Publications
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Context-dependent concordance between physiological divergence and phenotypic selection in sister taxa with contrasting phenology and mating systems." American Journal of Botany (2022).
"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 offspring size: Long- and short-term climate affect mean seed mass of Streptanthus populations." Ecology e3698 (2022).
"Herbarium specimens provide reliable estimates of phenological responses to climate at unparalleled taxonomic and spatiotemporal scales." Ecography e06173 (2022).
"Spatial uncertainty in herbarium data: simulated displacement but not error distance alters estimates of phenological sensitivity to climate in a widespread California wildflower." Ecography e06107 (2022).
"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.
"Advancing frost dates have reduced frost risk among most North American angiosperms since 1980." Global Change Biology 27 (2021): 165-176.
"CBS PRESIDENT’S REPORT FOR VOLUME 67." Madrono 67, no. 4 (2021): 227-228.
"Machine Learning Undercounts Reproductive Organs on Herbarium Specimens but Accurately Derives Their Quantitative Phenological Status: A Case Study of Streptanthus tortuosus." plants 10 (2021).
"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.
"A Phenology-focused CURE using Herbarium Specimen Data. Cultivating Scientific Curiosity, (Version 2.0)." QUBES Educational Resources doi:10.25334/3132-PV71 (2021).
"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).
"California Botanical Society President's Report for 2020." Madrono 67, no. 4 (2020): 227-228.
"Climate predicts UV floral pattern size, anthocyanin concentration, and pollen performance in Clarkia unguiculata." Frontiers in Ecology and Evolution 10 (2020): 1856-1875.
"Machine Learning Using Digitized Herbarium Specimens to Advance Phenological Research." BioScience (2020).
"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).
"Sex-specific floral attraction traits in a sequentially hermaphroditic species." Ecology and Evolution DOI: 10.1002/ece3.5987 (2020).
"Trade‐off drives Pareto optimality of within‐and among‐year emergence timing in response to increasing aridity." Evolutionary Applications 14, no. 3 (2020).
"The California Phenology Collections Network: using digital images to investigate phenological change in a biodiversity hotspot." Madroño 66, no. 4 (2019): 130-141.
"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).
" "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.
" "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).
" 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).
" "Testing mechanisms of compensatory fitness of dioecy in a cosexual world." Jornal of Vegetation Science 30 (2019): 413-426.
"2018 CBS Banquet at UC Davis." Madroño 65 (2018): 65.
"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.
"Digitization protocol for scoring reproductive phenology from herbarium specimens of seed plants." Applications in Plant Sciences 6 (2018): e1022.
"Divergence in pollen performance between Clarkia sister species with contrasting mating systems supports predictions of sexual selection." Evolution 72 (2018): 453-472.
"Overlooked climate parameters best predict flowering onset: Assessing phenological models using the elastic net." Global Change Biology (2018).
"Biological invasions in nature reserves in China." In Biological invasions and its management in China, 125-147. Springer, Dordrecht, 2017.
"CBS President's Report for Volume 64." Madroño 64 (2017): 154-155.
"Old plants, new tricks: Phenological research using herbarium specimens." Trends in ecology & evolution 32 (2017): 531-546.
"Phenological responsiveness to climate differs among four species of Quercus in North America." Journal of Ecology 105 (2017): 1610-1622.
"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.
"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.
"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.
"Nitrogen: phosphorous supply ratio and allometry in five alpine plant species." Ecology and evolution 6 (2016): 8881-8892.
"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.
"The plant phenology monitoring design for the national ecological observatory network." Ecosphere 7 (2016): e01303.
" "Pollen—Tiny and ephemeral but not forgotten: New ideas on their ecology and evolution." American journal of botany 103 (2016): 365-374.
"Project Baseline: An unprecedented resource to study plant evolution across space and time." American Journal of Botany 103 (2016): 164-173.
"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.
"Winning in style: Longer styles receive more pollen, but style length does not affect pollen attrition in wild Clarkia populations." American Journal of Botany 103 (2016): 408-422.
"Environmental stresses increase photosynthetic disruption by metal oxide nanomaterials in a soil-grown plant." Acs Nano 9 (2015): 11737-11749.
"Inheritance of rapid cycling in Brassica rapa fast plants: dominance that increases with photoperiod." International Journal of Plant Sciences 176 (2015): 859-868.
"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.
"Species-specific phenological responses to winter temperature and precipitation in a water-limited ecosystem." Ecosphere 6 (2015): 1-27.
"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.
"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.
" " "The California Phenology Project: tracking plant responses to climate change." Madroño 60 (2013): 1-3.
"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.
" 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.
" "Forecasting phenology: from species variability to community patterns." Ecology letters 15 (2012): 545-553.
"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.
"Physiological performance and mating system in Clarkia (Onagraceae): Does phenotypic selection predict divergence between sister species?" American Journal of Botany 99 (2012): 488-507.
"Regeneración de plantas vía organogénesis y crioconservación de Jatropha curcas L.. CATIE, Turrialba (Costa Rica), 2012.
Reproductive allometry in Pedicularis species changes with elevation." Journal of Ecology 100 (2012): 452-458.
"Sensitivity of spring phenology to warming across temporal and spatial climate gradients in two independent databases." Ecosystems 15 (2012): 1283-1294.
"Warming experiments underpredict plant phenological responses to climate change." Nature 485 (2012): 494.
"A flora of the University of California Natural Reserve System." Website http://nrs. ucop. edu/reserves/flora/flora. htm [accessed 01 October 2012] (2011).
"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.
"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 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.
"Physiological performance in Clarkia sister taxa with contrasting mating systems: do early-flowering autogamous taxa avoid water stress relative to their pollinator-dependent counterparts?" International Journal of Plant Sciences 171 (2010): 1029-1047.
"Stigma closure and re-opening in Oroxylum indicum (Bignoniaceae): Causes and consequences." American Journal of Botany 97 (2010): 136-143.
"Talking Through the Keys." Dalhousie Journal of Interdisciplinary Management 1 (2010).
"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.
"Ovule number per flower in a world of unpredictable pollination." American Journal of Botany 96 (2009): 1159-1167.
"Seed mass, abundance and breeding system among tropical forest species: do dioecious species exhibit compensatory reproduction or abundances?" Journal of ecology 97 (2009): 555-566.
"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.
"Stability of pollen–ovule ratios in pollinator-dependent versus autogamous Clarkia sister taxa: testing evolutionary predictions." New Phytologist 183 (2009): 630-648.
"Towards a Phenological Assessment of California: Integrating Multiple Data Sources and the Implications for Statewide Analyses." In AGU Fall Meeting Abstracts., 2009.
"Allee effects within small populations of Aconitum napellus ssp. lusitanicum, a protected subspecies in northern France." New Phytologist 179 (2008): 1171-1182.
"Are functional traits good predictors of demographic rates? Evidence from five neotropical forests." Ecology 89 (2008): 1908-1920.
"Breeding systems and seed size in a Neotropical flora: testing evolutionary hypotheses." Ecology 89 (2008): 2461-2472.
"Local adaptation and effects of grazing among seedlings of two native california bunchgrass species: Implications for restoration." Restoration Ecology 16 (2008): 59-69.
"The phenology handbook." University of California, Santa Barbara (2008): P41.
"The resurrection initiative: storing ancestral genotypes to capture evolution in action." AIBS Bulletin 58 (2008): 870-873.
"Sex ratio." (2008).
"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.
"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.
"Evolving plans for the USA National Phenology Network." Eos, Transactions American Geophysical Union 88 (2007): 211.
"Fruits of their labour." Nature 450 (2007): 1162.
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