Lab Members

Neal Williams – I am an evolutionary ecologist whose research ranges from basic bee and pollination biology to conservation biology and agricultural pollination.  I am deeply interested in the interactions of flower visitors and the floral hosts which they often pollinate.  I explore questions about pollinators, flowering plants and pollination from a variety of perspectives and at different scales from the foraging of individual bees, to the persistence of their populations, to the stability and dynamics of their communities in space and time. –more about my research

Graduate students


Jennifer Van Wyk – I am broadly interested in floral evolution, pollinator community structure and global change.   Currently I work in restored wet meadows in the Sierra Nevada – investigating temporal patterns of pollinator community assembly and functional restoration.  My previous research has looked at butterfly constancy in a manipulated phenotypic array as well as single visit success and pollen load capacity of butterflies visiting Hymenoxys hoopesii.

unnamedLeslie Saul – My previous research documented cooperative aggressive chemical and visual mimicry in a blister beetle bee nest parasite. The larvae of Meloe franciscanus cooperate to mimic the sex pheromones of the solitary bee Habropoda pallida female to lure in males.  The larvae then attach to the male bee and then transfer to female bees when the male attempts to copulate with the female bee. My research interests include the evolution of chemical mimicry systems and the selection pressures on sex pheromone communication system of bees. I am also interested in the pollination ecology and conservation biology of native bees.


Margaret Rei Scampavia – My research deals with isolating and identifying specific soil attributes that affect nest site selection in ground nesting bees, and how these attributes impact offspring success. I am also interested in how nesting habitat availability shapes bee community composition and distribution across the landscape. My current focus is on sunflower fields and serpentine mosaic grasslands. Prior to arriving at Davis, I studied rare plant reproductive biology.


DSCN1107Ross Brennan – My interests range from basic bee and plant biology to community ecology and ecosystem function. I am particularly fascinated by how species interact as members of complex networks, how individuals accumulate into populations and communities, and how species play different roles within ecological communities. My previous work has focused on the co-flowering phenology of montane wildflower communities, phenology and diversity of Rocky Mountain bee species, and characterizing a bipartite plant-pollinator interaction network across time. I hope to explore the spatiotemporal dynamics and ecosystem functional roles of various plants and pollinators within natural plant-pollinator networks. Megachile relativa is one of my favorite native bee species.


J_mola_labpageJohn Mola – I intend to conduct research on the spatial components of bumblebee population dynamics. I find the tricky ways seeds, bees, and pollen get around to be rather fascinating and am broadly interested in how climate change may alter their dispersal mechanisms. For my master’s work at Humboldt State University, I focused on the management potential of Osmia lignaria on small Northern California farms. I can sometimes be found giving impromptu lectures on bees to interested (or helpless) strangers in the hot springs of the Eastern Sierra. I can be reached at


Postdoctoral researchers

OlaOla Lundin – I am interested in how functionally important insects in agriculture like pollinators, pests and natural enemies are affected by agricultural management and environmental drivers at the field, landscape and regional scale. In my PhD project I explored these questions in Swedish clover seed production, studying pollination and pest control provided by bumble bees and parasitoids attacking economically important seed predators. In my postdoc project I will be working with enhancement of pollination and pest control services with wildflower plantings as a part of the ICP project. My CV and Publications.

Claire Brittain – My research explores the effect of local farm attributes and landscape on pollination.  My expertise also extends to pesticide impacts on native bees. 




Project Specialist

Kimiora Ward -Kimiora,  an expert in plant restoration ecology, is a key collaborator in and manager of projects surrounding habitat enhancement to bolster native pollinators.




Junior Specialists

LRLogan Rowe –  I am  working on projects that aim to boost the abundance and diversity of native pollinators in agricultural systems.  My interests include examining the roles that native pollinators play in pollination systems and whether floral enhancements increase the populations of ground nesting bees within agricultural landscapes. I am also interested in more general questions related to pollen usage and foraging behavior in bees.

unnamed1Kitty Bolte – I am interested in increasing native bee abundance and diversity through restoration projects in agricultural settings, and also in understanding best practices for successfully implementing this type of restoration. I work closely with Kimiora to establish and maintain native habitat enhancements in almond and watermelon landscapes.

Undergraduate Researchers

Leila Haghi (University of California, Davis 2016)

Jessica Drost (University of California, Davis 2017)

Kevin Tahara (University of California, Davis 2017)




Jessica Forrest  Assistant Professor University of Ottawa

Jochen Fruend Postdoctoral Scholar, University of Guelph

Sandra Gillespie Postdoctoral Scholar, Simon Fraser University

Graduate Students

Katharina Ullmann (PhD) 2014 – I am currently employed as a Crop Pollination Specialist with the Xerces Society for Invertebrate Conservation. As part of this position I work on extension and outreach associated with the Integrated Crop Pollination Project. I continue to be interested in how pollinators and the services they provide persist in intensified agricultural landscapes. I am also interested in pollinator habitat restoration, extension, and science communication.  For more information about my previous experiences take a look at my CV. You can also look at the Pollinator Farm blog I manage.

Ryder Diaz (M.S.) 2012

Felix Klaus – (Fulbright Scholar) 2014 Current M.S. student in Teja Tschartnke’s group at Georg-August-University Göttingen


Sarah Bolm (University of California, Davis 2012)

Mira Parekh (University of California, Davis 2013)

Alexi Haack (University of California, Davis 2013)

Emily McGlynn (B.A., Bryn Mawr College 2009) – Native bee benefits for agriculture in the Mid-atlantic

Kristen Jenkins (B.A.,Bryn Mawr College 2009) – Functional Compensation and biodiversity loss

Sarah Allard (B.A.,Haverford College 2009) – Functional Compensation and biodiversity loss

Cecily Moyer (B.A.,Haverford College 2009) – The role of floral morphology and reward in structuring pollinator plant networks

Rosemary Malfi (B.A.,Bryn Mawr College 2007) – The effect of urban development on Bombus communities in the Delaware Valley, PA

Daniela Miteva (B.A.,Bryn Mawr College 2007) – Pollinator communities and pollination in eastern old fields, Pollinator and pollen deposition webs in restored meadows

Amanda Rahi (B.A.,Bryn Mawr College 2007) – The contributions of specialist and generalist bees to reproductive success of desert mallow