Ecological interactions

Erincipal element of sustainability. Because it is difficult to imagine owhuman health can be maintained in a degraded, unhealthy natural world, the issue of ecosystem health should be a more fundamental concern. Sustainabihty requires that the health of all diverse species as well as their interrelated ecological functions be maintained. As only one species in a complex web of ecological interactions, humans cannot separate their success from that of the total system. 

E. 1. Newman, The Rhizosphere carbon sources and microbial populations. Ecological Interactions in Soil (A. H. Fitter, ed.), Blackwell Scientific Publications, Oxford, 1985, p. 107. 

Of the compounds listed in Table II, chlorsulfuron and acifluorfen (Figure 2, VI and VII, respectively) look particularly interesting with regard to manipulation of allelochemical production. Both of these compounds can cause large increases in the phenolic titre of plant tissues (e.g. Figures 6 7). Suttle et al. (75) suggested that chlorsulfuron would be an excellent chemical for manipulation of the quality and quantity of secondary phenolic compounds in studies of the role of these potential allelochemics in ecological Interactions. 

Data from Bowen, V.T., J.S. Olsen, C.L. Osterberg, and J. Ravera. 1971. Ecological interactions of marine radioactivity. Pages 200-222 in National Academy of Sciences. Radioactivity in the Marine Environment. Natl. Acad. Sci., Panel on Radioactivity in the Marine Environment. Washington, D.C. 

Volume 30 Phytochemical Diversity and Redundancy in Ecological Interactions Proceedings of the Thirty-fifth Annual Meeting of the Phytochemical Society of North America, SaultSte. Marie, Ontario, Canada, August, 1995... 

The receptors of ecological interactions are still not well understood. In fact, many ecological studies have failed to demonstrate well-defined roles for natural products (Pawlik 1993). Most experimental evidence for natural product receptors derives from biomedical applications. Kahalalide F, for example, is a potent cytotoxic depsipeptide (see Sect. 1.3.2.3) initially found in the sacoglossan mollusc Elysia rufescens and later in the green alga it feeds upon (Hamann and Scheuer... 

Berenbaum MR (1983) Coumarins and caterpillars a case for coevolution. Evolution 37 163-179 Berenbaum MR (1991) Coumarins. In Rosenthal G, Berenbaum MR (eds) Herbivores their interactions with secondary plant metabolites. Academic, New York, pp 221-249 Berenbaum MR (2002) Postgenomic chemical ecology from genetic code to ecological interactions. J Chem Ecol 28 873-896... 

It has always amazed me that the importance of chemical compounds in ecological interactions between plant versus herbivore, insect versus insect, and plant versus plant has been universally accepted, but the importance of antimicrobials in microbial interactions has been ahnost universally denied. 

Berenbaum MR, Zangerl AR. (1996). Phytochemical diversity adaptation or random variation. In JT Romeo, JA Saunders, P Barbosa [Eds.), Phytochemical diversity and redundancy in ecological interactions (pp. 1-24). Plenum Press, New York. 

Romeo, J., Saunders, J. A. and Barbosa, P. (eds.) (1996). Phytochemical Diversity and Redundancy in Ecological Interactions. Recent Advances in Phytochemistry, vol. 30. New York Plenum Press. 

Chemical signals mediate all aspects of insects lives and their ecological interactions. The discipline of chemical ecology seeks to unravel these interactions by identifying and delining the chemicals involved, and by documenting how perception of these chemical mediators modifies behavior and, ultimately, reproductive success. 

Social, Economic, and Ecological Interactions with Sustainable Technology... 

Proteobacteria, were found to account for up to 50% of the community DNA and up to a third of the total mineralization of lignin in these enrichments (Gonzalez et al., 1999). The community composition varied considerably between the microcosms, which might be attributed to differences in inoculum composition, differences in ecological interactions, or a combination of the two (Gonzalez et al., 1999). 

After recognizing the need for consideration of ecological interactions, a program for development of selected AB or management of the indigenous bacterial population can be undertaken... 

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