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5. Ulanowicz, R.E. 1972. Mass and energy flow in closed ecosystems. Journal of Theoretical Biology 34:239-253.

20. Ulanowicz, R.E. 1979. Complexity, stability and self-organization in natural communities. Oecologia (Berlin) 43:295-298.

22. Ulanowicz, R.E. and W.M. Kemp. 1979. Toward canonical trophic aggregations. The American Naturalist 114:871-883.

23. Heinle, D.R., D.A Flemer, R.T. Huff, S.T. Sulkin, and R.E. Ulanowicz. 1979. Effects of perturbations on estuarine microcosms. pp. 119-141. In: F. John Vernberg, (ed.). Marsh-Estuarine Systems Simulation.University of South Carolina Press, Columbia, SC.

24. Ulanowicz, R.E. 1980. An hypothesis on the development of natural communities. Journal of Theoretical Biology 85:223-245.

27. Ulanowicz, R.E. 1981. An hypothesis on the development of natural communities. pp. 111-133. In: R.K. Ragade (ed.). General Systems Vol. XXVI. Society for General Systems Research, Louisville, KY.

31. Ulanowicz, R.E. and K.H. Mann. 1981. Ecosystems under stress. pp. 133-137. In: K.H. Mann, T.C. Platt and R.E. Ulanowicz (eds.). Mathematical Models in Biological Oceanography. UNESCO Monographs on Oceanographic Methodology 7. UNESCO Press, Paris.

32. Ulanowicz, R.E. 1981. A unified theory of self-organization. pp. 649-652. In: W.J. Mitsch, R.W. Bosserman and J.M. Klopatek (eds.). Energy and Ecological Modeling Elsevier, NY.

36. Ulanowicz, R.E. 1983. Identifying the structure of cycling in ecosystems. Mathematical Biosciences 65:219-237.

37. Ulanowicz, R.E. 1984. Community measures of marine food networks and their possible applications. pp. 23-47. In: M.J.R. Fasham (ed.). Flows of Energy and Materials in Marine Ecosystems. Plenum, London.

39. Ulanowicz, R.E. 1984. The structure of cycling in the Ythan estuary. pp. 220-235. In: S.A. Levin and T.G. Hallam (eds.). Lecture Notes in Biomathematics: Mathematical Ecology Springer-Verlag, Berlin.

41. Ulanowicz, R.E. and T.C. Platt (eds.). 1985. Ecosystems Theory for Biological Oceanography. Canadian Bulletin of Fisheries and Aquatic Science Number 213. 260 p.

43. Ulanowicz, R.E. 1986. Growth and Development: Ecosystems Phenomenology Springer-Verlag, NY. 203p.

44. Ulanowicz, R.E. 1986. A phenomenological perspective of ecological development. pp. 73-8l. In: T. M. Poston and R. Purdy (eds.). Aquatic Toxicology and Environmental Fate, Vol.9. ASTM STP 921. American Society for Testing and Materials, Philadelphia, PA.

45. Ulanowicz, R.E. 1986. Theoretical ecology: Ecosystem ascendency. pp. 481-483. In: 1987 Yearbook of Science and Technology McGraw-Hill, NY.

46. Hirata, H. and R.E. Ulanowicz. 1986. Large-scale system perspectives on ecological modelling and analysis. Ecological Modelling 31:79-104.

51. Ulanowicz, R.E. 1988. On the importance of higher-level models in ecology. Ecological Modelling 43:45-56.

53. Wicken, J.S. and R.E. Ulanowicz. 1988. On quantifying hierarchical connections in ecology. Journal of Social and Biological Structures 11:369-377.

55. Ulanowicz, R.E. 1989. Energy flow and productivity in the oceans. pp. 327-351. In: P.J. Grubb and J.B. Whittaker (eds.) Toward a More Exact Ecology Blackwell, Oxford.

57. Baird, D. and R.E. Ulanowicz. 1989. The seasonal dynamics of the Chesapeake Bay ecosystem. Ecol. Monogr. 59:329-364.

58. Ulanowicz, R.E. 1989. A phenomenology of evolving networks. Systems Research 6:209-217.

61. Wulff, F. and R.E. Ulanowicz. 1989. A comparative anatomy of the Baltic Sea and Chesapeake Bay ecosystems. pp. 232-256. In: F. Wulff, J.G. Field, and K.H. Mann (eds.) Network Analysis in Marine Ecology Coastal and Estuarine Studies Series. Springer-Verlag, Berlin.

63. Ulanowicz, R. E. 1990. Ecosystem integrity and network theory. pp. 69-77. In: C.J. Edwards and H.A. Regier (eds.) An Ecosystem Approach to the Integrity of the Great Lakes in Turbulent Times Great Lakes Fish Comm. Spec. Pub. 90-4.

65. Ulanowicz, R.E. and C.J. Puccia. 1990. Mixed trophic impacts in ecosystems. Coenoses 5:7-16.

71. Ulanowicz, R.E. and F. Wulff. 1991. Comparing ecosystem process structures: The Chesapeake Bay and the Baltic Sea. pp. 140-166. In: J.J. Cole, G.M. Lovett and S.E.G. Findlay (eds.) Comparative Analyses of Ecosystems: Patterns, Mechanisms and Theories Springer-Verlag, New York.

72. Baird, D., J.M. McGlade and R.E. Ulanowicz. 1991. The comparative ecology of six marine ecosystems. Philosophical Transactions of the Royal Society, London, Series B 333:15-29.

75. Ulanowicz, R.E. 1992. Ecosystem health and trophic flow networks. pp. 190-225. In: R. Costanza, B.G. Norton, and B.D. Haskell (eds.) Ecosystem Health: New Goals for Environmental Management Island Press, Washington, DC.

82. Pahl-Wostl, C. and R.E. Ulanowicz. 1994. Quantification of species as functional units within an ecological network. Ecological Modelling 66:65-79

83. Ulanowicz, R.E. 1995. Ecosystem integrity: A causal necessity. pp. 77-87 In: L. Westra and J. Lemons (eds.) Perspectives on Ecological Integrity Kluwer, Dordrecht.

84. Ulanowicz, R.E. 1995. Ecosystem trophic foundations: Lindeman exonerata. pp. 549-560. In: B.C. Patten and S.E. Jorgensen (eds.) Complex Ecology: The part-whole relation in ecosystems Prentice Hall, Englewood Cliffs, New Jersey

87. Ulanowicz, R.E. 1995. Utricularia’s secret: the advantage of positive feedback in oligotrophic environments. Ecological Modelling 79:49-57.

89. Mageau, M.T., R. Costanza and R.E. Ulanowicz. 1995. The development and initial testing of a quantitative assessment of ecosystem health. Ecosystem Health 1(4):201-213.

95. Ulanowicz, R.E. 1997. Ecology, the Ascendent Perspective Columbia University Press, New York.

98. Bondavalli, C., A. Bodini and R.E. Ulanowicz. 1997. Government organizations and Great Lakes rehabilitation Proceedings of the Eighth National Congress of the Italian Society of Ecology 18:213-215.

102. Gafiychuk, V.V., I.A. Lubashevsky and R.E. Ulanowicz. 1997. Distributed self-regulation in ecological and economic systems. Complex Systems 11:357-372.

103. Ulanowicz, R.E. 1998. Network orientors: Theoretical and philosophical considerations why ecosystems may exhibit a propensity to increase in ascendency. pp. 177-192. In: F. Mueller and M. Leupelt [eds.] Eco Targets, Goal Functions, and Orientors Springer-Verlag, Berlin.

105. Mageau, M.T., R. Costanza, and R.E. Ulanowicz. 1998. Quantifying the trends expected in developing ecosystems. Ecological Modelling 112:1-22.

107. Niquil, N., J.E. Ernesto Arias-Gonzales, B. Delesalle, and R.E. Ulanowicz. 1999. Characterization of the planktonic food web of Takapoto Atoll lagoon, using network analysis. Oecologia 118:232-241.

109. Almunia, J., G. Basterretxea, J. Aristegui, and R.E. Ulanowicz. 1999. Benthic-pelagic switching in a coastal subtropical lagoon. Estuarine, Coastal and Shelf Science 49:363-384.

110. Bondavalli, C. and R.E. Ulanowicz. 1999. Unexpected effects of predators upon their prey: The case of the American Alligator. Ecosystems 2:49-63.

112. Ulanowicz, R.E. 2000. Quantifying constraints upon trophic and migratory transfers in landscapes pp. 113-142. In: Sanderson, J. and L.D. Harris (eds.), Series in Landscape Ecology: A Top-Down Approach Lewis Publications, Boca Raton.

113. Ulanowicz, R.E.. 2000. Ascendency: A measure of ecosystem performance. Pp. 303-315. In: S.E. Joergensen and F. Mueller (Eds.) Handbook of Ecosystem Theories and Management. Lewis Publications, Boca Raton.

114. Ulanowicz, R.E. 2000. Toward the measurement of ecological integrity. Pp. 99-113. In: Pimentel, D., L. Westra and R.F. Noss (Eds.), Ecological Integrity: Integrating Environment, Conservation and Health Island Press, Washington. DC.

121. Frost, T.M., R.E. Ulanowicz, S. Blumenshine, J. Rogers, F. Taub, and T.F.H. Allen. 2001. Scaling issues in experimental ecology: Freshwater ecosystems. Pp. 253-279. In: Gardner, R.H., W.M. Kemp, V.S. Kennedy and J.E. Petersen (Eds.), Scaling Relations in Experimental Ecology.Columbia University Press, NY.

128. Ulanowicz, R.E. 2002. The balance between adaptability and adaptation. BioSystems 64:13-22.

130. Heymans, J.J., R.E. Ulanowicz, and C. Bondavalli. 2002. Network analysis of the South Florida graminoid marshes and comparison with nearby cypress ecosystems. Ecological Modelling 149:5-23.

137. Ulanowicz, R.E. 2003. Some steps toward a central theory of ecosystem dynamics. Computational Biology and Chemistry 27:523-530. Reprinted in Ecological Questions 5:23-32. [2004]

139. Patricio, J., R. Ulanowicz, M.A. Pardal, and J.C. Marques. 2004. Ascendency as an ecological indicator: A case study of estuarine pulse eutrophication. Estuarine, Coastal and Shelf Science 60:23-35.

142. Ulanowicz, R.E. 2004. On the nature of ecodynamics. Ecological Complexity 1:341-354.

145. Belgrano, A., U.M. Scharler, J. Dunne, and R.E. Ulanowicz (Eds.) 2005. Aquatic Food Webs: An Ecosystem Approach Oxford University Press, Oxford. 262p.

150. Ulanowicz, R.E. 2005. The complex nature of ecodynamics. Pp. 303-329 In: D. Bonchev, and D.M. Rouvray, (Eds.) Complexity in Chemistry, Biology, and Ecology Springer-Verlag, New York.

151. Ulanowicz, R.E. 2005. A revolution in the middle kingdom? Pp. 73-90. In: H. Lillienstroem and U. Svedin (Eds.) Micro-Meso-Macro: Addressing Complex Systems Couplings World Scientific, London.

158. Joergensen, S.E, B.D. Fath, S. Bastianoni, J.C. Marques, F. Mueller, S.N. Nielsen, B.C. Patten, E. Tiezzi and R.E. Ulanowicz. 2007. A New Ecology: Systems Perspective Elsevier, Amsterdam. 275p.

173. Ulanowicz, R.E. 2009. The dual nature of ecosystem dynamics. Ecological Modelling 220:1886-1892.

184. Ulanowicz, R.E. 2011. Quantitative Methods for Ecological Network Analysis and Its Application to Coastal Ecosystems. Pp. 35 – 57 In: Wolanski E. and McLusky D.S. (Eds.) Treatise on Estuarine and Coastal Science Vol 9. Waltham: Academic Press.

192. Ulanowicz, R.E. 2013. Circumscribed complexity in ecological networks. pp. 249-258. In: M. Dehmer, A. Mowshowitz and F. Emmert-Streib (Eds.) Advances in Network Complexity, Volume 4. Weinheim : Wiley-Blackwell.

193. Ulanowicz, R.E., R.D. Holt and M. Barfield. 2014. Limits on ecosystem trophic complexity: Insights from ecological network analysis. Ecology Letters 17:127–136.

195. Ulanowicz, R.E. 2014. Reckoning the nonexistent: Putting the science right. Ecological Modelling 293:22–30.

197. González, J., Ortiza, M., Rodríguez-Zaragozad, F., Ulanowicz, R.E., 2016. Assessment of long-term changes of ecosystem indexes in Tongoy Bay(SE Pacific coast): Based on trophic network analysis Ecological Indicators 69:390-399.

201. Ulanowicz, R.E. 2017. Towards a Global Understanding of Development and Evolution Progress in Biophysics and Molecular Biology dx.doi.org/10.1016/j.pbiomolbio.2017.07.008.

202. Xu, Z., Cheng, G., Ulanowicz, R.E., Song, X., Deng, X. and Zhong, F. 2018. The Common Developmental Road: Tensions among Centripetal and Centrifugal Dynamics National Science Review, 5(3):417-426, doi: 10.1093/nsr/nwx033/3101042.

203. Gatti, R.C., Fath, B., Hordijk, W., Kauffman, S. and Ulanowicz, R.E. 2018. Niche emergence as an autocatalytic process in the evolution of ecosystems. J. Theor. Biol. 454:110-117.

204. Ulanowicz, R.E. 2018. Biodiversity, functional redundancy and system stability: Subtle connections. J. Roy. Soc. Interface 15(147):20180367.

205. Ulanowicz, R.E. 2018. Dimensions missing from ecology. Philosophies 3(3):24.

206. Ulanowicz, R.E. 2019. The tripartite nature of causalities in ecosystem dynamics. Current Opinion in Systems Biology 13:129–135.

209. Ulanowicz, R.E. 2019. Information across the ecological hierarchy. Entropy 21:949–955.

210. Ulanowicz, R.E. 2020. Quantifying sustainable balance in ecosystem configurations. Current Research in Environmental Sustainability 1:1–6.

211. Ulanowicz, R.E. 2020. Ecological Clues to the Nature of Consciousness. Entropy 22:611-621; doi:10.3390/e22060611.

212. Cazzolla-Gatti, R., R. Koppl, B.D. Fath, S. Kauffman, W. Hordijk and R.E.Ulanowicz. 2020. On the emergence of ecological and economic niches. J. Bioeconomics doi:10.1007/s10818-020-09295-4.

213. Ulanowicz, R.E. 2021. Socio-ecological networks: A lens that focuses beyond physics. J. Frontiers in Ecology and Evolution Vol. 9. doi:10.3389/fevo.2021.643122.