All Stories

  1. Community Structure and Biogeochemical Impacts of Microbial Life on Floating Pumice

    Article • Applied and Environmental Microbiology, December 2014, ASM Journals

    Dr James Elser, Esteban Balseiro

  2. Diet composition affects the rate and N:P ratio of fish excretion

    Article • Freshwater Biology, November 2014, Wiley

    Dr James Elser

  3. Grasshoppers Regulate N:P Stoichiometric Homeostasis by Changing Phosphorus Contents in Their Frass

    Article • PLoS ONE, August 2014, PLOS

    Dr James Elser

  4. Prokaryotic cells separated from sediments are suitable for elemental composition analysis

    Article • Limnology and Oceanography Methods, July 2014, Wiley

    Dr James Elser

  5. Regime Shift in Fertilizer Commodities Indicates More Turbulence Ahead for Food Security

    Article • PLoS ONE, May 2014, PLOS

    Dr James Elser

  6. High‐frequency fire alters C : N : P stoichiometry in forest litter

    Article • Global Change Biology, April 2014, Wiley

    Dr James Elser

  7. Stoichiometric regulation of phytoplankton toxins

    Article • Ecology Letters, April 2014, Wiley

    Dr James Elser

  8. Ecological stoichiometry: An elementary approach using basic principles

    Article • Limnology and Oceanography, November 2013, Wiley

    Dr James Elser, Prof. Dag O. Hessen, Jotaro Urabe

  9. A stoichiometric producer-grazer model incorporating the effects of excess food-nutrient content on consumer dynamics

    Article • Mathematical Biosciences, August 2013, Elsevier

    Dr James Elser

  10. Carbon use efficiency of microbial communities: stoichiometry, methodology and modelling

    Article • Ecology Letters, April 2013, Wiley

    Dr James Elser

  11. The biogeography of marine plankton traits

    Article • Ecology Letters, January 2013, Wiley

    Dr James Elser

  12. Phosphorus: a limiting nutrient for humanity?

    Article • Current Opinion in Biotechnology, December 2012, Elsevier

    Dr James Elser

  13. The role of diet in phosphorus demand

    Article • Environmental Research Letters, December 2012, Institute of Physics Publishing

    Dr James Elser

  14. Lotka re-loaded: Modeling trophic interactions under stoichiometric constraints

    Article • Ecological Modelling, October 2012, Elsevier

    Dr James Elser

  15. On the “strict homeostasis” assumption in ecological stoichiometry

    Article • Ecological Modelling, September 2012, Elsevier

    Dr James Elser

  16. The Cuatro Ciénegas Basin in Coahuila, Mexico: An Astrobiological Precambrian Park

    Article • Astrobiology, July 2012, Mary Ann Liebert Inc

    Dr James Elser

  17. Travel, Sex, and Food: What's Speciation Got to Do with It?

    Article • Astrobiology, July 2012, Mary Ann Liebert Inc

    Dr James Elser

  18. Faculty Opinions recommendation of Global-scale latitudinal patterns of plant fine-root nitrogen and phosphorus.

    Article • March 2012, F1000Research

    Dr James Elser

  19. A World Awash with Nitrogen

    Article • Science, December 2011, American Association for the Advancement of Science

    Dr James Elser

  20. Greenhouse gas dynamics in lakes receiving atmospheric nitrogen deposition

    Article • Global Biogeochemical Cycles, October 2011, American Geophysical Union (AGU)

    Dr James Elser, Dr Michelle L McCrackin

  21. Faculty Opinions recommendation of Increasing N abundance in the northwestern Pacific Ocean due to atmospheric nitrogen deposition.

    Article • October 2011, F1000Research

    Dr James Elser

  22. A broken biogeochemical cycle

    Article • Nature, October 2011, Springer Science + Business Media

    Dr James Elser

  23. A transgenic approach to enhance phosphorus use efficiency in crops as part of a comprehensive strategy for sustainable agriculture

    Article • Chemosphere, August 2011, Elsevier

    Dr James Elser

  24. Faculty Opinions recommendation of Biogeography and variability of eleven mineral elements in plant leaves across gradients of climate, soil and plant functional type in China.

    Article • July 2011, F1000Research

    Dr James Elser

  25. Faculty Opinions recommendation of How do consumers deal with stoichiometric constraints? Lessons from functional genomics using Daphnia pulex.

    Article • May 2011, F1000Research

    Dr James Elser

  26. Faculty Opinions recommendation of The frequency and magnitude of non-additive responses to multiple nutrient enrichment.

    Article • March 2011, F1000Research

    Dr James Elser

  27. Sustainability Challenges of Phosphorus and Food: Solutions from Closing the Human Phosphorus Cycle

    Article • BioScience, February 2011, Oxford University Press (OUP)

    Dr James Elser

  28. Rapid top–down regulation of plant C:N:P stoichiometry by grasshoppers in an Inner Mongolia grassland ecosystem

    Article • Oecologia, January 2011, Springer Science + Business Media

    Dr James Elser

  29. Denitrification kinetics and denitrifier abundances in sediments of lakes receiving atmospheric nitrogen deposition (Colorado, USA)

    Article • Biodegradation, January 2011, Springer Science + Business Media

    Dr James Elser, Dr Michelle L McCrackin

  30. The origins of the Redfield nitrogen-to-phosphorus ratio are in a homoeostatic protein-to-rRNA ratio

    Article • Ecology Letters, January 2011, Wiley

    Irakli Loladze, Dr James Elser

  31. Stoichiometric homeostasis of vascular plants in the Inner Mongolia grassland

    Article • Oecologia, January 2011, Springer Science + Business Media

    Dr James Elser

  32. Stoichiogenomics: the evolutionary ecology of macromolecular elemental composition

    Article • Trends in Ecology & Evolution, January 2011, Elsevier

    Dr James Elser

  33. Joint effect of phosphorus limitation and temperature on alkaline phosphatase activity and somatic growth in Daphnia magna

    Article • Oecologia, December 2010, Springer Science + Business Media

    Dr James Elser, Prof. Dag O. Hessen

  34. Linking stoichiometric homeostasis with ecosystem structure, functioning, and stability

    Article • Nature Photonics, November 2010, Springer Science + Business Media

    Dr James Elser

  35. Faculty Opinions recommendation of Competitive interactions between two meadow grasses under nitrogen and phosphorus limitation.

    Article • October 2010, F1000Research

    Dr James Elser

  36. Linking stoichiometric homoeostasis with ecosystem structure, functioning and stability

    Article • Ecology Letters, September 2010, Wiley

    Dr James Elser

  37. Faculty Opinions recommendation of Stoichiometric control of organic carbon-nitrate relationships from soils to the sea.

    Article • August 2010, F1000Research

    Dr James Elser

  38. The evolution of biological stoichiometry under global change

    Article • Oikos, April 2010, Wiley

    Dr James Elser, Jotaro Urabe

  39. Faculty Opinions recommendation of The story of phosphorus: Global food security and food for thought.

    Article • March 2010, F1000Research

    Dr James Elser

  40. Soil pH, ecological stoichiometry, and allometric scaling in soil biota

    Article • Nature Photonics, February 2010, Springer Science + Business Media

    Dr James Elser

  41. Soil pH, ecological stoichiometry, and allometric scaling in soil biota

    Article • Nature Photonics, February 2010, Springer Science + Business Media

    Dr James Elser, Prof Christian Mulder

  42. Atmospheric nitrogen deposition influences denitrification and nitrous oxide production in lakes

    Article • Ecology, February 2010, Wiley

    Dr James Elser, Dr Michelle L McCrackin

  43. Molybdenum-nitrogen co-limitation in freshwater and coastal heterocystous cyanobacteria

    Article • Limnology and Oceanography, January 2010, Wiley

    Dr James Elser

  44. III.15 Ecological Stoichiometry

    Article • December 2009, De Gruyter

    Dr James Elser

  45. Nutrient availability and phytoplankton nutrient limitation across a gradient of atmospheric nitrogen deposition

    Article • Ecology, November 2009, Wiley

    Dr James Elser

  46. Soil acidity, ecological stoichiometry and allometric scaling in grassland food webs

    Article • Global Change Biology, October 2009, Wiley

    Dr James Elser, Prof Christian Mulder

  47. Daphnia species invasion, competitive exclusion, and chaotic coexistence

    Article • Discrete and Continuous Dynamical Systems - B, July 2009, American Institute of Mathematical Sciences (AIMS)

    Dr James Elser

  48. Faculty Opinions recommendation of Variable ecological effects of hurricanes: the importance of seasonal timing for survival of lizards on Bahamian islands.

    Article • January 2009, F1000Research

    Dr James Elser

  49. Faculty Opinions recommendation of Alteration of island food-web dynamics following major disturbance by hurricanes.

    Article • January 2009, F1000Research

    Dr James Elser

  50. Importance of Exogenous Selection in a Fish Hybrid Zone: Insights from Reciprocal Transplant Experiments

    Article • Copeia, December 2008, American Society of Ichthyologists and Herpetologists (ASIH)

    Dr James Elser

  51. Biological Stoichiometry

    Article • December 2008, Wiley

    Dr James Elser

  52. Faculty Opinions recommendation of Asymmetric coevolutionary networks facilitate biodiversity maintenance.

    Article • November 2008, F1000Research

    Dr James Elser

  53. Faculty Opinions recommendation of Ecosystem energetic implications of parasite and free-living biomass in three estuaries.

    Article • November 2008, F1000Research

    Dr James Elser

  54. Faculty Opinions recommendation of Ecological community description using the food web, species abundance, and body size.

    Article • October 2008, F1000Research

    Dr James Elser

  55. Faculty Opinions recommendation of Consumer-resource body-size relationships in natural food webs.

    Article • October 2008, F1000Research

    Dr James Elser

  56. The Big Book of Animal Physiology

    Article • BioScience, September 2008, Oxford University Press (OUP)

    Dr James Elser

  57. Do phosphorus requirements for RNA limit genome size in crustacean zooplankton?

    Article • Genome, September 2008, Canadian Science Publishing

    Dr James Elser, Prof. Dag O. Hessen

  58. Microbial endemism: does phosphorus limitation enhance speciation?

    Article • Nature Reviews Microbiology, June 2008, Springer Science + Business Media

    Dr James Elser

  59. Scale‐dependent carbon:nitrogen:phosphorus seston stoichiometry in marine and freshwaters

    Article • Limnology and Oceanography, May 2008, Wiley

    Dr James Elser, Prof. Dag O. Hessen, Jotaro Urabe

  60. Ecological Stoichiometry: Overview

    Article • January 2008, Elsevier

    Dr James Elser

  61. Biological Stoichiometry in Human Cancer

    Article • PLoS ONE, October 2007, PLOS

    Dr James Elser

  62. Stoichiometry and the New Biology: The Future Is Now

    Article • PLoS Biology, July 2007, PLOS

    Dr James Elser

  63. Dynamics of Stoichiometric Bacteria-Algae Interactions in the Epilimnion

    Article • SIAM Journal on Applied Mathematics, January 2007, Society for Industrial & Applied Mathematics (SIAM)

    Dr James Elser

  64. Biological Stoichiometry: A Chemical Bridge between Ecosystem Ecology and Evolutionary Biology

    Article • The American Naturalist, December 2006, University of Chicago Press

    Dr James Elser

  65. The effect of host Chlorella NC64A carbon : phosphorus ratio on the production of Paramecium bursaria Chlorella Virus‐1

    Article • Freshwater Biology, November 2006, Wiley

    Dr James Elser

  66. Coupling of growth rate and body stoichiometry in Daphnia: a role for maintenance processes?

    Article • Freshwater Biology, October 2006, Wiley

    Dr James Elser

  67. Phylogenetic and Growth Form Variation in the Scaling of Nitrogen and Phosphorus in the Seed Plants

    Article • The American Naturalist, October 2006, University of Chicago Press

    Dr James Elser

  68. Signalling and phosphorus: correlations between mate signalling effort and body elemental composition in crickets

    Article • Animal Behaviour, October 2006, Elsevier

    Dr James Elser

  69. TOO MUCH OF A GOOD THING: ON STOICHIOMETRICALLY BALANCED DIETS AND MAXIMAL GROWTH

    Article • Ecology, May 2006, Wiley

    Dr James Elser

  70. Biological stoichiometry of growth in Drosophila melanogaster

    Article • Journal of Insect Physiology, February 2006, Elsevier

    Dr James Elser

  71. Plant allometry, stoichiometry and the temperature‐dependence of primary productivity

    Article • Global Ecology and Biogeography, September 2005, Wiley

    Dr James Elser

  72. Biosimplicity via stoichiometry: the evolution of food-web structure and processes

    Article • April 2005, Oxford University Press (OUP)

    Dr James Elser, Prof. Dag O. Hessen

  73. Dynamics of a stoichiometric discrete producer-grazer model

    Article • The Journal of Difference Equations and Applications, April 2005, Taylor & Francis

    Dr James Elser

  74. Genotype × environment interactions, stoichiometric food quality effects, and clonal coexistence in Daphnia pulex

    Article • Oecologia, March 2005, Springer Science + Business Media

    Dr James Elser, Jotaro Urabe

  75. Elements of ecology and evolution

    Article • Oikos, February 2005, Wiley

    Dr James Elser, Prof. Dag O. Hessen

  76. Metabolic Stoichiometry and the Fate of Excess Carbon and Nutrients in Consumers

    Article • The American Naturalist, January 2005, University of Chicago Press

    Dr James Elser, Prof. Dag O. Hessen, Jotaro Urabe

  77. Erratum to `Modeling and analysis of stoichiometric two-patch consumer–resource systems' by C.R. Miller, Y. Kuang, W.F. Fagan and J.J. Elser [Mathematical Biosciences 189 (2004) 153–184]

    Article • Mathematical Biosciences, September 2004, Elsevier

    Dr James Elser

  78. Stoichiometry and population dynamics

    Article • Ecology Letters, August 2004, Wiley

    Dr James Elser, Prof. Dag O. Hessen

  79. Stoichiometric Plant-Herbivore Models and Their Interpretation

    Article • Mathematical Biosciences and Engineering, July 2004, American Institute of Mathematical Sciences (AIMS)

    Dr James Elser

  80. Modeling and analysis of stoichiometric two-patch consumer–resource systems

    Article • Mathematical Biosciences, June 2004, Elsevier

    Dr James Elser

  81. FUNDAMENTAL CONNECTIONS AMONG ORGANISM C:N:P STOICHIOMETRY, MACROMOLECULAR COMPOSITION, AND GROWTH

    Article • Ecology, May 2004, Wiley

    Dr James Elser

  82. CARBON SEQUESTRATION IN ECOSYSTEMS: THE ROLE OF STOICHIOMETRY

    Article • Ecology, May 2004, Wiley

    Dr James Elser, Prof. Dag O. Hessen

  83. Biological stoichiometry of Daphnia growth: An ecophysiological test of the growth rate hypothesis

    Article • Limnology and Oceanography, May 2004, Wiley

    Dr James Elser

  84. Dietary phosphorus affects the growth of larval Manduca sexta

    Article • Archives of Insect Biochemistry and Physiology, February 2004, Wiley

    Dr James Elser

  85. Effects of stoichiometric dietary mixing on Daphnia growth and reproduction

    Article • Oecologia, February 2004, Springer Science + Business Media

    Dr James Elser

  86. Competition and stoichiometry: coexistence of two predators on one prey

    Article • Theoretical Population Biology, February 2004, Elsevier

    Dr James Elser

  87. Planktonic biodiversity: Scaling up and down

    Article • Limnology and Oceanography, January 2004, Wiley

    Dr James Elser

  88. Associations among ribosomal (r)DNA intergenic spacer length, growth rate, and C:N:P stoichiometry in the genus Daphnia

    Article • Limnology and Oceanography, January 2004, Wiley

    Dr James Elser

  89. Biological stoichiometry of tumor dynamics: Mathematical models and analysis

    Article • Discrete and Continuous Dynamical Systems - B, November 2003, American Institute of Mathematical Sciences (AIMS)

    Dr James Elser

  90. Assessment of ‘top‐down’ and ‘bottom‐up’ forces as determinants of rotifer distribution among lakes in Ontario, Canada

    Article • Ecological Research, November 2003, Wiley

    Dr James Elser, Jotaro Urabe

  91. Biological stoichiometry: a theoretical framework connecting ecosystem ecology, evolution, and biochemistry for application in astrobiology

    Article • International Journal of Astrobiology, July 2003, Cambridge University Press

    Dr James Elser

  92. Stoichiometric impacts of increased carbon dioxide on a planktonic herbivore

    Article • Global Change Biology, May 2003, Wiley

    Dr James Elser, Jotaro Urabe

  93. Biological Stoichiometry: An Ecological Perspective on Tumor Dynamics

    Article • BioScience, January 2003, Oxford University Press (OUP)

    Dr James Elser

  94. Absorption and storage of phosphorus by larval Manduca sexta

    Article • Journal of Insect Physiology, May 2002, Elsevier

    Dr James Elser

  95. Joint Effects of UV Radiation and Phosphorus Supply on Algal Growth Rate and Elemental Composition

    Article • Ecology, February 2002, Wiley

    Dr James Elser

  96. Evidence of phosphorus‐limited individual and population growth of Daphnia in a Canadian Shield lake

    Article • Oikos, February 2002, Wiley

    Dr James Elser, Jotaro Urabe

  97. Effects of light and nutrients on the net accumulation and elemental composition of epilithon in boreal lakes

    Article • Freshwater Biology, January 2002, Wiley

    Dr James Elser

  98. Stoichiometric food quality and herbivore dynamics

    Article • Ecology Letters, November 2001, Wiley

    Dr James Elser

  99. Nutrient Limitation Reduces Food Quality for Zooplankton: Daphnia Response to Seston Phosphorus Enrichment

    Article • Ecology, March 2001, Wiley

    Dr James Elser, Jotaro Urabe

  100. NUTRIENT LIMITATION REDUCES FOOD QUALITY FOR ZOOPLANKTON:DAPHNIARESPONSE TO SESTON PHOSPHORUS ENRICHMENT

    Article • Ecology, March 2001, Wiley

    Dr James Elser, Jotaro Urabe

  101. Ecological stoichiometry: from sea to lake to land

    Article • Trends in Ecology & Evolution, October 2000, Elsevier

    Dr James Elser

  102. Stoichiometric Analysis of Pelagic Ecosystems: The Biogeochemistry of Planktonic Food Webs

    Article • January 2000, Springer Science + Business Media

    Dr James Elser

  103. The pathway to noxious cyanobacteria blooms in lakes: the food web as the final turn

    Article • Freshwater Biology, November 1999, Wiley

    Dr James Elser

  104. The Stoichiometry of Consumer-Driven Nutrient Recycling: Theory, Observations, and Consequences

    Article • Ecology, April 1999, Wiley

    Dr James Elser, Jotaro Urabe

  105. THE STOICHIOMETRY OF CONSUMER-DRIVEN NUTRIENT RECYCLING: THEORY, OBSERVATIONS, AND CONSEQUENCES

    Article • Ecology, April 1999, Wiley

    Dr James Elser, Jotaro Urabe

  106. Nutrient recycling by Daphnia reduces N2 fixation by cyanobacteria

    Article • Limnology and Oceanography, March 1998, Wiley

    Dr James Elser

  107. Factors potentially preventing trophic cascades: Food quality, invertebrate predation, and their interaction

    Article • Limnology and Oceanography, March 1998, Wiley

    Dr James Elser

  108. Stoichiometric Constraints on Food-Web Dynamics: A Whole-Lake Experiment on the Canadian Shield

    Article • Ecosystems, January 1998, Springer Science + Business Media

    Dr James Elser

  109. Effects of a cyclopoid copepod (Diacyclops thomasi) on phytoplankton and the microbial food web

    Article • Aquatic Microbial Ecology, January 1997, Inter-Research Science Center

    Dr James Elser

  110. Organism Size, Life History, and N:P Stoichiometry

    Article • BioScience, October 1996, Oxford University Press (OUP)

    Dr James Elser

  111. Biogeochemistry and Trophic Ecology: A New Food Web Diagram

    Article • January 1996, Springer Science + Business Media

    Dr James Elser

  112. Effects of zooplankton on sedimentation in pelagic ecosystems: Theory and test in two lakes of the Canadian shield

    Article • Biodegradation, September 1995, Springer Science + Business Media

    Dr James Elser

  113. Sources of nitrogen and phosphorus supporting the growth of bacteria and phytoplankton in an oligotrophic Canadian shield lake

    Article • Limnology and Oceanography, March 1995, Wiley

    Dr James Elser

  114. Microconsumer grazing and sources of limiting nutrients for phytoplankton growth: Application and complications of a nutrient‐depletion/dilution‐gradient technique

    Article • Limnology and Oceanography, January 1995, Wiley

    Dr James Elser

  115. Effects of Food Web Compensation After Manipulation of Rainbow Trout in an Oligotrophic Lake

    Article • Ecology, January 1995, Wiley

    Dr James Elser

  116. A stoichiometric analysis of the zooplankton–phytoplankton interaction in marine and freshwater ecosystems

    Article • Nature, July 1994, Springer Science + Business Media

    Dr James Elser

  117. Clearing the Waters: Integrated Water Quality and Fisheries Management, Wisconsin Style

    Article • Ecology, December 1993, Wiley

    Dr James Elser

  118. Zooplankton community dynamics

    Article • August 1993, Cambridge University Press

    Dr James Elser

  119. Phytoplankton community dynamics

    Article • August 1993, Cambridge University Press

    Dr James Elser

  120. The stoichiometry of N and P in the pelagic zone of Castle Lake, California

    Article • Journal of Plankton Research, January 1993, Oxford University Press (OUP)

    Dr James Elser

  121. Phytoplankton Dynamics and the Role of Grazers in Castle Lake, California

    Article • Ecology, June 1992, Wiley

    Dr James Elser

  122. Stoichiometric relationships among producers, consumers and nutrient cycling in pelagic ecosystems

    Article • Biodegradation, January 1992, Springer Science + Business Media

    Dr James Elser

  123. Zooplankton effects on phytoplankton in lakes of contrasting trophic status

    Article • Limnology and Oceanography, January 1991, Wiley

    Dr James Elser

  124. The zooplankton-phytoplankton interface in lakes of contrasting trophic status: an experimental comparison

    Article • Hydrobiologia, August 1990, Springer Science + Business Media

    Dr James Elser

  125. Strength of Zooplankton-Phytoplankton Coupling in Relation to Lake Trophic State

    Article • January 1990, Springer Science + Business Media

    Dr James Elser

  126. The zooplankton-phytoplankton interface in lakes of contrasting trophic status: an experimental comparison

    Article • January 1990, Springer Science + Business Media

    Dr James Elser

  127. Algal Nutrient Deficiency: Growth Bioassays versus Physiological Indicators

    Article • Lake and Reservoir Management, July 1989, Taylor & Francis

    Dr James Elser

  128. Chlorophyll budgets: response to food web manipulation

    Article • Biodegradation, January 1988, Springer Science + Business Media

    Dr James Elser

  129. Zooplankton‐mediated transitions between N‐ and P‐limited algal growth1

    Article • Limnology and Oceanography, January 1988, Wiley

    Dr James Elser

  130. Daphnia size structure, vertical migration, and phosphorus redistribution

    Article • Hydrobiologia, July 1987, Springer Science + Business Media

    Dr James Elser

  131. Species-specific algal responses to zooplankton: experimental and field observations in three nutrient-limited lakes

    Article • Journal of Plankton Research, January 1987, Oxford University Press (OUP)

    Dr James Elser

  132. Paul and Peter Lakes: A Liming Experiment Revisited

    Article • The American Midland Naturalist, October 1986, JSTOR

    Dr James Elser

  133. Alteration of phytoplankton phosphorus status during enrichment experiments: implications for interpreting nutrient enrichment bioassay results

    Article • Hydrobiologia, March 1986, Springer Science + Business Media

    Dr James Elser

  134. Chlorophyll production, degradation, and sedimentation: Implications for paleolimnology1

    Article • Limnology and Oceanography, January 1986, Wiley

    Dr James Elser

  135. Size fractionation of algal chlorophyll, carbon fixation and phosphatase activity: relationships with species-specific size distributions and zooplankton community structure

    Article • Journal of Plankton Research, January 1986, Oxford University Press (OUP)

    Dr James Elser

  136. PHOTOINHIBITION OF TEMPERATE LAKE PHYTOPLANKTON BY NEAR‐SURFACE IRRADIANCE: EVIDENCE FROM VERTICAL PROFILES AND FIELD EXPERIMENTS1

    Article • Journal of Phycology, September 1985, Wiley

    Dr James Elser

  137. Nutrient Availability for Phytoplankton Production in a Multiple-Impoundment Series

    Article • Canadian Journal of Fisheries and Aquatic Sciences, August 1985, Canadian Science Publishing

    Dr James Elser

  138. Effects of roots of Myriophyllum verticillatum L. on sediment redox conditions

    Article • Aquatic Botany, December 1983, Elsevier

    Dr James Elser