HEEG, HEGU, MEGU, RBGU, SAGU, WEGU, UNGU, UNLG, UNLA, UNMG, UNSG, BLKI, CATE, CMTE, ELTE, ERTE, FOTE, LETE, ROTE, UNLT, UNMT, UNST, UNTE, LTJA, PAJA, POJA, UNJA, and SPSK. USGS LETE Least Tern (Sterna antillarum) - summary of monthly density averages across years in 5-minute blocks. USGS LHSP Leach's Storm-Petrel (Oceanodroma leucorhoa) - summary of monthly density averages across years in 5-minute blocks. USGS LOONS All loons (Gavia spp. combined) - summary of monthly density averages across years in 5-minute blocks. Includes COLO, PALO, RTLO, and UNLO. USGS LTJA Long-tailed Jaeger (Stercorarius longicaudus) - summary of monthly density averages across years in 5-minute blocks. USGS MEGU Mew Gull (Larus canus) - summary of monthly density averages across years in 5-minute blocks. USGS NOFU Northern Fulmar (Fulmarus glacialis) - summary of monthly density averages across years in 5-minute blocks. USGS PAJA Parasitic Jaeger (Stercorarius parasiticus) - summary of monthly density averages across years in 5-minute blocks. USGS PALO Pacific Loon (Gavia pacifica) - summary of monthly density averages across years in 5-minute blocks. USGS PBGR Pied-billed Grebe (Podilymbus podiceps) - summary of monthly density averages across years in 5-minute blocks. USGS PECO Pelagic Cormorant (Phalacrocorax pelagicus) - summary of monthly density averages across years in 5-minute blocks. USGS PFSH Pink-footed Shearwater (Puffinus creatopus) - summary of monthly density averages across years in 5-minute blocks. USGS PHALAROPES All Phalaropes (Phalaropus spp. combined) - summary of monthly density averages across years in 5-minute blocks. Includes REPH, RNPH, and UNPH. USGS PIGU Pigeon Guillemot (Cepphus columba) - summary of monthly density averages across years in 5-minute blocks. USGS POJA Pomarine Jaeger (Stercorarius pomarinus) - summary of monthly density averages across years in 5-minute blocks. USGS PROCELARID All Procellariidae combined- summary of monthly density averages across years in 5-minute blocks. Includes BUSH, BVSH, SOSH, PFSH, UNSH, NOFU, and UNPR. USGS RBGU Ring-billed Gull (Larus delawarensis) - summary of monthly density averages across years in 5-minute blocks. USGS RBME Red-breasted Merganser (Mergus serrator) - summary of monthly density averages across years in 5-minute blocks. USGS RBTR Red-billed Tropicbird (Phaethon aethereus) - summary of monthly density averages across years in 5-minute blocks. USGS REPH Red Phalarope (Phalaropus fulicarius)- summary of monthly density averages across years in 5-minute blocks. USGS RHAU Rhinoceros Auklet (Cerorhinca monocerata) - summary of monthly density averages across years in 5-minute blocks. USGS RNPH Red-necked Phalarope (Phalaropus lobatus) - summary of monthly density averages across years in 5-minute blocks. USGS ROTE Royal Tern (Sterna maxima) - summary of monthly density averages across years in 5-minute blocks. USGS RTLO Red-throated Loon (Gavia stellata) - summary of monthly density averages across years in 5-minute blocks. USGS SAGU Sabine's Gull - (Xema sabini) - summary of monthly density averages across years in 5-minute blocks. USGS SEADUCKS All seaducks combined - summary of monthly density averages across years in 5-minute blocks. Includes BRAN, RBME, SUSC, WWSC, and USCR. USGS SOSH Sooty Shearwater (Puffinus griseus) - summary of monthly density averages across years in 5-minute blocks. USGS SPSK South Polar Skua (Stercorarius maccormicki) - summary of monthly density averages across years in 5-minute blocks. USGS STORMPETRL All storm petrels combined - summary of monthly density averages across years in 5-minute blocks. Includes ASSP, BLSP, LHSP, and UNSP. USGS SUSC Surf Scoter (Melanitta perspicillata) - summary of monthly density averages across years in 5-minute blocks. USGS TERNS All terns (Sterninae combined) - summary of monthly density averages across years in 5-minute blocks. Includes CATE, CMTE, ELTE, ERTE, FOTE, LETE, ROTE, UNLT, UNMT, UNST, and UNTE. USGS UDIV Unidentified diver - summary of monthly density averages across years in 5-minute blocks. USGS UNAL Unidentified albatross - summary of monthly density averages across years in 5-minute blocks. USGS UNCO Unidentified cormorant - summary of monthly density averages across years in 5-minute blocks. USGS UNDD Unidentified diving duck - summary of monthly density averages across years in 5-minute blocks. USGS UNEG Unidentified egret - summary of monthly density averages across years in 5-minute blocks. USGS UNGU Unidentified gull - summary of monthly density averages across years in 5-minute blocks. USGS UNJA Unidentified Jaeger spp. - summary of monthly density averages across years in 5-minute blocks. USGS UNLA Unidentified Lariidae (includes gulls and terns) - summary of monthly density averages across years in 5-minute blocks. USGS UNLG Unidentified large gull (e.g. Western Gull, Herring Gull) - summary of monthly density averages across years in 5-minute blocks. USGS UNLO Unidentified loon (Gavia spp.) - summary of monthly density averages across years in 5-minute blocks. USGS UNLT Unidentified large tern (e.g., Caspian Tern, Elegant Tern) - summary of monthly density averages across years in 5-minute blocks. USGS UNMG Unidentified medium gull (e.g., California Gull, Ring-billed Gull) - summary of monthly density averages across years in 5-minute blocks. USGS UNMT Unidentified medium tern (i.e., Forster's, Royal, Elegant Tern)- summary of monthly density averages across years in 5-minute blocks. USGS UNMU Unidentified murrelet spp. - summary of monthly density averages across years in 5-minute blocks. USGS UNPH Unidentified phalarope (Phalaropus spp.) - summary of monthly density averages across years in 5-minute blocks. USGS UNPR Unidentified Procellariidae - summary of monthly density averages across years in 5-minute blocks. USGS UNSA Unidentified small Alcidae (e.g. murrelet spp., Cassin's Auklet) - summary of monthly density averages across years in 5-minute blocks. USGS UNSB Unidentified seabird - summary of monthly density averages across years in 5-minute blocks. USGS UNSG Unidentified small gull (e.g., Bonapart's Gull, Sabine's Gull, kittiwake) - summary of monthly density averages across years in 5-minute blocks. USGS UNSH Unidentified shearwater spp. - summary of monthly density averages across years in 5-minute blocks. USGS UNSP Unidentified storm-petrel spp. - summary of monthly density averages across years in 5-minute blocks. USGS UNST Unidentified small tern (e.g., Least Tern, Forster's Tern) - summary of monthly density averages across years in 5-minute blocks. USGS UNTE Unidentified tern - summary of monthly density averages across years in 5-minute blocks. USGS USCR Unidentified small cormorant - summary of monthly density averages across years in 5-minute blocks. USGS USDV Unidentified small diver - summary of monthly density averages across years in 5-minute blocks. USGS USGR Unidentified small grebe (Pied-billed Grebe, Eared Grebe, Horned Grebe) - summary of monthly density averages across years in 5-minute blocks. USGS USGU Unidentified small gull - summary of monthly density averages across years in 5-minute blocks. USGS WEGR Western/Clark's Grebe (Aechmophorus occidentalis and A. clarkii) - summary of monthly density averages across years in 5-minute blocks. USGS WEGU Western Gull (Larus occidentalis) - summary of monthly density averages across years in 5-minute blocks. USGS WWSC White-winged Scoter (Melanitta fusca) - summary of monthly density averages across years in 5-minute blocks. USGS XAMU Xantus's Murrelet (Synthliboramphus hypoleucus) - summary of monthly density averages across years in 5-minute blocks. USGS TGRIDALB_I unique identifier for 5-minute blocks USGS See access and use constraints information. Shapefile 0.064 20200818 FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time