Western Ecological Research Center

Data and Tools

Below, you can find our stand alone data releases. For contemporary articles and their associated data, please visit our publications tab. We include tools that were developed to streamline analysis using different mediums. For further information, please contact authors.

Climate Distance Mapper

Climate Distance Mapper

Climate Distance Mapper is a spatial decision-support tool designed to help land managers match seed sources with restoration sites. Plant populations are commonly adapted to local climate gradients and frequently exhibit a home-site advantage.

web application

Annual California sea otter stranding data

Annual California sea otter stranding data

The California Sea Otter Stranding Network is part of the USGS effort to monitor southern sea otters (Enhydra lutris nereis) and provide data to the U.S. Fish and Wildlife Service. 

Filter Total Items: 263
Date published: September 1, 2020

Avian eggshell thickness for 12 species in the western U.S. from 2014 to 2018

Eggshell thickness was measured at the egg equator and poles (sharp pole and blunt pole) for 12 avian species. Eggshell thickness was related to egg morphometrics (egg length and width), embryonic development, egg status, and mercury contamination. Individual eggshells each have up to 3 thickness measurements, linked by the eggshell identification. Each measurement has the corresp

Date published: August 31, 2020

Coastal Cactus Wren Habitat Suitability Model for Southern California (2015)

This habitat model was developed to delineate suitable habitat for coastal cactus wren (Campylorhynchus brunneicapillus) in southern California. A primary purpose of the model is to identify potential restoration sites that may not currently support cactus patches required by wrens, but which are otherwise highly suitable. These are areas that could be planted with cactus to increase wren p...

Date published: June 17, 2020

Code and data files to construct an Integral Projection Model for Giant Gartersnakes (Thamnophis gigas) in the Sacramento Valley, California, 1995-2017

This dataset includes data on the growth, fecundity, and survival of Giant Gartersnakes (Thamnophis gigas) in the Sacramento Valley of California from 1995-2017. In addition, the dataset includes R code to replicate the Integral Projection Model construction and analysis presented in the paper Demographic drivers of population growth in a threatened snake by Rose et al. published in Jou

Date published: June 17, 2020

Data files to construct an Integral Projection Model for Giant Gartersnakes (Thamnophis gigas) in the Sacramento Valley, California, 1995-2017

These data support the following publication: Rose, J.P., Ersan, J.S., Wylie, G.D., Casazza, M.L. and Halstead, B.J., 2019. Demographic factors affecting population growth in giant gartersnakes. The Journal of Wildlife Management, 83(7), pp.1540-1551.

Date published: June 10, 2020

Comparisons of Gambel's quail survey methods conducted in 2016 within the Mohave Desert of California with results and summaries

Data includes results collected in the Mohave Desert during 2016 using three survey methods (acoustic recording units, camera traps, and call-count surveys) to detect gamebirds, primarily Gambel's quail (Callipepla gambelii) but also including records of mourning dove (Zenaida macroura), Eurasian collared-dove (Streptopelia decaocto), and chukar (Alectoris chukar).

Date published: June 5, 2020

Feeding observations of intertidal black abalone at monitored sites around San Nicolas Island, California and local distribution of Macrocystis pyrifera based on surface canopy maps

The data set includes feeding observations of black abalone (Haliotis cracherodii) at long-term intertidal monitoring sites around San Nicolas Island, California from 1982 - 2019. This includes site locations, sites, date of observation, observed food items, and abalone shell length when available. Seasonal (spring and fall) GIS maps of giant kelp (Macrocystis pyrifera) cano

Date published: June 5, 2020

Seasonal and inter-annual distribution and abundance of floating kelp canopies surrounding San Nicolas Island, Calif. 1981-1992

Map provides spatial data on the location and extent of floating canopies of the giant kelp, Macrocystis pyrifera, in the area surrounding San Nicolas Island, Calif.

Date published: June 5, 2020

San Nicolas Island California black abalone feeding observations, 1982-2019

These data provide observations of food items observed held by anterior foot of black abalone (presumably for feeding) at 9 different sites in the rocky intertidal zone around San Nicolas Island, California. Observations were made at low tide while censusing the population on permanently marked transects over a 26 year time period. Also included are some associated abalone size data.

Date published: May 28, 2020

Nest data for white-faced Ibis in Bear River Migratory Bird Refuge, Great Salt Lake, Utah in summer 2012

Nest monitoring data of white-faced ibis. Data were collected at seven day intervals and provide information on success and failure of the nest during that interval. Summary vegetation and habitat data were also collected at the nest.

Date published: May 28, 2020

Vegetation type conversion in chaparral in San Diego County, California, USA between 1953 and 2016

This dataset contains data pertaining to ground surface cover in a 30 meter radius around a random selection of points within San Diego County, California. These data were obtained from aerial imagery for the years 1953 and 2016 and were used to assess changes in cover type over time.

Date published: May 27, 2020

Empirical and provisional seed transfer zones for the Mojave Desert and surrounding regions

Empirical evidence that local adaptation and home-site advantages are frequent across plant taxa has increased recognition that local adaptation plays a fundamental role in shaping plant responses to seed transfer (i.e., when plant materials are introduced to a site during restoration). Use of maladapted plant materials can lead to poor project outcomes if propagules exhibit poor germinatio...

Date published: April 29, 2020

Mercury and selenium concentrations in bird eggs at Great Salt Lake, Utah

These metadata provide data used to examine mercury and selenium concentrations in eggs of birds breeding in wetlands of the Great Salt Lake ecosystem, Utah, particularly at Bear River Migratory Bird Refuge. Eggs were salvaged during 2010 - 2012 and include 33 species of birds. These data support the following publication: Ackerman, JT, MP Herzog, CA Hartman, J Isanhart, G Herr