Threatened & Endangered Species Surveys
Our small Biological Consulting firm is highly experienced in conducting (threatened and endangered) species surveys for plants and animals throughout California and Nevada. Based on your site’s location and habitat characteristics, our crew can assess which species are likely to occur on a site. We follow the most up-to-date and approved survey methodologies to determine listed species’ presence, distribution, and abundance.
Our Focused Surveys
- Rare Plant Surveys and Inventories
- California Gnatcatcher
- Least Bell’s Vireo
- Southwestern Willow Flycatcher
- Western Yellow-billed Cuckoo
- Burrowing Owl
- Cactus Wren
- Swainson’s Hawk
- California Spotted Owl
- Arroyo Toad
- California Red-legged Frog
- Mountain Yellow-legged Frog
- Southern Rubber Boa
- Southwestern Pond Turtle
- Desert Tortoise
- Coachella Valley Fringe-toed Lizard
- Flat-tailed Horned Lizard
A threatened and endangered species survey is a site visit that determines whether a project area contains endangered or threatened species. Regulatory agencies often require these surveys.
Purpose
- Determine if a site is a habitat for protected species
- Identify the presence, distribution, and abundance of listed species
- Create plans to protect threatened and endangered species
Survey methods
- Acoustic surveys
- Visual observations
- Cameras
- Live species traps
- Habitat assessments
- Species-specific surveys
- Mark-recapture surveys
Survey results
- Used to create Biological Assessments, Ecological Assessments, and CEQA & NEPA compliance documents
- Used to develop mitigation and management plans
- Used to design project alternatives to limit potential impacts on rare species
Threatened & Endangered Species Survey Projects
Mojave River West Levee Phase II Project
Leatherman BioConsulting crew surveyed several state and federally listed riparian bird species, including the western yellow-billed cuckoo, southwestern willow flycatcher, and Bell’s vireo.
California Gnatcatcher Studies
Leatherman BioConsulting conducted California gnatcatcher studies throughout much of Orange County’s habitat, including approximately 50,000 acres of land managed by the Natural Communities Coalition and The Nature Conservancy.
Desert Tortoise Monitoring Emergency Bridge Repair along National Trails Highway
Leatherman BioConsulting team provided desert tortoise biologists to monitor the emergency repair of over 50 bridges along a 60-mile stretch of the highway, which was closed for several months.
Camp Pendleton Burrowing Owl Habitat Assessment and Survey
Leatherman BioConsulting was contracted to ground truth a GIS model of the burrowing owl habitat and conducted a base-wide survey for the burrowing owl on Camp Pendleton.
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