"Advancing species identification and discovery through the analysis of short standardized gene regions." The Barcode of Life Data Systems (BOLD) is an online workbench that aids collection, management, analysis, and use of DNA barcodes.
Provides scientific information for each of the 716 species of birds nesting in the USA and Canada, with image and video galleries showing behaviors, habitat, nests, eggs and nestlings, recordings of bird's songs and calls selected from the collection in Cornell's Macaulay Library of Natural Sounds
"Monitoring butterfly populations across Central California for more than 34 years." Descriptions and population data for 159 species and subspecies of butterflies, plus climate data from nearby weather stations, descriptions of study sites and habitats and photos. Created by UC Davis Professor Art Shapiro.
Information about plants that grow wild in California (both native plants and weeds). Interactive distribution maps, photographs, nomenclature, observations and plant descriptions.
Authoritative taxonomic information on plants, animals, fungi and microbes of North America and the world.
The International Union for Conservation of Nature and Natural Resources (IUCN) Red List of Threatened Species™ provides taxonomic, conservation status and distribution information on plants and animals that have been globally evaluated.
The UCSC Library has purchased several field guides in online formats, some for use on computers, and some for use on the library's iPads, that UCSC students, faculty and staff can borrow from the McHenry Library.