TWSWS Abstracts Portal

The East Bay Wildlife Connectivity Project: Designing Three Wildlife Crossings with Fencing to Reconnect Habitats and Improve Safety

Sympatry Increases Predation Risk for an Endangered Ungulate

An Evaluation of Acoustic Signal Degradation and its Impact on Monitoring Wildlife Using the AudioMoth in Southern California Grassland Ecosystems

Bat foraging ecology: Seasonal Variation in the Diets of the Brazilian Free-tailed Bat (tadarida brasiliensis)

A Tale of Two Pikas: Genetic Characterization of Hybrid Zone Dynamics

Insights from Three Seasons of Camera Station Monitoring of Wildlife Undercrossings on a Highway in Rural Eastern Contra Costa County, California

Historical Bottlenecks and Fragmentation Underlie Genomic Erosion and Reduced Immune Diversity in the Endangered San Joaquin Kit Fox

A multi-scale telemetry tracking framework to monitor habitat use, breeding, and migration of cryptic species

Aphids and Beetles and Flies, oh my! What Brazilian Free-tailed Bats eat in Northern California

Climate Drives Genetic Diversity Loss in American Pika (Ochotona princeps) Populations in the Great Basin

Bridging the Gaps: A Novel Modeling Framework for Prioritizing Wildlife Crossings

Coyote occupancy responds to spatial variation in black-tailed deer fawn density in the North Coast region of California

ARU management, usage, and challenges in riparian restoration

Nothing good to eat in the city? When urban-adapted bats don't seem urban-adapted

Whole Genome Resequencing Reveals Genetic Changes in American Pikas Throughout a Century of Climate Change

Effects of Solar Facilities on Movements and Habitat Use by Mule Deer

Space use of altered landscapes by recolonizing California wolves`

Integrative monitoring through bioacoustics: a single data stream to passively inform multiple ecological metrics

Sea or Shore? Bat Activity Throughout the California Coast and Offshore Environment

Analyzing the effect of climate on habitat occupancy and the population stage structure of Ochotona princeps (American pika)

Conservation in the Anthropocene: Understanding Changes in Population Fragmentation to Manage for a Resilient Future

Patterns of Space Use, Diet, and Livestock Depredation in California’s Recovering Gray Wolf Population

Burrow Excavations: An Updated Review of a Common Take Avoidance Measure For Federally Threatened California Tiger Salamander (Ambystoma Californiense)

Night Wings of Southern Alameda County

The distribution and resilience of American pikas under changing climate conditions in the central Oregon Cascades

Restoring migration of Sierra bighorn in the context of adaptive management

Rewilding California Mountain Lions (Puma concolor): 2016-2025

Managing predation by interventions to reduce prey vulnerability

Monitoring Bat Populations through Roost Exit Surveys with Consistent Species-specific Methods and Environmental Conditions

Pikas on Protected Lands: Informing conservation and monitoring across the U.S. National Wildlife Refuge System

Tracking Swainson’s Hawks: Behavioral responses to infrastructure development in California’s Central Valley

Mountain lion translocation as a management strategy for mitigating predation on an endangered species

Advancing Recovery Planning for California’s CESA-Listed Species

Effects of Public Land Cannabis Cultivation on Bat Diversity and Foraging Activity in Northern California

Long-call Playback: A Novel Method for Estimating Density and Occupancy of North American Pika

California (Large) Wildlife-Vehicle Collisions Rates and Costs High but Declining with Declining Wildlife Populations

California’s Wildcat: Bobcat Population Monitoring in California

The California Department of Fish and Wildlife’s Cutting the Green Tape Program: Updates on Regulatory Strategies to Improve the Pace and Scale of Restoration

Landscape Scale Roosting Habits of Male Silver-Haired Bats in Northeastern California

Beyond the weather station: mapping thermal refugia in rocky alpine habitats

Presence-only Prediction (Maxent) as a tool to direct surveys and mitigation of California newt road mortality

Change in bobcat distribution after large mixed severity fire

Creation of a Habitat Suitability Spatial Model for Riparian Brush Rabbit as a Species Recovery Tool

Swarming behavior by the solitary tree-roosting hoary bat

Winter climate explains American pika (Ochotona princeps saxatilis) habitat occupancy in a southern core of the species' range

Estimating Annual Large Mammal Roadkill for California

Using the Wildlife Picture Index to Measure Ecosystem Health

Projecting the Benefits of Tidal Marsh Restoration for Bird Habitat in the Sacramento–San Joaquin Delta of California

Developing an Impactful Community Science Program, Identifying Technical Challenges, and Assessing Engagement Techniques

Patterns of Change in Microclimates in an Atypical Habitat for American Pikas

Modeling and Mitigating Highway Traffic Noise and Light for Wildlife Movement

How the Environment Drives Predator-Prey Encounter Dynamics Across Space and Time

Hydrologic restoration and overall water availability are key to bird conservation in Sierra Nevada meadows

A 25-year history of Tadarida brasiliensis occupying the Franklin Boulevard Bridge in California’s Central Valley

Divergent paths for climate adaptation: Comparing adaptive capacity in North American pikas

Wildlife Connectivity Along Interstate-10’s Banning Pass: Using Field Research to Inform Connectivity Efforts

Collaborative Integrated Population Modeling: Merging Management Perspectives and Modeling to Manage an Endangered Species

Tracking Persistence: Humboldt Marten Monitoring across Northwestern California on Yurok Ancestral Lands

Bats and Wildfire in Northern California: How Bat Species Presence and Relative Abundance Shifted Post-Dixie Fire

Climatic stressors and habitat quality explain individual stress metrics in an isolated population of small mammals

Assessing genetic rescue in Blunt-nosed Leopard Lizards in California’s Panoche Hills

Novel sky-island lineages identified through genomic analyses of the narrow-faced kangaroo rat

From Recovery to Resilience: Ongoing Conservation of the Catalina Island Fox

Regional Comparison of Urban Versus Rural Peregrine Falcon (Falco peregrinus anatum) Nesting Habitat Qualities in the San Francisco Bay Area, California

Selenium Bioaccumulation Affects Nesting Success and Egg Hatching Rate of Yuma Ridgway’s Rails at the Salton Sea

Thermal ecology of the Great Basin Rattlesnake (Crotalus lutosus) in eastern Nevada

Why The Long Face? The Ecological Niche and Distribution of the Imperiled Narrow-Faced Kangaroo Rat (Dipodomys venustus)

Human-Wildlife Interactions of Hawaiian Waterbirds in Managed Wetlands

It Takes Three to Tango: Cooperative Breeding in California Condors

Irrigated agriculture influences selenium levels in Yuma Ridgway’s rails at the Salton Sea

Snakes on a grain? Rice cultivation supports growth and survival of the threatened semi-aquatic giant gartersnake (Thamnophis gigas)

Predator-Prey Spatiotemporal Dynamics in Restored Corridors for the Endangered San Bernardino Kangaroo Rat

Observations of predation of California’s marine mammals by the cookie cutter shark (Isistius brasiliensis)

A Journey of Recovery and Resilience: How Ventana Wildlife Society Brought California Condors Back to the Central Coast

Salton Sea versus Colorado River: comparison of migration and seasonal movements in Yuma Ridgway’s rails

Denizens of the Dark: Notes on the Diet of Nightsnakes (Genus: Hypsiglena) and the Known Unknowns of the California Nightsnake (H. ochrorhyncha nuchalata)

Genetic and morphological variation across the range of Trowbridge’s shrew, Sorex trowbridgii

Minimum Hydroperiod for Metamorphosis in the California Tiger Salamander

Whole-genome data for the golden eagle (Aquila chrysaetos canadensis) elucidate regional genetic structure throughout California and adjacent states

Evaluating drivers of selenium bioaccumulation in Yuma Ridgway's Rail food webs from managed and unmanaged Salton Sea wetlands

Population structure of the San Joaquin Coachwhip

A novel set of techniques to entice San Francisco dusky-footed woodrat and Monterey dusky-footed woodrat to utilize relocated & reconstructed nests.

Patterns of Dispersal and Survivorship in Recently-metamorphosed California Red-legged Frogs (Rana draytonii)

Barred Owl Space Use Reveals Competitive Exclusion and Functional Loss of Northern Spotted Owl Habitat

Cameras and Autonomous Recording Units Detect Diverse Wildlife Presence within Newly Restored Riparian Habitat along the Alamo River Corridor

Three Decades in the Making: Launching the First Head-Start Program for the Endangered San Francisco Garter Snake (Thamnophis sirtalis tetrataenia)

An Investigation of Demographics of the Salt Marsh Harvest Mouse Throughout the Species Range and Related Conservation and Management Implications

Pond Creation Confers Benefits to Pond Associated Species

Wintering Burrowing Owl Status in Orange County, CA

Shifting Avian Habitats at the Salton Sea Create New Opportunities for Conservation

Too Salty to Stay? Salinity as a Driver of Western Pond Turtle Occupancy Patterns

Balancing California Environmental Quality Act (CEQA) Streamlining Efforts and Wildlife Protection

Foundational Quantitative Assessment of Ecological Impacts from Illegal Cannabis Cultivation on Public Lands in the Western United States

Northern Saw-Whet Owl Migration: Results of 7 years of data collection in the Bay Area, California

Monitoring Habitat Connectivity for San Joaquin Kit Fox; Results of a Pilot Study Assessing Cameras and Ai Software

Turtles on the Range: Understanding Northwestern Pond Turtle Movements in California’s Working Lands

A tale of two ponds. How a localized extirpation morphed into a regional recovery action for CRLF in Solano County

Persistent Contaminants: Landscape-Scale Rodenticide Exposure in a Sentinel Owl Species

Effects of personality on hunting behavior and potential for ecosystem services provided by barn owls in an agroecosystem

The Pros and Cons of Assuming Listed Species Presence

Aquatic Movements, Potential Nesting, and Overwintering Habitat of the Northwestern Pond Turtle (Actinemys marmorata) in Suburban Waterways.

Evaluating The Efficacy and Cost of Burrow Excavations for Small Vertebrate Species

Using Fine-Scale Aging in Barred Owls (Strix varia) to Understand Timeline of Rodenticide Exposure in Northwestern California

Navigating Permit Challenges in a Design-Build Approach

A review of turtle shell notching, and a plea for methodological acknowledgement

Wild horse advocates versus ranchers? Not anymore: unsung conservation heroes enter the fray

Investigating pesticide exposure on the giant gartersnake

Avian Population Trends in Pacific Northwest National Parks Suggest Resilience to Recent Climate Change that Is Not Explained by Elevational Range Shifts

Writing Effective Mitigation Measures

Preliminary Findings of Pond Restoration at Goat Rock BHR for California Red-Legged Frog and Northwestern Pond Turtle

Affective Stakeholders: A New Challenge for Participatory Environmental Governance

Southern California Turkey Vultures: The Challenges of Lead Exposure and Migration

Potential Population Effects of Limited Dispersal on Nesting Swainson's Hawks with Expanding Utility-Scale Solar Development in the West Mojave Desert, CA

Evaluating Effectiveness of Conditions of Approval

Testing Acoustic Detection of Species with AI

Long-term movement patterns of a mountain lion in a changing environment

American Kestrels in agroecosystems: Effects of extreme temperature and land-use on resource selection and nestling diet

Quantifying Impacts of Humans on Terrestrial Urban Mammal Activity: a COVID-19 Lockdown Natural Experiment

Developing Baseline Acoustic Monitoring at Canada De Los Osos Ecological Reserve

Molting mechanics: Characterizing surface temperatures during the initial molt of northern elephant seal (Mirounga angustirostris) pups

Quantifying Post-Release Outcomes of Rehabilitated California Condors

Investigating Effects of Environmental Features on Barn Owl Road Mortality Along Interstate 5 (I-5) using a 15 Year Long Dataset

Comparing eDNA Sampling and Camera Trapping as Indicators of Terrestrial Mammal Species Presence in Wildlife Crossing Structures Across California

Early insights on water for wildlife: pronghorn use of water sources in the Carrizo Plain, California

Peregrinations of female prairie falcons after fledging: goodbye California?

Concrete Carnivores: Occupancy and Activity in a Shared Urban Landscape

Monitoring and CRLF Relocation Efforts for the Rancho Cañada Floodplain Restoration Project

Comparison of survey methods for the collection of genetic data via hair snares for Humboldt marten (Martes caurina humboldtensis) on Yurok Tribal lands

Movements of Turkey Vultures Provide Evidence of Nonmigratory Behavior and Natal Philopatry in a Population Breeding in Southwestern California

Ua Ola Loko I Ke Aloha: Community Well-Being and Biocultural Restoration at Waikalua Loko Iʻa, Oʻahu

From the City to the Foothills: The Effect of Urbanization on Haemosporidian Infections in House Finches (Haemorhous mexicanus)

Catch Me if You Can: Interactions Between Predator and Prey at Wildlife Crossing Structures in California

Translocation and Monitoring of the omao (Myadestes obscurus): Advancing Native Bird and Habitat Recovery in Hawaii

State Wildlife Action Plan 2025 (SWAP 2025): What’s New for Species of Greatest Conservation Need (SGCN) Criteria

Avian Influenza Virus Antibodies in a Barred Owl: A Case from Northern California

A Game of Cat and Mouse: The Role of Vegetation Productivity on Prey Prevalence in Feral Cat Stomachs

Documenting Exponential Growth of Invasive Mute Swans (Cygnus olor) in California

Evaluating the Shift to Non-Lead Ammunition: Impacts on Wildlife and Stakeholder Engagement

Investigating the population size and demography of the Northwestern Pond Turtle (Actinemys marmorata) at a high elevation site in Kern County

To Flee, or Not to Flee: Juvenile Dispersal and Adult Exploratory Movement Patterns in San Clemente Island Foxes

SUCCESSFULLY EXCLUDING CLIFF SWALLOW NESTING ON A BRDIGE STRUCTURE

Science and Social Engineering - Managing Invasive Species in City of Santa Cruz Watersheds

The Power of a State Symbol: Translating the Giant Gartersnake Designation into Tangible Conservation Action

Giant Kangaroo Rats and San Joaquin Antelope Squirrels on the Carrizo Plain: an update after 19 years of monitoring

Between the Ashes and the Sage: Movement and Habitat Use of Greater Sage-Grouse (Centrocercus urophasianus) Broods in Burned and Unburned Landscapes

Wildfire Smoke and its Impact on Urban Wildlife

Mojave Desert Tortoise use of California’s abandoned mines

Habitat Use in a Highly Invaded Marsh: Do salt marsh harvest mice prefer invasive plant species over pickleweed?

Factors Influencing “Stillness” in Barred Owls of Northwestern California

Ecological Response to Wild, Prescribed, and Cultural Fire in an Arid Grassland (Carrizo Plain National Monument)

Grasshopper abundance and BNLL activity

Best Practices in Exclusion Fencing for Salt Marsh Harvest Mouse

Foraging Habitat Selection by American Barn Owls in Vineyard Landscapes

Quantifying Antipredator Behavior of Crotalus oreganus on the Central Coast of California

Data-Driven Restoration: Leveraging eDNA, Geospatial Data, and Modeling to Measure, Track, and Accelerate Habitat Recovery

Wolverines in California: A wild past and a potential future

Combining camera trap and fitness app data to assess mammal response to hiking and mountain biking trail use

TESTING ADAPTIVE HABITAT SELECTION IN BREEDING SWAINSON'S HAWKS

Consultant Perspectives on Bumble Bee Habitat Assessment, Survey Design, and Mitigation under the California Endangered Species Act

Characterizing the San Francisco coyote population using noninvasive genetic sampling.

Energetic Costs of Human Disturbance to Southern Sea Otters Along the California Coast

Expanding the Reach of Autonomous Recording Units: Detecting Cryptic Rails in Challenging Environments

Spatiotemporal Dynamics of Greater Sage-Grouse Populations Across their Range

Bumble bee floral preference in mountain meadows of the Sierra Nevada, California, USA

Utilizing eDNA, wildlife cameras, and acoustic recording units to detect wildlife at the Tule Elk State Natural Reserve

Going the distance, in the spotlight: 25 years of Distance Sampling Surveys for San Joaquin Kit Fox on the Carrizo Plain Using Spotlighting

Adapting to the City: How Urbanization Influences House Finch Immune Genes

Status of California Ridgway’s Rail in the San Francisco Bay Region

Targeted Grazing for Invasive Grass Management in the San Joaquin Desert

Introducing AudioDash: A web-based tool for organizing, automatically classifying, and verifying audio recordings of wildlife

Shaped by shapes: Complex configuration of burn severity patches promotes Pacific marten occupancy following a megafire

Avian response to fire in giant sequoia groves

Alameda Song Sparrow Habitat Use of Salt Pond Restoration Sites in South San Francisco Bay

Bridging Infrastructure and Ecology: How Public Works Agencies Are Advancing the Next Generation of Wildlife Conservation

AI-Supported, Thermal Wildlife Detection and Classification at Wildlife Crossings

Beyond boundaries – Humboldt marten distribution and abundance in the coastal forests of California and Oregon

Urbanization promotes individual specialization in a generalist carnivore

Avian community composition affects nest parasitism rates of Southwestern Willow Flycatchers in the Kern River Valley, CA

Capstone Sound Check

Passive acoustic data as phenological distributions: uncovering signals of temporal ecology

Gray Fox Occupancy of Burned Vegetation following a California Megafire

Conservation Meow! Pawsitive Partnerships for Cats and Wildlife

Black Skimmer (Rynchops Niger) Nesting Success Trends Along the Eastern Shore of the San Francisco Bay, California

Capstone Sound Check