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Mark A Ricca

I have spent my USGS career focused on addressing science needs of resource managers and agencies across a wide range of ecosystems by integrating concepts from population, community, and ecosystem ecology. 

My experience spans ecological systems ranging from desert wetlands in California to sub-arctic islands in Alaska to rangelands of the American West. I now help facilitate science production for principal investigators at FRESC.

Professional Experience

  • 2019-present: Supervisory Biologist-Research Manager, USGS Forest and Rangeland Ecosystem Science Center, Corvallis, OR

  • 2002-2020: Wildlife Biologist, USGS Western Ecological Research Center, Dixon, CA

  • 2000-2002: Biological Science Technician, USGS Western Ecological Research Center, Dixon, CA

  • 1999: Faculty Research Assistant, Oregon State University, Corvallis, OR

  • 1996-1999: Graduate Research Assistant, Oregon State University, Corvallis, OR

  • 1994-1996: Field Biologist, California Department of Fish and Game, Sacramento, CA

Education and Certifications

  • Ph.D., Ecology, University of California, Davis, CA (2013)

  • M.S., Wildlife Science, Oregon State University, Corvallis OR (2000)

  • B.S. Wildlife, Humboldt State University, Arcata, CA (1995)

Science and Products

If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.

Filter Total Items: 19
No Result Found

If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.

Filter Total Items: 74

Using presence of sign to measure habitats used by Roosevelt elk Using presence of sign to measure habitats used by Roosevelt elk

tract Radiotelemetry and pellet-group surveys are methods used commonly to measure habi- tat use by large ungulates. However, telemetry can be expensive and analysis of data col- lected from pellet-group surveys is restricted to rank analysis. We explored the feasibil- ity of recording the presence of Roosevelt elk (Cervus elaphus roosevelti) sign to identify habitats used by elk. We...
Authors
Floyd Weckerly, Mark A. Ricca
By
Ecosystems Mission Area, Western Ecological Research Center (WERC)

Effects of soil moisture and temperature on overwintering survival of Curculio larvae (Coleoptera : Curculionidae) Effects of soil moisture and temperature on overwintering survival of Curculio larvae (Coleoptera : Curculionidae)

Few studies to date have investigated factors, other than mast crop size, that influence the dynamics of Curculio populations.W e examined the effects of varying levels of soil moisture (0.35, 0.4 and 0.5 g water/g soil) and temperature (8, 14 and 20 C) on over wintering survival of Curculio larvae collected from Quercus michauxii acorns. Survival of larvae, analyzed using log-linear...
Authors
Mark Ricca, Floyd Weckerly, Raymond Semlitsch
By
Ecosystems Mission Area, Western Ecological Research Center (WERC)

To request an interview, contact fresc_outreach@usgs.gov or call (541) 750-1030.

Science and Products

If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.

Filter Total Items: 19
No Result Found

If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.

Filter Total Items: 74

Using presence of sign to measure habitats used by Roosevelt elk Using presence of sign to measure habitats used by Roosevelt elk

tract Radiotelemetry and pellet-group surveys are methods used commonly to measure habi- tat use by large ungulates. However, telemetry can be expensive and analysis of data col- lected from pellet-group surveys is restricted to rank analysis. We explored the feasibil- ity of recording the presence of Roosevelt elk (Cervus elaphus roosevelti) sign to identify habitats used by elk. We...
Authors
Floyd Weckerly, Mark A. Ricca
By
Ecosystems Mission Area, Western Ecological Research Center (WERC)

Effects of soil moisture and temperature on overwintering survival of Curculio larvae (Coleoptera : Curculionidae) Effects of soil moisture and temperature on overwintering survival of Curculio larvae (Coleoptera : Curculionidae)

Few studies to date have investigated factors, other than mast crop size, that influence the dynamics of Curculio populations.W e examined the effects of varying levels of soil moisture (0.35, 0.4 and 0.5 g water/g soil) and temperature (8, 14 and 20 C) on over wintering survival of Curculio larvae collected from Quercus michauxii acorns. Survival of larvae, analyzed using log-linear...
Authors
Mark Ricca, Floyd Weckerly, Raymond Semlitsch
By
Ecosystems Mission Area, Western Ecological Research Center (WERC)

To request an interview, contact fresc_outreach@usgs.gov or call (541) 750-1030.

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