Publications
2018 CBS Banquet at UC Davis." Madroño 65 (2018): 65.
"The absence of cryptic self-incompatibility in Clarkia unguiculata (Onagraceae)." American Journal of Botany 87 (2000): 191-196.
"Advancing frost dates have reduced frost risk among most North American angiosperms since 1980." Global Change Biology 27 (2021): 165-176.
"Allee effects within small populations of Aconitum napellus ssp. lusitanicum, a protected subspecies in northern France." New Phytologist 179 (2008): 1171-1182.
"Allozyme variation in Ulmus species from France: analysis of differentiation." Heredity 78 (1997): 12.
"Alternative approaches to the analysis of comparative data: compare and contrast." American Journal of Botany 85 (1998): 1194-1199.
"Angiosperm growth habit, dispersal and diversification reconsidered." Evolutionary Ecology 9 (1995): 93-117.
"Are functional traits good predictors of demographic rates? Evidence from five neotropical forests." Ecology 89 (2008): 1908-1920.
"Arenaria Paludicola (marsh Sandwort: Caryophyllaceae) and Rorippa Gambelii (Gambel's Watercress: Brassicaceae) in Black Lake Canyon and the Oso Flaco Lake Region: Field Observations, Greenhouse Cultivation, Molecular Genetic Variation, and Trial Reintrodu. Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, 2001.
Biological invasions in nature reserves in China." In Biological invasions and its management in China, 125-147. Springer, Dordrecht, 2017.
"Breeding systems and seed size in a Neotropical flora: testing evolutionary hypotheses." Ecology 89 (2008): 2461-2472.
"California Botanical Society President's Report for 2020." Madrono 67, no. 4 (2020): 227-228.
"The California Phenology Collections Network: using digital images to investigate phenological change in a biodiversity hotspot." Madroño 66, no. 4 (2019): 130-141.
"The California Phenology Project: tracking plant responses to climate change." Madroño 60 (2013): 1-3.
" "CBS PRESIDENT’S REPORT FOR VOLUME 67." Madrono 67, no. 4 (2021): 227-228.
"CBS President's Report for Volume 64." Madroño 64 (2017): 154-155.
"CBS President's Report for Volume 66." Madrono 66, no. 4 (2019).
"Climate affects the rate at which species successively flower: capturing an emergent property of regional florals." Global Ecology and Biogeography (2019).
"Climate predicts UV floral pattern size, anthocyanin concentration, and pollen performance in Clarkia unguiculata." Frontiers in Ecology and Evolution 10 (2020): 1856-1875.
"Comparative ecology of seed mass in Psychotria (Rubiaceae): within-and between-species effects of seed mass on early performance." Functional Ecology 19 (2005): 707-718.
"Constancy of population parameters for life history and floral traits in Raphanus sativus L. Norms of reaction and the nature of genotype by environment interactions." Heredity 67 (1991): 143.
"Constancy of population parameters for life-history and floral traits in Raphanus sativus L. II. Effects of planting density on phenotype and heritability estimates." Evolution 45 (1991): 1888-1907.
"Context-dependent concordance between physiological divergence and phenotypic selection in sister taxa with contrasting phenology and mating systems." American Journal of Botany (2022).
"Contrasting variation within and covariation between gender-related traits in autogamous versus outcrossing species: alternative evolutionary predictions." Evolutionary Ecology 12 (1998): 403-425.
"COS 97-1: Seed mass, abundance, and breeding system among tropical forest species: Do dioecious species exhibit compensatory reproduction or abundances?" In The 94th ESA Annual Meeting., 2009.
"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.
"Covariation among floral traits in Spergularia marina (Caryophyllaceae): geographic and temporal variation in phenotypic and among-family correlations." Journal of Evolutionary Biology 9 (1996): 993-1015.
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Digitization protocol for scoring reproductive phenology from herbarium specimens of seed plants." Applications in Plant Sciences 6 (2018): e1022.
" "Ecological, Taxonomic, and Life History Correlates of Seed Mass Among Indiana Dune Angiosperms: Ecological Archives M059-001." Ecological Monographs 59 (1989): 153-175.
"The effect of position on fruit characteristics, and relationships among components of yield in Phytolacca rivinoides (Phytolaccaceae)." Biotropica (1990): 353-365.
"Effects of mate size and mate number on male reproductive success in plants." Ecology 70 (1989): 71-76.
"Effects of nutrient availability on primary sexual traits and their response to selection in Spergularia marina (Caryophyllaceae)." Journal of evolutionary biology 16 (2003): 767-778.
" "Environmental, genetic, and seed mass effects on winged seed production in the heteromorphic Spergularia marina (Caryophyllaceae)." Functional Ecology 17 (2003): 637-650.
"Environmental stresses increase photosynthetic disruption by metal oxide nanomaterials in a soil-grown plant." Acs Nano 9 (2015): 11737-11749.
"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.
"Evolution of mating system and the genetic covariance between male and female investment in Clarkia (Onagraceae): selfing opposes the evolution of trade-offs." Evolution 61 (2007): 83-98.
"Evolutionary significance of variation." (2001).
"Evolving plans for the USA National Phenology Network." Eos, Transactions American Geophysical Union 88 (2007): 211.
"Family mean correlations among fitness components in wild radish: controlling for maternal effects on seed weight." Canadian journal of botany 67 (1989): 1890-1897.
"Fertilization dynamics and parental effects upon fruit development in Raphanus raphanistrum: consequences for seed size variation." American Journal of Botany 73 (1986): 500-511.
"A flora of the University of California Natural Reserve System." Website http://nrs. ucop. edu/reserves/flora/flora. htm [accessed 01 October 2012] (2011).
"Floral trait variation in Spergularia marina (Caryophyllaceae): ontogenetic, maternal family, and population effects." Heredity 77 (1996): 269.
"Floral traits influence the opportunity for selection among male gametophytes: independent and combined effects of style length and petal area." American Journal of Botany 106, no. 5 (2019): 744-753.
"Flowering date of taxonomic families predicts phenological sensitivity to temperature: implications for forecasting the effects of climate change on unstudied taxa." American Journal of Botany 100 (2013): 1381-1397.
"Forecasting phenology: from species variability to community patterns." Ecology letters 15 (2012): 545-553.
"Fruit size and shape: allometry at different taxonomic levels in bird-dispersed plants." Evolutionary Ecology 7 (1993): 556-575.
"Fruits of their labour." Nature 450 (2007): 1162.
"Fruits of Wetherellia and Palaeowetherellia (? Euphorbiaceae) from Eocene sediments in Virginia and Maryland." Brittonia 34 (1982): 300-333.
"Gametophytic selection in Raphanus raphanistrum: a test for heritable variation in pollen competitive ability." Evolution 42 (1988): 1065-1075.
"GC-TOF-MS based metabolomics and ICP-MS based metallomics of cucumber (Cucumis sativus) fruits reveal alteration of metabolites profile and biological pathway disruption induced by nano copper." Environmental Science: Nano 3 (2016): 1114-1123.
"Genetic variation among mainland and island populations of a native perennial grass used in restoration." AoB Plants 6 (2014).
"Genetic variation in life-history traits: heritability estimates within and genetic differentiation among populations." Life history evolution in plants (1999): 87-171.
"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.
"Geographic Variation in." Adaptive Genetic Variation in the Wild (2000): 157.
"Geographic variation in climate as a proxy for climate change: Forecasting evolutionary trajectories from species differentiation and genetic correlations." American journal of botany 103 (2016): 140-152.
"Geographic variation in flower size in wild radish: the potential role of pollinators in population differentiation." Adaptive genetic variation in the wild. Oxford University Press, New York (2000): 157-186.
"Geographic variation in offspring size: Long- and short-term climate affect mean seed mass of Streptanthus populations." Ecology e3698 (2022).
"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.
"The Heavy Metal-Tolerant Flora of Southcentral Africa: A Multidisciplinary Approach. Sigma Xi, The Scientific Research Society, 1987.
Herbarium specimens provide reliable estimates of phenological responses to climate at unparalleled taxonomic and spatiotemporal scales." Ecography e06173 (2022).
"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.
" "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.
"How climate change affects plants' sex lives." Science 353 (2016): 32-33.
"Inheritance of rapid cycling in Brassica rapa fast plants: dominance that increases with photoperiod." International Journal of Plant Sciences 176 (2015): 859-868.
"The joint evolution of mating system and pollen performance: predictions regarding male gametophytic evolution in selfers vs. outcrossers." Perspectives in Plant Ecology, Evolution and Systematics 12 (2010): 31-41.
"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.
"Life history, floral development, and mating system in Clarkia xantiana (Onagraceae): do floral and whole-plant rates of development evolve independently?" American Journal of Botany 91 (2004): 2041-2050.
"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.
"Machine Learning Undercounts Reproductive Organs on Herbarium Specimens but Accurately Derives Their Quantitative Phenological Status: A Case Study of Streptanthus tortuosus." plants 10 (2021).
"Machine Learning Using Digitized Herbarium Specimens to Advance Phenological Research." BioScience (2020).
"Maternal investment and male reproductive success in angiosperms: parent-offspring conflict or sexual selection?" Biological Journal of the Linnean Society 30 (1987): 115-133.
"Mating system and historical climate conditions affect population mean seed mass: Evidence for adaptation and a new component of the selfing syndrome in Clarkia." Journal of Ecology DOI: 10.1111/1365-2745.13338 (2019).
"Nature and causes of variation." (2001).
"The neighborhood matters: effects of neighbor number and sibling (or kin) competition on floral traits in Spergularia marina (Caryophyllaceae)." Evolution 56 (2002): 2406-2413.
"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).
" 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).
"Nitrogen: phosphorous supply ratio and allometry in five alpine plant species." Ecology and evolution 6 (2016): 8881-8892.
"Nutrient levels and salinity affect gender and floral traits in the autogamous Spergularia marina." International Journal of Plant Sciences 157 (1996): 621-631.
"Old plants, new tricks: Phenological research using herbarium specimens." Trends in ecology & evolution 32 (2017): 531-546.
"Outcrossing and photosynthetic rates vary independently within two Clarkia species: implications for the joint evolution of drought escape physiology and mating system." Annals of botany 118 (2016): 897-905.
"Overlooked climate parameters best predict flowering onset: Assessing phenological models using the elastic net." Global Change Biology (2018).
"Ovule number per flower in a world of unpredictable pollination." American Journal of Botany 96 (2009): 1159-1167.
"Parental effects on progeny phenotype in plants: distinguishing genetic and environmental causes." Evolution 50 (1996): 44-53.
"Parental effects on seed development and seed yield in Raphanus raphanistrum: implications for natural and sexual selection." Evolution 41 (1987): 355-371.
"Parental environmental effects on life history traits in Arabidopsis thaliana (Brassicaceae)." The New Phytologist 142 (1999): 173-184.
"Patterns of phenotypic plasticity and their fitness consequences in wild radish (Raphanus sativus: Brassicaceae)." International Journal of Plant Sciences 166 (2005): 631-640.
" Phenological responsiveness to climate differs among four species of Quercus in North America." Journal of Ecology 105 (2017): 1610-1622.
"Phenological sensitivities to climate are similar in two Clarkia congeners: indirect evidence for facilitation, convergence, niche conservatism, or genetic constraints." Madroño 68, no. 4 (2021): 388-405.
"Phenological trends in the California Poppy (Eschscholzia californica): digitized herbarium specimens reveal intraspecific variation in the sensitivity of flowering date to climate change." Madroño 68, no. 4 (2021): 343-359.
"The phenology handbook." University of California, Santa Barbara (2008): P41.
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