Animals and Plants
People from everywhere know the state of California as a place of natural riches. The diverse habitats found in the Region harbor an abundance of wildlife, fish and rare plant resources.
Habitat enhancement projects and efforts to recover and conserve threatened, endangered and sensitive species enrich the recreational experiences of visitors to the National Forests and Grasslands.

Botanists on the forests serve a key role in day-to-day activities on the forests. They love the land, the plants and special places. We are hoping the website will begin to provide a glimpse of these activities and share a few of the special stories on the forests. As time permits, we would like to add podcasts to tell these stories. We invite you to join us and come and visit the forests and see the plants and special places on the forests.
For further information, please contact us by email at SM.FS.R5inquiries@usda.gov or by phone at 707-562-9113, and indicate your request be directed to the Regional Botanist.
Much of the Pacific Southwestern Region of the U.S. Forest Service is found within the California Floristic Province, unique for its Mediterranean climate of dry, hot summers and wet or snowy winters with high levels of plant endemism. Many plant species of the Californiaâs are found here and nowhere else in the world. From serpentine outcrops to sagebrush steppes to chaparral to squishy mountain fens, California's native plants are spectacular!
Throughout its history, the Forest Service Pacific Southwest Regionâs Botany and Rare Plants Program has relied on botanical skills and expertise to provide the public many benefits from the 18 national forests in California. Botany is a key discipline that contributes broadly to ecosystem conservation, protection, and management by providing a sound scientific approach to the conservation of plant biodiversity.

Scope and Complexity
The forest programs range in scope and complexity. A primary focus is on evaluating forest projects, conducting surveys and effects analyses for projects on the forests for threatened, endangered, and sensitive plant species and their habitats. Forest work differs because of the over 500 rare plant species found on the forests and the various authorities (laws, regulations and policies). This results in various analyses, consultations, and coordination needed for activities on the forests. All forests conduct environmental review analyses for their work. For example, the Northern Province forests include Northwest Forest Plan Survey and Manage analysis work as well. The Sierra Cascades and Sierra forests have special authorities which include Northwest Forest Plan, QLG, SNPLMA, SNF, etc. They are working to meet analysis requirements and other obligations. The Southern California forests, in general, have more plant species listed under the Federal Endangered Species Act (ESA) resulting in a higher consultation workload. Lastly, threats to the lands differ throughout. All forests seem to see some effects relating to special uses such as energy, transportation, and water. Others see more or less use relating to proximity to large populations areas resulting in high recreational use for example. Every national forest in California is different and has a unique flavor.
Leadership
The Pacific Southwest Region forest leadership and botany cadre are awesomeâall with varying degrees of experience with the agency, on-the-ground knowledge, and varying levels of educational expertise.
We have botanists who started in the 1980s and saw the botany program develop and grow in infancy stages the Forest Service. We have botanists who started work in the 1990s and are expert in the flora, rare plants, and can navigate around the forests very easily. We have botanists who started work in the 2000s and saw the botany program grow and take a more active approach to incorporate the growing fields of invasive species science and restoration biology. We have new botanists who bring a fresh perspective and scientific viewpoint right out of college. And last but not least, we have seasonal staff who bring new energy and dedicate their summer months to come and work for the Forest Service.
Facilitating the application of current ecological science to land and resource management on National Forests in California. Learn more about the Ecology Program: Ecology
Pacific Southwest Region Aquatic Conservation Strategy
The Aquatic Conservation Strategy (ACS) for Region 5 of the Forest Service covers the 18 national forests within the state of California. Fundamental goals and essential components of the ACS that are common to all National Forests in Region 5 include:
- Habitat connectivity within and among watersheds to support ecological integrity, biodiversity and resilience of aquatic resources
- Physical integrity of the aquatic system, including shorelines, banks, and bottom configurations, to promote resilient aquatic habitats
- Water quality necessary to support healthy riparian, aquatic, and wetland ecosystems
- In-stream flows sufficient to create and sustain riparian, aquatic, and wetland habitats and to achieve desirable patterns of sediment, nutrient, and wood distribution
- Habitat to support well-distributed populations of native plant, invertebrate, and vertebrate aquatic and riparian-dependent species
- Sediment regime, including the timing, volume, rate, and character of sediment input, storage, and transport, that supports identified beneficial uses
- Timing, variability, and duration of floodplain inundation and water table elevation in meadows and wetlands to provide groundwater recharge, stream flow, and maintenance of riparian areas
- Aquatic species composition and distribution in lentic and lotic habitats that reflect inherent biodiversity and productivity
- Species composition and structural diversity of plant communities in riparian areas to provide riparian functions and processes including shade, wood recruitment, and sediment capture.
In order to achieve these goals, the Region 5 Fisheries Program, in partnership with the Hydrology and Watershed Programs, will implement the ACS by focusing on the following core elements:
- Development and implementation of species recovery plans, conservation assessments and strategies to conserve and recover TES aquatic species in collaboration with state and federal agencies and other organizations.
- Collaboration in the design and management of in-stream flows associated with hydropower, flood control, agricultural and municipal water operations that will maintain or restore aquatic resources (e.g. Federal Energy Regulatory Commission relicensing process).
- Assessment and restoration of aquatic organism passage at road-stream crossings to provide for unobstructed migration and dispersal, and reconnect habitats needed to fulfill the life-history requirements of aquatic species.
- Treatment of sediment delivery sources associated with roads, trails, and abandoned mines to reduce or eliminate sediment delivery where fine sediment is limiting the biological productivity of the water body
- Meadow restoration to re-establish or improve hydrologic processes and natural biotic communities
- Eradication or control of non-native aquatic species where they compromise the biological integrity of a water body and prevention of aquatic invasive species introductions through education, inspection and decontamination
- Silvicultural treatments in young riparian stands to accelerate the development of mature forest conditions and promote shade-producing canopy, vegetative diversity, wood recruitment, and a broader complex of habitats for aquatic and riparian species.
- Developing and sustaining partnerships to restore and enhance aquatic resources.
- California Watchable Wildlife
- Forest Service Fish, Wildlife & Rare Plants program
- Wildflowers Regional Information
- USDA PLANTS Database
- National Threatened, Endangered and Sensitive Species (TES) Program
- Region 5 Regional Forester's 2013 Sensitive Animal Species List
- Regional Forester's Sensitive Plant Species List
Wildlife
The Wildlife Program assists field biologists in attaining the Regionâs wildlife priorities to manage wildlife habitat resources from a healthy ecosystem perspective. The Wildlife Program covers terrestrial animal species not considered 'threatened, endangered or sensitive' species (TES). We have a specific TES program for species with this designation.
The Wildlife Program includes various Get Wild! partnerships to assist in 1) administering wildlife management activities to protect and restore native habitats important for conserving biodiversity; 2) managing habitats in a manner that meets public demand for hunting and wildlife viewing and appreciation; and 3) to assure a well-trained work force and effective organizational structure for applying best science and management in meeting the wildlife-related goals of the Agency.
Wildlife Project Spotlights

The Forest Service completed a Conservation Strategy for the California spotted owl (CSO) in the Sierra Nevada in April 2019. The Strategy will help conserve and sustain the CSO population into the future and will be useful not only to the Forest Service, but also to other land management agencies and researchers. The Strategy is meant to be a living document that can be modified as new information becomes available.
Background
The CSO has long been a species of conservation focus in the Pacific Southwest Region, with the species having been designated as a Forest Service Sensitive Species in the late 1970s. In July 1992, the Pacific Southwest Research Station published The California Spotted Owl: A Technical Assessment of Its Current Status which provided the scientific foundation for conserving the species. Since the publication of that report, a great deal of scientific information and management experience have developed that warrant a renewed look at the best means of conserving the California spotted owl. Given the importance of species conservation to the development of revised Forest Plans, the Forest Service developed a new Conservation Strategy for the CSO in 2019 to help guide revision of forest management plans in the Sierra Nevada.
Associated Materials
California Spotted Owl Project-Specific Plan Amendments
Final Conservation Strategy:
Conservation Strategy for the California Spotted Owl in the Sierra Nevada. Version 1.0, April 2019.
Final Conservation Assessment:
Key Contacts
Craig Thompson, Region 5 Wildlife Ecologist
craig.thompson@usda.gov; 707-562-8924

There are a number of research and management efforts underway to ensure the persistence of the Pacific fisher, an Endangered Species Act Candidate species. This group is working to synthesize key information on the speciesâ biology, effects of management actions, and relevant policies to create a conservation strategy for fishers in the southern Sierra Nevada. While strong foundational pieces have been developed for the West Coast fisher Distinct Population Segment, there is a critical need to specifically address the conservation and management needs for the unique and isolated population of Pacific Fisher in the Southern Sierra Nevada.
The goal of this effort is to help conserve and sustain the fisher population in the southern Sierra Nevada by developing a Southern Sierra Nevada Fisher Conservation Strategy for use by agencies, other land managers, researchers, and others. The SSFCSP is designed to meet the needs of agencies with an interest in the Pacific Fisher in the southern Sierra Nevada.
Current Project Status
The Fisher Technical Team (FTT) and its Leader, Wayne Spencer of the Conservation Biology Institute, finalized the Conservation Assessment, a synthesis of the latest science regarding the southern Sierra Nevada fisher and its habitat, in 2015. In 2016 the FTT completed Version 1.0 of the Conservation Strategy. The Strategy authors also developed a document entitled "Implementation of the Southern Sierra Nevada Fisher Conservation Strategy: Note from the Authors (March 2017)" following widespread habitat change and loss. This document describes some aspects of the Conservation Strategy that should not be applied in the near term, as the team continues to work to improve the Strategy. It also describes aspects of the Strategy that remain relevant and makes suggestions for incorporating these aspects into project design and analysis. In 2020 the Conservation Biology Institute released an âInterim Fisher Conservation Strategyâ to better reflect the changing Sierra Nevada landscape and help guide fisher conservation efforts until a full Strategy revision could be completed. In efforts to update and improve the Strategy, the FTT continues to work to address additional research and analytical tasks outlined in the strategy, particularly to develop habitat resiliency metrics and targets and associated conservation measures. In addition, the FTT continues to work to improve habitat suitability models and associated tools.
Documents and Materials
Southern Sierra Nevada Fisher Conservation Strategy Version 1.0
Southern Sierra Nevada Fisher Conservation Assessment
Key Contacts
For questions:
- Craig Thompson, Wildlife Ecologistâ
craig.thompson@usda.gov; (406) 552-7937

Background
The Region 5 Sierra Nevada Carnivore Monitoring Program is a long-term broad-scale population monitoring program to detect potential population declines in fisher (Pekania pennanti) and Pacific marten (Martes caurina) throughout National Forest lands in the Sierra Nevada, with a primary focus on the federally endangered southern Sierra Nevada fisher population.
This program systematically surveys monitoring units using remote sensor cameras, track-plate stations and genetic sampling to detect species and identify individuals. While originally designed to detect changes in occupancy, advances in survey methodology and analytical techniques have expanded the scope of the program to also include monitoring for changes in genetic diversity, population connectivity, species interactions and dietary composition over time. Monitoring occurs over time at fixed locations and therefore changes in species presence can be correlated with changes in environmental conditions over time, such as wildfire, drought, and tree mortality.
Accomplishments and Future Directions
Over the last 19 years of systematic surveys, the Sierra Nevada Carnivore Monitoring Program has completed >50,000 visits to monitoring stations across the Sierra Nevada. These surveys provide scientifically defensible data to inform land management, listing decisions and conservation strategies, as well as provide valuable biological information about fisher, marten and other associated carnivore species such as [shown below, species names listed by row left to right] bobcat (Lynx rufus), mountain lion (Puma concolor), gray fox (Urocyon cinereoargenteus), coyote (Canis latrans), black bear (Ursus americana), ringtail (Bassariscus astutus) as well as a variety of small mammal species.
This long-term monitoring data provides a unique opportunity to investigate the effects of environmental change on mammalian species at a landscape scale which is especially important given the recent widespread drought, tree mortality, and wildfire in the southern Sierra Nevada. It is one of the few sources of wildlife occurrence data spatially extensive enough to match the scale and scope of the tree mortality event and this will be a major focus of future work for the monitoring program.
Selected Publications
Tucker, J.M., King, C., Lekivetz, R., Murdoch, R., Jewell, Z.C. and Alibhai, S.K., 2024. Development of a non-invasive method for species and sex identification of rare forest carnivores using footprint identification technology. Ecological Informatics, 79, p.102431.
Rich, L.N., Medel, I.D., Bangen, S., Wengert, G.M., Toenies, M., Tucker, J.M., Gabriel, M.W. and Davis, C.L., 2023. Integrating existing data to assess the risk of an expanding land use change on mammals. Landscape Ecology, pp.1-16.
Smith, G.B., Tucker, J.M. and Pauli, J.N., 2022. Habitat and drought influence the diet of an unexpected mycophagist: fishers in the Sierra Nevada, California. Journal of Mammalogy, 103(2), pp.328-338.
Pauli, J.N., Manlick, P.J., Tucker, J.M., Smith, G.B., Jensen, P.G. and Fisher, J.T., 2022. Competitive overlap between martens Martes americana and Martes caurina and fishers Pekania pennanti: a rangewide perspective and synthesis. Mammal Review, 52(3), pp.392-409.
Tucker, J.M., Moriarty, K.M., Ellis, M.M. and Golding, J.D., 2021. Effective sampling area is a major driver of power to detect long term trends in multispecies occupancy monitoring. Ecosphere, 12(5), p.e03519.
Davis, C.L., Rich, L.N., Farris, Z.J., Kelly, M.J., Di Bitetti, M.S., Blanco, Y.D., Albanesi, S., Farhadinia, M.S., Gholikhani, N., Hamel, S. Harmsen, B.J., J.M. Tucker et al., 2018. Ecological correlates of the spatial coâoccurrence of sympatric mammalian carnivores worldwide. Ecology letters.
Tucker, Jody M.; Allendorf, Fred W.; Truex, Richard L.; Schwartz, Michael K. 2017. Sex-biased dispersal and spatial heterogeneity affect landscape resistance to gene flow in fisher. Ecosphere. 8(6): e01839.
Rich, L.N., Davis, C.L., Farris, Z.J., Miller, D.A., Tucker, J.M., Hamel, S., Farhadinia, M.S., Steenweg, R., Di Bitetti, M.S., Thapa, K. and Kane, M.D., 2017. Assessing global patterns in mammalian carnivore occupancy and richness by integrating local camera trap surveys. Global Ecology and Biogeography. Global Ecology and Biogeography, 26(8), pp.918-929.
Zielinski, William J.; Tucker, Jody M.; Rennie, Kerry M. 2017. Niche overlap of competing carnivores across climatic gradients and the conservation implications of climate change at geographic range margins. Biological Conservation. 209: 533-545. https://doi.org/10.1016/j.biocon.2017.03.016.
Ellis, Martha M.; Ivan, Jacob S.; Tucker, Jody M.; Schwartz, Michael K. 2015. rSPACE: Spatially based power analysis for conservation and ecology. Methods in Ecology and Evolution. Methods in Ecology and Evolution. doi: 10.1111/2041-210X.12369.
Tucker, Jody M.; Schwartz, Michael K.; Truex, Richard L.; Wisely, Samantha M.; Allendorf, Fred W. 2014. Sampling affects the detection of genetic subdivision and conservation implications for fisher in the Sierra Nevada. Conservation Genetics. 15(1): 123-136.
Zielinski, William J.; Baldwin, James A.; Truex, Richard L.; Tucker, Jody M.; Flebbe, Patricia A. 2013. Estimating trend in occupancy for the Southern Sierra fisher Martes pennanti population. Journal of Fish and Wildlife Management 4(1); e1944-687X. doi: 10.3996/012012-JFWM-002
Tucker, Jody M.; Schwartz, Michael K.; Truex, Richard L.; Pilgrim, Kristine L.; Allendorf, Fred W. 2012. Historical and contemporary DNA indicate fisher decline and isolation occurred prior to the European settlement of California. PLoS ONE. 7(12): e52803.
Spencer, Wayne; Rustigian-Romsos, Heather; Strittholt, James; Scheller, Robert; Zielinski, William; Truex, Richard. 2011. Using occupancy and population models to assess habitat conservation opportunities for an isolated carnivore population. Biological Conservation 144(2): 788-803
For more Forest Service publications, visit Treesearch.
Contact Information
Stephanie Eyes
Regional Carnivore Monitoring Program Leader
Forest Service, Pacific Southwest Region
stephanie.eyes@usda.gov

A Collaborative Inter-Agency Project
This conservation assessment focuses on Yosemite toads in the Sierra Nevada. As such, the assessment encompasses the entire range of Yosemite toads as currently understood which occurs solely within the Sierra Nevada of California.
The mission of this conservation assessment is to provide the information required for developing a conservation strategy that would ensure the self-sustaining, long-term viability and continued evolution of Yosemite toads that represent the historical range of the geographic, genetic, and ecological diversity of the species. Download Yosemite Toad Conservation Assessment (3.6 MB PDF)

A Collaborative Inter-Agency Project
This Conservation Assessment was developed as a tool to guide future Conservation Strategy and recovery planning for mountain yellow-legged frogs in the Sierra Nevada.
Conservation Assessments document all conservationâ or managementâpertinent information that is known or unknown about a species, including its ecology, habitat needs, current and historical population levels, and management risks. Conservation Assessments also provide conservation recommendations based on the best available knowledge.
In turn, these recommendations are incorporated into a focused Conservation Strategy designed to benefit the species.
Download Mountain Yellow-legged Frog Conservation Assessment for the Sierra Nevada Mountains of California, USA (3.6 MB PDF)