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biological resources services

EcoPlan maintains a well-trained staff of biological professionals through continual and diverse project experience, continued education, and training. EcoPlan’s in-house biologists prepare Biological Evaluations (BE) and Biological Assessments (BA) that comply with current local, state, and federal requirements and regulations. Our BEs and BAs have allowed major projects throughout Arizona and neighboring Southwest states to move forward on a timely basis while in accordance with environmental laws and constraints. By utilizing up-to-date species occurrences, distribution, and suitable or critical habitat data along with a detailed description of project components, EcoPlan is able to create a solid, legally defensible document, at a competitive price for our industry. These documents include preliminary site screening or biological review reports, biological monitoring plans, wetland delineations, and terrestrial and aquatic species and habitat conservation plans.


Our research assignments include but are not limited to the following:

  • Endangered Species Act Compliance, education, and awareness trainings

  • Endangered, threatened, and sensitive species research and surveys

  • Habitat conservation planning

  • Riparian community surveys

  • Wildlife roadway crossing studies

  • Urban, rural and remote trail camera data collection

  • General plant and wildlife identification, distribution, and inventories

  • Noxious and invasive plant inventory and mapping

  • Protected native plant inventory and mapping

  • Revegetation and reclamation options, recommendations, and planning

  • Wetland and aquatic habitat studies

  • Ecological studies

2018 Fort Thomas Avian Surveys

In January 2019, on behalf of SRP, EcoPlan completed its sixth year of avian surveys on the Fort Thomas Preserve. EcoPlan surveyed Southwestern willow flycatcher (SWFL) and yellow-billed cuckoo (YBCU) populations within the two study areas, totaling 1,253 acres. As part of this study, habitat conditions were recorded, and photos were taken to meet the obligations of two habitat conservation plans. During the 2018 surveys, a record number of SWFL (featured right) territories were recorded.

These surveys are required as part of mitigation obligations under the Roosevelt Lake Habitat Conservation Plan (Roosevelt Dam improvements) and the Horseshoe-Bartlett Habitat Conservation Plan (Horseshoe Dam improvements). SRP and the U.S. Bureau of Reclamation acquired riparian habitat along the Gila River in Graham County, Arizona. SRP is required to monitor the effectiveness of mitigation measures by conducting periodic surveys of WIFL and YBCU populations and evaluating habitat condition at the mitigation properties.

The desert tortoise is native to Arizona, California, Nevada and Utah and has a lifespan of up to 50 to 80 years.

The desert tortoise is native to Arizona, California, Nevada and Utah and has a lifespan of up to 50 to 80 years.


Arizona Cliffrose

The Arizona Cliffrose has been listed as endangered since 1984.


Southwestern willow flycatcher

Experts can distinguish the Southwestern willow flycatchers from other look-alike species by their loud, raspy "fitz-bew" song.

Photo Credit: Robert Klotz