Samuel James is an American scientist, a researcher specializing in evolutionary biology, focusing on earthworm taxonomy. James, with fellow researchers, has discovered numerous new species of annelids, including Diplocardia californiana, Diplocardia woodi, Diplocardia montana, and a new species related to the Giant Palouse earthworm.
Since January 2011, James has been working on phylogenomic investigation of the evolutionary history of Annelida, as part of the WormNet II: Assembling the Tree of Life for Annelida project, along with researchers Christer Erseus and Bronwyn W. Williams. He is currently part of the University of Iowa's Department of Biology, where he is an Associate Adjunct Professor. Prior to the University of Iowa, James was a Research Associate at the University of Kansas, Biodiversity Institute, from 2003 until 2009.
James, S.W. 1982. Effects of fire and soil type on earthworm populations in a tallgrass prairie. Pedobiologia 24:37-40.
Boucher, D., S.W. James and K.E. Keeler. 1982. The ecology of mutualism. Annual Review of Ecology and Systematics 13:315-347.
James S.W. (1985). "An unexpected effect of autumn burning on tallgrass prairie". American Midland Naturalist. 114: 400–403. doi:10.2307/2425615.
James S.W., Seastedt T.R. (1986). "Nitrogen mineralization by native and introduced earthworms: effects on big bluestem growth". Ecology. 67: 1094–1097. doi:10.2307/1939833.
Seastedt T.R., Todd T.C., James S.W. (1987). "Experimental manipulations of the arthropod, nematode and earthworm communities in a North American tallgrass prairie". Pedobiologia. 30: 9–17. CS1 maint: Multiple names: authors list (link)
James S.W. (1988). "Diplocardia hulberti and D. rugosa, new earthworms (Annelida: Oligochaeta: Megascolecidae) from Kansas". Proceedings of the Biological Society of Washington. 101: 300–307.
James S.W. (1988). "The postfire environment and earthworm populations in tallgrass prairie". Ecology. 69: 476–483. doi:10.2307/1940446.
Seastedt, T.R., S.W. James and T.C. Todd. 1989 Interactions among soil invertebrates, microbes and plant growth in the tallgrass prairie. Agriculture, Ecosystems and Environment 24:219-228.
James S.W., Cunningham M.R. (1989). "Feeding ecology of some earthworms in Kansas tallgrass prairie". American Midland Naturalist. 121: 78–83. doi:10.2307/2425658.
James S.W. (1990). "Diplocardia kansensis, a new earthworm from Kansas, with redescriptions of Diplocardia rip aria Smith and D. fuscula Gates (Annelida: Oligochaeta: Megascolecidae)". Proceedings of the Biological Society of Washington. 103: 179–186.
James S.W. (1990). "Diplotrema murchiei and D. papillata, new earthworms (Oligochaeta: Megascolecidae) from Mexico". Acta Zoologica Mexicana. 38: 18–27.
James S.W. (1990). "Martiodrilus olivaceous and M. panamensis, new earthworms from Colombia and Panama. (Oligochaeta: Glossoscolecidae)". Zoologica Scripta. 19: 305–308. doi:10.1111/j.1463-6409.1990.tb00260.x.
James, S.W. 1990. Oligochaeta: Megascolecidae and other earthworms from southern and midwestern North America. In D. Dindal (ed.) Soil Biology Guide. pp. 379–386. John Wiley and Sons, New York.
James S.W. (1991). "Soil, organic matter, nitrogen, and phosphorus processing by native and introduced earthworm species in tallgrass prairie". Ecology. 72: 2101–2109. doi:10.2307/1941562.
James S.W. (1991). "New species of earthworms from Puerto Rico, with a redefinition of the earthworm genus Trigaster. (Annelida: Oligochaeta: Megascolecidae)". Transactions of the American Microscopical Society. 110: 337–353. doi:10.2307/3226771.
James S.W. (1992). "Experimental and seasonal variation in population structure of earthworms in tallgrass prairie". Soil Biology and Biochemistry. 24: 1445–1449. doi:10.1016/0038-0717(92)90131-g.
James S.W. (1992). "Localized dynamics of earthworm populations in relation to bison dung in North American tallgrass prairie". Soil Biology and Biochemistry. 24: 1471–1476. doi:10.1016/0038-0717(92)90135-k.
Todd T.C., James S.W., Seastedt T.R. (1992). "Soil invertebrate and plant responses to mowing and carbofuran application in a North American tallgrass prairie". Plant and Soil. 144: 117–124. doi:10.1007/bf00018852. CS1 maint: Multiple names: authors list (link)
Wood, H.B. and S.W. James. 1993. Native and introduced earthworms from selected chaparral, woodland, and riparian zones in southern California. Gen.Tech. Rep. PSW-GTR-142. Albany, CA: Pacific Southwest Research Station, Forest Service, USDA; 20 p.
James S.W. (1994). "New acanthodriline earthworms from southern Mexico (Oligochaeta: Megascolecidae)". Acta Zoologica Mexicana. 60: 1–21.
James S.W. (1994). "New species of Diplocardia and Argilophilus (Annelida: Oligochaeta: Megascolecidae) from southern California". Proceedings of the Biological Society of Washington. 107: 622–633.
Hendrix P.F., Callaham Jr M.A., James S.W. (1994). "Ecology of nearctic earthworms in the southern USA. I. Characteristics of Diplocardia longa (Oligochaeta: Megascolecidae) surface casts in grass, hardwood and pine microhabitats on the lower piedmont of Georgia". Megadrilogica. 5: 45–51. CS1 maint: Multiple names: authors list (link)
Fragoso, C., S.W. James and S. Borges. 1995. Native earthworms of the north Neotropical region: current status and controversies. in P. Hendrix (ed.). Earthworm Ecology and Biogeography in North America, pp. 67–115. CRC Press, Inc, Boca Raton, Florida.
James, S.W. 1995. Systematics, biogeography and ecology of earthworms from eastern, central, southern and southwestern USA. in P. Hendrix (ed.) Earthworm Ecology and Biogeography in North America, pp. 29–51. CRC Press, Inc, Boca Raton, Florida.
James, S.W. 1996. Nine new species of Dichogaster from Guadeloupe, French West Indies (Oligochaeta, Megascolecidae) Zoologica Scripta 25:21-24.
James, S.W. 1996. Earthworms. In G. Hall (ed.) Methods for the examination of organismal diversity in soils and sediments. IUBS Methodology Series. CAB International, Wallingford, Oxon, UK.
Goodman, S.M., P. Parillo, S.W. James and P. Sierwald. 1996. Elevational variation in soil macroinvertebrates on the eastern slopes of the Reserve Naturelle Integrale d'Andingitra, Madagascar. Fieldiana (Zoology) NS. 85:144-151
Wood H.B, Olivier K.L., James S.W. (1997). "Relict Megascolecidae and exclusion of Lumbricidae from basalt-derived soils in Southern California". Soil Biology and Biochemistry. 29: 241–244. doi:10.1016/s0038-0717(96)00089-2. CS1 maint: Multiple names: authors list (link)
James, S.W. 1998. Earthworms and earth history. pp. 3–14 in: C.A. Edwards, ed. Earthworm Ecology. Proc 5th International Symposium on Earthworm Ecology. St. Lucie Press, Boca Raton.
Hendrix P.F, Callaham Jr M.A., Lachnicht S.L., Blair J.M., James S.W., Zou X. (1999). "Stable isotopic studies of resource utilization by nearctic earthworms (Diplocardia, Oligochaeta) in subtropical savanna and forest ecosystems". Pedobiologia. 43: 818–823. CS1 maint: Multiple names: authors list (link)
James, S.W. 2000. Earthworms of the eastern Columbia River Basin. USDA- Forest Service General Technical Report, Pacific NW Region.
Joshi R.C., Matchoc O.R., Cabigat J.C., James S.W. (2000). "Survey of the earthworms in the Ifugao rice terraces, Philippines". Journal of Environmental Science and Management. 2 (2): 1–12. CS1 maint: Multiple names: authors list (link)
Hong Y., James S. W. (2001). "Five new earthworms of the genus Amynthas Kinberg (Megascolecidae) with four pairs of spermathecae". Zoological Studies. 40 (4): 269–275.
Hong Y., James S. W. (2001). "New species of Korean Amynthas Kinberg 1867 (Oligochaeta, Megascolecidae) with two pairs of spermathecae". Revue Suisse de Zoologie. 108 (1): 65–93. doi:10.5962/bhl.part.79621.
Jamieson B.G.M., Tillier S., Tillier A., Justine J-L., Ling E., James S., McDonald K., Hugall A.F. (2002). "Phylogeny of the Megascolecidae (Oligochaeta, Annelida): combined versus partitioned analysis using nuclear (28s) and mitochondrial (12s, 16s) rDNA". Zoosystema. 24 (4): 707–734. CS1 maint: Multiple names: authors list (link)
James S.W. (2004). "An illustrated key to the earthworms of the Samoan Archipelago". Micronesica. 37: 1–13.
James, S.W. 2004. Earthworms from the eastern mountains of Jamaica: fourteen new species of Dichogaster (Oligochaeta: Megascolecidae). (in press, Organisms, Diversity and Evolution)
James, S.W. 2004. New species of Amynthas, Pheretima, and Pleionogaster (Clitellata: Megascolecidae) of the Mt. Kitanglad Range, Mindanao Island, Philippines. (in press, Raffles Bulletin of Zoology).
James S.W. 2004. The earthworm genus Pleionogaster in southern Luzon, Philippines. (in prep).
James, S.W., Y. Hong and T.H. Kim. 2004. New species of Pheretima and Pithemera (Oligochaeta: Megascolecidae) from Mt. Arayat, Luzon Island, Philippines. (in press, Revue Suisse de Zoologie)
Hong, Y. and S.W. James 2004. New species of Amynthas Kinberg, 1867 from the Philippines (Oligochaeta: Megascolecidae). (in press, Revue Suisse de Zoologie)
James, S.W. 2004. New genera and new species of earthworms (Clitellata: Megascolecidae) from southern Luzon, Philippines. (in press, Systematics and Biodiversity)
James, S.W. 2004. New species of Archipheretima (Clitellata: Megascolecidae) from Luzon, Philippines, with a revision of the genus. (in prep.)
James, S.W., H.-T. Shih and H.-W. Chang. 2004. Seven new species of Amynthas (Clitellata: Megascolecidae) and new earthworm records from Taiwan. Journal of Natural History. (in press).
James, S.W. 2004. Planetary processes and their interactions with earthworm and distributions and ecology. in: C.A. Edwards, ed. Earthworm Ecology. 2nd edition. St. Lucie Press, Boca Raton. (in press)
James, S.W. and P.W. Hendrix. 2004. Invasion of Exotic Earthworms into North America. in: C.A. Edwards, ed. Earthworm Ecology. 2nd edition. St. Lucie Press, Boca Raton. (in press)
Samuel James, Hsi-Te Shih, Hsueh-Wen Chang. 2005. Seven new species of Amynthas Clitellata: Megascolecidae and new earthworm records from Taiwan Journal of Natural History, Vol. 39, No. 14., 1007, doi:10.1080/00222930400001434
James, S. W. and G. G. Brown. 2006. Earthworm ecology and diversity in Brazil. p. 56–116. In: Moreira, F. M. S., J. O. Siqueira, and L. Brussaard. (eds.). Soil biodiversity in Amazonian and other Brazilian ecosystems. CAB International, Wallingford.
Lang, S. A., Garcia, M. V., James, S. W., Sayers, C. W., & Shain, D. H. (2012). Phylogeny and clitellar morphology of the giant Amazonian Earthworm, Rhinodrilus priollii (Oligochaeta: Glossoscolecidae). The American Midland Naturalist, 167(2), 384-395.
