Publications
What determines the evolutionary trajectories of wild plant species? Approaches to the study of quantitative fitness‐related traits." American Journal of Botany 109, no. 11 (2022): 1673-1682.
"Historical changes in flowering phenology are governed by temperature x precipitation interactions in a widespread perennial herb in western North America." New Phytologist 210 (2016): 157-167.
"Relationship between genetic structure and seed and pollen dispersal in the endangered orchid Spiranthes spiralis." New Phytologist 157 (2003): 677-687.
"Allozyme variation in Ulmus species from France: analysis of differentiation." Heredity 78 (1997): 12.
"Nitrogen: phosphorous supply ratio and allometry in five alpine plant species." Ecology and evolution 6 (2016): 8881-8892.
" A new phenological metric for use in pheno‐climatic models: A case study using herbarium specimens of Streptanthus tortuosus." Applications in Plant Sciences 7, no. 7 (2019).
"Region-specific phenological sensitivities and rates of climate warming generate divergent temporal shifts in flowering date across a species’ range." American Journal of Botany.
"Region-specific phenological sensitivities and rates of climate warming generate divergent temporal shifts in flowering date across a species’ range." American Journal of Botany (2021).
"Geographic variation in offspring size: Long- and short-term climate affect mean seed mass of Streptanthus populations." Ecology e3698 (2022).
"Machine Learning Undercounts Reproductive Organs on Herbarium Specimens but Accurately Derives Their Quantitative Phenological Status: A Case Study of Streptanthus tortuosus." plants 10 (2021).
"Allee effects within small populations of Aconitum napellus ssp. lusitanicum, a protected subspecies in northern France." New Phytologist 179 (2008): 1171-1182.
"Heritability and variance components of seed size in wild species: influences of breeding design and the number of genotypes tested." Heredity 130 (2023): 251-258.
"Genotype × environment interaction obscures genetic sources of variation in seed size in Dithyrea californica but provides the opportunity for selection on phenotypic plasticity." American Journal of Botany 109, no. 11 (2022): 1547-1860.
"Pollen limitation of plant reproduction: pattern and process." Annu. Rev. Ecol. Evol. Syst. 36 (2005): 467-497.
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Plant ecotypes: genetic differentiation in the age of ecological restoration." Trends in Ecology & Evolution 18 (2003): 147-155.
"Local adaptation and effects of grazing among seedlings of two native california bunchgrass species: Implications for restoration." Restoration Ecology 16 (2008): 59-69.
"Local adaptation and the effects of grazing on the performance of Nassella pulchra: implications for seed sourcing in restoration." Restoration Ecology 20 (2012): 688-695.
"Genetic variation among mainland and island populations of a native perennial grass used in restoration." AoB Plants 6 (2014).
"Soil heterogeneity and the distribution of native grasses in California: Can soil properties inform restoration plans?" Ecosphere 5 (2014): 1-14.
"Pollen performance in Clarkia taxa with contrasting mating systems: implications for male gametophytic evolution in selfers and outcrossers." Plants 2 (2013): 248-278.
"Seed set variation in wild Clarkia populations: teasing apart the effects of seasonal resource depletion, pollen quality, and pollen quantity." Ecology and evolution 6 (2016): 6524-6536.
"The phenology handbook." University of California, Santa Barbara (2008): P41.
"The California Phenology Project: tracking plant responses to climate change." Madroño 60 (2013): 1-3.
"A flora of the University of California Natural Reserve System." Website http://nrs. ucop. edu/reserves/flora/flora. htm [accessed 01 October 2012] (2011).
"Geographic variation in primary sex allocation per flower within and among 12 species of Pedicularis (Orobanchaceae): proportional male investment increases with elevation." American Journal of Botany 97 (2010): 1334-1341.
"Geographic variation in seed mass within and among nine species of Pedicularis (Orobanchaceae): effects of elevation, plant size and seed number per fruit." Journal of Ecology 98 (2010): 1232-1242.
"Reproductive allometry in Pedicularis species changes with elevation." Journal of Ecology 100 (2012): 452-458.
"Biological invasions in nature reserves in China." In Biological invasions and its management in China, 125-147. Springer, Dordrecht, 2017.
"A new fine-grained method for automated visual analysis of herbarium specimens: a case study for phenological data extraction." Applications in Plant Sciences 8: e11368 (2020).
" Phenological responsiveness to climate differs among four species of Quercus in North America." Journal of Ecology 105 (2017): 1610-1622.
" "The resurrection initiative: storing ancestral genotypes to capture evolution in action." AIBS Bulletin 58 (2008): 870-873.
"Seed allometry and disperser assemblages in tropical rainforests: a comparison of four floras on different continents." 2007) Seed dispersal: theory and its application in a changing world. Wallingford, UK: CAB International Publishing (2007): 5-36.
"Project Baseline: An unprecedented resource to study plant evolution across space and time." American Journal of Botany 103 (2016): 164-173.
"How climate change affects plants' sex lives." Science 353 (2016): 32-33.
" "Could seasonally deteriorating environments favour the evolution of autogamous selfing and a drought escape physiology through indirect selection? A test of the time limitation hypothesis using artificial selection in Clarkia." Annals of Botany 121 (2018): 753-766.
"The plant phenology monitoring design for the national ecological observatory network." Ecosphere 7 (2016): e01303.
"The joint evolution of mating system, floral traits and life history in Clarkia (Onagraceae): genetic constraints vs. independent evolution." Journal of evolutionary biology 20 (2007): 2200-2218.
"Physiological performance and mating system in Clarkia (Onagraceae): Does phenotypic selection predict divergence between sister species?" American Journal of Botany 99 (2012): 488-507.
"Seasonal changes in physiological performance in wild Clarkia xantiana populations: implications for the evolution of a compressed life cycle and self-fertilization." American journal of botany 102 (2015): 962-972.
"Forecasting phenology: from species variability to community patterns." Ecology letters 15 (2012): 545-553.
"Temporal variation in the pollen: ovule ratios of Clarkia (Onagraceae) taxa with contrasting mating systems: field populations." Journal of evolutionary biology 21 (2008): 310-323.
"Nutrient levels and salinity affect gender and floral traits in the autogamous Spergularia marina." International Journal of Plant Sciences 157 (1996): 621-631.
"Size-dependent pollen: ovule ratios and the allometry of floral sex allocation in Clarkia (Onagraceae) taxa with contrasting mating systems." American Journal of Botany 96 (2009): 968-978.
"The neighborhood matters: effects of neighbor number and sibling (or kin) competition on floral traits in Spergularia marina (Caryophyllaceae)." Evolution 56 (2002): 2406-2413.
"The structure of phenotypic variation in gender and floral traits within and among populations of Spergularia marina (Caryophyllaceae)(vol 82, pg 798, 1995) In AMERICAN JOURNAL OF BOTANY. Vol. 83. BOTANICAL SOC AMER INC OHIO STATE UNIV-DEPT BOTANY 1735 NEIL AVE, COLUMBUS, OH 43210, 1996.
The structure of phenotypic variation in gender and floral traits within and among populations of Spergularia marina (Caryophyllaceae)." American Journal of Botany 82 (1995): 798-810.
"Phenology in higher education: ground-based and spatial analysis tools." In Phenology: An Integrative Environmental Science, 585-602. Springer, Dordrecht, 2013.
"Phylogenetic conservatism in plant phenology." Journal of Ecology 101 (2013): 1520-1530.
" "Sensitivity of spring phenology to warming across temporal and spatial climate gradients in two independent databases." Ecosystems 15 (2012): 1283-1294.
"Physiological impact of metal oxide nanoparticles in soil-grown Clarkia (Onagraceae)." In ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. Vol. 241. AMER CHEMICAL SOC 1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2011.
"Evidence for nanoparticle induced photoxicity in a soil-grown wildflower." In ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. Vol. 248. AMER CHEMICAL SOC 1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2014.
"Environmental stresses increase photosynthetic disruption by metal oxide nanomaterials in a soil-grown plant." Acs Nano 9 (2015): 11737-11749.
"Uptake, distribution, and physiological impacts of metal oxide nanoparticles in mature crop plants: Evidence for nanophototoxicity?" In ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. Vol. 250. AMER CHEMICAL SOC 1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2015.
"The effect of position on fruit characteristics, and relationships among components of yield in Phytolacca rivinoides (Phytolaccaceae)." Biotropica (1990): 353-365.
"Ovule number per flower in a world of unpredictable pollination." American Journal of Botany 96 (2009): 1159-1167.
"Evolving plans for the USA National Phenology Network." Eos, Transactions American Geophysical Union 88 (2007): 211.
"Pollen limitation of plant reproduction: ecological and evolutionary causes and consequences." Ecology 85 (2004): 2408-2421.
"Parental environmental effects on life history traits in Arabidopsis thaliana (Brassicaceae)." The New Phytologist 142 (1999): 173-184.
"Talking Through the Keys." Dalhousie Journal of Interdisciplinary Management 1 (2010).
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