Ian Pearse, PhD
Ian is an ecologist who works on plants and insects.
Ian conducts research at the individual, population, community, and ecosystem level scales. His work focuses on plant-insect interactions and involves work on endangered insects such as bumble bees, strategies to map and control invasive plants, the chemical ecology and behaviors that affect herbivory, and the boom and bust seed production dynamics of many trees (i.e. mast seeding). His work informs management decisions made by the US Fish and Wildlife Service, National Parks, and a variety of other groups. Ian is especially fond of oak trees and spends a considerable amount of time staring up into them with the vague excuse of counting acorns, gall wasps, or rates of herbivory.
Professional Experience
2016 Postdoctoral work, University of California, Davis
2014-2015 Postdoctoral work, Illinois Natural History Survey
2012-2013 Postdoctoral work, Cornell University
Education and Certifications
PhD Entomology, University of California, Davis, 2011
BS Plant Biology, University of Illinois, Urbana-Champaign 2004
Affiliations and Memberships*
International Oak Society
Ecological Society of America
Entomological Society of America
Science and Products
A modeling workflow that balances automation and human intervention to inform invasive plant management decisions at multiple spatial scales
Population ecology and spatial synchrony in abundance within and among populations of valley oak (Quercus lobata) leaf gall wasps
Aridity drives spatiotemporal patterns of masting across the latitudinal range of a dryland conifer
From theory to experiments for testing the proximate mechanisms of mast seeding: An agenda for an experimental ecology
Nutrient scarcity as a selective pressure for mast seeding
Climate teleconnections synchronize Picea glauca masting and fire disturbance: Evidence for a fire‐related form of environmental prediction
Plants trap pollen to feed predatory arthropods as an indirect resistance against herbivory
Genomic identity of white oak species in an eastern North American syngameon
From Manitoba to Texas: A study of the population genetic structure of bur oak (Quercus macrocarpa)
Species profile: Quercus parvula
The development and delivery of species distribution models to inform decision-making
Non-native plants have greater impacts because of differing per-capita effects and non-linear abundance-impact curves
Non-USGS Publications**
http://onlinelibrary.wiley.com/doi/10.1111/nph.14114/full
http://onlinelibrary.wiley.com/doi/10.1111/1365-2745.12554/pdf
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0152537
http://onlinelibrary.wiley.com/doi/10.1890/14-0297.1/ful
http://onlinelibrary.wiley.com/doi/10.1890/15-0342.1/full
http://link.springer.com/article/10.1007/s10531-010-9956-0
http://www.pnas.org/content/106/43/18097.short
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3040.2005.01307.x/full
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
A modeling workflow that balances automation and human intervention to inform invasive plant management decisions at multiple spatial scales
Population ecology and spatial synchrony in abundance within and among populations of valley oak (Quercus lobata) leaf gall wasps
Aridity drives spatiotemporal patterns of masting across the latitudinal range of a dryland conifer
From theory to experiments for testing the proximate mechanisms of mast seeding: An agenda for an experimental ecology
Nutrient scarcity as a selective pressure for mast seeding
Climate teleconnections synchronize Picea glauca masting and fire disturbance: Evidence for a fire‐related form of environmental prediction
Plants trap pollen to feed predatory arthropods as an indirect resistance against herbivory
Genomic identity of white oak species in an eastern North American syngameon
From Manitoba to Texas: A study of the population genetic structure of bur oak (Quercus macrocarpa)
Species profile: Quercus parvula
The development and delivery of species distribution models to inform decision-making
Non-native plants have greater impacts because of differing per-capita effects and non-linear abundance-impact curves
Non-USGS Publications**
http://onlinelibrary.wiley.com/doi/10.1111/nph.14114/full
http://onlinelibrary.wiley.com/doi/10.1111/1365-2745.12554/pdf
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0152537
http://onlinelibrary.wiley.com/doi/10.1890/14-0297.1/ful
http://onlinelibrary.wiley.com/doi/10.1890/15-0342.1/full
http://link.springer.com/article/10.1007/s10531-010-9956-0
http://www.pnas.org/content/106/43/18097.short
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3040.2005.01307.x/full
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government