CNDDB News Blog

  • November 10, 2022

The Biogeographic Data Branch continually works to improve our data and tools for everyone. We announced back in June that BIOS 6 has launched. Though BIOS 6 is similar to BIOS 5, there are some differences that may hang up even our most experienced users. Therefore, we want to bring your attention to several training videos and user guides that are available on our training page that may assist you in using this new tool.

  • Training videos
    • BIOS 6 Basics, BIOS 6 Tools, BIOS Advanced Tools – A series of videos that cover the background, purpose, structure, and tools in BIOS, ranging from the basic functions to the most advanced tools.
    • Accessing CNDDB and Spotted Owl Data using BIOS and RareFind – A video that demonstrates various ways our users can use BIOS and RareFind to dig deeper into the data within the CNDDB and Spotted Owl Observation Database.
  • User guides
    • BIOS 6 Getting Started – A condensed version of basic BIOS 6 functions
    • BIOS 6 Data Viewer User Guide – Full user guide of BIOS 6 functions
    • Using the CNDDB Data in BIOS 6 – A guide to a subset of BIOS 6 tools that a CNDDB user may typically use.
    • CNDDB QuickView Tool User Guide for BIOS 6 – A guide to using the QuickView Tool in BIOS 6
    • Using the Spotted Owl Reports Tool in BIOS 6 – Instructions for generating Spotted Owl reports in BIOS 6

Please note that BIOS 5 will no longer be available starting January 2023 as we fully transition to BIOS 6. Please share with others that may need to know this information. If you have questions about BIOS 6, you can submit them to

Categories: Education and Awareness
  • October 19, 2022

Franklin's bumble bee on a flower with long, pink petals
Bombus franklini
photograph by James P. Strange, USDA-ARS Pollinating Insect Research Unit, Public domain, via Wikimedia Commons

A year ago in October of 2021, we posted about the legal status of bumble bees in California. Four of these bumble bees (B. franklini, B. crotchii, B. occidentalis, B. suckleyi) were petitioned for listing as endangered species under the California Endangered Species Act (CESA) in 2018. The California Fish and Game Commission determined that listing all four species as endangered “may be warranted” in June 2019, and the species advanced to candidacy. The Commission’s determination was challenged in court soon after, and candidacy or related protections were stayed during much of the ensuing litigation. A California court of appeal ultimately upheld the Commission’s determination, and the state Supreme Court declined to review the case. Candidacy was reinstated for all four bumble bee species on September 30, 2022. As candidate species, they receive the same legal protection afforded to endangered or threatened species (Fish & G. Code, §§ 2074.2 & 2085).

Both the Suckley’s and western bumble bees have been petitioned for federal listing and received positive 90-day findings. The species status assessment for western bumble bee is scheduled to be released in fiscal year 2024, and Suckley’s in fiscal year 2025.

The California Natural Diversity Database (CNDDB) tracks an additional two species of bumble bee considered species of greatest conservation need. This table includes the current status of all bumble bees tracked by the CNDDB:

Common Name Scientific Name State
State Rank
Other Status
Franklin's bumble bee B. franklini Candidate Endangered S1 IUCN Critical
Crotch bumble bee B. crotchii Candidate None S1S2 IUCN Endangered
western bumble bee B. occidentalis Candidate None S1 IUCN Vulnerable
Suckley's cuckoo
bumble bee
B. suckleyi Candidate None S1 IUCN Critical
obscure bumble bee B. caliginosus None None S1S2 IUCN Vulnerable
Morrison bumble bee B. morrisoni None None S1S2 IUCN Vulnerable

Categories: Education and Awareness
  • October 10, 2022

The following CNDDB documents have been updated:

Links to the T&E and Special Plants/Animals lists can be found on the CNDDB Plants and Animals web page. More information about state listing can be found on the California Fish and Game Commission CESA web page and the California Department of Fish and Wildlife CESA web page. If you have any questions about these lists, please email us at

Categories: Quarterly Updates