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Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for Californias wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (https://www.wildlife.ca.gov/Data/CWHR). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide.

This dataset is a large collection of temperature casts recorded by fast-response archival time-depth recorder tags on northern elephant seals during their natural migrations. Only ascents (upcasts) were retained to ensure a similar format to traditional ship-based casts. Each file represents data from a single instrument on one adult female elephant seal. Temperature and depth data were obtained from data logging tags manufactured by Wildlife Computers (MK9 or MK10). Temperature and depth values are uncorrected, raw instrument readings. The position of each cast was estimated using a state-space model smoothing algorithm applied to the ARGOS satellite track of the seal. Position data were obtained from a combination of GPS loggers and ARGOS PTT transmitters manufactured by Wildlife computers (SPOT4, SPOT5, or MK10) or the Sea Mammal Research Unit (SMRU SRDL)). Position data were irregular in time and contained substantial spatial error. So, we estimated a position for each station by smoothing the data using the CRAWL package in R-Cran and then applied a linear interpolation for each station.

This dataset is a large collection of temperature casts recorded by fast-response archival time-depth recorder tags on northern elephant seals during their natural migrations. Only ascents (upcasts) were retained to ensure a similar format to traditional ship-based casts. Each file represents data from a single instrument on one adult female elephant seal. Temperature and depth data were obtained from data logging tags manufactured by Wildlife Computers (MK9 or MK10). Temperature and depth values are uncorrected, raw instrument readings. The position of each cast was estimated using a state-space model smoothing algorithm applied to the ARGOS satellite track of the seal. Position data were obtained from a combination of GPS loggers and ARGOS PTT transmitters manufactured by Wildlife computers (SPOT4, SPOT5, or MK10) or the Sea Mammal Research Unit (SMRU SRDL)). Position data were irregular in time and contained substantial spatial error. So, we estimated a position for each station by smoothing the data using the CRAWL package in R-Cran and then applied a linear interpolation for each station.

Southern Elephant Seal as Oceanographic Samplers (SEaOS) -South Georgia

The National Marine Fisheries Service (NMFS) has conducted shore-based counts of the Eastern North Pacific stock of gray whales (Eschrichtius robustus) 26 years from 1967 to 2008 at Granite Canyon (or nearby at Yankee Point), 13 km south of Carmel, in central California. Convenient access to the Granite Canyon research station (owned by NOAA but operated by the State of California Department of Fish and Game) and the narrowness of the whales' migratory corridor in this area permitted an efficient counting process at this site. All counts were conducted during the 2-month southbound migration (mid-December to late February) rather than the protracted 3-month northbound migration. The routine nature of these counts and the consistency in research protocol lend themselves to inter-annual trend analyses. Research protocol has been based on single observers independently searching for whales and recording data on environmental conditions and the time, location, count, and direction of travel for each sighting. The counting system and observer performance has been tested through paired, independent observational effort; aerial surveys; thermal imagery; radio-tagging of whales; systematic observations through high-powered (25x) binoculars; and teams of observers tracking specific whale pods through the viewing area.

This dataset contains population size, distribution, reproductive success, and disturbance data on Pacific harbor seal (Phoca vitulina richardii) and northern elephant seals (Mirounga angustirostris) at Golden Gate National Recreation Area and Point Reyes National Seashore during the breeding and molting seasons from 1983-2009 (pre I&M-approved protocol) and 2010-2024 (post I&M-approved protocol) . Elephant seal tag resight data begins in 1983, elephant seal population count data begins in 1997, and harbor seal data begins in 2000.

This dataset contains population size, distribution, reproductive success, and disturbance data on Pacific harbor seal (Phoca vitulina richardii) and northern elephant seals (Mirounga angustirostris) at Golden Gate National Recreation Area and Point Reyes National Seashore during the breeding and molting seasons from 1983-2009 (pre I&M-approved protocol) and 2010-2024 (post I&M-approved protocol) . Elephant seal tag resight data begins in 1983, elephant seal population count data begins in 1997, and harbor seal data begins in 2000.

This is a scanned copy of a register of Elephant Seal tagging data from Macquarie Island from October 1987 to March 1991.

The purpose of this project was to obtain data that are pertinent to assessing aspects of the distribution and foraging ecology of pinnipeds inhabiting the California Current. The California Current Ecosystem Program has attached satellite instruments and/or archival time-depth recorders on pinnipeds inhabiting waters off Washington, Oregon, and California to examine their haulout and at-sea spatial distribution, diving behaviors, and movement patterns at varying temporal scales. We aim to integrate telemetry data with aspects of their physiology and diet to assess sex/age-related differences by conspecifics or intra-specific differences among seals, sea lions, or fur seals in the California Current. Locations are calculated and provided by the Argos satellite system (http://www.argos-system.org/). Additional software are required to decode these data. Data are, generally, in the same format as originally delivered from Argos/CLS America and no quality assurance or quality control measures have been implemented.