Publications

For full text copies of all publications see my ResearchGate page.

Cortés-Palomec, A. C., R. A. McCauley, and K. Oyama. Fine scale within-canopy genetic structure of the epiphytic orchid Laelia speciosa. International Journal of Plant Sciences. Submitted for Review.

McCauley, R. A., S. Allen, M. Breeden,  M. Weber-Sauer. 2017. Pollination ecology of the narrow endemic Ipomopsis ramosa (Polimoniaceae) in southwestern Colorado. Phytologia 99(2): 118-125.

McCauley, R. A. 2017. Climate Change and Columbine: Using herbarium specimens to track changes in flowering time of Aquilegia coerulea in Colorado. Aquilegia 41(1): 25-26.

McCauley R. A. 2016. High country violets – a study of the Viola adunca complex in the San Juan Mountains. Aquilegia 40(4): 16-18.

McCauley, R.A. and H. E. Ballard, Jr. 2013. Viola calcicola (Violaceae), a new endemic violet from the Guadalupe Mountains of New Mexico and Texas. Journal of the Botanical Research Institute of Texas 7(1): 9–20.

McCauley R. A, K. Jiménez Duran, and J. Márquez Guzmán. 2013. Doble fecundación Pp. 118-123. In Márquez Guzmán, J., Collazo Ortega, M., Martínez Gordillo, M., Orozco Segovia, A. Vázquez Santana, S. [eds]. Biología de angiospermas. UNAM, Facultad de Ciencias: Coordinación de la Investigación Cientifica.

McCauley R. A. 2013. Apomixis Pp. 154-157. In Márquez Guzmán, J., Collazo Ortega, M., Martínez Gordillo, M., Orozco Segovia, A. Vázquez Santana, S. [eds]. Biología de angiospermas. UNAM, Facultad de Ciencias: Coordinación de la Investigación Cientifica.

McCauley, R. A., B. J. Christie, E. L. Ireland, R. A. Landers, H. R. Nichols and M. T. Schendel. 2012. Influence of relictual species on the morphology of a hybridizing oak complex: an analysis of the Quercus x undulata complex in the Four Corners Region. Western North American Naturalist 72(3): 296–310.

McCauley R. A., A. C. Cortés-Palomec, and K. Oyama. 2010. Distribution, genetic structure, and conservation status of the rare microendemic species, Guaiacum unijugum (Zygophyllaceae) in the Cape Region of Baja California, Mexico. Revista Mexicana de Biodiversidad 81: 745–758.

Moreira, R. G., R. A. McCauley, A. C. Cortés-Palomec, G. W. Fernandes, and K. Oyama. 2010. Spatial genetic structure of Coccoloba cereifera (Polygonaceae), a critically endangered microendemic species of Brazilian rupestrian fields. Conservation Genetics 11(4): 1247–1255.

Moreira, R. G., R. A. McCauley, A. C. Cortés-Palomec, M. B. Lovato, G. W. Fernandes, and K. Oyama. 2008. Characterization of microsatellite loci in Coccoloba cereifera (Polygonaceae), an endangered species endemic to the Serra do Cipó, Brazil. Molecular Ecology Resources 8(4): 854–856.

McCauley R. A., A. C. Cortés-Palomec, and K. Oyama. 2008. Isolation, characterization, and cross-amplification of polymorphic microsatellite loci in Guaiacum coulteri (Zygophyllaceae). Molecular Ecology Resources 8(3): 671–674.

Cortés-Palomec, A. C., R. A. McCauley, and K. Oyama. 2008. Isolation, characterization, and cross-amplification of  polymorphic microsatellite loci in Laelia speciosa (Orchidaceae). Molecular Ecology Resources 8(1): 135–138. (Highlighted with issue cover illustration)

McCauley, R. A. and H. E. Ballard, Jr. 2007. Systematics of North American Froelichia (Amaranthaceae Subfam. Gomphrenoideae) I: Identification of consistent morphological variation and segregation of species complexes. Brittonia 59(3): 255–274.

McCauley, R. A. and H. E. Ballard, Jr. 2007. Systematics of North American Froelichia (Amaranthaceae Subfam. Gomphrenoideae) II: Phylogeny and biogeographic speciation patterns inferred from nrITS sequence data. Brittonia 59(3): 275–289.

Cortés-Palomec, A. C., R. A. McCauley, and H. E. Ballard, Jr. 2006. Population genetic structure in temperate and tropical species of Viola (Violaceae) with a mixed breeding system. International Journal of Plant Sciences 167(3): 503–512.

McCauley, R. A. 2004. New taxa and a new combination in the North American species of Froelichia (Amaranthaceae). Systematic Botany 29(1): 64–76.

McCauley, R. A. 2003.  Froelichia. Pp. 443-447. In Flora of North America Committee [eds.].  Flora of North America north of Mexico, Vol 4. Oxford University Press, New York.

McCauley, R. A. and H. E. Ballard, Jr. 2002. Inferring nativity and biogeographic affinities of central and marginal populations of Froelichia floridana (Amaranthaceae) from inter-simple sequence repeat (ISSR) markers. Journal of the Torrey Botanical Society 129(4): 311–325.

McCauley, R. A. and I. A. Ungar. 2002. Demographic analysis of a disjunct population of Froelichia floridana in the mid-Ohio River Valley. Restoration Ecology 10(2): 348–361.

Ballard, H. E., Jr., D. A. Casamatta, M. M. Hall, R. A. McCauley, M. C. Segovia-Salcedo, and R. G. Verb. 2001.  Phenetic analysis shows conspecificity between Hispaniolan Viola domingensis Urban and North American Viola macloskeyi Sensu Lato (Violaceae). Brittonia 53(1): 122–136.

Publications in Preparation

McCauley, R. A.  Phylogeny, historical phylogeography and species diversification in American Ostrya (Betulaceae). In preparation.

McCauley, R. A. Temperate refugees in a desert landscape: the phylogeography of the genus Ostrya across the southwest United States and northwestern Mexico. In preparation.

McCauley, R. A. Amaranthaceae, Fagaceae, and Violaceae. In. Heil, K. and S. O’Kane [eds.]. Flora of New Mexico. Missouri Botanical Garden Press, St. Louis. In preparation.

McCauley, R. A. and J. C. Havran. Paraphyly, hybridization, and multiple introductions in the evolution of the endemic Amaranthaceae of the Hawaiian Islands. In preparation.

McCauley, R. A., A. C. Cortés-Palomec, and K. Oyama. Phylogeography and species segregation in a disjunct lineage of Quercus across the Sierra Madre Occidental and southern Cordillera of Mexico (Quercus section Lobatae subsection Racemiflorae). In preparation.

McCauley R. A., A. C. Cortés-Palomec, and K. Oyama. Identifying conservation units in a threatened Mexican Ironwood: A range-wide phylogeographic study of Guaiacum coulteri (Zygophyllaceae). In preparation.

Selected Conference Abstracts/Posters

McCauley, R. A. An analysis of the importance of small herbaria for documenting plant biodiversity in Colorado. Annual Meeting of the Colorado Native Plant Society, Boulder, CO. September 2016. Poster

McCauley, R. A. Phylogeography of Ostrya knowltonii (Betulaceae) across the American southwest and northwestern Mexico: remnants of a widespread Neogene forest community. Botany 2016, Savannah, GA. July 2016. Abstract

McCauley, R. A., S. Allen, M. Breeden,  M. Weber-Sauer. Hybridization via long-distance pollen dispersal explains the occurrence of endemic Ipomopsis (Polemoniaceae) across the Southern Rockies. Botany 2016, Savannah, GA. July 2016 and Annual Meeting of the Colorado Native Plant Society, Boulder, CO. September 2016. Poster

McCauley, R. A. and M. N. Paces. A preliminary analysis of phylogeography and species diversification of Ostrya (Betulaceae) in the southwestern US and Mexico. Botany 2015, Edmonton, AB. July 2015. Poster

Marsico, T. D., J. J. Caron, R. Carter, E. Gillespie, E. Krimmel, P. D. Lowe, R. McCauley, A. B. Morris, G. Nelson, M. Smith, and A. K. Monfils. The role of small herbaria in contributing to the understanding of biodiversity patterns. Botany 2015, Edmonton, AB. July 2015. Abstract

R. A. McCauley and J. C. Havran. Paraphyly, hybridization, and multiple introductions in the origin and evolution of the endemic Amaranthaceae of the Hawaiian Islands (genera Achyranthes, Charpentiera and Nototrichium). Botany 2014, Boise, ID. July 2014. Poster

J. C. Havran and R. A. McCauley. Preliminary phylogeny of the endemic Hawaiian genus Nototrichium. Botany 2013, New Orleans, LA. July 2013. Abstract

McCauley, R. A. and J. C. Havran. Biogeographic origins and the evolution of woodiness in the endemic Hawaiian genus Nototrichium (Amaranthaceae: Amaranthoideae). Evolution 2013: Society for the Study of Evolution, Snowbird, UT. June 2013.

McCauley, R. A., A. C. Cortés-Palomec, and K. Oyama. Genetic Structure and Speciation in a Lineage of Mexican Red Oaks: A Phylogeographic Study of Quercus Section Lobatae Subsection Racemiflorae. XVIII International Botanical Congress, Melbourne, Australia, July 2011. Poster

McCauley, R. A., B. J. Christie, E. L. Ireland, R. A. Landers, H. R. Nichols and M. T. Schendel. Influence of relictual species on the morphology of a hybridizing oak complex: an analysis of the Quercus x undulata complex in the Four Corners Region. Evolution 2011: Society for the Study of Evolution/American Society of Naturalists/Society of Systematic Biologists, Norman, OK. June 2011. Poster

McCauley, R. A., A. C. Cortés-Palomec, and K. Oyama. A range-wide population genetic study of Guaiacum coulteri (Zygophyllaceae), a threatened tree endemic to the Pacific coast of Mexico. Botanical Society of America/American Society of Plant Taxonomists, Snowbird, UT. July 2009. Abstract

McCauley, R. A., A. C. Cortés-Palomec, and K. Oyama. Distribution, genetic diversity, and conservation of a rare microendemic hardwood species, Guaiacum unijugum(Zygophyllaceae) in the Cape Region of Baja California, Mexico. Botanical Society of America/Canadian Botanical Association, Vancouver, BC. July 2008. Abstract

McCauley, R. A., A. C. Cortés-Palomec, and K. Oyama. Understanding genetic patterns in disjunct species of Mexican Quercus: a case study of Section Lobatae Subsection Racemiflorae. Invited speaker for symposium “Tropical Oaks: Diversity, Ecology and Conservation”. The Association of Tropical Biology and Conservation (ATBC), Morelia, Michoacán. July 2007.

McCauley, R. A., A. C. Cortés-Palomec, and K. Oyama. Phylogeography and historical gene flow patterns in disjunct Quercus across the Sierra Madre Occidental and southern Cordillera of Mexico. Botanical Society of America/American Society of Plant Biologists, Chicago, IL. July 2007. Abstract

McCauley, R. A. The story of a hoboing plant – tracking range expansion of Froelichia gracilis (Amaranthaceae) using historical herbarium records and geographic information systems. Botanical Society of America/American Society of Plant Taxonomists, Snowbird, UT. August 2004. Abstract

McCauley, R. A. Toward a preliminary phylogeny of the American Gomphrenoideae (Amaranthaceae): Morphology and ITS2 sequences. Botanical Society of America/American Society of Plant Taxonomists, Madison, WI. August 2002.

McCauley, R. A. Phylogenetic relations and new combinations in the North American species of Froelichia (Amaranthaceae). Botanical Society of America/American Society of Plant Taxonomists, Madison, WI. August 2002.

McCauley, R. A. and H. E. Ballard, Jr. Systematics, biogeography, and evolutionary trends in the North American species of Froelichia (Amaranthaceae). Botanical Society of America/American Society of Plant Taxonomists, Portland, OR. August 2000.