The Researchers
Michael H. MacRoberts and Barbara R. MacRoberts
Bog Research Herbarium, Museum of Life Sciences
740 Columbia Louisiana State University in Shreveport
Shreveport, LA 71104 Shreveport, LA 71115
Biography
Michael and Barbara earned undergraduate degrees (1963) in Anthropology at the University of Arizona and began graduate school in at the London School of Economics and the University of London, where they became interested in primate behavior. In 1963-1964 they studied the social behavior of Barbary macques in Gibraltar. More graduate study followed at UC-Berkeley, from where they graduated in 1968 with degrees (Ph.D. and M.A., respectively) in Physical Anthropology, but with a continuing and still developing interest in ethology (animal behavior) they soon were studying the social behavior of Acorn Woodpeckers in central California. In post-doctoral study in ethology with Niko Tinbergen at Oxford during the early 1970s, they studied gulls and flocking and feeding in Great Tits. They returned to California in mid 1970s for further study of the ecology and behavior of Acorn Woodpeckers, under the auspices of the Museum of Vertebrate Zoology.
After a move to Shreveport, Louisiana, they became interested in the philosophy of science and citation analysis, but since the mid 1980s, after stumbling upon a pitcher plant bog in the Kisatchie National Forest in central Louisiana, it has been all botany -- notably community descriptions, rare species inventories, floristic surveys, and phytogeography. Currently they curate the herbarium at Louisiana State University in Shreveport and are associated with the Museum of Life Sciences, Red River Watershed Management Institute, and Biology Department at Louisiana State University in Shreveport. They are sole proprietors of Bog Research and have had contracts with TNC, Natural Heritage Programs, National Park Service, Texas Parks and Wildlife, and National Forests in Texas and Louisiana. They are working on the floristics of Morse Clay Prairies, Saline Prairies, and the Big Thicket National Preserve and various aspects of West Gulf Coastal Plain phytogeography. They currently are conducting an inventory of Geocarpon minimum in Louisiana.
Botanical Publications (February 2008)
MacRoberts, B.R. and M.H. MacRoberts. In press. Plant ecology and phytogeography of the West Gulf Coastal Plain: an overview. In L.M. Hardy (ed.) Freeman and Custis Red River Expedition of 1806: two hundred years later. Bull. Museum of Life Sciences 14.
MacRoberts, M.H. and B.R. MacRoberts. In press. West Gulf Coastal Plain botanical ecology: ice age to present. In L.M. Hardy (ed.) Freeman and Custis Red River Expedition of 1806: two hundred years later. Bull. Museum of Life Sciences 14.
Reid, C.S., P.L. Faulkner, B.R. MacRoberts, and M.H. MacRoberts. In press. Noteworthy vascular plant collections from northwest Louisiana. J. Bot. Res. Inst. Texas
MacRoberts, M.H. and B.R. MacRoberts. In press. Early historical references to the Big Thicket, Texas. J. Bot. Res. Inst. Texas
MacRoberts, M.H. and B.R. MacRoberts. In press. The Big Thicket of Texas as floristically unique habitat. J. Bot. Res. Inst. Texas
Thomas, R.D., L.R. Raymond, B.R. MacRoberts, and M.H.MacRoberts. In press. Documented and annotated checklist of the vascular flora of the Walter B. Jacobs Memorial Nature Park, Caddo Parish, Louisiana. Proc. Louisiana Acad. Sci.
Reid, C.S., P.L. Faulkner, B.R. MacRoberts, and M.H. MacRoberts. 2007. Saxifraga texana (Saxifragaceae) new to Louisiana. J. Bot. Res. Inst. Texas 1:1251-1252.
MacRoberts, M.H. and B.R. MacRoberts. 2007. Eryngium heterophyllum (Apiaceae) and Eriocaulon lineare (Eriocaulaceae) deleted from the Louisiana flora. Phytologia 89:284-286.
MacRoberts, M.H. and B.R. MacRoberts. 2007. Phytogeography of the Big Thicket, east Texas. J. Bot. Res. Inst. Texas 1:1149-1155.
MacRoberts, M.H., B.R. MacRoberts, and R.G. Kalinsky. 2007. Vascular plant species/area relationships (species richness) in the West Gulf Coastal Plain: a first approximation. J. Bot. Res. Inst. Texas 1:577-583.
Reid, C.S., P.L. Faulkner, B.R. MacRoberts, and M.H. MacRoberts. 2007. Talinum rugospermum (Portulacaceae) new to Oklahoma. J. Bot. Res. Inst. Texas 1:777-778.
MacRoberts, M.H., B.R. MacRoberts, C.S. Reid, P.L. Faulkner, and D. Estes. 2007. Minuartia drummondii (Caryophyllaceae) and Gratiola flava (Plantaginaceae) rediscovered in Louisiana and Gratiola flava historically in Arkansas. J. Bot. Res. Inst. Texas 1:763-767.
Philipps, T.C., S.B. Walker, B.R. MacRoberts, and M.H. MacRoberts. 2007. Vascular flora of a longleaf pine upland in Sabine County, Texas. Phytologia 89:317-338.
MacRoberts, M.H. and B.R. MacRoberts. 2007. Survey of Geocarpon minimum in northwest Louisiana. Unpublished report. Louisiana Natural Heritage Program, Baton Rouge.
MacRoberts, M.H. and B.R. MacRoberts. 2006. Xeric sandylands (western xeric sandhill woodlands) of the West Gulf Coastal Plain: a review. Unpublished report. Louisiana Natural Heritage Program, Baton Rouge.
Brown, L.E., B.R. MacRoberts, M.H. MacRoberts, P.A. Harcombe, W.W. Pruess, I.S. Elsik, and S.D. Jones. 2006. Annotated checklist of the vascular flora of the Lance Rosier Unit of the Big Thicket National Preserve, Hardin County, Texas. Sida 22:1175-1189.
MacRoberts, B.R. and M.H. MacRoberts. 2006. Carex stipata (Cyperaceae), Chamaesyce gereyi (Euphorbiaceae), Eurytaenia texana (Apiaceae), Pediomelum exculentum (Fabaceae), and Talinum calycinum (Portulaceae) deleted from the Louisiana flora. Sida 22:1221-1223.
MacRoberts, B.R. and M.H. MacRoberts. 2006 . An updated, annotated vascular flora of Caddo Parish, Louisiana, with notes on regional phytogeography and ecology. Sida 22:1191-1219.
Brown, L.E., B.R. MacRoberts, M.H. MacRoberts, P.A. Harcombe, W.W. Pruess, I.S. Elsik, and S.D. Jones. 2006. Annotated checklist of the vascular flora of the Big Sandy Creek Unit, Big Thicket National Preserve, Texas. Sida 22:705-723.
MacRoberts, M.H. and B.R. MacRoberts. 2006. The north-south transition of flora across Arkansas: a preliminary phytogeographical analysis. Sida 22:725-734.
MacRoberts, M.H. and B.R. MacRoberts. 2006. Biogeographical observations on Louisiana and Texas rare and endemic plants. Phytologia 88:101-107.
MacRoberts, M.H. and B.R. MacRoberts. 2005. Status and management of Eriocaulon koernickianum (Eriocaulaceae) in Texas. Phytologia 87:179-203.
MacRoberts, B.R. and M.H. MacRoberts. 2005. Agrimonia gryposepala (Rosaceae) deleted from the Louisiana flora. Phytologia 87:129-131.
MacRoberts, B.R., M.H. MacRoberts, and T.D. Marsico. 2005. Preliminary survey of the vascular flora of the Ouachita Mountains Biological Station, Polk County, Arkansas. Bull. Museum of Life Sciences 13:1-20.
MacRoberts, B.R. and M.H. MacRoberts. 2005. The ecology of Trillium texanum (Trilliaceae) on the Angelina National Forest, Texas. Sida 21:1893-1903.
Brown, L.E., B.R. MacRoberts, M.H. MacRoberts, P. Harcombe, W.W. Pruess, S. Elsik, and D. Johnson. 2005. Annotated checklist of the vascular flora of the Turkey Creek Unit of the Big Thicket National Preserve, Tyler and Hardin counties, Texas. Sida 21:1807-1827.
MacRoberts, M.H. and B.R. MacRoberts. 2005. Reference conditions of the Red River floodplain and upland, Caddo Parish, Louisiana. Sida 21:1793-1806.
Zollner, D., M.H. MacRoberts, B.R. MacRoberts, and D. Ladd. 2005. Endemic vascular plants of the Interior Highlands. Sida 21:1781-1791.
Mize, R., R.E. Evans, B.R. MacRoberts, M.H. MacRoberts, and D.C. Rudolph. 2005. Restoration of pitcher plant bogs in eastern Texas. Natural Areas Journal 25:197-201.
MacRoberts, M.H., B.R. MacRoberts, and L.S. Jackson. 2004. Floristics of upland longleaf pine savanna in central Louisiana. Proc. of the Louisiana Acad. Sci. 65:1-13.
MacRoberts, M.H. and B.R. MacRoberts. 2004. West Gulf Coastal Plain prairies: a first approximation at a synthesis. Pp. 5-21. In J. Randall and J.C. Burns (eds.). Proceedings of the Third Eastern Native Grass Symposium. The North Carolina Botanical Garden, Chapel Hill. Ominipress, Madison, Wisconsin.
MacRoberts, M.H. and B.R. MacRoberts. 2004. Sarracenia purpurea (Sarracenaceae) in Louisiana. Sida 21:1149-1152.
MacRoberts, M.H. and B.R. MacRoberts. 2004. About 450 miles up the Red River in a large prairie: Peter Custis’ surviving botanical information from the Red River expedition of 1806. Sida 21:963-975.
MacRoberts, M.H. and B.R. MacRoberts. 2004. The post oak savanna ecoregion: a floristic assessment of its uniqueness. Sida 21:399-407.
MacRoberts, M.H., B.R. MacRoberts, and L.S. Jackson. 2004. Observations on Parnassia grandifolia DC. (Saxifragaceae) in the West Gulf Coastal Plain. Phytologia 86:98-103.
MacRoberts, M.H., S.B.Walker, and B.R. MacRoberts. 2004. The status of Carex tenax Chapman (Cyperaceae) in the West Gulf Coastal Plain. Phytologia 86:23-28.
MacRoberts, B.R., M.H. MacRoberts, and L.S. Jackson. 2004. Floristics of bayglls in central Louisiana. Phytologia 86:1-22.
MacRoberts, M.H. and B.R. MacRoberts. 2004. The Big Thicket: typical or atypical? East Texas Historical Journal 42:42-51.
MacRoberts, M.H. and B.R. MacRoberts. 2003. The east-west transition of flora in Texas: a biogeographical analysis. Sida 20:1693-1700.
Sorrie, B, M.H. MacRoberts, B.R. MacRoberts, and S.B. Walker. 2003. Oxypolis ternata (Apiaceae) deleted from the Texas flora. Sida 20:1321-1322.
MacRoberts, M.H. and B.R. MacRoberts. 2003. West Gulf Coastal Plain ecoregions. Sida 20:1245-1274.
MacRoberts, M.H., B.R. MacRoberts, and L.S. Jackson. 2003. Louisiana prairies. In E. Peacock and T. Schauwecker (eds.), Blackland Prairies of the Gulf Coastal Plain: Nature, Culture and Sustainability. Univ. Alabama Press. Pp. 80-93.
Evans, R.E., B.R. MacRoberts, M.H. MacRoberts, and T.C. Gibson. 2002. Mass capture of insects in pitcher plants (Sarracenia alata Wood). Texas J. Sci. 54:339-346.
MacRoberts, B.R., M.H. MacRoberts, and L.E. Brown. 2002. Annotated checklist of the vascular flora of the Hickory Creek Unit of the Big Thicket National Preserve, Tyler County, Texas. Sida 20:781-795.
MacRoberts, M.H., B.R. MacRoberts, B. Sorrie, and R. Evans. 2002. Endemism in the West Gulf Coastal Plain: importance of xeric habitats. Sida 20:767-779.
Brown, L.E., B.R. MacRoberts, M.H. MacRoberts, and K. Hillhouse. 2002. The floristics of Windham Prairie, Polk County, Texas. Texas J. Sci.54:227-240.
MacRoberts, B.R., M.H. MacRoberts, and J.C. Cathey. 2002. Floristics of xeric sandylands in the post oak savanna region of east Texas. Sida 20:373-386.
MacRoberts, B.R., M.H. MacRoberts, and L.S. Jackson. 2002. Floristics and management of pitcher plant bogs in northern Natchitoches and Winn Parishes, Louisiana. Proc. of the Louisiana Acad. Sci. 64:14-21.
MacRoberts, M.H. and B.R. MacRoberts. 2002. Status report on Eriocaulon koernickianum (Dwarf Pipewort) in Texas. Texas Parks and Wildlife Department, Austin, Texas.
MacRoberts, M.H. and B.R. MacRoberts. 2001. Bog communities of the West Gulf Coastal Plain: A profile. Bog Research Papers in Botany & Ecology 1:1-151.
MacRoberts, M.H. and B.R. MacRoberts. 2000. Maintaining the natural integrity of pine savannas on the Big Thicket National Preserve, Texas. Big Thicket National Preserve, Beaumont, Texas.
MacRoberts, M.H. and B.R. MacRoberts. 1999. Status report on Eriocaulon kornickianum (Dwarf Pipewort) in Texas. U.S. Fish and Wildlife Service, Jackson, Mississippi.
MacRoberts, B.R. and M.H. MacRoberts. 1998. Floristics of muck bogs in east central Texas. Phytologia 85:61-73.
MacRoberts, B.R. and M.H. MacRoberts. 1998. Floristics of wetland pine savannas in the Big Thicket National Preserve, southeast Texas. Phytologia 85:40-50.
MacRoberts, M.H. and B.R. MacRoberts. 1998. Community classification of West Gulf Coastal Plain bog communities: a floristic assessment. Phytologia 85:32-39.
MacRoberts, M.H. and B.R. MacRoberts. 1998. Wetland status of hillside bogs, wetland pine savannas, and muck bogs in the West Gulf Coastal Plain. Phytologia 85: 22-31.
MacRoberts, M.H. and B.R. MacRoberts. 1998. Quality change of habitat in northwestern Louisiana. Phytologia 84:297-303.
MacRoberts, M.H. and B.R. MacRoberts. 1998. A note on Platanthera lacera (Michx.) G. Don (Orchidaceae) in Louisiana. Phytologia 84:38-39
MacRoberts, M.H. and B.R. MacRoberts. 1998. Noteworthy vascular plant collections on the Angelina and Sabine National Forests, Texas. Phytologia 84:1-27.
Nesom, G.L., B.R. MacRoberts, and M.H. MacRoberts. 1997. A new plant community type in southeast Texas related to baygalls. Phytologia 83:371-383.
MacRoberts, B.R., M.H. MacRoberts, and R.E. Evans. 1997. Notes on Spiranthes parksii Correll (Orchidaceae) in deep east Texas. Phytologia 83:133-137.
MacRoberts, M.H., B.R. MacRoberts, and L.M. Stacey. 1997. Historical notes on Louisiana prairies: size changes in a century and a half. Phytologia 83:102-108.
MacRoberts, B.R., M.H. MacRoberts, L.M. Stacey and D.C. Moore. 1997. The status of Parnassia (Saxifragaceae) in the West Gulf Coastal Plain. Phytologia 83:53-57.
MacRoberts, M.H., B.R. MacRoberts, and D.C. Moore. 1997. Introduction and notes to Clair Brown’s “Preliminary report on the isolated prairies of Louisiana.” Proceedings of the Louisiana Academy of Sciences 60:1-9.
MacRoberts, M.H. and B.R. MacRoberts. 1997. Former distribution of prairies in northern Louisiana. Phytologia 82:315-325.
MacRobert, B.R. and M.H. MacRoberts. 1997. The ecology of Agrimonia incisa Torrey & A. Gray (Rosaceae) in the West Gulf Coastal Plain. Phytologia 82:114-128.
MacRoberts, B.R. and M.H. MacRoberts. 1997. Talinum rugospermum Holz., new to Louisiana with notes on terete-leaved Talinum in Louisiana. Phytologia 82:86-93.
MacRoberts, B.R. and M.H. MacRoberts. 1997. Historical notes on Louisiana prairies: changes in prairie flora in half a century. Phytologia 82:65-72.
MacRoberts, B.R. and M.H. MacRoberts. 1997. Floristics of beech-hardwood forest in east Texas. Phytologia 82:20-29.
MacRoberts, D.T., B.R. MacRoberts, and M.H. McRoberts. 1997. A floristic and ecological interpretation of the Freeman and Custis Red River Expedition of 1806. Bulletin of the Museum of Life Sciences 12:1-26.
MacRoberts, B.R. and M.H. MacRoberts. 1996. The floristics of calcareous prairies on the Kisatchie National Forest, Louisiana. Phytologia 81:35-43.
MacRoberts, M.H. and B.R. MacRoberts. 1996. Longleaf pine (Pinus palustris Mill.) growth in bogs. Phytologia 81:28-34.
MacRoberts, B.R. and M.H. MacRoberts. 1996. Floristics of xeric sandhills in east Texas. Phytologia 80:1-7.
MacRoberts, B.R. and M.H. MacRoberts. 1995. Vascular flora of xeric sandhills in northwestern Louisiana. Phytologia 79:123-131.
Hunt, D.M., M.H. MacRoberts, and B.R. MacRoberts. 1995. The status of Quercus arkansana (Fagaceae) in Texas. Phytologia 79:22-24.
MacRoberts, B.R. and M.H. MacRoberts. 1995. Palhinhaea cernua (Lycopodiaceae) new to Texas. Phytologia 78:402-403.
MacRoberts, M.H. and B.R. MacRoberts. 1995. Noteworthy vascular plant collections on the Kisatchie National Forest, Louisiana. Phytologia 78:291-313.
MacRoberts, B.R. and M.H. MacRoberts. 1995. Vascular flora of two calcareous prairie remnants on the Kisatchie National Forest, Louisiana. Phytologia 78:18-27.
MacRoberts, M.H. and B.R. MacRoberts. 1994. Floristics of a xeric sandyland in western Louisiana. Phytologia 77:414-424.
MacRoberts, M.H. and B.R. MacRoberts. 1993. Vascular flora of sandstone outcrop communities in western Louisiana, with notes of rare and noteworthy species. Phytologia 75:463-480.
MacRoberts, B.R. and M.H. MacRoberts. 1993. Floristics of a bog in Vernon Parish, Louisiana, with comments on noteworthy bog plants in western Louisiana. Phytologia 75:247-258.
MacRoberts, B.R. and M.H. MacRoberts. 1993. Floristics of two Louisiana sandstone glades. Phytologia 74:431-437.
MacRoberts, M.H. and B.R. MacRoberts. 1993. Why don’t west Louisiana bogs and glades grow up into forests? Phytologia 74:26-34.
MacRoberts, M.H. and B.R. MacRoberts. 1992. Observations on toothache grass [Ctenium aromaticum (Poaceae: Chlorideae)] with particular reference to fire. Phytologia 73:439-444.
MacRoberts, B.R. and M.H. MacRoberts. 1992. Floristics of four small bogs in western Louisiana with observations on species-area relationships. Phytologia 73:49-56.
MacRoberts, M.H. and B.R. MacRoberts. 1992. Floristics of a sandstone glade in western Louisiana. Phytologia 72:130-138.
MacRoberts, B.R. and M.H. MacRoberts. 1991. Floristics of three bogs in western Louisiana. Phytologia 70:135-141.
MacRoberts, M.H. and B.R. MacRoberts. 1991. The distribution of Sarracenia in Louisiana, with data on its abundance in the western part of the state. Phytoloigia 70:119-125.
MacRoberts, M.H. and B.R. MacRoberts. 1990. Size distribution and density of trees in bogs and pine woods in west central Louisiana. Phytologia 68:428-434.
MacRoberts, B.R. and M.H. MacRoberts. 1990. The distribution of Bartonia (Gentianaceae) in Louisiana. Phytologia 69:393-397.
MacRoberts, B.R. and M.H. MacRobers. 1990. Vascular flora of two west Louisiana pitcher plant bogs. Phytologia 68:271-275.
MacRoberts, B.R. 1989. Louisiana Lachnocaulon (Eriocaulaceae). Phytologia 67:335-336.
MacRoberts, M.H. and B.R. MacRoberts. 1988. A note on Sarracenia purpurea in Louisiana. Phytologia 65:191-194.
MacRoberts, B.R. and M.H. MacRoberts. 1988. Floristic composition of two west Louisiana pitcher plant bogs. Phytologia 65:184-190.
