Nutrient Acquisition and Concentration by Ant Symbionts: The Incidence and Importance of Biological Interactions to Plant Nutrition

Ecological Aspects of Nitrogen Metabolism in Plants

Volumn , Issue , 2011, Pages 308-329

  Sagers, Cynthia L ^a  

^a UNIVERSITY OF ARKANSAS   (United States)

Author keywords

Angiosperms; Ant symbionts; Biological interactions; Nutrient acquisition; Plant nutrition

Indexed keywords

EID: 84875322003     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1002/9780470959404.ch14     Document Type: Chapter

References (136)

1. 2-N by spruce needles (Picea abies): a field study. Water Air Soil Pollution 85: 1497-1502.
2. Angiosperm Phylogeny Group. 2002. An update of the angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II. Botanical Journal of the Linnean Society 144: 399-436.
3. 3 by rice (Oryza sativa L.) cultivars. Biology and Fertility of Soils 38:257-260.
4. Bailey, I.W. 1922. Notes on neotropical ant-plants. I. Cecropia angulata, sp. Nov. Botanical Gazette 74: 369-91.
5. Bailey, I.W. 1924. Notes on neotropical ant-plants. III. Cordia nodosa Lam. Botanical Gazette 77: 32-49.
6. Baltzer, J.L., Thomas, S.C. 2007. Determinants of whole-plant light requirements in Bornean rain forest tree saplings. Journal of Ecology 95: 1208-1221.
7. Bänfer, G., Moog, U., Fiala, B., Mohamed, M.A., Weising, K., Blattner, F.R. 2006. A chloroplast genealogy of myrmecophytic Macaranga species (Euphorbiaceae) in Southeast Asia reveals, hybridization, vicariance and long-distance dispersals. Molecular Ecology 15: 4409-4424.
8. Beattie, A.J. 1985. The Evolutionary Ecology of Ant-Plant Mutualisms. Cambridge University Press, Cambridge, England. p 182.
9. Beattie, A.J. 1989. Myrmecotrophy: plants fed by ants. Trends in Ecology and Evolution 4: 172-176.
10. Beattie, A.J. 1991. Problems outstanding in ant-plant interaction research. In: Huxley, C.R., Cutler, D.F., Eds. Ant-Plant Interactions. Oxford University Press, Oxford, U.K., pp. 559-576.
11. Beccari, O. 1884-86. Piante Ospitatrici. Malesia vol. 2. Bibografia del istitudo Sordo Muti: Genoa.
12. Belin-Depoux, M., Bastien, D. 2002. Regards sur la myrmécophilie en Guyane frane{ogonek}aise: Les dispositifs d'absorption de Maieta guianensis et la triple association Philodendron-foumis-Aluerodes. Acta Botanica Gallica 149:299-318.
13. Benzing, D.H. 1970. An investigation of two bromeliad myrmecophytes: Tillandsia butzii Mez., T. caput-medusae E.Morren and their ants. Bulletin of the Torrey Botanical Club 97:109-115.
14. Benzing, D.H., Henderson, K., Kessel, B., Sulak, J. 1976. The absorptive capacities of Bromeliad trichomes. American Journal of Botany 63:1009-1014.
15. Benzing, D.H. 1991. Myrmecotrophy: origins, operation, and importance. In: Huxley, C.R., Cutler, D.F., Eds. Ant-Plant Interactions. Oxford University Press, Oxford England, pp. 353-373.
16. Bergback, B., Borg, L. 1989. Effect of acidification on uptake of rubidium, potassium and ammonium ions by spruce. Journal of Plant Nutrition. 12:1473-1482.
17. Billings, W.D., Godfrey, P.J. 1967. Photosynthetic utilization of internal carbon dioxide by hollow-stemmed plants. Science 158:121-123.
18. Bobbink, R., Heil, G.W., Raessen, M.B.A.G. 1992. Atmospheric deposition and canopy exchange processes in heathland ecosystems. Environmental Pollution 75:29-37.
19. Bonnett, H.T 1990. The Nostoc-Gunnera association. In: Rai, A.N., Ed. Handbook of Symbiotic Cyanobacterium, Ed. 1, CRC Press, Boca Raton, FL, pp. 161-171.
20. Cabrera, M., Jaffe, K. 1994. A trophic mutualism between the myrmecophytic Melastomataceae Tococa guianensis Aublet and an Azteca ant species. Ecotropicos 7:1-10.
21. Cammeraat, E.L.H., Risch, A.C. 2008. The impact of ants on mineral soil properties and processes at different spatial scales. Journal of Applied Entomology 132:285-294.
22. Chazdon, R.L., Fetcher, N. 1984. Photosynthetic light environments in a lowland tropical rain forest in Costa Rica. Journal of Ecology 72:553-564.
23. Chevone, B.I., Herzfeld, D.E., Krupa, S.V., Chappelka, A.H. 1986. Direct effects of atmospheric sulfate deposition on vegetation. The Journal of the Air & Waste Management Association 363:813-815.
24. Chiu, W.-L., Peters, G.A., Levieille, G., Still, P.C., Cousins, S., Osborne, B., Elhai, J. 2005. Nitrogen deprivation stimulates symbiotic gland development in Gunnera manicata. Plant Physiology 139:224-230.
25. Culver, D.C., Beattie, A.J. 1983. Effects of ant mounds on soil chemistry and vegetation patterns in a Colorado montane meadow. Ecology 64:485-492.
26. Czerwinski, A., Jakubczyk, H., Petel, J. 1971. The influence of ants of the genus Myrmica on the physico-chemical and microbiological properties of soil within the compass of ant hills in Strzeleckie Meadows. Polish Journal of Soil Science 3:51-58.
27. Darwin, C. 1859. The Origin of Species by Means of Natural Selection: or, the Preservation of Favored Races in the Struggle for Life. John Murray, London.
28. Dauber, J., Wolters, V 2008. Microbial activity and functional diversity in the mounds of three different ant species. Soil Biology and Biochemistry 32:93-99.
29. Davidson, D.W., Fisher, B.L. 1991. Symbiosis of ants with Cecropia as a function of light regime. In: Huxley, C.R., Cutler, D.F., Eds. Ant-Plant Interactions. Oxford University Press, Oxford, UK.
30. Davidson, D.W., McKey, D. 1993. The evolutionary ecology symbiotic ant-plant relationships. Journal of Hymenopteran Research 2:13-83.
31. Davies, S.J., Lum, S.K.Y., Chan, R., Wang, L.K. 2001. Evolution of myrmecophytism in wester Mealesian Macaraga (Euphrbiaceae). Evolution 55:1542-1559.
32. Dean, W.R.J., Yeaton, R.I. 1993. The effects of harvester ant Messor capensis nest-mounds on the physical and chemical properties of soils in the southern Karoo, South Africa. Journal of Arid Environments 25:249-260.
33. Dean, W.R.J., Milton, S.J., Klotz, S. 1997. The role of ant nest-mounds in maintaining small-scale patchiness in dry grasslands in Central Germany. Biodiversity and Conservation 6:1293-1307.
34. Dlussky, G.M. 1981. Ants of Deserts. Nauka Press, Russia.
35. Eldridge, D.J. 1993. Effects of ants on sandy soils in semi-arid eastern Australia-local distribution of nest entrances and their effect on infiltration of water. Australian Journal of Soil Research 31:508-518.
36. Endler, J.A. 1986. Natural Selection in the Wild. Princeton University Press, Princeton, NJ.
37. Evans, R.D. 2001. Physiological mechanisms influencing plant nitrogen isotope composition. Trends in Plant Science 6:121-126.
38. Farji-Brener, A.G., Medina, C.A. 2000. The importance of where to dump the refuse: seed banks and fine roots in nests of the leaf-cutting ants Atta cephalotes and A. colombica. Biotropica 32:120-126.
39. Farji-Brener, A.G., Ghermandi, L. 2009. Leaf-cutting ant nests near roads increase fitness of exotic plant species in natural protected areas. Proceedings of the Royal Society of London. Series B 275:1431-1440.
40. Fiedler, K., Kuhlmann, F., Schlick-Steiner, B.C., Steiner, F.M., Gebauer, G. 2007. Stable N-isotope signatures of central European ants: assessing positions in a trophic gradient. Insectes Sociaux 54:393-402.
41. Fischer, R.C., Richter, A., Wanek, W., Mayer, V 2002. Plants feed ants: food bodies of myrmecophytic Piper and their significance for the interaction with Pheidole bicornis ants. Oecologia 133:186-192.
42. 15N labeling study of nitrogen fluxes from ants to plants in the mutualism of Pheidole and Piper. Journal of Ecology 91:126-134.
43. Fisher, B.L., Sternberg, L.S.L., Price, D. 1990. Variation in the use of orchid extrafloral nectar by ants. Oecologia 83:263-266.
44. Folgarait, P.J. 1998. Ant biodiversity and its relationship to ecosystem functioning: a review. Biodiversity and Conservation 7:1221-1244.
45. Gay, H. 1993a. Animal-fed plants: an investigation in to the uptake of ant-derived nutrients by the far-eastern epiphytic fern Lecanopteris Reinw. (Polypodiaceae). Biological Journal of the Linnean Society 50:221-233.
46. Gay, H. 1993b. Rhizome structure and evolution in the ant-associated epiphytic fern Lecanopteris Reinw. (Polypodiaceae). Botanical Journal of the Linnean Society 113: 135-160.
47. Gay, H., Hensen, R. 1992. Ant specificity and behaviour in mutualisms with epiphytes: the case of Lecanopteris (Polypodiaceae). Biological Journal of the Linnean Society 47: 261-284.
48. Gessler, A., Rennenberg, H. 1998. Atmospheric ammonia: mechanisms of uptake and impacts on N metabolism of plants. In: De Kok, L.J., Studen, I., Eds. Responses of Plant Metabolism to Air Pollution and Global Change. Backhuys, Leiden, pp. 81-94.
49. Ginzburg, O., Whitford, W.G., Steinberger, Y. 2008. Effects of harvester ant (Messor spp.) activity on soil properties and microbial communities in a Negev Desert ecosystem. Biology and Fertility of Soils 45:165-173.
50. Gmur, N.R., Evans, L.S., Cunningham, E.A. 1983. Effects of ammonium sulfate aerosols on vegetation. II. Mode of entry and responses of vegetation. Atmospheric Environment 17:715-721.
51. Heil, M., Fiala, B., Maschwitz, U., Linsenmair, K.E. 2001. On benefits of indirect defence: short- and long-term studies of antiherbivore protection via mutualistic ants. Oecologia 126:395-403.
52. Henry, L.T., Raper Jr., C.D. 1989. Effects of root-zone acidity of utilization of nitrate and ammonium in tobacco plants. Journal of Plant Nutrition 12:811-826.
53. Hutchinson, G.L., Millington, R.J., Peters, D.B. 1972. Atmospheric ammonia: absorption by plant leaves. Science 175:771-772.
54. Huxley, C.R. 1978. The ant-plants Myrmecodia and Hydnophytum (Rubiaceae), and the relationships between their morphology, ant occupants, physiology and ecology. New Phytologist 80:231-268.
55. Huxley, C.R. 1986. Evolution of benevolent ant-plant relationships. In: Huxley, C.R., Cutler, D.F., Eds. Ant-Plant Interactions. Oxford University Press, Oxford England. pp. 257-282.
56. Huxley, C.R. 1991. The tuberous epiphytes of the Rubiaceae I. The Hydnophytinaceae. Blumea 36:1-20.
57. Itino, T., Davies, S.J., Tada, H., Hieda, Y., Inoguchi, M., Itioka, T., Yamane, S., Inoue, T., 2002. Cospeciation of ants and plants. Ecological Research 16:787-793.
58. Janzen, D.H. 1966. Coevolution of mutualism between ants and Acacias in Central America. Evolution 20:249-275.
59. Janzen, D.H 1969. Allelopathy by myrmecophytes: the ant Azteca as an allelopathic agent of Cecropia. Ecology 50:147-153.
60. Janzen, D.H. 1972. Protection of Barteria (Passifloraceae) by Pachysima ants (Pseudomyrmecinae) in a Nigerian rain forest. Ecology 53:885-892.
61. Janzen, D.H. 1974. Epiphytic myrmecophytes in Sarawak: mutualism through the feeding of plants by ants. Biotropica 6:237-239.
62. x
63. Karsten, G. 1895. Morphologische und biologische Untersuchungen uber einige Epiphytenformen der Molukken. Ann Jardin Bot Buitenzorg, XII, pp. 117-195, Pls. XIII-XIX.
64. Kleinfeldt, S.E. 1978. Ant-gardens: the interaction of Codonanthe crassifolia (Gesneriaceae) and Crematogaster longispina (Formicidae). Ecology 59:449-456.
65. Klepper, L.A. 1979. Nicric oxide (NO) and nitrogen dioxide emissions from herbicide-treated soybean plants. Atmospheric Environment 13:57-542.
66. Koptur, S. 1991. Extrafloral nectaries of herbs and trees: modeling the interaction with ants and parasitoids. In: Huxley, C.R., Cutler, D.F., Eds. Ant-Plant Interactions. Oxford University Press, Oxford, U.K. pp. 213-230.
67. Krupka, R.M., Towers, G.H.N. 1959. Studies of the metabolic relations in wheat. Canadian Journal of Botany 37:539-545.
68. 3) on terrestrial vegetation: a review. Environmental Pollution 124:179-221.
69. Lea, P.J., Wolfenden, J., Wellburn, A.R. 1994. Influence of air pollutants upon nitrogen metabolism. In: Alscher, R., Wellburn, A.R., Eds. Plant Responses to Gaseous Environments. Chapman & Hall, London, pp. 279-299.
70. Lenoir, L., Persson, T., Bengtsson, J. 2001. Wood ant nests as potential hot spots for carbon and nitrogen mineralization. Biology and Fertility of Soils 34:235-240.
71. Levan, M.A., Stone, E.L. 1983. Soil modifications by colonies of black meadows ants in a New York old field. Soil Science Society of America Journal 47:1192-1196.
72. Longino, J.T. 1987. Ants provide substrate for epiphytes. Selbyana 9:100-103.
73. Longino, J.T. 1989. Geographic variation and community structure in an ant-plant mutualism: Azteca and Cecropia in Costa Rica. Biotropica 21:126-132.
74. Longino, J.T. 1991. Azteca ants in Cecropia trees: taxonomy, colony structure, and behavior. In: Huxley, C.R., Cutler, D.F., Eds. Ant-Plant Interactions. Oxford University Press, Oxford. pp. 271-288.
75. Madison, M. 1979. Additional observations on ant-gardens in Amazonas. Selbyana 5:107-115.
76. McGinley, M.A., Dhillion, S.S., Neumann, J.C. 1994. Environmental heterogeneity and seedling establishment: ant-plant-microbe interactions. Functional Ecology 8:607-615.
77. McKee, H.S. 1962. Nitrogen Metabolism in Plants. Clarendon Press, Oxford.
78. McNett, K., Longino, J., Barriga, P., Vargas, O., Phillips, K., and Sagers, C.L. 2010. Stable isotope investigation of a cryptic ant-plant association: Mymelachista flavocotea (Hymenoptera: Formicidae) and Ocotea spp. (Lauraceae). Insectes Sociaux 57:67-72.
79. Merrill, E.D. 1945. Plant Life of the Pacific World. New York, Macmillan.
80. Michelangeli, F.A. 2003. Ant protection against herbivory in three species of Tococa (Melastomataceae) occupying different environments. Biotropica 35:181-188.
81. Näsholm, T., Ekblad, A., Nordin, A., Glesler, R., Höberg, M., and Höberg, P. 1998. Boreal forest plants take up organic nitrogen. Nature 392:914-916.
82. Näsholm, T., Kielland, K., Ganeteg, U. 2009. Uptake of organic nitrogen by plants. New Phytologist 182:31-48.
83. 2 by plants. New Phytologist 102:73-84.
84. 2O vapor exchange under controlled conditions. Oecologia 72:542-549.
85. Paris, C.I., Polo, M.G., Garbagnoli, C., Martinez, P., de Ferre, G.S., Folgarait, P.J. 2008. Litter decomposition and soil organisms within and outside of Camponotus punctualtus nests in sown pasture in northeastern Argentina. Applied Soil Ecology 40:271-282.
86. Paungfoo-Lonhienne C., Lonhienne, T.G.A., Rentsch, D., Robinson, N., Christie, C.M., Webb, R.I., Garnage, H.K., Carroll, B.J., Schenk, P.M., Schmidt, S. 2008. Plants can use protein as a nitrogen source without assistance from other organisms. Proceedings of the National Academy of Sciences, USA 105:4524-4529.
87. Petal, J. 1998. The influence of ants on carbon and nitrogen mineralization in drained fen soils. Applied Soil Ecology 9:271-275.
88. Petal, J., Kusinska, A. 1994. Fractional composition of organic matter in the soil of anthills and of the environment of meadows. Pedobiologia 38:493-501.
89. Porter, L.K., Viets, Jr., F.G., Hutchinson, G.L. 1972. Air containing nitrogen-15 ammonia: foliar absorption by corn seedlings. Science 175:759-761.
90. Raab, T.K., Lipson, D.A., Monson, R.K. 1996. Non-mycorrhizal uptake of amino acids by roots of the alpine sedge Lobresia myosuroides: implications of the alpine nitrogen cycle. Oecologia 108:488-494.
91. Raven, J.A. 1996. Into the voids: the distribution, function, development and maintenance of gas spaces in plants. Annals of Botany 78:137-142.
92. Rickson, F.R. 1979. Absorption of animal tissue breakdown products into a plant stem-the feeding of a plant by ants. American Journal of Botany 66:87-90.
93. Rico-Gray, V, Barber, J.T., Thein, L.B., Ellgaard, E.G., Toney, J.J. 1989. An unusual animal-plant interaction: feeding of Schomburgkia tibicinis (Orchidaceae) by ants. American Journal of Botany 76:603-608.
94. Rico-Gray, V, Castro, G. 1996. Effect of an ant-aphid interaction on the reproductive fitness of Paullinia fuscensens (Sapindaceae). Southwestern Naturalist 41:434-440.
95. Rico-Gray, V, Palacios-Rios, M., Garcia-Franco, J.G., MacKay, W.P. 1998. Richness and seasonal variation of ant-plant associations mediated by plant-derived food resources in the semiarid Zapotitlan Valley, Mexico. American Midland Naturalist 140:21-26.
96. Risch, S., McClure, M., Vandermeer, J., Waltz, S. 1977. Mutualism between three species of tropical piper (Piperaceae) and their ant inhabitants. American Midland Naturalist 98:433-444.
97. Rissing, S.W. 1986. Indirect effects of granivory by harvester ants: plant species composition and reproductive increase near ant nests. Oecologia 68:231-234.
98. Rondon, A., Johansson, C., Granat, L. 1993. Dry deposition of nitrogen dioxide and ozone to coniferous forest. Journal of Geophycial Research 98:5159-5172.
99. Sagers, C.L., Ginger, S.M., Evans, R.D. 2000. Carbon and nitrogen isotopes trace nutrient exchange in an ant-plant mutualism. Oecologia 123:582-586.
100. Schimper, A.F.W. 1888. Die Wechselbeziehungen zwischen Pflanzen und Ameisen im tropischen Amerika. Botan. Mitt. aus den Tropen, Jena, Heft 1, pp. 1-95.
101. Schemske, D.W. 1983. Limits to specialization and coevolution in plant-animal mutualism. In: Nitecki, M.H., Eds. Coevolution. University of Chicago Press, Chicago, pp. 67-109.
102. Schubert, K.R. 1986. Products of biological nitrogen fixation in higher plants: synthesis, transport, and metabolism. Annual Review of Plant Physiology 37:539-574.
103. Schupp, E.W. 1986. Azteca protection of Cecropia: ant occupation benefits juvenile trees. Oecologia 70:379-386.
104. Solano, P., Dejean, A. 2004. Ant-fed plants: comparison between three geophytic myrmecophytes. Biological Journal of the Linnean Society 83:433-439.
105. 2) in a tropical wet forest: implications for tropospheric chemistry. Oecologia 127:214-221.
106. Sparks, J. 2009. Ecological ramifications of direct foliar uptake of nitrogen. Oecologia 159:1-13.
107. Stadler, B., Schramm, A., Kalbitz, K. 2006. Ant-mediated effects on spruce litter decomposition, solution chemistry, and microbial activity. Soil Biology and Biochemistry 38:561-572.
108. Sternberg, L. da S.L., Pinzon, M.C., Moreira, M.Z., Mountinho, P., Rojas, E.I., Herre, E.A. 2007. Plants use macronutrients accumulated in leaf-cutting ant nests. Proceedings of the Royal Society Series B: Biological Sciences 274:315-321.
109. Stout, J. 1979. An association of an ant, a mealy bug, and an understory tree from a Costa Rican rainforest. Biotropica 11:309-311.
110. Stulen, I., ter Steege, M. 1995. Light and nitrogen assimilation. In Srivastava, H.S., Singh, R.P., Eds. Nitrogen nutrition in higher plants. Associated Publishing, New Delhi, India. pp. 367-384.
111. Svoma, E., Morawetz, W. 1992. Drüsenhaare, Emergenzen und Blattdomatien bei der Ameisenpflanze Tococa occidentalis. Botanishce Jarhbuch 114:185-200.
112. 2 influx and its correlation with nitrate reduction. New Phytologist 117:575-585.
113. Thompson, J.N. 1981. Reversed animal-plant interactions: the evolution of insectivorous and ant-fed plants. Biological Journal of the Linnean Society 26:147-155.
114. Thompson, J.N. 1988. Variation in interspecific interactions. Annual Review of Ecology and Systematics 19:65-85.
115. Tillberg, C.V 2004. Friend or foe? A behavioral and stable isotopic investigation of an ant-plant symbiosis. Oecologia 140:506-515.
116. Tillberg, C.V., McCarthy, D.P., Dolezal, A.G., Suarez, A.V. 2006. Measuring the trophic ecology of ants using stable isotopes. Insectes Sociaux 53:65-69.
117. Treseder, K.K., Davidson, D.W., Ehleringer, J.R. 1995. Absorption of ant-provided carbon dioxide and nitrogen by a tropical epiphyte. Nature 375:137-139.
118. Trimble, S.T., Sagers, C.L. 2004. Differential host use in two highly specialized ant-plant associations: evidence from stable isotopes. Oecologia 138:74-82.
119. Ule, E. 1901. Ameisengärten in Amazonas-gebiet. Botanische Jarhbuch 30:45-51.
120. Van Hove, L.W.A., Koops, A.J., Adema, E.H., Vredenberg, W.J., Pieters, G.A. 1987a. Analysis of the uptake of atmospheric ammonia by leaves of Phaseolus vulgaris L. Atmospheric Environment 21:1759-1763.
121. Van Hove, L.W.A., Adema, E.H., Vredenberg, W.J. 1987b. The uptake of atmospheric ammonia by leaves. In: Mathy, P., Ed. Air Pollution and Ecosystems, Proceedings of the International Symposium, Grenoble, France, 18-22 May 1987. Reidel, Dordrecht, pp. 734-742.
122. 2 on leaf surfaces. Atmospheric Environment 23:1479-1486.
123. Vasconcelos, H.L., Casimiro, A.B. 1997. Influence of Azteca alfari ants on the exploitation of Cecropia trees by a leaf-cutting ant. Biotropica 29:84-92.
124. Vessey, J.K., Henry, L.T., Chaillou, S., Raper, Jr., C.D. 1990. Root-zone acidity affects relative uptake of nitrate and ammonium from mixed nitrogen sources. Journal of Plant Nutrition 13:95-116.
125. Wagner, D. 1997. The influence of ant nests on Acacia seed production, herbivory and soil nutrients. Journal of Ecology 85:83-93.
126. Wagner, D., Jones, J.B., Gordon, D.M. 2004. Development of harvester ant colonies alters soil chemistry. Soil Biology and Biochemistry 36:797-804.
127. Wagner, D., Jones, J.B. 2006. The impact of harvester ants on decomposition, N mineralization, litter quality, and the availability of N to plants in the Mojave Desert. Soil Biology and Biochemistry 38:2593-2601.
128. Wang, D., Lowery, B., McSweeney, K., Norman, J.M. 1996. Spatial and temporal patterns of ant burrow openings as affected by soil properties and agricultural practices. Pedobiologia 40:201-211.
129. Ward, P.S. 1991. Phylogenetic analysis of pseudomyrmecine ants associated with domatia-bearing plants. In: Huxley, C.R., Cutler, D.F., Eds. Ant-Plant Interactions. Oxford University Press. pp. 335-352.
130. Watkins, J.E., Jr., Cardelás, C.L., Mack, M.C. 2008. Ants mediate nitrogen relations of an epiphytic fern. New Phytologist 180:5-8.
131. 2 concentration, light intensity, temperature and relative humidity determined from controlled dynamic chamber environments. Atmospheric Environment 30:3001-3009.
132. Wellburn, A.R. 1990. Why are atmospheric oxides of nitrogen usually phytotoxic and not alternative fertilizers? New Phytologist 115:395-429.
133. Wildt, J., Kley, D., Rockel, A., Rockel, P., Segschnieder, H.J. 1997. Emission of NO from several higher plant species. Journal of Geophysical Research 102:5919-5927.
134. Wilson, E.J. 1992. Foliar uptake and release of inorganic nitrogen compounds in Pinus sylvestris L. and Picea abies (L.) Karst. New Phytologist 120:407-416.
135. Yu, D.W., Davidson, D.W. 1997. Experimental studies of species-specificity in Cecropia-ant relationships. Ecological Monographs 67:273-294.
136. 2. Environmental Pollution 11:97-108.