Current Research

My current research involves examining trends and patterns in phenology, and how phenology in California is shifting as the climate changes. I am especially interested in how phenology shifts will affect species interactions. I am passionate about connecting science to practice, and all of my research is shaped by working directly with restoration and conservation professionals.

Below are brief descriptions about the current projects. Please email me for more information.

1) Grassland community phenology at Pepperwood Preserve

In 2015-2018 I recorded the timing of flowering and fruiting in the grasslands communities at Pepperwood Preserve in Santa Rosa California. I am examining phenology trends in species between different microsites (North and South facing aspects), and between different years.

The first paper from this work was recently published in Ecology and Evolution:    Olliff‐Yang, RLAckerly, DDTopographic heterogeneity lengthens the duration of pollinator resourcesEcol Evol2020109301– 9312https://doi.org/10.1002/ece3.6617

2) Phenology dynamics in the Lasthenia californica complex

In this project I am examining phenology trends in Lasthenia species (L. californica and L. gracilis), at the local and regional level. These annual plant species are often used in grassland restoration projects in California. I am interested in phenology differences in these species within and between sites, and how these differences might impact restoration planning.

3) Bird breeding phenology trends in Marin County, California

I am working with Point Blue Conservation Science to examine bird breeding phenology trends in Marin County California. In this study I am looking at differences in breeding phenology trends between resident and migrant birds. Point Blue has been banding birds in the Point Reyes area for over 5o years. I am excited to be working with them to analyze part of the amazing data they have collected over the years.

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